SPI2 not working on NUCLEO-L452RE

[LURAN.1]

Hello

I've got an issue to send byte though SPI2 on the STM32L452.

SPI1 and SPI3 works without any issue. But nothing on the SPI2.

The code was generated from STM32CubeMX.

Here is the SPI2 init :

static void MX_SPI2_Init(void)
{
 
  /* USER CODE BEGIN SPI2_Init 0 */
 
  /* USER CODE END SPI2_Init 0 */
 
  LL_SPI_InitTypeDef SPI_InitStruct = {0};
 
  LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
 
  /* Peripheral clock enable */
  LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_SPI2);
 
  LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOC);
  LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOB);
  /**SPI2 GPIO Configuration
  PC2   ------> SPI2_MISO
  PC3   ------> SPI2_MOSI
  PB10   ------> SPI2_SCK
  */
  GPIO_InitStruct.Pin = LL_GPIO_PIN_2|LL_GPIO_PIN_3;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_5;
  LL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
  GPIO_InitStruct.Pin = LL_GPIO_PIN_10;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_5;
  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
  /* USER CODE BEGIN SPI2_Init 1 */
 
  /* USER CODE END SPI2_Init 1 */
  /* SPI2 parameter configuration*/
  SPI_InitStruct.TransferDirection = LL_SPI_FULL_DUPLEX;
  SPI_InitStruct.Mode = LL_SPI_MODE_MASTER;
  SPI_InitStruct.DataWidth = LL_SPI_DATAWIDTH_8BIT;
  SPI_InitStruct.ClockPolarity = LL_SPI_POLARITY_LOW;
  SPI_InitStruct.ClockPhase = LL_SPI_PHASE_1EDGE;
  SPI_InitStruct.NSS = LL_SPI_NSS_SOFT;
  SPI_InitStruct.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV8;
  SPI_InitStruct.BitOrder = LL_SPI_MSB_FIRST;
  SPI_InitStruct.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE;
  SPI_InitStruct.CRCPoly = 7;
  LL_SPI_Init(SPI2, &SPI_InitStruct);
  LL_SPI_SetStandard(SPI2, LL_SPI_PROTOCOL_MOTOROLA);
  LL_SPI_DisableNSSPulseMgt(SPI2);
  /* USER CODE BEGIN SPI2_Init 2 */
 
  /* USER CODE END SPI2_Init 2 */
 
}

In the main, the clock config is done and must be OK as all the serial peripheral are able to send and receive bytes (SPI1, SPI3, and UART2 and UART3). Here is the clock config :

void SystemClock_Config(void)
{
  LL_FLASH_SetLatency(LL_FLASH_LATENCY_4);
  while(LL_FLASH_GetLatency()!= LL_FLASH_LATENCY_4)
  {
  }
  LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE1);
  LL_RCC_HSE_Enable();
 
   /* Wait till HSE is ready */
  while(LL_RCC_HSE_IsReady() != 1)
  {
 
  }
  LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_1, 20, LL_RCC_PLLR_DIV_2);
  LL_RCC_PLL_EnableDomain_SYS();
  LL_RCC_PLL_Enable();
 
   /* Wait till PLL is ready */
  while(LL_RCC_PLL_IsReady() != 1)
  {
 
  }
  LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
 
   /* Wait till System clock is ready */
  while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
  {
 
  }
  LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
  LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
  LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
 
  LL_Init1msTick(80000000);
 
  LL_SetSystemCoreClock(80000000);
  LL_RCC_SetUSARTClockSource(LL_RCC_USART2_CLKSOURCE_PCLK1);
  LL_RCC_SetUSARTClockSource(LL_RCC_USART3_CLKSOURCE_PCLK1);
}

To send a byte for test here is a simple call on a main while

  while (1)
  {
    SPI2_CS_LOW;
    SPI_WriteByte(SPI2,0x83);
    SPI2_CS_HIGH;
  }

with :

/**
* @brief  Write a byte on the SPI.
* @param  vp_Data: byte to send.
*         SPIx : selected SPI
* @retval None
*/
void SPI_WriteByte(SPI_TypeDef *SPIx, uint8_t vp_Data)
{  
  /*!< Send the byte */
  LL_SPI_TransmitData8(SPIx, vp_Data);  
  
  /*!< Wait until the transmit buffer is empty */
  while(LL_SPI_IsActiveFlag_TXE(SPIx) == RESET);
  while(LL_SPI_IsActiveFlag_BSY(SPIx) == SET);  
}

Is there something I missed with SPI2 on the STM32L452 ?

Thanks for your support