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 */
}
