HAL_SPI_Receive_DMA_INIT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size) { hspi->State = HAL_SPI_STATE_BUSY_RX; hspi->RxXferSize = Size;/*Init field not used in handle to zero */ hspi->RxISR = NULL; /* Set the SPI Rx DMA transfer complete callback */ hspi->...
hspi->State = HAL_SPI_STATE_BUSY_TX_RX; hspi->ErrorCode = HAL_SPI_ERROR_NONE; hspi->pRxBuffPtr = pRxData; hspi->RxXferCount = Size; hspi->RxXferSize = Size; hspi->pTxBuffPtr = pTxData; hspi->TxXferCount = Size; hspi->TxXferSize = Size; /* Reset CRC Calculation */ ...
< SPI data register, Address offset: 0x0C */ __IO uint32_t CRCPR; /*!< SPI CRC polynomial register (not used in I2S mode), Address offset: 0x10 */ __IO uint32_t RXCRCR; /*!< SPI RX CRC register (not used in I2S mode), Address offset: 0x14 */ __IO uint32_t TXCRCR...
__IOuint32_tcounter =0;uint32_ttmp1 =0, tmp2 =0;/* Process locked */__HAL_LOCK(hadc);/* Check if a regular conversion is ongoing */if(hadc->State == HAL_ADC_STATE_BUSY_REG) {/* Change ADC state */hadc->State = HAL_ADC_STATE_BUSY_INJ_REG; }else{/* Change ADC state...
return HAL_BUSY; } /* Set state and reset error code */ hi2s->State = HAL_I2S_STATE_BUSY_TX; hi2s->ErrorCode = HAL_I2S_ERROR_NONE; hi2s->pTxBuffPtr = pData0; tmpreg_cfgr = hi2s->Instance->I2SCFGR & (SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN); ...
HAL_USART_STATE_BUSY_RX;/* Init tickstart for timeout management */tickstart=HAL_GetTick();husart->RxXferSize=Size;husart->RxXferCount=Size;/* Check the remain data to be received */while(husart->RxXferCount>0U){husart->RxXferCount--;if(husart->Init.WordLength==USART_WORDLENGTH_...
RX和TX引脚交换。MSB位先发送。外接485的PHY芯片时，硬件支持收发切换，无需用户手动控制DE引脚。相比第...
SPI可以全双工传输数据，SPI进行数据传输有主机和从机，主机有片选信号，时钟，数据发送，数据接收。从机...
3.在遇到超时错误时,没有恢复huart->RxState状态。 这样子会出现什么问题呢? 1.串口中断进不去,主机发送消息,从机无回应 2.轮询模式下,打开串口,其会不断给电脑串口发信息,直到几千几万条后溢出。 (也有可能是我没理解到位,如果知道原因的大佬,可以在评论区给点意见) ...
当然,这个UART_Receive_IT接收中断实现方式又可能存在不同。像F0、F1...就是直接调用这个接收中断函数来进一步处理。 像L0、G0...是通过执行指针函数RxISR来进一步处理。G0的接收中断处理为:huart->RxISR(huart); 3-2: 初始化回调:以 HAL_SPI_Init(SPI_HandleTypeDef *hspi)函数为例: ...