Replacing QSPI flash with MT25QL512ABB

mehmetkaradag — Mon, 12 Aug 2024 10:21:36 GMT

hello NXP,

i am using MIMXRT1170. i am planning to update the flash size up to 64MB(MT25QL512ABB).

i can write,read and erase the flash memory. but when I write to any address exceeding 16MB, it is also written to the address 0x30020000. and i cannot jump to any address exceeding 16MB.

I made the necessary changes in flexspi_nor_config.c. This allows me to write to flash and upload code. However, the issues mentioned above persist. Additionally, I am using the fsl_romapi_cm7 drivers.

Can you help identify the problem?

thanks...

回复： Replacing QSPI flash with MT25QL512ABB

Gavin_Jia — Thu, 15 Aug 2024 09:59:59 GMT

Hi @mehmetkaradag ，

Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
As you know, the 24-bit address can access up to 16 MB of space, obviously, the size of your flash exceeds it.
And the default length of the address of MT25QL512ABB maybe 24 bit(didn't confirm it), so you need to enable the 4 Bytes address mode prior to accessing the space exceeding the 128M-bit data (16MB).

These posts should be useful to you:

1. https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/imxrt117x-Micron-Serial-NOR-MT25QL256ABA-Cannot-program-beyond/td-p/1705413
2. https://community.nxp.com/t5/i-MX-Processors/MT25QL256-Quad-SPI-Error-on-IMXRT1176/td-p/1509034
3. https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/RT1052-W25Q512-QSPI-FLASH-not-getting-full-memory-access/m-p/1041496

Best regards,
Gavin

topic 回复： Replacing QSPI flash with MT25QL512ABB in i.MX Processors

Replacing QSPI flash with MT25QL512ABB

回复： Replacing QSPI flash with MT25QL512ABB