Configuring SPI HAL driver to control L6482H

Posted on May 14, 2015 at 07:49

Hello,

I need a right SPI configuration and Send_Receive_byte() funtion for using with STM32F4, STM32CubeMX 4.7.0 and HAL drivers... Does anyone have it?

I have a project running fine with STM32F4xx StdPeriph_Driver V1.2.0 to connect my STM32F4 and my L6482H chips.

Now, I am trying to migrate my code, for using STM32 CubeMX v4.7.0 and HAL drivers. See below:

void

HAL_SPI_MspInit

(SPI_HandleTypeDef* hspi)

{

  GPIO_InitTypeDef GPIO_InitStruct;

  if(hspi->Instance==SPI1)

  {

    /* Peripheral clock enable */

    __SPI1_CLK_ENABLE();

 

    /**SPI1 GPIO Configuration    

    PA5     ------> SPI1_SCK

    PA6     ------> SPI1_MISO

    PA7     ------> SPI1_MOSI

*/

    GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;

    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;

    GPIO_InitStruct.Pull = GPIO_NOPULL;

    GPIO_InitStruct.Speed = GPIO_SPEED_FAST;

    GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;

    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* System interrupt init*/

    HAL_NVIC_SetPriority(SPI1_IRQn, 1, 0);

    HAL_NVIC_EnableIRQ(SPI1_IRQn);

  }

}

----------------------------------------------------------

/* SPI1 init function */

void

MX_SPI1_Init

(void)

{

  hspi1.Instance = SPI1;

  hspi1.Init.Mode = SPI_MODE_MASTER;

  hspi1.Init.Direction = SPI_DIRECTION_2LINES;

  hspi1.Init.DataSize = SPI_DATASIZE_8BIT;

  hspi1.Init.CLKPolarity = SPI_POLARITY_HIGH;

  hspi1.Init.CLKPhase = SPI_PHASE_2EDGE;

  hspi1.Init.NSS = SPI_NSS_SOFT;

  hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;

  hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;

  hspi1.Init.TIMode = SPI_TIMODE_DISABLED;

  hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_ENABLED;

    hspi1.Init.CRCPolynomial = 7;

  HAL_SPI_Init(&hspi1);

}

----------------------------------------------------------

uint8_t

CSPIN_Write_Byte

(SPI_HandleTypeDef *hspi, uint8_t byte) {

        

    // Check if SPI is running

    if((hspi->Instance->CR1 &SPI_CR1_SPE) != SPI_CR1_SPE) __HAL_SPI_ENABLE(&hspi1);

    

    /* nSS signal activation - low */

    HAL_GPIO_WritePin(GPIOC, GPIO_PIN_5, GPIO_PIN_RESET);

    

    // SPI byte send.

   hspi->Instance->DR = byte;

    

    while (__HAL_SPI_GET_FLAG(&hspi1, SPI_FLAG_BSY) == true){};            

     // nSS signal deactivation - high

    HAL_GPIO_WritePin(GPIOC, GPIO_PIN_5, GPIO_PIN_SET);         

            

        return (uint8_t)(hspi->Instance->DR);

}

-------------------------------------------------------

But it doesnt work.

As you can see in pictures, the waveforms

seem

correct

, but it does not work...

With STM32F4xx StdPeriph_Driver V1.2.0

 

(it runs fine)

With STM32CubeMX and HAL drivers

 

(It does not run, and MISO always returns 0x00)