I2c tx/rx non-blocking

.vscode/launch.json

@@ -19,16 +19,13 @@
             "environment": [],
             "externalConsole": false,
             "MIMode": "gdb",
-            "miDebuggerPath": "/usr/bin/arm-none-eabi-gdb",
+            "miDebuggerPath": "/usr/local/bin/arm-none-eabi-gdb",
             "debugServerPath": "openocd",
             "debugServerArgs": "-f /usr/local/share/openocd/scripts/interface/stlink.cfg -f /usr/local/share/openocd/scripts/target/stm32g0x.cfg",
             "serverLaunchTimeout": 20000,
             "filterStderr": true,
             "filterStdout": false,
             "serverStarted": "Info : Listening on port 3333 for gdb connections",
-            // "sourceFileMap": {
-            //     "/work/":"${workspaceFolder}"
-            // },
             "sourceFileMap": {
                 "${workspaceRoot}":"${workspaceFolder}"
             },

Core/Inc/main.h

@@ -58,18 +58,12 @@ void Error_Handler(void);
 /* USER CODE END EFP */
 
 /* Private defines -----------------------------------------------------------*/
-#define MCO_Pin GPIO_PIN_0
-#define MCO_GPIO_Port GPIOF
 #define USART2_TX_Pin GPIO_PIN_2
 #define USART2_TX_GPIO_Port GPIOA
-#define USART2_RX_Pin GPIO_PIN_3
+#define USART2_RX_Pin GPIO_PIN_15
 #define USART2_RX_GPIO_Port GPIOA
-#define LED_GREEN_Pin GPIO_PIN_5
+#define LED_GREEN_Pin GPIO_PIN_6
-#define LED_GREEN_GPIO_Port GPIOA
+#define LED_GREEN_GPIO_Port GPIOC
-#define TMS_Pin GPIO_PIN_13
-#define TMS_GPIO_Port GPIOA
-#define TCK_Pin GPIO_PIN_14
-#define TCK_GPIO_Port GPIOA
 /* USER CODE BEGIN Private defines */
 
 /* USER CODE END Private defines */

Core/Inc/stm32g0xx_hal_conf.h

@@ -42,9 +42,9 @@ extern "C" {
 /* #define HAL_EXTI_MODULE_ENABLED   */
 /* #define HAL_FDCAN_MODULE_ENABLED   */
 /* #define HAL_HCD_MODULE_ENABLED   */
-/* #define HAL_I2C_MODULE_ENABLED   */
+#define HAL_I2C_MODULE_ENABLED
 /* #define HAL_I2S_MODULE_ENABLED   */
-#define HAL_IWDG_MODULE_ENABLED
+/* #define HAL_IWDG_MODULE_ENABLED   */
 /* #define HAL_IRDA_MODULE_ENABLED   */
 /* #define HAL_LPTIM_MODULE_ENABLED   */
 /* #define HAL_PCD_MODULE_ENABLED   */

Core/Src/main.c

@@ -5,13 +5,16 @@
 
 #include "main.h"
 
-IWDG_HandleTypeDef hiwdg;
 UART_HandleTypeDef huart2;
+I2C_HandleTypeDef hi2c1;
+
+uint8_t data[2] = {0};
 
 void SystemClock_Config(void);
 static void MX_GPIO_Init(void);
 static void MX_USART2_UART_Init(void);
-static void MX_IWDG_Init(void);
+static void MX_I2C1_Init(void);
+
 
 #ifdef __GNUC__
 #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
@@ -28,35 +31,32 @@ PUTCHAR_PROTOTYPE
 
 int main(void)
 {
-    unsigned int i = 1, j = 40;
-
     HAL_Init();
     SystemClock_Config();
     MX_GPIO_Init();
     MX_USART2_UART_Init();
-    MX_IWDG_Init();
+    MX_I2C1_Init();
 
-    while (1) {
+    data[0] = 1; // Config register
-        if (j < 100) {
+    if(HAL_I2C_Master_Transmit_IT(&hi2c1, (uint16_t)(0x48 << 1), data, 1) != HAL_OK) {
-            j += 10;
+        printf("I2c tx failed.\r\n");
     }
-        else if (j < 200) {
+    while(1) {};
-            j += 20;
-        }
-        else if (j < 400) {
-            j += 40;
-        }
-        if (j > 800) {
-            j = 800;
 }
 
-        printf("%u: Hello World\r\n", i++);
+void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c)
-        HAL_GPIO_TogglePin(LED_GREEN_GPIO_Port, LED_GREEN_Pin);
+{
-        HAL_Delay(j);
+    if(HAL_I2C_Master_Receive_IT(&hi2c1, (uint16_t)(0x48 << 1), data, 2) != HAL_OK) {
-        HAL_IWDG_Refresh(&hiwdg);
+        printf("I2c rx failed.\r\n");
     }
 }
 
+void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c)
+{
+    uint16_t config = (uint16_t)(data[0] << 8) | data[1];
+    printf("ADS1115 config register: 0x%04x\r\n", config);
+}
+
 void SystemClock_Config(void)
 {
     RCC_OscInitTypeDef RCC_OscInitStruct = {0};
@@ -89,24 +89,13 @@ void SystemClock_Config(void)
         Error_Handler();
     }
 
-    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
+    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2 | RCC_PERIPHCLK_I2C1;
     PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
     if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
         Error_Handler();
     }
 }
 
-static void MX_IWDG_Init(void)
-{
-    hiwdg.Instance = IWDG;
-    hiwdg.Init.Prescaler = IWDG_PRESCALER_4;
-    hiwdg.Init.Window = 4095;
-    hiwdg.Init.Reload = 4095;
-    if (HAL_IWDG_Init(&hiwdg) != HAL_OK) {
-        Error_Handler();
-    }
-}
-
 static void MX_USART2_UART_Init(void)
 {
     huart2.Instance = USART2;
@@ -125,6 +114,52 @@ static void MX_USART2_UART_Init(void)
     }
 }
 
+/**
+  * @brief I2C1 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_I2C1_Init(void)
+{
+
+  /* USER CODE BEGIN I2C1_Init 0 */
+
+  /* USER CODE END I2C1_Init 0 */
+
+  /* USER CODE BEGIN I2C1_Init 1 */
+
+  /* USER CODE END I2C1_Init 1 */
+  hi2c1.Instance = I2C1;
+  hi2c1.Init.Timing = 0x10707DBC;
+  hi2c1.Init.OwnAddress1 = 0;
+  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+  hi2c1.Init.OwnAddress2 = 0;
+  hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
+  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Configure Analogue filter
+  */
+  if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Configure Digital filter
+  */
+  if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN I2C1_Init 2 */
+
+  /* USER CODE END I2C1_Init 2 */
+
+}
+
 static void MX_GPIO_Init(void)
 {
     GPIO_InitTypeDef GPIO_InitStruct = {0};
@@ -148,11 +183,3 @@ void Error_Handler(void)
     while (1) {
     }
 }
-
-#ifdef  USE_FULL_ASSERT
-void assert_failed(uint8_t *file, uint32_t line)
-{
-    /* User can add his own implementation to report the file name and line number,
-       ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
-}
-#endif /* USE_FULL_ASSERT */

Core/Src/stm32g0xx_hal_msp.c

@@ -32,3 +32,30 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
         HAL_GPIO_DeInit(GPIOA, USART2_TX_Pin | USART2_RX_Pin);
     }
 }
+
+void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
+{
+    GPIO_InitTypeDef GPIO_InitStruct = {0};
+    if(hi2c->Instance == I2C1) {
+        __HAL_RCC_GPIOA_CLK_ENABLE();
+        GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
+        GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+        GPIO_InitStruct.Pull = GPIO_PULLUP;
+        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+        GPIO_InitStruct.Alternate = GPIO_AF6_I2C1;
+        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+        __HAL_RCC_I2C1_CLK_ENABLE();
+        HAL_NVIC_SetPriority(I2C1_IRQn, 0, 0);
+        HAL_NVIC_EnableIRQ(I2C1_IRQn);
+    }
+}
+
+void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
+{
+    if(hi2c->Instance == I2C1) {
+        __HAL_RCC_I2C1_CLK_DISABLE();
+        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9);
+        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_10);
+        HAL_NVIC_DisableIRQ(I2C1_IRQn);
+    }
+}

Core/Src/stm32g0xx_it.c

@@ -1,16 +1,16 @@
 #include "main.h"
 #include "stm32g0xx_it.h"
 
+extern I2C_HandleTypeDef hi2c1;
+
 void NMI_Handler(void)
 {
-	while (1) {
+    while (1) {}
-	}
 }
 
 void HardFault_Handler(void)
 {
-	while (1) {
+    while (1) {}
-	}
 }
 
 void SVC_Handler(void)
@@ -25,3 +25,12 @@ void SysTick_Handler(void)
 {
     HAL_IncTick();
 }
+
+void I2C1_IRQHandler(void)
+{
+    if(hi2c1.Instance->ISR & (I2C_FLAG_BERR | I2C_FLAG_ARLO | I2C_FLAG_OVR)) {
+        HAL_I2C_ER_IRQHandler(&hi2c1);
+    } else {
+        HAL_I2C_EV_IRQHandler(&hi2c1);
+    }
+}

Core/Startup/startup_stm32g031y8yx.s

@@ -1,8 +1,8 @@
 /**
   ******************************************************************************
-  * @file      startup_stm32g071xx.s
+  * @file      startup_stm32g031xx.s
   * @author    MCD Application Team
-  * @brief     STM32G071xx devices vector table GCC toolchain.
+  * @brief     STM32G031xx devices vector table GCC toolchain.
   *            This module performs:
   *                - Set the initial SP
   *                - Set the initial PC == Reset_Handler,
@@ -14,7 +14,7 @@
   ******************************************************************************
   * @attention
   *
-  * Copyright (c) 2018 STMicroelectronics. All rights reserved.
+  * Copyright (c) 2019 STMicroelectronics. All rights reserved.
   *
   * This software component is licensed by ST under Apache License, Version 2.0,
   * the "License"; You may not use this file except in compliance with the
@@ -154,19 +154,19 @@ g_pfnVectors:
   .word EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
   .word EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
   .word EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
-  .word UCPD1_2_IRQHandler                /* UCPD1, UCPD2                 */
+  .word 0                                 /* reserved                     */
   .word DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
   .word DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
-  .word DMA1_Ch4_7_DMAMUX1_OVR_IRQHandler /* DMA1 Channel 4 to Channel 7, DMAMUX1 overrun */
+  .word DMA1_Ch4_5_DMAMUX1_OVR_IRQHandler /* DMA1 Channel 4 to Channel 5, DMAMUX1 overrun */
-  .word ADC1_COMP_IRQHandler              /* ADC1, COMP1 and COMP2         */
+  .word ADC1_IRQHandler                   /* ADC1                        */
   .word TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
   .word TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
   .word TIM2_IRQHandler                   /* TIM2                         */
   .word TIM3_IRQHandler                   /* TIM3                         */
-  .word TIM6_DAC_LPTIM1_IRQHandler        /* TIM6, DAC and LPTIM1         */
+  .word LPTIM1_IRQHandler                 /* LPTIM1                       */
-  .word TIM7_LPTIM2_IRQHandler            /* TIM7 and LPTIM2              */
+  .word LPTIM2_IRQHandler                 /* LPTIM2                       */
   .word TIM14_IRQHandler                  /* TIM14                        */
-  .word TIM15_IRQHandler                  /* TIM15                        */
+  .word 0                                 /* reserved                     */
   .word TIM16_IRQHandler                  /* TIM16                        */
   .word TIM17_IRQHandler                  /* TIM17                        */
   .word I2C1_IRQHandler                   /* I2C1                         */
@@ -175,8 +175,8 @@ g_pfnVectors:
   .word SPI2_IRQHandler                   /* SPI2                         */
   .word USART1_IRQHandler                 /* USART1                       */
   .word USART2_IRQHandler                 /* USART2                       */
-  .word USART3_4_LPUART1_IRQHandler       /* USART3, USART4 and LPUART1   */
+  .word LPUART1_IRQHandler                /* LPUART1                      */
-  .word CEC_IRQHandler                    /* CEC                          */
+  .word 0                                 /* reserved                     */
 
 /*******************************************************************************
 *
@@ -225,20 +225,17 @@ g_pfnVectors:
   .weak      EXTI4_15_IRQHandler
   .thumb_set EXTI4_15_IRQHandler,Default_Handler
 
-  .weak      UCPD1_2_IRQHandler
-  .thumb_set UCPD1_2_IRQHandler,Default_Handler
-
   .weak      DMA1_Channel1_IRQHandler
   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
 
   .weak      DMA1_Channel2_3_IRQHandler
   .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
 
-  .weak      DMA1_Ch4_7_DMAMUX1_OVR_IRQHandler
+  .weak      DMA1_Ch4_5_DMAMUX1_OVR_IRQHandler
-  .thumb_set DMA1_Ch4_7_DMAMUX1_OVR_IRQHandler,Default_Handler
+  .thumb_set DMA1_Ch4_5_DMAMUX1_OVR_IRQHandler,Default_Handler
 
-  .weak      ADC1_COMP_IRQHandler
+  .weak      ADC1_IRQHandler
-  .thumb_set ADC1_COMP_IRQHandler,Default_Handler
+  .thumb_set ADC1_IRQHandler,Default_Handler
 
   .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
   .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
@@ -252,18 +249,15 @@ g_pfnVectors:
   .weak      TIM3_IRQHandler
   .thumb_set TIM3_IRQHandler,Default_Handler
 
-  .weak      TIM6_DAC_LPTIM1_IRQHandler
+  .weak      LPTIM1_IRQHandler
-  .thumb_set TIM6_DAC_LPTIM1_IRQHandler,Default_Handler
+  .thumb_set LPTIM1_IRQHandler,Default_Handler
 
-  .weak      TIM7_LPTIM2_IRQHandler
+  .weak      LPTIM2_IRQHandler
-  .thumb_set TIM7_LPTIM2_IRQHandler,Default_Handler
+  .thumb_set LPTIM2_IRQHandler,Default_Handler
 
   .weak      TIM14_IRQHandler
   .thumb_set TIM14_IRQHandler,Default_Handler
 
-  .weak      TIM15_IRQHandler
-  .thumb_set TIM15_IRQHandler,Default_Handler
-
   .weak      TIM16_IRQHandler
   .thumb_set TIM16_IRQHandler,Default_Handler
 
@@ -288,11 +282,8 @@ g_pfnVectors:
   .weak      USART2_IRQHandler
   .thumb_set USART2_IRQHandler,Default_Handler
 
-  .weak      USART3_4_LPUART1_IRQHandler
+  .weak      LPUART1_IRQHandler
-  .thumb_set USART3_4_LPUART1_IRQHandler,Default_Handler
+  .thumb_set LPUART1_IRQHandler,Default_Handler
-
-  .weak      CEC_IRQHandler
-  .thumb_set CEC_IRQHandler,Default_Handler
 
 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
 

Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_i2c.h

@@ -0,0 +1,782 @@
+/**
+  ******************************************************************************
+  * @file    stm32g0xx_hal_i2c.h
+  * @author  MCD Application Team
+  * @brief   Header file of I2C HAL module.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2018 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef STM32G0xx_HAL_I2C_H
+#define STM32G0xx_HAL_I2C_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32g0xx_hal_def.h"
+
+/** @addtogroup STM32G0xx_HAL_Driver
+  * @{
+  */
+
+/** @addtogroup I2C
+  * @{
+  */
+
+/* Exported types ------------------------------------------------------------*/
+/** @defgroup I2C_Exported_Types I2C Exported Types
+  * @{
+  */
+
+/** @defgroup I2C_Configuration_Structure_definition I2C Configuration Structure definition
+  * @brief  I2C Configuration Structure definition
+  * @{
+  */
+typedef struct
+{
+  uint32_t Timing;              /*!< Specifies the I2C_TIMINGR_register value.
+                                  This parameter calculated by referring to I2C initialization
+                                         section in Reference manual */
+
+  uint32_t OwnAddress1;         /*!< Specifies the first device own address.
+                                  This parameter can be a 7-bit or 10-bit address. */
+
+  uint32_t AddressingMode;      /*!< Specifies if 7-bit or 10-bit addressing mode is selected.
+                                  This parameter can be a value of @ref I2C_ADDRESSING_MODE */
+
+  uint32_t DualAddressMode;     /*!< Specifies if dual addressing mode is selected.
+                                  This parameter can be a value of @ref I2C_DUAL_ADDRESSING_MODE */
+
+  uint32_t OwnAddress2;         /*!< Specifies the second device own address if dual addressing mode is selected
+                                  This parameter can be a 7-bit address. */
+
+  uint32_t OwnAddress2Masks;    /*!< Specifies the acknowledge mask address second device own address if dual addressing mode is selected
+                                  This parameter can be a value of @ref I2C_OWN_ADDRESS2_MASKS */
+
+  uint32_t GeneralCallMode;     /*!< Specifies if general call mode is selected.
+                                  This parameter can be a value of @ref I2C_GENERAL_CALL_ADDRESSING_MODE */
+
+  uint32_t NoStretchMode;       /*!< Specifies if nostretch mode is selected.
+                                  This parameter can be a value of @ref I2C_NOSTRETCH_MODE */
+
+} I2C_InitTypeDef;
+
+/**
+  * @}
+  */
+
+/** @defgroup HAL_state_structure_definition HAL state structure definition
+  * @brief  HAL State structure definition
+  * @note  HAL I2C State value coding follow below described bitmap :\n
+  *          b7-b6  Error information\n
+  *             00 : No Error\n
+  *             01 : Abort (Abort user request on going)\n
+  *             10 : Timeout\n
+  *             11 : Error\n
+  *          b5     Peripheral initialization status\n
+  *             0  : Reset (peripheral not initialized)\n
+  *             1  : Init done (peripheral initialized and ready to use. HAL I2C Init function called)\n
+  *          b4     (not used)\n
+  *             x  : Should be set to 0\n
+  *          b3\n
+  *             0  : Ready or Busy (No Listen mode ongoing)\n
+  *             1  : Listen (peripheral in Address Listen Mode)\n
+  *          b2     Intrinsic process state\n
+  *             0  : Ready\n
+  *             1  : Busy (peripheral busy with some configuration or internal operations)\n
+  *          b1     Rx state\n
+  *             0  : Ready (no Rx operation ongoing)\n
+  *             1  : Busy (Rx operation ongoing)\n
+  *          b0     Tx state\n
+  *             0  : Ready (no Tx operation ongoing)\n
+  *             1  : Busy (Tx operation ongoing)
+  * @{
+  */
+typedef enum
+{
+  HAL_I2C_STATE_RESET             = 0x00U,   /*!< Peripheral is not yet Initialized         */
+  HAL_I2C_STATE_READY             = 0x20U,   /*!< Peripheral Initialized and ready for use  */
+  HAL_I2C_STATE_BUSY              = 0x24U,   /*!< An internal process is ongoing            */
+  HAL_I2C_STATE_BUSY_TX           = 0x21U,   /*!< Data Transmission process is ongoing      */
+  HAL_I2C_STATE_BUSY_RX           = 0x22U,   /*!< Data Reception process is ongoing         */
+  HAL_I2C_STATE_LISTEN            = 0x28U,   /*!< Address Listen Mode is ongoing            */
+  HAL_I2C_STATE_BUSY_TX_LISTEN    = 0x29U,   /*!< Address Listen Mode and Data Transmission
+                                                 process is ongoing                         */
+  HAL_I2C_STATE_BUSY_RX_LISTEN    = 0x2AU,   /*!< Address Listen Mode and Data Reception
+                                                 process is ongoing                         */
+  HAL_I2C_STATE_ABORT             = 0x60U,   /*!< Abort user request ongoing                */
+  HAL_I2C_STATE_TIMEOUT           = 0xA0U,   /*!< Timeout state                             */
+  HAL_I2C_STATE_ERROR             = 0xE0U    /*!< Error                                     */
+
+} HAL_I2C_StateTypeDef;
+
+/**
+  * @}
+  */
+
+/** @defgroup HAL_mode_structure_definition HAL mode structure definition
+  * @brief  HAL Mode structure definition
+  * @note  HAL I2C Mode value coding follow below described bitmap :\n
+  *          b7     (not used)\n
+  *             x  : Should be set to 0\n
+  *          b6\n
+  *             0  : None\n
+  *             1  : Memory (HAL I2C communication is in Memory Mode)\n
+  *          b5\n
+  *             0  : None\n
+  *             1  : Slave (HAL I2C communication is in Slave Mode)\n
+  *          b4\n
+  *             0  : None\n
+  *             1  : Master (HAL I2C communication is in Master Mode)\n
+  *          b3-b2-b1-b0  (not used)\n
+  *             xxxx : Should be set to 0000
+  * @{
+  */
+typedef enum
+{
+  HAL_I2C_MODE_NONE               = 0x00U,   /*!< No I2C communication on going             */
+  HAL_I2C_MODE_MASTER             = 0x10U,   /*!< I2C communication is in Master Mode       */
+  HAL_I2C_MODE_SLAVE              = 0x20U,   /*!< I2C communication is in Slave Mode        */
+  HAL_I2C_MODE_MEM                = 0x40U    /*!< I2C communication is in Memory Mode       */
+
+} HAL_I2C_ModeTypeDef;
+
+/**
+  * @}
+  */
+
+/** @defgroup I2C_Error_Code_definition I2C Error Code definition
+  * @brief  I2C Error Code definition
+  * @{
+  */
+#define HAL_I2C_ERROR_NONE      (0x00000000U)    /*!< No error              */
+#define HAL_I2C_ERROR_BERR      (0x00000001U)    /*!< BERR error            */
+#define HAL_I2C_ERROR_ARLO      (0x00000002U)    /*!< ARLO error            */
+#define HAL_I2C_ERROR_AF        (0x00000004U)    /*!< ACKF error            */
+#define HAL_I2C_ERROR_OVR       (0x00000008U)    /*!< OVR error             */
+#define HAL_I2C_ERROR_DMA       (0x00000010U)    /*!< DMA transfer error    */
+#define HAL_I2C_ERROR_TIMEOUT   (0x00000020U)    /*!< Timeout error         */
+#define HAL_I2C_ERROR_SIZE      (0x00000040U)    /*!< Size Management error */
+#define HAL_I2C_ERROR_DMA_PARAM (0x00000080U)    /*!< DMA Parameter Error   */
+#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
+#define HAL_I2C_ERROR_INVALID_CALLBACK  (0x00000100U)    /*!< Invalid Callback error */
+#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
+#define HAL_I2C_ERROR_INVALID_PARAM     (0x00000200U)    /*!< Invalid Parameters error  */
+/**
+  * @}
+  */
+
+/** @defgroup I2C_handle_Structure_definition I2C handle Structure definition
+  * @brief  I2C handle Structure definition
+  * @{
+  */
+typedef struct __I2C_HandleTypeDef
+{
+  I2C_TypeDef                *Instance;      /*!< I2C registers base address                */
+
+  I2C_InitTypeDef            Init;           /*!< I2C communication parameters              */
+
+  uint8_t                    *pBuffPtr;      /*!< Pointer to I2C transfer buffer            */
+
+  uint16_t                   XferSize;       /*!< I2C transfer size                         */
+
+  __IO uint16_t              XferCount;      /*!< I2C transfer counter                      */
+
+  __IO uint32_t              XferOptions;    /*!< I2C sequantial transfer options, this parameter can
+                                                  be a value of @ref I2C_XFEROPTIONS */
+
+  __IO uint32_t              PreviousState;  /*!< I2C communication Previous state          */
+
+  HAL_StatusTypeDef(*XferISR)(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources);  /*!< I2C transfer IRQ handler function pointer */
+
+  DMA_HandleTypeDef          *hdmatx;        /*!< I2C Tx DMA handle parameters              */
+
+  DMA_HandleTypeDef          *hdmarx;        /*!< I2C Rx DMA handle parameters              */
+
+  HAL_LockTypeDef            Lock;           /*!< I2C locking object                        */
+
+  __IO HAL_I2C_StateTypeDef  State;          /*!< I2C communication state                   */
+
+  __IO HAL_I2C_ModeTypeDef   Mode;           /*!< I2C communication mode                    */
+
+  __IO uint32_t              ErrorCode;      /*!< I2C Error code                            */
+
+  __IO uint32_t              AddrEventCount; /*!< I2C Address Event counter                 */
+
+#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
+  void (* MasterTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);           /*!< I2C Master Tx Transfer completed callback */
+  void (* MasterRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);           /*!< I2C Master Rx Transfer completed callback */
+  void (* SlaveTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);            /*!< I2C Slave Tx Transfer completed callback  */
+  void (* SlaveRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);            /*!< I2C Slave Rx Transfer completed callback  */
+  void (* ListenCpltCallback)(struct __I2C_HandleTypeDef *hi2c);             /*!< I2C Listen Complete callback              */
+  void (* MemTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);              /*!< I2C Memory Tx Transfer completed callback */
+  void (* MemRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);              /*!< I2C Memory Rx Transfer completed callback */
+  void (* ErrorCallback)(struct __I2C_HandleTypeDef *hi2c);                  /*!< I2C Error callback                        */
+  void (* AbortCpltCallback)(struct __I2C_HandleTypeDef *hi2c);              /*!< I2C Abort callback                        */
+
+  void (* AddrCallback)(struct __I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode);  /*!< I2C Slave Address Match callback */
+
+  void (* MspInitCallback)(struct __I2C_HandleTypeDef *hi2c);                /*!< I2C Msp Init callback                     */
+  void (* MspDeInitCallback)(struct __I2C_HandleTypeDef *hi2c);              /*!< I2C Msp DeInit callback                   */
+
+#endif  /* USE_HAL_I2C_REGISTER_CALLBACKS */
+} I2C_HandleTypeDef;
+
+#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
+/**
+  * @brief  HAL I2C Callback ID enumeration definition
+  */
+typedef enum
+{
+  HAL_I2C_MASTER_TX_COMPLETE_CB_ID      = 0x00U,    /*!< I2C Master Tx Transfer completed callback ID  */
+  HAL_I2C_MASTER_RX_COMPLETE_CB_ID      = 0x01U,    /*!< I2C Master Rx Transfer completed callback ID  */
+  HAL_I2C_SLAVE_TX_COMPLETE_CB_ID       = 0x02U,    /*!< I2C Slave Tx Transfer completed callback ID   */
+  HAL_I2C_SLAVE_RX_COMPLETE_CB_ID       = 0x03U,    /*!< I2C Slave Rx Transfer completed callback ID   */
+  HAL_I2C_LISTEN_COMPLETE_CB_ID         = 0x04U,    /*!< I2C Listen Complete callback ID               */
+  HAL_I2C_MEM_TX_COMPLETE_CB_ID         = 0x05U,    /*!< I2C Memory Tx Transfer callback ID            */
+  HAL_I2C_MEM_RX_COMPLETE_CB_ID         = 0x06U,    /*!< I2C Memory Rx Transfer completed callback ID  */
+  HAL_I2C_ERROR_CB_ID                   = 0x07U,    /*!< I2C Error callback ID                         */
+  HAL_I2C_ABORT_CB_ID                   = 0x08U,    /*!< I2C Abort callback ID                         */
+
+  HAL_I2C_MSPINIT_CB_ID                 = 0x09U,    /*!< I2C Msp Init callback ID                      */
+  HAL_I2C_MSPDEINIT_CB_ID               = 0x0AU     /*!< I2C Msp DeInit callback ID                    */
+
+} HAL_I2C_CallbackIDTypeDef;
+
+/**
+  * @brief  HAL I2C Callback pointer definition
+  */
+typedef  void (*pI2C_CallbackTypeDef)(I2C_HandleTypeDef *hi2c); /*!< pointer to an I2C callback function */
+typedef  void (*pI2C_AddrCallbackTypeDef)(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); /*!< pointer to an I2C Address Match callback function */
+
+#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+/* Exported constants --------------------------------------------------------*/
+
+/** @defgroup I2C_Exported_Constants I2C Exported Constants
+  * @{
+  */
+
+/** @defgroup I2C_XFEROPTIONS  I2C Sequential Transfer Options
+  * @{
+  */
+#define I2C_FIRST_FRAME                 ((uint32_t)I2C_SOFTEND_MODE)
+#define I2C_FIRST_AND_NEXT_FRAME        ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE))
+#define I2C_NEXT_FRAME                  ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE))
+#define I2C_FIRST_AND_LAST_FRAME        ((uint32_t)I2C_AUTOEND_MODE)
+#define I2C_LAST_FRAME                  ((uint32_t)I2C_AUTOEND_MODE)
+#define I2C_LAST_FRAME_NO_STOP          ((uint32_t)I2C_SOFTEND_MODE)
+
+/* List of XferOptions in usage of :
+ * 1- Restart condition in all use cases (direction change or not)
+ */
+#define  I2C_OTHER_FRAME                (0x000000AAU)
+#define  I2C_OTHER_AND_LAST_FRAME       (0x0000AA00U)
+/**
+  * @}
+  */
+
+/** @defgroup I2C_ADDRESSING_MODE I2C Addressing Mode
+  * @{
+  */
+#define I2C_ADDRESSINGMODE_7BIT         (0x00000001U)
+#define I2C_ADDRESSINGMODE_10BIT        (0x00000002U)
+/**
+  * @}
+  */
+
+/** @defgroup I2C_DUAL_ADDRESSING_MODE I2C Dual Addressing Mode
+  * @{
+  */
+#define I2C_DUALADDRESS_DISABLE         (0x00000000U)
+#define I2C_DUALADDRESS_ENABLE          I2C_OAR2_OA2EN
+/**
+  * @}
+  */
+
+/** @defgroup I2C_OWN_ADDRESS2_MASKS I2C Own Address2 Masks
+  * @{
+  */
+#define I2C_OA2_NOMASK                  ((uint8_t)0x00U)
+#define I2C_OA2_MASK01                  ((uint8_t)0x01U)
+#define I2C_OA2_MASK02                  ((uint8_t)0x02U)
+#define I2C_OA2_MASK03                  ((uint8_t)0x03U)
+#define I2C_OA2_MASK04                  ((uint8_t)0x04U)
+#define I2C_OA2_MASK05                  ((uint8_t)0x05U)
+#define I2C_OA2_MASK06                  ((uint8_t)0x06U)
+#define I2C_OA2_MASK07                  ((uint8_t)0x07U)
+/**
+  * @}
+  */
+
+/** @defgroup I2C_GENERAL_CALL_ADDRESSING_MODE I2C General Call Addressing Mode
+  * @{
+  */
+#define I2C_GENERALCALL_DISABLE         (0x00000000U)
+#define I2C_GENERALCALL_ENABLE          I2C_CR1_GCEN
+/**
+  * @}
+  */
+
+/** @defgroup I2C_NOSTRETCH_MODE I2C No-Stretch Mode
+  * @{
+  */
+#define I2C_NOSTRETCH_DISABLE           (0x00000000U)
+#define I2C_NOSTRETCH_ENABLE            I2C_CR1_NOSTRETCH
+/**
+  * @}
+  */
+
+/** @defgroup I2C_MEMORY_ADDRESS_SIZE I2C Memory Address Size
+  * @{
+  */
+#define I2C_MEMADD_SIZE_8BIT            (0x00000001U)
+#define I2C_MEMADD_SIZE_16BIT           (0x00000002U)
+/**
+  * @}
+  */
+
+/** @defgroup I2C_XFERDIRECTION I2C Transfer Direction Master Point of View
+  * @{
+  */
+#define I2C_DIRECTION_TRANSMIT          (0x00000000U)
+#define I2C_DIRECTION_RECEIVE           (0x00000001U)
+/**
+  * @}
+  */
+
+/** @defgroup I2C_RELOAD_END_MODE I2C Reload End Mode
+  * @{
+  */
+#define  I2C_RELOAD_MODE                I2C_CR2_RELOAD
+#define  I2C_AUTOEND_MODE               I2C_CR2_AUTOEND
+#define  I2C_SOFTEND_MODE               (0x00000000U)
+/**
+  * @}
+  */
+
+/** @defgroup I2C_START_STOP_MODE I2C Start or Stop Mode
+  * @{
+  */
+#define  I2C_NO_STARTSTOP               (0x00000000U)
+#define  I2C_GENERATE_STOP              (uint32_t)(0x80000000U | I2C_CR2_STOP)
+#define  I2C_GENERATE_START_READ        (uint32_t)(0x80000000U | I2C_CR2_START | I2C_CR2_RD_WRN)
+#define  I2C_GENERATE_START_WRITE       (uint32_t)(0x80000000U | I2C_CR2_START)
+/**
+  * @}
+  */
+
+/** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition
+  * @brief I2C Interrupt definition
+  *        Elements values convention: 0xXXXXXXXX
+  *           - XXXXXXXX  : Interrupt control mask
+  * @{
+  */
+#define I2C_IT_ERRI                     I2C_CR1_ERRIE
+#define I2C_IT_TCI                      I2C_CR1_TCIE
+#define I2C_IT_STOPI                    I2C_CR1_STOPIE
+#define I2C_IT_NACKI                    I2C_CR1_NACKIE
+#define I2C_IT_ADDRI                    I2C_CR1_ADDRIE
+#define I2C_IT_RXI                      I2C_CR1_RXIE
+#define I2C_IT_TXI                      I2C_CR1_TXIE
+/**
+  * @}
+  */
+
+/** @defgroup I2C_Flag_definition I2C Flag definition
+  * @{
+  */
+#define I2C_FLAG_TXE                    I2C_ISR_TXE
+#define I2C_FLAG_TXIS                   I2C_ISR_TXIS
+#define I2C_FLAG_RXNE                   I2C_ISR_RXNE
+#define I2C_FLAG_ADDR                   I2C_ISR_ADDR
+#define I2C_FLAG_AF                     I2C_ISR_NACKF
+#define I2C_FLAG_STOPF                  I2C_ISR_STOPF
+#define I2C_FLAG_TC                     I2C_ISR_TC
+#define I2C_FLAG_TCR                    I2C_ISR_TCR
+#define I2C_FLAG_BERR                   I2C_ISR_BERR
+#define I2C_FLAG_ARLO                   I2C_ISR_ARLO
+#define I2C_FLAG_OVR                    I2C_ISR_OVR
+#define I2C_FLAG_PECERR                 I2C_ISR_PECERR
+#define I2C_FLAG_TIMEOUT                I2C_ISR_TIMEOUT
+#define I2C_FLAG_ALERT                  I2C_ISR_ALERT
+#define I2C_FLAG_BUSY                   I2C_ISR_BUSY
+#define I2C_FLAG_DIR                    I2C_ISR_DIR
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/* Exported macros -----------------------------------------------------------*/
+
+/** @defgroup I2C_Exported_Macros I2C Exported Macros
+  * @{
+  */
+
+/** @brief Reset I2C handle state.
+  * @param  __HANDLE__ specifies the I2C Handle.
+  * @retval None
+  */
+#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
+#define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__)                do{                                                   \
+                                                                    (__HANDLE__)->State = HAL_I2C_STATE_RESET;       \
+                                                                    (__HANDLE__)->MspInitCallback = NULL;            \
+                                                                    (__HANDLE__)->MspDeInitCallback = NULL;          \
+                                                                  } while(0)
+#else
+#define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__)                ((__HANDLE__)->State = HAL_I2C_STATE_RESET)
+#endif
+
+/** @brief  Enable the specified I2C interrupt.
+  * @param  __HANDLE__ specifies the I2C Handle.
+  * @param  __INTERRUPT__ specifies the interrupt source to enable.
+  *        This parameter can be one of the following values:
+  *            @arg @ref I2C_IT_ERRI  Errors interrupt enable
+  *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable
+  *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable
+  *            @arg @ref I2C_IT_NACKI NACK received interrupt enable
+  *            @arg @ref I2C_IT_ADDRI Address match interrupt enable
+  *            @arg @ref I2C_IT_RXI   RX interrupt enable
+  *            @arg @ref I2C_IT_TXI   TX interrupt enable
+  *
+  * @retval None
+  */
+#define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__)          ((__HANDLE__)->Instance->CR1 |= (__INTERRUPT__))
+
+/** @brief  Disable the specified I2C interrupt.
+  * @param  __HANDLE__ specifies the I2C Handle.
+  * @param  __INTERRUPT__ specifies the interrupt source to disable.
+  *        This parameter can be one of the following values:
+  *            @arg @ref I2C_IT_ERRI  Errors interrupt enable
+  *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable
+  *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable
+  *            @arg @ref I2C_IT_NACKI NACK received interrupt enable
+  *            @arg @ref I2C_IT_ADDRI Address match interrupt enable
+  *            @arg @ref I2C_IT_RXI   RX interrupt enable
+  *            @arg @ref I2C_IT_TXI   TX interrupt enable
+  *
+  * @retval None
+  */
+#define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__)         ((__HANDLE__)->Instance->CR1 &= (~(__INTERRUPT__)))
+
+/** @brief  Check whether the specified I2C interrupt source is enabled or not.
+  * @param  __HANDLE__ specifies the I2C Handle.
+  * @param  __INTERRUPT__ specifies the I2C interrupt source to check.
+  *          This parameter can be one of the following values:
+  *            @arg @ref I2C_IT_ERRI  Errors interrupt enable
+  *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable
+  *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable
+  *            @arg @ref I2C_IT_NACKI NACK received interrupt enable
+  *            @arg @ref I2C_IT_ADDRI Address match interrupt enable
+  *            @arg @ref I2C_IT_RXI   RX interrupt enable
+  *            @arg @ref I2C_IT_TXI   TX interrupt enable
+  *
+  * @retval The new state of __INTERRUPT__ (SET or RESET).
+  */
+#define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__)      ((((__HANDLE__)->Instance->CR1 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)
+
+/** @brief  Check whether the specified I2C flag is set or not.
+  * @param  __HANDLE__ specifies the I2C Handle.
+  * @param  __FLAG__ specifies the flag to check.
+  *        This parameter can be one of the following values:
+  *            @arg @ref I2C_FLAG_TXE     Transmit data register empty
+  *            @arg @ref I2C_FLAG_TXIS    Transmit interrupt status
+  *            @arg @ref I2C_FLAG_RXNE    Receive data register not empty
+  *            @arg @ref I2C_FLAG_ADDR    Address matched (slave mode)
+  *            @arg @ref I2C_FLAG_AF      Acknowledge failure received flag
+  *            @arg @ref I2C_FLAG_STOPF   STOP detection flag
+  *            @arg @ref I2C_FLAG_TC      Transfer complete (master mode)
+  *            @arg @ref I2C_FLAG_TCR     Transfer complete reload
+  *            @arg @ref I2C_FLAG_BERR    Bus error
+  *            @arg @ref I2C_FLAG_ARLO    Arbitration lost
+  *            @arg @ref I2C_FLAG_OVR     Overrun/Underrun
+  *            @arg @ref I2C_FLAG_PECERR  PEC error in reception
+  *            @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag
+  *            @arg @ref I2C_FLAG_ALERT   SMBus alert
+  *            @arg @ref I2C_FLAG_BUSY    Bus busy
+  *            @arg @ref I2C_FLAG_DIR     Transfer direction (slave mode)
+  *
+  * @retval The new state of __FLAG__ (SET or RESET).
+  */
+#define I2C_FLAG_MASK  (0x0001FFFFU)
+#define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) (((((__HANDLE__)->Instance->ISR) & (__FLAG__)) == (__FLAG__)) ? SET : RESET)
+
+/** @brief  Clear the I2C pending flags which are cleared by writing 1 in a specific bit.
+  * @param  __HANDLE__ specifies the I2C Handle.
+  * @param  __FLAG__ specifies the flag to clear.
+  *          This parameter can be any combination of the following values:
+  *            @arg @ref I2C_FLAG_TXE     Transmit data register empty
+  *            @arg @ref I2C_FLAG_ADDR    Address matched (slave mode)
+  *            @arg @ref I2C_FLAG_AF      Acknowledge failure received flag
+  *            @arg @ref I2C_FLAG_STOPF   STOP detection flag
+  *            @arg @ref I2C_FLAG_BERR    Bus error
+  *            @arg @ref I2C_FLAG_ARLO    Arbitration lost
+  *            @arg @ref I2C_FLAG_OVR     Overrun/Underrun
+  *            @arg @ref I2C_FLAG_PECERR  PEC error in reception
+  *            @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag
+  *            @arg @ref I2C_FLAG_ALERT   SMBus alert
+  *
+  * @retval None
+  */
+#define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) (((__FLAG__) == I2C_FLAG_TXE) ? ((__HANDLE__)->Instance->ISR |= (__FLAG__)) \
+                                                                                 : ((__HANDLE__)->Instance->ICR = (__FLAG__)))
+
+/** @brief  Enable the specified I2C peripheral.
+  * @param  __HANDLE__ specifies the I2C Handle.
+  * @retval None
+  */
+#define __HAL_I2C_ENABLE(__HANDLE__)                            (SET_BIT((__HANDLE__)->Instance->CR1,  I2C_CR1_PE))
+
+/** @brief  Disable the specified I2C peripheral.
+  * @param  __HANDLE__ specifies the I2C Handle.
+  * @retval None
+  */
+#define __HAL_I2C_DISABLE(__HANDLE__)                           (CLEAR_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))
+
+/** @brief  Generate a Non-Acknowledge I2C peripheral in Slave mode.
+  * @param  __HANDLE__ specifies the I2C Handle.
+  * @retval None
+  */
+#define __HAL_I2C_GENERATE_NACK(__HANDLE__)                     (SET_BIT((__HANDLE__)->Instance->CR2, I2C_CR2_NACK))
+/**
+  * @}
+  */
+
+/* Include I2C HAL Extended module */
+#include "stm32g0xx_hal_i2c_ex.h"
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup I2C_Exported_Functions
+  * @{
+  */
+
+/** @addtogroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions
+  * @{
+  */
+/* Initialization and de-initialization functions******************************/
+HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c);
+HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c);
+
+/* Callbacks Register/UnRegister functions  ***********************************/
+#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
+HAL_StatusTypeDef HAL_I2C_RegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID, pI2C_CallbackTypeDef pCallback);
+HAL_StatusTypeDef HAL_I2C_UnRegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID);
+
+HAL_StatusTypeDef HAL_I2C_RegisterAddrCallback(I2C_HandleTypeDef *hi2c, pI2C_AddrCallbackTypeDef pCallback);
+HAL_StatusTypeDef HAL_I2C_UnRegisterAddrCallback(I2C_HandleTypeDef *hi2c);
+#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
+/**
+  * @}
+  */
+
+/** @addtogroup I2C_Exported_Functions_Group2 Input and Output operation functions
+  * @{
+  */
+/* IO operation functions  ****************************************************/
+/******* Blocking mode: Polling */
+HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout);
+
+/******* Non-Blocking mode: Interrupt */
+HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
+
+HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
+HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
+HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
+HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
+HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c);
+HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c);
+HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress);
+
+/******* Non-Blocking mode: DMA */
+HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
+HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
+
+HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
+HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
+HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
+HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
+/**
+  * @}
+  */
+
+/** @addtogroup I2C_IRQ_Handler_and_Callbacks IRQ Handler and Callbacks
+ * @{
+ */
+/******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */
+void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode);
+void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c);
+void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c);
+/**
+  * @}
+  */
+
+/** @addtogroup I2C_Exported_Functions_Group3 Peripheral State, Mode and Error functions
+  * @{
+  */
+/* Peripheral State, Mode and Error functions  *********************************/
+HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c);
+HAL_I2C_ModeTypeDef  HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c);
+uint32_t             HAL_I2C_GetError(I2C_HandleTypeDef *hi2c);
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/* Private constants ---------------------------------------------------------*/
+/** @defgroup I2C_Private_Constants I2C Private Constants
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/* Private macros ------------------------------------------------------------*/
+/** @defgroup I2C_Private_Macro I2C Private Macros
+  * @{
+  */
+
+#define IS_I2C_ADDRESSING_MODE(MODE)    (((MODE) == I2C_ADDRESSINGMODE_7BIT) || \
+                                         ((MODE) == I2C_ADDRESSINGMODE_10BIT))
+
+#define IS_I2C_DUAL_ADDRESS(ADDRESS)    (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \
+                                         ((ADDRESS) == I2C_DUALADDRESS_ENABLE))
+
+#define IS_I2C_OWN_ADDRESS2_MASK(MASK)  (((MASK) == I2C_OA2_NOMASK)  || \
+                                         ((MASK) == I2C_OA2_MASK01) || \
+                                         ((MASK) == I2C_OA2_MASK02) || \
+                                         ((MASK) == I2C_OA2_MASK03) || \
+                                         ((MASK) == I2C_OA2_MASK04) || \
+                                         ((MASK) == I2C_OA2_MASK05) || \
+                                         ((MASK) == I2C_OA2_MASK06) || \
+                                         ((MASK) == I2C_OA2_MASK07))
+
+#define IS_I2C_GENERAL_CALL(CALL)       (((CALL) == I2C_GENERALCALL_DISABLE) || \
+                                         ((CALL) == I2C_GENERALCALL_ENABLE))
+
+#define IS_I2C_NO_STRETCH(STRETCH)      (((STRETCH) == I2C_NOSTRETCH_DISABLE) || \
+                                         ((STRETCH) == I2C_NOSTRETCH_ENABLE))
+
+#define IS_I2C_MEMADD_SIZE(SIZE)        (((SIZE) == I2C_MEMADD_SIZE_8BIT) || \
+                                         ((SIZE) == I2C_MEMADD_SIZE_16BIT))
+
+#define IS_TRANSFER_MODE(MODE)          (((MODE) == I2C_RELOAD_MODE)   || \
+                                         ((MODE) == I2C_AUTOEND_MODE) || \
+                                         ((MODE) == I2C_SOFTEND_MODE))
+
+#define IS_TRANSFER_REQUEST(REQUEST)    (((REQUEST) == I2C_GENERATE_STOP)        || \
+                                         ((REQUEST) == I2C_GENERATE_START_READ)  || \
+                                         ((REQUEST) == I2C_GENERATE_START_WRITE) || \
+                                         ((REQUEST) == I2C_NO_STARTSTOP))
+
+#define IS_I2C_TRANSFER_OPTIONS_REQUEST(REQUEST)  (((REQUEST) == I2C_FIRST_FRAME)          || \
+                                                   ((REQUEST) == I2C_FIRST_AND_NEXT_FRAME) || \
+                                                   ((REQUEST) == I2C_NEXT_FRAME)           || \
+                                                   ((REQUEST) == I2C_FIRST_AND_LAST_FRAME) || \
+                                                   ((REQUEST) == I2C_LAST_FRAME)           || \
+                                                   ((REQUEST) == I2C_LAST_FRAME_NO_STOP)   || \
+                                                   IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST))
+
+#define IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_OTHER_FRAME)     || \
+                                                        ((REQUEST) == I2C_OTHER_AND_LAST_FRAME))
+
+#define I2C_RESET_CR2(__HANDLE__)                 ((__HANDLE__)->Instance->CR2 &= (uint32_t)~((uint32_t)(I2C_CR2_SADD | I2C_CR2_HEAD10R | I2C_CR2_NBYTES | I2C_CR2_RELOAD | I2C_CR2_RD_WRN)))
+
+#define I2C_GET_ADDR_MATCH(__HANDLE__)            ((uint16_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_ADDCODE) >> 16U))
+#define I2C_GET_DIR(__HANDLE__)                   ((uint8_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_DIR) >> 16U))
+#define I2C_GET_STOP_MODE(__HANDLE__)             ((__HANDLE__)->Instance->CR2 & I2C_CR2_AUTOEND)
+#define I2C_GET_OWN_ADDRESS1(__HANDLE__)          ((uint16_t)((__HANDLE__)->Instance->OAR1 & I2C_OAR1_OA1))
+#define I2C_GET_OWN_ADDRESS2(__HANDLE__)          ((uint16_t)((__HANDLE__)->Instance->OAR2 & I2C_OAR2_OA2))
+
+#define IS_I2C_OWN_ADDRESS1(ADDRESS1)             ((ADDRESS1) <= 0x000003FFU)
+#define IS_I2C_OWN_ADDRESS2(ADDRESS2)             ((ADDRESS2) <= (uint16_t)0x00FFU)
+
+#define I2C_MEM_ADD_MSB(__ADDRESS__)              ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0xFF00U))) >> 8U)))
+#define I2C_MEM_ADD_LSB(__ADDRESS__)              ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FFU))))
+
+#define I2C_GENERATE_START(__ADDMODE__,__ADDRESS__) (((__ADDMODE__) == I2C_ADDRESSINGMODE_7BIT) ? (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | (I2C_CR2_START) | (I2C_CR2_AUTOEND)) & (~I2C_CR2_RD_WRN)) : \
+                                                          (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | (I2C_CR2_ADD10) | (I2C_CR2_START)) & (~I2C_CR2_RD_WRN)))
+
+#define I2C_CHECK_FLAG(__ISR__, __FLAG__)         ((((__ISR__) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET)
+#define I2C_CHECK_IT_SOURCE(__CR1__, __IT__)      ((((__CR1__) & (__IT__)) == (__IT__)) ? SET : RESET)
+/**
+  * @}
+  */
+
+/* Private Functions ---------------------------------------------------------*/
+/** @defgroup I2C_Private_Functions I2C Private Functions
+  * @{
+  */
+/* Private functions are defined in stm32g0xx_hal_i2c.c file */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* STM32G0xx_HAL_I2C_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_i2c_ex.h

@@ -0,0 +1,166 @@
+/**
+  ******************************************************************************
+  * @file    stm32g0xx_hal_i2c_ex.h
+  * @author  MCD Application Team
+  * @brief   Header file of I2C HAL Extended module.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2018 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef STM32G0xx_HAL_I2C_EX_H
+#define STM32G0xx_HAL_I2C_EX_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32g0xx_hal_def.h"
+
+/** @addtogroup STM32G0xx_HAL_Driver
+  * @{
+  */
+
+/** @addtogroup I2CEx
+  * @{
+  */
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/** @defgroup I2CEx_Exported_Constants I2C Extended Exported Constants
+  * @{
+  */
+
+/** @defgroup I2CEx_Analog_Filter I2C Extended Analog Filter
+  * @{
+  */
+#define I2C_ANALOGFILTER_ENABLE         0x00000000U
+#define I2C_ANALOGFILTER_DISABLE        I2C_CR1_ANFOFF
+/**
+  * @}
+  */
+
+/** @defgroup I2CEx_FastModePlus I2C Extended Fast Mode Plus
+  * @{
+  */
+#define I2C_FMP_NOT_SUPPORTED           0xAAAA0000U                                     /*!< Fast Mode Plus not supported       */
+#define I2C_FASTMODEPLUS_PA9            SYSCFG_CFGR1_I2C_PA9_FMP                        /*!< Enable Fast Mode Plus on PA9       */
+#define I2C_FASTMODEPLUS_PA10           SYSCFG_CFGR1_I2C_PA10_FMP                       /*!< Enable Fast Mode Plus on PA10      */
+#define I2C_FASTMODEPLUS_PB6            SYSCFG_CFGR1_I2C_PB6_FMP                        /*!< Enable Fast Mode Plus on PB6       */
+#define I2C_FASTMODEPLUS_PB7            SYSCFG_CFGR1_I2C_PB7_FMP                        /*!< Enable Fast Mode Plus on PB7       */
+#define I2C_FASTMODEPLUS_PB8            SYSCFG_CFGR1_I2C_PB8_FMP                        /*!< Enable Fast Mode Plus on PB8       */
+#define I2C_FASTMODEPLUS_PB9            SYSCFG_CFGR1_I2C_PB9_FMP                        /*!< Enable Fast Mode Plus on PB9       */
+#define I2C_FASTMODEPLUS_I2C1           SYSCFG_CFGR1_I2C1_FMP                           /*!< Enable Fast Mode Plus on I2C1 pins */
+#define I2C_FASTMODEPLUS_I2C2           SYSCFG_CFGR1_I2C2_FMP                           /*!< Enable Fast Mode Plus on I2C2 pins */
+#if defined(SYSCFG_CFGR1_I2C3_FMP)
+#define I2C_FASTMODEPLUS_I2C3           SYSCFG_CFGR1_I2C3_FMP                           /*!< Enable Fast Mode Plus on I2C3 pins */
+#else
+#define I2C_FASTMODEPLUS_I2C3           (uint32_t)(0x00000400U | I2C_FMP_NOT_SUPPORTED) /*!< Fast Mode Plus I2C3 not supported  */
+#endif
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions --------------------------------------------------------*/
+
+/** @addtogroup I2CEx_Exported_Functions I2C Extended Exported Functions
+  * @{
+  */
+
+/** @addtogroup I2CEx_Exported_Functions_Group1 Extended features functions
+  * @brief    Extended features functions
+  * @{
+  */
+
+/* Peripheral Control functions  ************************************************/
+HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter);
+HAL_StatusTypeDef HAL_I2CEx_ConfigDigitalFilter(I2C_HandleTypeDef *hi2c, uint32_t DigitalFilter);
+HAL_StatusTypeDef HAL_I2CEx_EnableWakeUp(I2C_HandleTypeDef *hi2c);
+HAL_StatusTypeDef HAL_I2CEx_DisableWakeUp(I2C_HandleTypeDef *hi2c);
+void HAL_I2CEx_EnableFastModePlus(uint32_t ConfigFastModePlus);
+void HAL_I2CEx_DisableFastModePlus(uint32_t ConfigFastModePlus);
+
+/* Private constants ---------------------------------------------------------*/
+/** @defgroup I2CEx_Private_Constants I2C Extended Private Constants
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/* Private macros ------------------------------------------------------------*/
+/** @defgroup I2CEx_Private_Macro I2C Extended Private Macros
+  * @{
+  */
+#define IS_I2C_ANALOG_FILTER(FILTER)    (((FILTER) == I2C_ANALOGFILTER_ENABLE) || \
+                                          ((FILTER) == I2C_ANALOGFILTER_DISABLE))
+
+#define IS_I2C_DIGITAL_FILTER(FILTER)   ((FILTER) <= 0x0000000FU)
+
+#define IS_I2C_FASTMODEPLUS(__CONFIG__) ((((__CONFIG__) & I2C_FMP_NOT_SUPPORTED) != I2C_FMP_NOT_SUPPORTED) && \
+                                         ((((__CONFIG__) & (I2C_FASTMODEPLUS_PA9))  == I2C_FASTMODEPLUS_PA9)     || \
+                                          (((__CONFIG__) & (I2C_FASTMODEPLUS_PA10)) == I2C_FASTMODEPLUS_PA10)    || \
+                                          (((__CONFIG__) & (I2C_FASTMODEPLUS_PB6))  == I2C_FASTMODEPLUS_PB6)     || \
+                                          (((__CONFIG__) & (I2C_FASTMODEPLUS_PB7))  == I2C_FASTMODEPLUS_PB7)     || \
+                                          (((__CONFIG__) & (I2C_FASTMODEPLUS_PB8))  == I2C_FASTMODEPLUS_PB8)     || \
+                                          (((__CONFIG__) & (I2C_FASTMODEPLUS_PB9))  == I2C_FASTMODEPLUS_PB9)     || \
+                                          (((__CONFIG__) & (I2C_FASTMODEPLUS_I2C1)) == I2C_FASTMODEPLUS_I2C1)    || \
+                                          (((__CONFIG__) & (I2C_FASTMODEPLUS_I2C2)) == I2C_FASTMODEPLUS_I2C2)    || \
+                                          (((__CONFIG__) & (I2C_FASTMODEPLUS_I2C3)) == I2C_FASTMODEPLUS_I2C3)))
+
+
+
+/**
+  * @}
+  */
+
+/* Private Functions ---------------------------------------------------------*/
+/** @defgroup I2CEx_Private_Functions I2C Extended Private Functions
+  * @{
+  */
+/* Private functions are defined in stm32g0xx_hal_i2c_ex.c file */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* STM32G0xx_HAL_I2C_EX_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_i2c_ex.c

@@ -0,0 +1,335 @@
+/**
+  ******************************************************************************
+  * @file    stm32g0xx_hal_i2c_ex.c
+  * @author  MCD Application Team
+  * @brief   I2C Extended HAL module driver.
+  *          This file provides firmware functions to manage the following
+  *          functionalities of I2C Extended peripheral:
+  *           + Extended features functions
+  *
+  @verbatim
+  ==============================================================================
+               ##### I2C peripheral Extended features  #####
+  ==============================================================================
+
+  [..] Comparing to other previous devices, the I2C interface for STM32G0xx
+       devices contains the following additional features
+
+       (+) Possibility to disable or enable Analog Noise Filter
+       (+) Use of a configured Digital Noise Filter
+       (+) Disable or enable wakeup from Stop mode(s)
+       (+) Disable or enable Fast Mode Plus
+
+                     ##### How to use this driver #####
+  ==============================================================================
+  [..] This driver provides functions to configure Noise Filter and Wake Up Feature
+    (#) Configure I2C Analog noise filter using the function HAL_I2CEx_ConfigAnalogFilter()
+    (#) Configure I2C Digital noise filter using the function HAL_I2CEx_ConfigDigitalFilter()
+    (#) Configure the enable or disable of I2C Wake Up Mode using the functions :
+          (++) HAL_I2CEx_EnableWakeUp()
+          (++) HAL_I2CEx_DisableWakeUp()
+    (#) Configure the enable or disable of fast mode plus driving capability using the functions :
+          (++) HAL_I2CEx_EnableFastModePlus()
+          (++) HAL_I2CEx_DisableFastModePlus()
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2018 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32g0xx_hal.h"
+
+/** @addtogroup STM32G0xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup I2CEx I2CEx
+  * @brief I2C Extended HAL module driver
+  * @{
+  */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup I2CEx_Exported_Functions I2C Extended Exported Functions
+  * @{
+  */
+
+/** @defgroup I2CEx_Exported_Functions_Group1 Extended features functions
+  * @brief    Extended features functions
+ *
+@verbatim
+ ===============================================================================
+                      ##### Extended features functions #####
+ ===============================================================================
+    [..] This section provides functions allowing to:
+      (+) Configure Noise Filters
+      (+) Configure Wake Up Feature
+      (+) Configure Fast Mode Plus
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Configure I2C Analog noise filter.
+  * @param  hi2c Pointer to a I2C_HandleTypeDef structure that contains
+  *                the configuration information for the specified I2Cx peripheral.
+  * @param  AnalogFilter New state of the Analog filter.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter)
+{
+  /* Check the parameters */
+  assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
+  assert_param(IS_I2C_ANALOG_FILTER(AnalogFilter));
+
+  if (hi2c->State == HAL_I2C_STATE_READY)
+  {
+    /* Process Locked */
+    __HAL_LOCK(hi2c);
+
+    hi2c->State = HAL_I2C_STATE_BUSY;
+
+    /* Disable the selected I2C peripheral */
+    __HAL_I2C_DISABLE(hi2c);
+
+    /* Reset I2Cx ANOFF bit */
+    hi2c->Instance->CR1 &= ~(I2C_CR1_ANFOFF);
+
+    /* Set analog filter bit*/
+    hi2c->Instance->CR1 |= AnalogFilter;
+
+    __HAL_I2C_ENABLE(hi2c);
+
+    hi2c->State = HAL_I2C_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hi2c);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief  Configure I2C Digital noise filter.
+  * @param  hi2c Pointer to a I2C_HandleTypeDef structure that contains
+  *                the configuration information for the specified I2Cx peripheral.
+  * @param  DigitalFilter Coefficient of digital noise filter between Min_Data=0x00 and Max_Data=0x0F.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_I2CEx_ConfigDigitalFilter(I2C_HandleTypeDef *hi2c, uint32_t DigitalFilter)
+{
+  uint32_t tmpreg;
+
+  /* Check the parameters */
+  assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
+  assert_param(IS_I2C_DIGITAL_FILTER(DigitalFilter));
+
+  if (hi2c->State == HAL_I2C_STATE_READY)
+  {
+    /* Process Locked */
+    __HAL_LOCK(hi2c);
+
+    hi2c->State = HAL_I2C_STATE_BUSY;
+
+    /* Disable the selected I2C peripheral */
+    __HAL_I2C_DISABLE(hi2c);
+
+    /* Get the old register value */
+    tmpreg = hi2c->Instance->CR1;
+
+    /* Reset I2Cx DNF bits [11:8] */
+    tmpreg &= ~(I2C_CR1_DNF);
+
+    /* Set I2Cx DNF coefficient */
+    tmpreg |= DigitalFilter << 8U;
+
+    /* Store the new register value */
+    hi2c->Instance->CR1 = tmpreg;
+
+    __HAL_I2C_ENABLE(hi2c);
+
+    hi2c->State = HAL_I2C_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hi2c);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief  Enable I2C wakeup from Stop mode(s).
+  * @param  hi2c Pointer to a I2C_HandleTypeDef structure that contains
+  *                the configuration information for the specified I2Cx peripheral.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_I2CEx_EnableWakeUp(I2C_HandleTypeDef *hi2c)
+{
+  /* Check the parameters */
+  assert_param(IS_I2C_WAKEUP_FROMSTOP_INSTANCE(hi2c->Instance));
+
+  if (hi2c->State == HAL_I2C_STATE_READY)
+  {
+    /* Process Locked */
+    __HAL_LOCK(hi2c);
+
+    hi2c->State = HAL_I2C_STATE_BUSY;
+
+    /* Disable the selected I2C peripheral */
+    __HAL_I2C_DISABLE(hi2c);
+
+    /* Enable wakeup from stop mode */
+    hi2c->Instance->CR1 |= I2C_CR1_WUPEN;
+
+    __HAL_I2C_ENABLE(hi2c);
+
+    hi2c->State = HAL_I2C_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hi2c);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief  Disable I2C wakeup from Stop mode(s).
+  * @param  hi2c Pointer to a I2C_HandleTypeDef structure that contains
+  *                the configuration information for the specified I2Cx peripheral.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_I2CEx_DisableWakeUp(I2C_HandleTypeDef *hi2c)
+{
+  /* Check the parameters */
+  assert_param(IS_I2C_WAKEUP_FROMSTOP_INSTANCE(hi2c->Instance));
+
+  if (hi2c->State == HAL_I2C_STATE_READY)
+  {
+    /* Process Locked */
+    __HAL_LOCK(hi2c);
+
+    hi2c->State = HAL_I2C_STATE_BUSY;
+
+    /* Disable the selected I2C peripheral */
+    __HAL_I2C_DISABLE(hi2c);
+
+    /* Enable wakeup from stop mode */
+    hi2c->Instance->CR1 &= ~(I2C_CR1_WUPEN);
+
+    __HAL_I2C_ENABLE(hi2c);
+
+    hi2c->State = HAL_I2C_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hi2c);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_BUSY;
+  }
+}
+
+/**
+  * @brief Enable the I2C fast mode plus driving capability.
+  * @param ConfigFastModePlus Selects the pin.
+  *   This parameter can be one of the @ref I2CEx_FastModePlus values
+  * @note  For I2C1, fast mode plus driving capability can be enabled on all selected
+  *        I2C1 pins using I2C_FASTMODEPLUS_I2C1 parameter or independently
+  *        on each one of the following pins PB6, PB7, PB8 and PB9.
+  * @note  For remaining I2C1 pins (PA14, PA15...) fast mode plus driving capability
+  *        can be enabled only by using I2C_FASTMODEPLUS_I2C1 parameter.
+  * @note  For all I2C2 pins fast mode plus driving capability can be enabled
+  *        only by using I2C_FASTMODEPLUS_I2C2 parameter.
+  * @note  For all I2C3 pins fast mode plus driving capability can be enabled
+  *        only by using I2C_FASTMODEPLUS_I2C3 parameter.
+  * @retval None
+  */
+void HAL_I2CEx_EnableFastModePlus(uint32_t ConfigFastModePlus)
+{
+  /* Check the parameter */
+  assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));
+
+  /* Enable SYSCFG clock */
+  __HAL_RCC_SYSCFG_CLK_ENABLE();
+
+  /* Enable fast mode plus driving capability for selected pin */
+  SET_BIT(SYSCFG->CFGR1, (uint32_t)ConfigFastModePlus);
+}
+
+/**
+  * @brief Disable the I2C fast mode plus driving capability.
+  * @param ConfigFastModePlus Selects the pin.
+  *   This parameter can be one of the @ref I2CEx_FastModePlus values
+  * @note  For I2C1, fast mode plus driving capability can be disabled on all selected
+  *        I2C1 pins using I2C_FASTMODEPLUS_I2C1 parameter or independently
+  *        on each one of the following pins PB6, PB7, PB8 and PB9.
+  * @note  For remaining I2C1 pins (PA14, PA15...) fast mode plus driving capability
+  *        can be disabled only by using I2C_FASTMODEPLUS_I2C1 parameter.
+  * @note  For all I2C2 pins fast mode plus driving capability can be disabled
+  *        only by using I2C_FASTMODEPLUS_I2C2 parameter.
+  * @note  For all I2C3 pins fast mode plus driving capability can be disabled
+  *        only by using I2C_FASTMODEPLUS_I2C3 parameter.
+  * @retval None
+  */
+void HAL_I2CEx_DisableFastModePlus(uint32_t ConfigFastModePlus)
+{
+  /* Check the parameter */
+  assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));
+
+  /* Enable SYSCFG clock */
+  __HAL_RCC_SYSCFG_CLK_ENABLE();
+
+  /* Disable fast mode plus driving capability for selected pin */
+  CLEAR_BIT(SYSCFG->CFGR1, (uint32_t)ConfigFastModePlus);
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_I2C_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

Makefile

@@ -12,28 +12,21 @@ Core/Src/stm32g0xx_hal_msp.c \
 Core/Src/system_stm32g0xx.c \
 Core/Src/syscalls.c \
 Core/Src/sysmem.c \
-Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_rcc.c \
 Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal.c \
 Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_cortex.c \
-Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_rcc_ex.c \
+Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_gpio.c \
+Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_dma.c \
+Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_i2c.c \
+Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_i2c_ex.c \
 Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_pwr.c \
 Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_pwr_ex.c \
-Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_iwdg.c \
+Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_rcc.c \
+Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_rcc_ex.c \
 Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_uart_ex.c \
-Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_uart.c \
+Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_uart.c
-Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_gpio.c
-# Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_tim.c \
-# Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_tim_ex.c \
-# Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_ll_rcc.c \
-# Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_flash.c \
-# Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_flash_ex.c \
-# Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_dma.c \
-# Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_dma_ex.c \
-
-# Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_exti.c
 
 ASM_SOURCES = \
-Core/Startup/startup_stm32g071rbtx.s
+Core/Startup/startup_stm32g031y8yx.s
 
 PREFIX = arm-none-eabi-
 CC = $(PREFIX)gcc
@@ -41,21 +34,13 @@ AS = $(PREFIX)gcc -x assembler-with-cpp
 CP = $(PREFIX)objcopy
 SZ = $(PREFIX)size
 
-HEX = $(CP) -O ihex
-BIN = $(CP) -O binary -S
- 
 CPU = -mcpu=cortex-m0plus
 MCU = $(CPU) -mthumb $(FPU) $(FLOAT-ABI)
 
-AS_DEFS = 
-
 C_DEFS = \
 -DUSE_HAL_DRIVER \
 -DSTM32G071xx
 
-
-AS_INCLUDES =
-
 C_INCLUDES = \
 -ICore/Inc \
 -IDrivers/STM32G0xx_HAL_Driver/Inc \
@@ -73,13 +58,13 @@ endif
 
 CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)"
 
-LDSCRIPT = STM32G071RBTX_FLASH.ld
+LDSCRIPT = STM32G031Y8YX_Flash.ld
 
 LIBS = -lc -lm -lnosys
 LIBDIR =
 LDFLAGS = $(MCU) -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref -Wl,--gc-sections
 
-all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).hex $(BUILD_DIR)/$(TARGET).bin
+all: $(BUILD_DIR)/$(TARGET).elf
 
 OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
 vpath %.c $(sort $(dir $(C_SOURCES)))
@@ -97,16 +82,10 @@ $(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) Makefile
 	$(CC) $(OBJECTS) $(LDFLAGS) -o $@
 	$(SZ) $@
 
-$(BUILD_DIR)/%.hex: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
-	$(HEX) $< $@
-
-$(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
-	$(BIN) $< $@
-
 $(BUILD_DIR):
 	mkdir $@
 
 clean:
-	-rm -fR $(BUILD_DIR)
+	-rm -rf $(BUILD_DIR)
 
 -include $(wildcard $(BUILD_DIR)/*.d)

STM32G031Y8YX_Flash.ld

@@ -2,9 +2,9 @@
  ******************************************************************************
  * @file      LinkerScript.ld
  * @author    Auto-generated by STM32CubeIDE
- *  Abstract    : Linker script for NUCLEO-G071RB Board embedding STM32G071RBTx Device from stm32g0 series
+ * @brief     Linker script for STM32G031Y8Yx Device from STM32G0 series
- *                      128Kbytes FLASH
+ *                      64Kbytes FLASH
- *                      36Kbytes RAM
+ *                      8Kbytes RAM
  *
  *            Set heap size, stack size and stack location according
  *            to application requirements.
@@ -36,8 +36,8 @@ _Min_Stack_Size = 0x400 ;	/* required amount of stack */
 /* Memories definition */
 MEMORY
 {
-  RAM    (xrw)    : ORIGIN = 0x20000000,   LENGTH = 36K
+  RAM    (xrw)    : ORIGIN = 0x20000000,   LENGTH = 8K
-  FLASH    (rx)    : ORIGIN = 0x8000000,   LENGTH = 128K
+  FLASH    (rx)    : ORIGIN = 0x8000000,   LENGTH = 64K
 }
 
 /* Sections */