#include "bsp_serial.h" #ifdef BSP_USING_UART1 Serial serial1; void USART1_IRQHandler( void ) { _uartIsr( &serial1 ); } #endif #ifdef BSP_USING_UART2 Serial serial2; //void USART2_IRQHandler(void) //{ // _uartIsr(&serial2); // } #endif #ifdef BSP_USING_UART3 Serial serial3; void USART3_IRQHandler( void ) { _uartIsr( &serial3 ); } #endif #ifdef BSP_USING_UART4 Serial serial4; void UART4_IRQHandler( void ) { _uartIsr( &serial4 ); } #endif #ifdef BSP_USING_UART5 Serial serial5; void UART5_IRQHandler( void ) { _uartIsr( &serial5 ); } #endif /* static int _serialInit(Serial *serial, UART_HandleTypeDef *huart) { rkfifo_init(&serial->_rxFifo, serial->_pRxBuff, sizeof(serial->_pRxBuff), 1); rkfifo_init(&serial->_txFifo, serial->_pTxBuff, sizeof(serial->_pTxBuff), 1); #ifdef BSP_UART_USING_DMA serial->_dmarx_remaining_cnt = sizeof(serial->_pRxBuff); if (HAL_UART_Receive_DMA(serial->huart, serial->_rxFifo.data, sizeof(serial->_rxFifo)) != HAL_OK) { Error_Handler(); } CLEAR_BIT(serial->huart->Instance->CR3, USART_CR3_EIE); __HAL_UART_ENABLE_IT(serial->huart, UART_IT_IDLE); #endif serial->huart = huart; __HAL_UART_ENABLE_IT(serial->huart, UART_IT_RXNE); return 0; } static int _serialDeinit(Serial *serial) { assert_param(serial != 0); __HAL_UART_DISABLE_IT(serial->huart, UART_IT_RXNE); return 0; } */ /** * @brief 串口发送数据,非阻塞式发送 * * @param serial 串口对象 * @param pTxData 发送数据指针 * @param txLen 要发送长度 * @return uint32_t 发送成功字节数 */ uint32_t bspSerialWrite( Serial *serial, const uint8_t *pTxData, uint32_t txLen ) { uint32_t ret = 0; ret = rkfifo_in( &serial->_txFifo, pTxData, txLen ); if ( ret ) { __HAL_UART_ENABLE_IT( serial->huart, UART_IT_TXE ); } return ret; } int bspSerialReadReady( Serial *serial, uint32_t timeOut ) { int ret = 0; return ret; } int bspSerialWriteDone( Serial *serial, uint32_t timeOut ) { int ret = 0; return ret; } /** * @brief 串口读取数据 * * @param serial 串口对象 * @param pRxData 读取数据指针 * @param rxLen 要读取长度 * @return uint32_t 读取成功字节数 */ uint32_t bspSerialRead( Serial *serial, uint8_t *pRxData, uint32_t rxLen ) { uint32_t rnum = rkfifo_out( &serial->_rxFifo, pRxData, rxLen ); return rnum; } static inline int _stm32_getc( Serial *serial ) { int ch = -1; UART_HandleTypeDef *handle = serial->huart; if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_RXNE ) != RESET ) { ch = handle->Instance->DR & 0xff; } return ch; } static inline int _stm32_putc( Serial *serial, uint8_t ch ) { UART_HandleTypeDef *handle = serial->huart; while ( __HAL_UART_GET_FLAG( handle, UART_FLAG_TC ) == RESET ) ; serial->huart->Instance->DR = ch; return 0; } static int _serialRxneIsrCallback( Serial *serial ) { int ret = 0; int ch = _stm32_getc( serial ); if ( ch != -1 && serial ) { uint8_t c = ch & 0xff; ret = rkfifo_in( &serial->_rxFifo, &c, 1 ); } return ret; } static int _serialTxeIsrCallback( Serial *serial ) { int ret = 0; uint8_t c; if ( rkfifo_out( &serial->_txFifo, &c, 1 ) ) { _stm32_putc( serial, c ); ret = 1; } return ret; } static int _serialTcIsrCallback( Serial *serial ) { int ret = 0; return ret; } #ifdef BSP_UART_USING_DMA static void _serialDmaRecvIsr( Serial *serial ) { } #endif void _uartIsr( Serial *serial ) { UART_HandleTypeDef *handle = serial->huart; if ( ( __HAL_UART_GET_FLAG( handle, UART_FLAG_RXNE ) != RESET ) && ( __HAL_UART_GET_IT_SOURCE( handle, UART_IT_RXNE ) != RESET ) ) { _serialRxneIsrCallback( serial ); __HAL_UART_CLEAR_FLAG( handle, UART_FLAG_RXNE ); } else if ( ( __HAL_UART_GET_FLAG( handle, UART_FLAG_TXE ) != RESET ) && ( __HAL_UART_GET_IT_SOURCE( handle, UART_IT_TXE ) ) != RESET ) { int ret = _serialTxeIsrCallback( serial ); if ( ret == 0 ) { __HAL_UART_DISABLE_IT( serial->huart, UART_IT_TXE ); __HAL_UART_ENABLE_IT( serial->huart, UART_IT_TC ); } __HAL_UART_CLEAR_FLAG( handle, UART_IT_TXE ); } else if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_TC ) && ( __HAL_UART_GET_IT_SOURCE( handle, UART_IT_TC ) != RESET ) ) { _serialTcIsrCallback( serial ); __HAL_UART_CLEAR_FLAG( handle, UART_IT_TC ); __HAL_UART_DISABLE_IT( handle, UART_IT_TC ); } else { if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_ORE ) != RESET ) { __HAL_UART_CLEAR_OREFLAG( handle ); } if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_NE ) != RESET ) { __HAL_UART_CLEAR_NEFLAG( handle ); } if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_FE ) != RESET ) { __HAL_UART_CLEAR_FEFLAG( handle ); } if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_PE ) != RESET ) { __HAL_UART_CLEAR_PEFLAG( handle ); } if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_IDLE ) != RESET ) { __HAL_UART_CLEAR_IDLEFLAG( handle ); } if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_CTS ) != RESET ) { __HAL_UART_CLEAR_FLAG( handle, UART_FLAG_CTS ); } if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_TXE ) != RESET ) { __HAL_UART_CLEAR_FLAG( handle, UART_FLAG_TXE ); } if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_TC ) != RESET ) { __HAL_UART_CLEAR_FLAG( handle, UART_FLAG_TC ); } if ( __HAL_UART_GET_FLAG( handle, UART_FLAG_RXNE ) != RESET ) { __HAL_UART_CLEAR_FLAG( handle, UART_FLAG_RXNE ); } } } void bspSerialInit( void ) { #ifdef BSP_USING_UART1 extern UART_HandleTypeDef huart1; _serialInit( &serial1, &huart1 ); #endif #ifdef BSP_USING_UART2 extern UART_HandleTypeDef huart2; _serialInit( &serial2, &huart2 ); #endif #ifdef BSP_USING_UART3 extern UART_HandleTypeDef huart3; _serialInit( &serial3, &huart3 ); #endif #ifdef BSP_USING_UART4 extern UART_HandleTypeDef huart4; _serialInit( &serial4, &huart4 ); #endif #ifdef BSP_USING_UART5 extern UART_HandleTypeDef huart5; _serialInit( &serial5, &huart5 ); #endif }