About nRF52840 save file error

RE: About nRF52840 save file error

Sigurd — Fri, 13 Dec 2019 15:56:54 GMT

You could try to move the "ff_result = f_sync( & file);" outside the for-loop (for (uint16_t i = 0; i < 96; i++)

RE: About nRF52840 save file error

Blance — Sat, 23 Nov 2019 06:33:10 GMT

Hi,

The proposed method is mainly to reproduce the problem.
What I want to know is the reason for this problem.

For example, as you mentioned,
1. The question is: Is the f_mkfs() parameter different from the PC formatting settings option?
But I don’t seem to affect when I don’t delete those two lines.

2. Or when I delete those two lines will cause fatfs to be disturbed?
I only want to see the QSPI DISK when I connect to the PC, so I choose to delete those two lines, or have other methods that don't have to be deleted but can be disabled by the PC?

If I don't understand the reason, I can't guarantee that the follow-up development will not repeat itself.

RE: About nRF52840 save file error

Sigurd — Fri, 22 Nov 2019 16:09:16 GMT

Hi,

[quote user=""]Configure the unit size when formatting. I choose 2048 bytes.[/quote]

Does it help to set the file allocation unit parameter in f_mkfs() from 1024 to 2048 ?

[quote user=""]3. Try to add the 2 lines deleted in step 2, as follows:[/quote][quote user=""]The regenerated file content will return to normal.[/quote]

So this fixed the issue, correct ?