Failed to read W25Q128 spi flash beyond 2 Mbyte

[SimonTapmeyer]

Hello,

I am use a winbond W25Q128JV chip which is connected to the OCTOSPI interface of my STM32H563. I read/write the flash in direct mode. The transfers are done with DMA. Everything works fine as long as the address is smaller than 0x200000 (2 MByte). As soon as I cross that border the DMA stops with HAL_XSPI_FLAG_TE. Has anyone an idea what I am doing wrong?

This is how I parametrize the transfer:

(void)memset(&eCmdType, 0x00, sizeof(eCmdType));
eCmdType.Instruction		= 0x0B;	/* Fast read data */
eCmdType.InstructionMode	= HAL_XSPI_INSTRUCTION_1_LINE;
eCmdType.InstructionWidth	= HAL_XSPI_INSTRUCTION_8_BITS;
eCmdType.InstructionDTRMode	= HAL_XSPI_INSTRUCTION_DTR_DISABLE;
eCmdType.AddressMode		= HAL_XSPI_ADDRESS_1_LINE;
eCmdType.AddressWidth		= HAL_XSPI_ADDRESS_24_BITS;
eCmdType.Address		= _iStartAddress;
eCmdType.DataMode		= HAL_XSPI_DATA_1_LINE;
eCmdType.DataDTRMode		= HAL_XSPI_DATA_DTR_DISABLE;
eCmdType.DataLength		= _iSize;
eCmdType.AlternateBytesMode	= HAL_XSPI_ALT_BYTES_NONE;
eCmdType.SIOOMode		= HAL_XSPI_SIOO_INST_EVERY_CMD;
eCmdType.DummyCycles		= 8;

[Tesla DeLorean]

I'd also prefer the use of the lower case 'b' for bits, which has been in wide usage for decades

MByte

Mbit

I'd also like to see the options list both bit and byte sizes as it draws attention to the specifics and differences.

[KDJEM.1]

Hello,

Thank you for sharing your feedback and requests.

I reported internally.

Internal ticket number: 185679 (This is an internal tracking number and is not accessible or usable by customers).

Thank you for your contribution in STCommunity.

Kaouthar