Need to accurately read Manufacturer/Device ID using QuadSPI from a W25Q32JV (Winbond Flash).

[Ahmed_KKK]

I understand need to send Instruction 0x90, followed by 3 dummy bytes 0x00 to external flash. The rest configuration is OK. The code is as following.

This is SPI_INIT function.

static void MX_QUADSPI_Init(void)

{

 /* QUADSPI parameter configuration*/

 hqspi.Instance = QUADSPI;

 hqspi.Init.ClockPrescaler = 0;

 hqspi.Init.FifoThreshold = 4;

 hqspi.Init.SampleShifting = QSPI_SAMPLE_SHIFTING_HALFCYCLE;

 hqspi.Init.FlashSize = 23;

 hqspi.Init.ChipSelectHighTime = QSPI_CS_HIGH_TIME_2_CYCLE;

 hqspi.Init.ClockMode = QSPI_CLOCK_MODE_0;

 hqspi.Init.FlashID = QSPI_FLASH_ID_2;

 hqspi.Init.DualFlash = QSPI_DUALFLASH_DISABLE;

 if (HAL_QSPI_Init(&hqspi) != HAL_OK)

 {

  Error_Handler();

 }

}

and the following function is used to read ID from Flash. The Manufacturing ID is of 1 byte and Device ID is of 2 bytes. So the length is 3. Address is 0x00. how to send 3 dummy bytes (0x00). Shall I edit dummy cycles for it?

void QSPI_Flash_ID_Read(uint8_t *data, int length, uint32_t address){

 QSPI_AutoPollingMemReady(&hqspi);

 QSPI_CommandTypeDef sCommand;

 sCommand.InstructionMode  = QSPI_INSTRUCTION_1_LINE;

 sCommand.AddressSize    = QSPI_ADDRESS_24_BITS;

 sCommand.AlternateByteMode = QSPI_ALTERNATE_BYTES_NONE;

 sCommand.DdrMode      = QSPI_DDR_MODE_DISABLE;

 sCommand.DdrHoldHalfCycle = QSPI_DDR_HHC_ANALOG_DELAY;

 sCommand.SIOOMode     = QSPI_SIOO_INST_EVERY_CMD;

 /* Reading Sequence ------------------------------------------------ */

 sCommand.Instruction = READ_ID_CMD3; //0x90

 sCommand.AddressMode = QSPI_ADDRESS_1_LINE;

 sCommand.Address   = address;

 sCommand.NbData   = length;

 sCommand.DataMode  = QSPI_DATA_4_LINES;

 sCommand.DummyCycles = 0;

HAL_QSPI_Command(&hqspi, &sCommand, HAL_QPSI_TIMEOUT_DEFAULT_VALUE);

HAL_QSPI_Receive(&hqspi, data, 1000);

}

[Pavel A.]

From the data sheet, the command 0x90 uses one output line. So,

 sCommand.DataMode  = QSPI_DATA_1_LINE;

[Ahmed_KKK · Accepted solution]

PROBLEM SOLVED!

Current settings for SPI QUAD I/O.

 /* Reading Sequence*/

sCommand.Instruction = 0x94;

sCommand.AddressMode = QSPI_ADDRESS_4_LINES;

sCommand.Address   = address;//0x000000

sCommand.NbData   = length;

sCommand.DataMode  = QSPI_DATA_4_LINES;

sCommand.DummyCycles = 4;

[KDJEM.1]

Thanks @Ahmed_KKK​  for sharing the exact solution. That may be helpful for other users.