stm32g030 spi switch from HAL to LL not work 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
