stm32g0xx/Core/Src/stm32g0xx_hal_msp.c

#include "main.h"

void HAL_MspInit(void)
{
    __HAL_RCC_SYSCFG_CLK_ENABLE();
    __HAL_RCC_PWR_CLK_ENABLE();

    HAL_SYSCFG_StrobeDBattpinsConfig(SYSCFG_CFGR1_UCPD1_STROBE | SYSCFG_CFGR1_UCPD2_STROBE);
}

void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    if(huart->Instance == USART2) {
        __HAL_RCC_USART2_CLK_ENABLE();

        __HAL_RCC_GPIOA_CLK_ENABLE();
        GPIO_InitStruct.Pin = USART2_TX_Pin | USART2_RX_Pin;
        GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
        GPIO_InitStruct.Pull = GPIO_PULLUP;
        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
        GPIO_InitStruct.Alternate = GPIO_AF1_USART2;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
    }
}

void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
{
    if(huart->Instance == USART2) {
        __HAL_RCC_USART2_CLK_DISABLE();

        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);
    }
}