Fail to write data form nrf52840 to nor flash w25q128jv

RE: Fail to write data form nrf52840 to nor flash w25q128jv

LeDucTai — Thu, 03 Jul 2025 07:43:05 GMT

Hi Hakon,

Thanks for your reminder

RE: Fail to write data form nrf52840 to nor flash w25q128jv

Hakon — Tue, 01 Jul 2025 07:17:30 GMT

Hello again,

I believe Hung addressed your issue here? https://devzone.nordicsemi.com/f/nordic-q-a/122601/can-only-mount-and-write-in-the-address-range-from-0x00---0x0200000-2mb-on-w25q128jv

Is this correct? Can we close this?

RE: Fail to write data form nrf52840 to nor flash w25q128jv

LeDucTai — Thu, 26 Jun 2025 09:17:35 GMT

and again thank you for taking care of my problem

RE: Fail to write data form nrf52840 to nor flash w25q128jv

LeDucTai — Thu, 26 Jun 2025 09:16:12 GMT

Hello Hakon,

this is my source : devzone.nordicsemi.com/.../l5_5F00_ex1.zip

sorry for this mess. i have some new clues, it seems i can only operate on the first 2mb of nor flash, my attempts to erase or mount are only allowed on the address areas of the first 2mb, i have read and written successfully on this 2mb before but at that time i was partitioning 16mb and i thought there was fragmentation in nor flash. now i partitioned 2mb and reading and writing on it seems fine no more -22 error, i am not sure this is the cause but if it is the cause is there any way i can have full access to the 16mb memory area of w25q128jv. below is the datasheet of w25q128jv and i see "Memory Protection" in it.

www.winbond.com/.../W25Q128JV RevI 08232021 Plus.pdf

RE: Fail to write data form nrf52840 to nor flash w25q128jv

Hakon — Thu, 26 Jun 2025 08:57:57 GMT

Hello,

do you mind sharing the full code here, so I can reproduce and debug this error?