M95M02-dr EEPROM Cant write data.

[CDe S.1]

Hi,

I've been trying to write data into M95M02 EEPROM with SPI and i cant seem to write data into the memory according to the data sheet. I checked the write status with status register and WIP bit is set to 0 within the write cycle, meaning there is no write in progress. (Status register works fine). I've given logic level high to write protect bit, enabling modification of BP0 and BP1, and its currently set to write protect mode 'none'. But still i cant seem to write any data into the EEPROM. Anyway i can fix this?

PS. I'm checking my SPI trasnmissions with a logic analyser.

[Peter BENSCH · Accepted solution]

Unfortunately, you did not include a program snippet on how to try to access the EEPROM.

But independently of that I would recommend to have a look at the software expansion package X-CUBE-EEPRMA1 which was developed especially for external EEPROMs.

Good luck!

Regards

/Peter