s132 sd_flash_page_erase problem

[Stein Helge Riise]

Started out with the ble_nus-exmple. Added logging of a sensor to flash, and got it to work in SDK11, even without using the sd_flash*-routines, but writing/erasing directly using NVMC.

After upgrading, I got write working by using sd_flash_write. But page-erasing is giving me problems.

I can write to the flash:

err_code = sd_flash_write(addr_to, addr_from, 4);

But when I try to erase a page, I get hard fault.

err_code = sd_flash_page_erase(pg_num_write);

Yes, I have been searching in here without luck. Probably something I stupid I do/did not do, so I definately need some help here.

Stein Helge

[superpak]

Is "pg_num_write" an address or the page number that you want to erase? I believe sd_flash_page_erase takes in the actual physical page number as the input parameter. What value are you using for pg_num_write?

[Stein Helge Riise]

I tried both. Here are the page numbers shown. First in hex, then in decimal. Maybe I use the wrong numbers?

sd_flash_page_erase(40) (64)
sd_flash_page_erase(41) (65)

[Stein Helge Riise]

Don't quite know what happened, but after

• restarting Keil
• a complete rebuild of the project
• erasing the whole flash
• reprogramming SD..

Both writing and erasing now works just fine.

Thnx :-)