fs: file write error (-5)

[andy]

Hi~:

I use microsd card on nrf21540, the sd card mounted success and write file success, but after some time ,I found write error.

And this issue can be reappeared. Can you give me some suggession.Thanks!

I use the ncs V1.9.

[Jørgen Holmefjord]

andy said:

I update ncs to V2.1.1,  this issue remains.The sd card is mounted OK,and can write some data to sd card, but  fs_sync costs about 10 seconds and return -5. 

I believe that the 10 seconds comes from CONFIG_SD_DATA_TIMEOUT, which by default is set to 10 seconds. 

The reason that fs_sync did not give this error before is likely that the support for this was not added until recently, see this pull request.

I have still not found the root cause for the error though, would need to check that further.

[andy]

I disable this code, then continue write data to sd card is OK,and no data lose.Is there any problem with the "check the status of the sd card"

[m.saadat]

Any news on that? I have the same problem with V2.1.2. Did you face any issues after disabling that line?

[andy]

I have not update to V2.1.2,there is no issue now. you can try it. How I hope the next version solves this issue.

[m.saadat]

I tried commenting out the line. It worked for a while. After a couple of minutes (completely random), it messes up the i2c communication. For now, I'm just using a low timeout. I hope it will be fixed real soon.