stm32g030 spi switch from HAL to LL not work

[Zhou JianQiang]

Hi :

I want to switch my project from HAL to LL because of flash size.

But SPI doesn't work after switching.

When I using HAL, the code below in main function works fine, uart will print OK.

When I switch to LL, it will print NG.

After switching to LL, I already add LL_SPI_Enable(SPI1); to MX_SPI1_Init function.

Cubemx project and all code is as attachment.

  uint8_t data = 0x80;

  CS_GPIO_Port->BSRR = (uint32_t)CS_Pin << 16u;

#ifdef USE_HAL_DRIVER
  HAL_SPI_Transmit(&hspi1, &data, 1, 100);
  HAL_SPI_Receive(&hspi1, &data, 1, 100);
#else
  while (!LL_SPI_IsActiveFlag_TXE(SPI1));
  LL_SPI_TransmitData8(SPI1, data);

  while (!LL_SPI_IsActiveFlag_TXE(SPI1));
  LL_SPI_TransmitData8(SPI1, 0xff);
  while (!LL_SPI_IsActiveFlag_RXNE(SPI1));
  data = LL_SPI_ReceiveData8(SPI1);
#endif

  CS_GPIO_Port->BSRR = CS_Pin;

  if(data == 0x05)
  {
      while (!LL_USART_IsActiveFlag_TXE(USART2));
      LL_USART_TransmitData8(USART2, 'O');
      while (!LL_USART_IsActiveFlag_TXE(USART2));
      LL_USART_TransmitData8(USART2, 'K');
  }
  else
  {
      while (!LL_USART_IsActiveFlag_TXE(USART2));
      LL_USART_TransmitData8(USART2, 'N');
      while (!LL_USART_IsActiveFlag_TXE(USART2));
      LL_USART_TransmitData8(USART2, 'G');
  }

MX_SPI1_Init:

/**
  * @brief SPI1 Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_SPI1_Init(void)
{

  /* USER CODE BEGIN SPI1_Init 0 */

  /* USER CODE END SPI1_Init 0 */

  LL_SPI_InitTypeDef SPI_InitStruct = {0};

  LL_GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* Peripheral clock enable */
  LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SPI1);

  LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);
  /**SPI1 GPIO Configuration
  PA5   ------> SPI1_SCK
  PA6   ------> SPI1_MISO
  PA7   ------> SPI1_MOSI
  */
  GPIO_InitStruct.Pin = SCL_Pin;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
  LL_GPIO_Init(SCL_GPIO_Port, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = SDO_Pin;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
  LL_GPIO_Init(SDO_GPIO_Port, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = SDA_Pin;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
  LL_GPIO_Init(SDA_GPIO_Port, &GPIO_InitStruct);

  /* USER CODE BEGIN SPI1_Init 1 */

  /* USER CODE END SPI1_Init 1 */
  /* SPI1 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_DIV4;
  SPI_InitStruct.BitOrder = LL_SPI_MSB_FIRST;
  SPI_InitStruct.CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE;
  SPI_InitStruct.CRCPoly = 7;
  LL_SPI_Init(SPI1, &SPI_InitStruct);
  LL_SPI_SetStandard(SPI1, LL_SPI_PROTOCOL_MOTOROLA);
  LL_SPI_EnableNSSPulseMgt(SPI1);
  /* USER CODE BEGIN SPI1_Init 2 */
#ifndef USE_HAL_DRIVER
  LL_SPI_Enable(SPI1);
#endif
  /* USER CODE END SPI1_Init 2 */

}