About KMach.2

KMach.2 · 2021-09-16

I'm trying to make a program one of the features of which is SD card support. I'm using HAL libraries entirely, it's hard to find an example that combines SD card, SDIO communication and HAL libraries.1. problem is that function f_mkdir, f_open retu...

KMach.2 · 2021-10-27

I still discovered an interesting relation, that by enabling hardware flow control in SDIO. f_mount returns FR_OK. However, on the next step an error is shown.

KMach.2 · 2021-10-25

Ok, I did some work on the problem, I traced the program on two cards and two different boards, one my production one from the manufacturer.I tried to initialize the card with disk_initialize function and it works fine. Each card on each board throws...

KMach.2 · 2021-09-20

I tried, I tried an empty file to open at all. Read the full file. I even used the f_stat function, but I don't see any change. I need to bite into the low level api. Generally it's that the first attempt to access the card ends with an FR_NOT_READY ...

KMach.2 · 2021-09-17

I tried it on two different cards. The first, target one is a 2GB kingston older one and the second one is a 4GB kingston SDHC. I don't know their parameters, but I specifically chose smaller/older cards. I formatted them properly to FAT format befor...

KMach.2 · 2021-09-17

I'm using 5V USB voltage and TC1107 stabilizer to obtain 3.3V with 47K resistors. This is probably not the problem. I checked the other resistors just to be sure. Also no.

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Problem using µSD card with SDIO and FatFs

Re: Problem using µSD card with SDIO and FatFs

Re: Problem using µSD card with SDIO and FatFs

Re: Problem using µSD card with SDIO and FatFs

Re: Problem using µSD card with SDIO and FatFs

Re: Problem using µSD card with SDIO and FatFs