HAL库笔记（重要库函数）

引脚初始化
void HAL_GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_Init);
重置引脚
void HAL_GPIO_DeInit(GPIO_TypeDef *GPIOx, uint32_t GPIO_Pin);
读取电平状态
GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin);
设置引脚状态
void HAL_GPIO_WritePin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin, GPIO_PinState
PinState);
转换引脚状态
void HAL_GPIO_TogglePin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin);
锁定引脚状态
HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin);
发送数据
HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData,
uint16_t Size, uint32_t Timeout);
接收数据
HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData,
uint16_t Size, uint32_t Timeout);
发送中断
HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *
pData, uint16_t Size);
接收中断
HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData
, uint16_t Size);
使用DMA发送
HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *
pData, uint16_t Size);
使用DMA接收
HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *
pData, uint16_t Size);
DMA暂停
HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart);
DMA恢复
HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart);
DMA停止
HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart);
printf 重定向
int fputc(int ch, FILE *f){
uint8_t temp[1] = {ch};
HAL_UART_Transmit(&huart1, temp, 1, 2);//第一个形参需要根据配置修改
return ch;
}