FatFS example with SD card: disk initialization fails

RE: FatFS example with SD card: disk initialization fails

awneil — Mon, 07 Jun 2021 12:58:42 GMT

[quote userid="103000" url="~/f/nordic-q-a/75835/fatfs-example-with-sd-card-disk-initialization-fails/313881#313881"]in diskio_blkdev.c: nrf_blk_dev_init returns with code 17 (0x11) [/quote]

So have you looked-up what that code means?

And have you stepped into that code to see where, exactly, it is failing; ie, what is causing it to return that code ?

FatFs documentation:

elm-chan.org/.../00index_e.html

[quote userid="103000" url="~/f/nordic-q-a/75835/fatfs-example-with-sd-card-disk-initialization-fails/313881#313881"]I haven't used scope or analyser and do not have any.[/quote]

Getting this to work requires that the hardware is correct - how did you plan to test/debug the hardware?

How have you verified that your connections are correct & working?

Lots of info about SD-Cards & their hardware at the bottom of the http://elm-chan.org/fsw/ff/00index_e.html page, under 'Resources' - in particular, see 'How to Use MMC/SDC'

RE: FatFS example with SD card: disk initialization fails

trashman — Mon, 07 Jun 2021 10:16:14 GMT

Yes, I tried following step by step what is happening and:

in diskio_blkdev.c: nrf_blk_dev_init returns with code 17 (0x11) in disk_initialize function
in nrf_block_dev_sdc.c: in block_dev_sdc_init function the following error event is called: {ev_type=0xb5, result=0x34, p_blk_req=0, p_work->p_context}

If you can give me any hint I can debug further to see more, but don't know what to look for.

No, I haven't used scope or analyser and do not have any.

RE: FatFS example with SD card: disk initialization fails

awneil — Tue, 01 Jun 2021 00:24:37 GMT

[quote userid="103000" url="~/f/nordic-q-a/75835/fatfs-example-with-sd-card-disk-initialization-fails"](disk_initialize(0) returns 1).[/quote]

have you stepped into disk_initialise() to see where, exactly, it is failing; ie, what is causing it to return 1 ?

have you used a scope or analyser to see what's happening on the wires?