贴一段代码，stm32cube工具

只看该作者 · 2015-9-5 22:18

unsigned short SPI_Send_2_BYTE(unsigned short i, unsigned char CS)
{
static unsigned int c = 0;
  __IO static unsigned short Temp;
static HAL_StatusTypeDef HAL_Status;
  /*!< Select the FLASH: Chip Select low */
  HAL_GPIO_WritePin(GPIOD, CS, GPIO_PIN_RESET);
  /*!< Send byte through the SPI1 peripheral */
  HAL_Status = HAL_SPI_TransmitReceive(&hspi1, (unsigned char*)&i,(unsigned char*)&Temp, 1, 1000);

HAL_Status = HAL_Status;
  Debug[(c++)%100] = Temp;

  /*!< Deselect the FLASH: Chip Select high */
  HAL_GPIO_WritePin(sFLASH_CS_GPIO_PORT, CS, GPIO_PIN_SET);

  /*!< Return the byte read from the SPI bus */
  return Temp;
}

这是spi部分。调用  HAL_Status = HAL_SPI_TransmitReceive(&hspi1, (unsigned char*)&i,(unsigned char*)&Temp, 1, 1000);
总是返回timeout，各位大大来帮忙看看。