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STM32F429DISCO SPI

Question asked by alyaev.ivan on Mar 23, 2015
Hello. I have some problems with SPI of my STM32F429DISCO board. I want to read "WHO_AM_I" of L3GD20. But when I read received data there is many different numbers, but not 0xD4. I'm created project with stm32cubemx and here is the code, associated with SPI.

void MX_SPI5_Init(void)
{
 
  hspi5.Instance = SPI5;
  hspi5.Init.Mode = SPI_MODE_MASTER;
  hspi5.Init.Direction = SPI_DIRECTION_2LINES;
  hspi5.Init.DataSize = SPI_DATASIZE_8BIT;
  hspi5.Init.CLKPolarity = SPI_POLARITY_LOW;
  hspi5.Init.CLKPhase = SPI_PHASE_1EDGE;
  hspi5.Init.NSS = SPI_NSS_SOFT;
  hspi5.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
  hspi5.Init.FirstBit = SPI_FIRSTBIT_MSB;
  hspi5.Init.TIMode = SPI_TIMODE_ENABLED;
  hspi5.Init.CRCCalculation = SPI_CRCCALCULATION_ENABLED;
    hspi5.Init.CRCPolynomial = 7;
  HAL_SPI_Init(&hspi5);
 
}
 
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
 
  GPIO_InitTypeDef GPIO_InitStruct;
  if(hspi->Instance==SPI5)
  {
  /* USER CODE BEGIN SPI5_MspInit 0 */
 
  /* USER CODE END SPI5_MspInit 0 */
    /* Peripheral clock enable */
    __SPI5_CLK_ENABLE();
   
    /**SPI5 GPIO Configuration   
    PF7     ------> SPI5_SCK
    PF8     ------> SPI5_MISO
    PF9     ------> SPI5_MOSI
    */
    GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
    GPIO_InitStruct.Alternate = GPIO_AF5_SPI5;
    HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
 
  /* USER CODE BEGIN SPI5_MspInit 1 */
 
  /* USER CODE END SPI5_MspInit 1 */
  }
 
}
 
void SystemClock_Config(void)
{
 
  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
 
  __PWR_CLK_ENABLE();
 
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
 
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 4;
  RCC_OscInitStruct.PLL.PLLN = 256;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV8;
  RCC_OscInitStruct.PLL.PLLQ = 12;
  HAL_RCC_OscConfig(&RCC_OscInitStruct);
 
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1
                              |RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
 
}
 
 
 
int main(void)
{
 
  /* USER CODE BEGIN 1 */
 
  /* USER CODE END 1 */
 
  /* MCU Configuration----------------------------------------------------------*/
 
  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();
 
  /* Configure the system clock */
  SystemClock_Config();
 
  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_SPI5_Init();
  MX_USART1_UART_Init();
 
  /* USER CODE BEGIN 2 */
 
  /* USER CODE END 2 */
 
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
  /* USER CODE END WHILE */
        HAL_GPIO_WritePin(GPIOC, GPIO_PIN_1, GPIO_PIN_RESET);
        HAL_SPI_TransmitReceive(&hspi5, &address, &data, sizeof(data), 5000);
        HAL_GPIO_WritePin(GPIOC, GPIO_PIN_1, GPIO_PIN_RESET);
        if(data == 0xD4) {
            HAL_GPIO_WritePin(GPIOG, GPIO_PIN_13, GPIO_PIN_SET);
        }
        else{
            HAL_GPIO_WritePin(GPIOG, GPIO_PIN_14, GPIO_PIN_SET);
        }
  /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
 
}

On the oscilloscope i have seen clock signal, MOSI signal and CS signal. But MISO signal is also in high level. Or when i have pull down or on high speed i have low level. Such changes i have seen when i changed CPOL and CPHA. Please help

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