custom QSPI external loader get "data read failed" error in CubeProgrammer

[SEMad]

Hi.

I have developed a custom board for STM32F746NEH6 with W25Q64.

and I make a driver for this flash chip. everything (like rea, write, erase, memory mapped mode...) works just fine...

but after making the stldr file I got this error:

 

and this is my pinout:

 

is the read function causing this error?

but loader don't need to this function.

and I tested the memory mapped mode function... it works fine... after using it in the other code the external flash works as the internal one:

 

uint8_t CSP_QSPI_EnableMemoryMappedMode(void)
{
	QSPI_CommandTypeDef sCommand = {0};
	QSPI_MemoryMappedTypeDef sMemMappedCfg;
	
	/* basic configuration */ 
  sCommand.InstructionMode          = QSPI_INSTRUCTION_1_LINE;        // * 1 line mode Send instruction * /
  sCommand.AddressSize              = QSPI_ADDRESS_24_BITS;         	// * 24 Bit address * /
  sCommand.AlternateByteMode        = QSPI_ALTERNATE_BYTES_NONE;      // * No interverter byte * /
  sCommand.DdrMode                  = QSPI_DDR_MODE_DISABLE;          // * W25Q64JV does not support DDR * /
  sCommand.DdrHoldHalfCycle         = QSPI_DDR_HHC_ANALOG_DELAY;      // * DDR mode, data output delay * /
  sCommand.SIOOMode                 = QSPI_SIOO_INST_EVERY_CMD;       // * Each transmission must send instructions * /
	
	// * Read data * / 
  sCommand.Instruction    = QUAD_OUT_FAST_READ_CMD;     // * Read status command * / 
  sCommand.AddressMode    = QSPI_ADDRESS_1_LINE;        // * 1 Line address * / 
  sCommand.DataMode       = QSPI_DATA_4_LINES;          // * 1 wire data * /
  sCommand.DummyCycles    = 8;                          // * 8 cycles * /
	
	//MemoryMapped settings
	sMemMappedCfg.TimeOutActivation = QSPI_TIMEOUT_COUNTER_DISABLE;
	sMemMappedCfg.TimeOutPeriod 		= 0;
	
	if (HAL_QSPI_MemoryMapped(&hqspi, &sCommand, &sMemMappedCfg) != HAL_OK) {
		return HAL_ERROR;
	}
	
	/* basic configuration */ 
  sCommand.InstructionMode          = QSPI_INSTRUCTION_1_LINE;        // * 1 line mode Send instruction * /
  sCommand.AddressSize              = QSPI_ADDRESS_24_BITS;         	// * 24 Bit address * /
  sCommand.AlternateByteMode        = QSPI_ALTERNATE_BYTES_4_LINES;   // * 4 Line interverter byte * /
	sCommand.AlternateBytesSize       = QSPI_ALTERNATE_BYTES_8_BITS;    // * 1 Byte alternate * /
	sCommand.AlternateBytes       		= 0xFF;    												// * should be 0xFx * /
  sCommand.DdrMode                  = QSPI_DDR_MODE_DISABLE;          // * W25Q64JV does not support DDR * /
  sCommand.DdrHoldHalfCycle         = QSPI_DDR_HHC_ANALOG_DELAY;      // * DDR mode, data output delay * /
  sCommand.SIOOMode                 = QSPI_SIOO_INST_EVERY_CMD;       // * Each transmission must send instructions * /
	
	// * Read data * / 
  sCommand.Instruction    = QUAD_INOUT_FAST_READ_CMD;   // * Read status command * / 
  sCommand.AddressMode    = QSPI_ADDRESS_4_LINES;       // * 4 Line address address * / 
  sCommand.DataMode       = QSPI_DATA_4_LINES;          // * 1 wire data * /
  sCommand.DummyCycles    = 4;                          // * 4 cycles * /
	
	//MemoryMapped settings
	sMemMappedCfg.TimeOutActivation = QSPI_TIMEOUT_COUNTER_DISABLE;
	sMemMappedCfg.TimeOutPeriod 		= 0;
	
	if (HAL_QSPI_MemoryMapped(&hqspi, &sCommand, &sMemMappedCfg) != HAL_OK) {
		return HAL_ERROR;
	}
}

so... what is the problem?

can anyone help me please?

thanks.

[SEMad · Accepted solution]

I commented the first part of memory mapped function and in the second part used 2 dummy cycle instead of the alternate 0xff byte:

uint8_t CSP_QSPI_EnableMemoryMappedMode(void)
{
	QSPI_CommandTypeDef sCommand = {0};
	QSPI_MemoryMappedTypeDef sMemMappedCfg;
 
//	/* basic configuration */
//	sCommand.InstructionMode          = QSPI_INSTRUCTION_1_LINE;        // * 1 line mode Send instruction * /
//	sCommand.AddressSize              = QSPI_ADDRESS_24_BITS;         	// * 24 Bit address * /
//	sCommand.AlternateByteMode        = QSPI_ALTERNATE_BYTES_NONE;      // * No interverter byte * /
//	sCommand.DdrMode                  = QSPI_DDR_MODE_DISABLE;          // * W25Q64JV does not support DDR * /
//	sCommand.DdrHoldHalfCycle         = QSPI_DDR_HHC_ANALOG_DELAY;      // * DDR mode, data output delay * /
//	sCommand.SIOOMode                 = QSPI_SIOO_INST_EVERY_CMD;       // * Each transmission must send instructions * /
//
//	// * Read data * /
//	sCommand.Instruction    = 0x6B;     // * Read status command * /
//	sCommand.AddressMode    = QSPI_ADDRESS_1_LINE;        // * 1 Line address * /
//	sCommand.DataMode       = QSPI_DATA_4_LINES;          // * 1 wire data * /
//	sCommand.DummyCycles    = 8;                          // * 8 cycles * /
//
//	//MemoryMapped settings
//	sMemMappedCfg.TimeOutActivation = QSPI_TIMEOUT_COUNTER_DISABLE;
//	sMemMappedCfg.TimeOutPeriod 		= 0;
//
//	if (HAL_QSPI_MemoryMapped(&hqspi, &sCommand, &sMemMappedCfg) != HAL_OK) {
//		return HAL_ERROR;
//	}
 
	/* basic configuration */
	sCommand.InstructionMode          = QSPI_INSTRUCTION_1_LINE;        // * 1 line mode Send instruction * /
	sCommand.AddressSize              = QSPI_ADDRESS_24_BITS;         	// * 24 Bit address * /
	sCommand.AlternateByteMode        = QSPI_ALTERNATE_BYTES_NONE;   // * 4 Line interverter byte * /
	//sCommand.AlternateBytesSize       = QSPI_ALTERNATE_BYTES_8_BITS;    // * 1 Byte alternate * /
	//sCommand.AlternateBytes       		= 0xFF;    												// * should be 0xFx * /
	sCommand.DdrMode                  = QSPI_DDR_MODE_DISABLE;          // * W25Q64JV does not support DDR * /
	sCommand.DdrHoldHalfCycle         = QSPI_DDR_HHC_ANALOG_DELAY;      // * DDR mode, data output delay * /
	sCommand.SIOOMode                 = QSPI_SIOO_INST_EVERY_CMD;       // * Each transmission must send instructions * /
 
	// * Read data * /
	sCommand.Instruction    = 0xEB;   // * Read status command * /
	sCommand.AddressMode    = QSPI_ADDRESS_4_LINES;       // * 4 Line address address * /
	sCommand.DataMode       = QSPI_DATA_4_LINES;          // * 1 wire data * /
	sCommand.DummyCycles    = 6;                          // * 4 cycles * /
 
	//MemoryMapped settings
	sMemMappedCfg.TimeOutActivation = QSPI_TIMEOUT_COUNTER_DISABLE;
	sMemMappedCfg.TimeOutPeriod 		= 0;
 
	if (HAL_QSPI_MemoryMapped(&hqspi, &sCommand, &sMemMappedCfg) != HAL_OK) {
		return HAL_ERROR;
	}
 
	return HAL_OK;
}

and then commented the configuration func part in CSP_QUADSPI_Init function... and it finally worked!

in the configuration I set QE bit to "high" (for jv series it is high by default) and DRV0/DRV1 to "00"... but actually this was the cause of problem!!

[Tesla DeLorean]

Yes, typically if the Init() fails the tools can timeout or fault.The read in these cases uses the MCU directly to access the memory-mapped space.