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I2c scanning example

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This commit is contained in:
Thomas Klaehn
2021-07-05 15:09:52 +02:00
parent a22139568c
commit cffedfd6ba
8 changed files with 7987 additions and 48 deletions
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5
.vscode/launch.json vendored
View File

@@ -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}"
},

4
Core/Inc/stm32g0xx_hal_conf.h
View File

@@ -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 */

103
Core/Src/main.c
View File

@@ -5,13 +5,14 @@
#include "main.h"
IWDG_HandleTypeDef hiwdg;
UART_HandleTypeDef huart2;
I2C_HandleTypeDef hi2c1;
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)
@@ -28,33 +29,24 @@ 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) {
if (j < 100) {
j += 10;
printf("\r\nStarting I2C Scanning:\r\n");
for(uint8_t i = 1; i < 128; i++) {
uint8_t ret = HAL_I2C_IsDeviceReady(&hi2c1, (uint16_t)(i<<1), 3, 5);
if (ret != HAL_OK) { /* No ACK Received At That Address */
printf(" - ");
} else if(ret == HAL_OK) {
printf("0x%X", i);
}
else if (j < 200) {
j += 20;
}
else if (j < 400) {
j += 40;
}
if (j > 800) {
j = 800;
}
printf("%u: Hello World\r\n", i++);
HAL_GPIO_TogglePin(LED_GREEN_GPIO_Port, LED_GREEN_Pin);
HAL_Delay(j);
HAL_IWDG_Refresh(&hiwdg);
}
printf("\r\nDone! \r\n\r\n");
while(1) {};
}
void SystemClock_Config(void)
@@ -89,24 +81,13 @@ 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 +106,52 @@ 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 +175,3 @@ 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 */

27
Core/Src/stm32g0xx_hal_msp.c
View File

@@ -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);
}
}

782
Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_i2c.h Normal file
View File

@@ -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****/

166
Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_i2c_ex.h Normal file
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@@ -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****/

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/**
******************************************************************************
* @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****/