Question
STM32F446RE QSPI in single line mode not transmitting
Hello,
I am attempting to set up QSPI to operate in classic SPI mode so that I can transmit data to another STM32 processor. I have set up my code as followed and have connected my QSPI lines to an oscilloscope and a half duplex SPI slave on the same board for testing. I am unable to see any signals being sent over the QSPI lines. Have I setup my QSPI_CommandTypeDef incorrectly or am I missing necessary HAL commands?
QSPI_HandleTypeDef hqspi;
SPI_HandleTypeDef hspi1;
uint8_t test_data = 6;
uint8_t hold;
QSPI_CommandTypeDef cmd = {
.Instruction = QSPI_INSTRUCTION_NONE,
.InstructionMode = QSPI_INSTRUCTION_1_LINE,
.DummyCycles = 0,
.Address = QSPI_ADDRESS_NONE,
.AddressMode = QSPI_ADDRESS_1_LINE,
.AddressSize = QSPI_ADDRESS_24_BITS,
.AlternateByteMode = QSPI_ALTERNATE_BYTES_1_LINE,
.DataMode = QSPI_DATA_1_LINE,
.NbData = 0,
};
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_QUADSPI_Init(void);
static void MX_SPI1_Init(void);
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_QUADSPI_Init();
MX_SPI1_Init();
while (1)
{
HAL_QSPI_Command(&hqspi, &cmd, 100);
HAL_QSPI_Transmit(&hqspi, &test_data, 100);
HAL_Delay(100);
HAL_SPI_Receive(&hspi1, &hold, 1, 100);
}
}