STM32H757: Trying to read ID (Command 0x9F) HAL_QSPI_Receive locks up.
I'm starting super simple - Just reading the Manufacturer ID. Using a Cypress S25FL256L Flash. My test program:
--------
void QSPI_TestTask (void * pvParameters)
{
QSPI_CommandTypeDef sCommand;
uint32_t MyID = 0;
/* Initialize QuadSPI ------------------------------------------------------ */
hqspi.Instance = QUADSPI;
HAL_QSPI_DeInit (&hqspi);
hqspi.Init.ClockPrescaler = 1;
hqspi.Init.FifoThreshold = 4;
hqspi.Init.SampleShifting = QSPI_SAMPLE_SHIFTING_NONE;
hqspi.Init.FlashSize = QSPI_FLASH_SIZE;
hqspi.Init.ChipSelectHighTime = QSPI_CS_HIGH_TIME_1_CYCLE;
hqspi.Init.ClockMode = QSPI_CLOCK_MODE_0;
hqspi.Init.FlashID = QSPI_FLASH_ID_1;
hqspi.Init.DualFlash = QSPI_DUALFLASH_DISABLE;
if (HAL_QSPI_Init (&hqspi) != HAL_OK)
{
printf ("HAL_QSPI_Init ERROR\n");
Error_Handler ();
}
MyID = QSPI_S25FL256L_ReadID ();
printf ("QSPI_S25FL256L_ReadID Returned %ld\n", MyID);
}
uint32_t QSPI_S25FL256L_ReadID (void)
{
// Cypress S25FL256L
QSPI_CommandTypeDef s_command; // QSPI transmission configuration
uint8_t QSPI_ReceiveBuff [3]; // Store the data read by QSPI
uint32_t S25FL_ID; // Device ID
s_command.InstructionMode = QSPI_INSTRUCTION_1_LINE; // 1 line instruction mode
s_command.AddressSize = QSPI_ADDRESS_24_BITS; // 24 bit address
s_command.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE; // No delivery byte
s_command.DdrMode = QSPI_DDR_MODE_DISABLE; // Prohibit DDR mode
s_command.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY; // DDR mode data delay, not used here
s_command.SIOOMode = QSPI_SIOO_INST_EVERY_CMD; // Send instructions each time transfer
s_command.AddressMode = QSPI_ADDRESS_NONE; // No address mode
s_command.DataMode = QSPI_DATA_1_LINE; // 1 line data mode
s_command.DummyCycles = 0; // empty cycle
s_command.NbData = 3; // Transport data length
s_command.Instruction = READ_ID_CMD2; // Perform a read device ID command
// Send instructions
printf ("QSPI_S25FL256L_ReadID: Calling HAL_QSPI_Command\n");
if (HAL_QSPI_Command (&hqspi, &s_command, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
{
printf ("QSPI_S25FL256L_ReadID: HAL_QSPI_Command READ_ID_CMD2 ERROR\n");
return (-1);
}
// Receive data
printf ("QSPI_S25FL256L_ReadID: Calling HAL_QSPI_Receive\n");
if (HAL_QSPI_Receive (&hqspi, QSPI_ReceiveBuff, HAL_QPSI_TIMEOUT_DEFAULT_VALUE) != HAL_OK)
{
printf ("QSPI_S25FL256L_ReadID: HAL_QSPI_Receive READ_ID_CMD2 ERROR\n");
return (-1);
}
// Combined with the obtained data into ID
printf ("QSPI_S25FL256L_ReadID: GOT ID!\n");
S25FL_ID = ((QSPI_ReceiveBuff [0] << 16) | (QSPI_ReceiveBuff [1] << 8 ) | QSPI_ReceiveBuff [2]);
return S25FL_ID; // Return ID
} // QSPI_S25FL256L_ReadID
-------------------------------
RESULTS:
QSPI_S25FL256L_ReadID: Calling HAL_QSPI_Command
QSPI_S25FL256L_ReadID: Calling HAL_QSPI_Receive
<< Board lock up, WDOG resets MCU >>
Any clue why?