ChibiOS Free Embedded RTOS

Hi,

My setup:
- ChibiOS version or subversion revision number: 21.6.0
- Compiler: GCC 10.3.0
- Platform and board: STM32H743VI, but NUCLEO144 with STM32H743ZI is also affected

I am trying to use SIO with FIFO on H7 platform. os/hal/ports/STM32/STM32H7xx/platform.mk says that this MCU family uses ...

Here you have not-so-complete board files for Embest board, although SDIO pins are configured there, along with sdc_lld_is_card_inserted() and stuff. Please diff those files to ST_STM32F4_DISCOVERY's ones to find out what's going on there. Kudos also go to Tectu:)

With all this sample code (tests ...

Have a look here:
http://forum.chibios.org/phpbb/viewtopic.php?f=3&t=519&hilit=pito+sdio#p4807
There is a working example attached within the posts somewhere for SDIO card speed measurements, maybe it helps you somehow.
Unfortunately this works the same way, sometimes it mounts card immediately ...

Hi,
I think it is hardware problem. Check carefully the board with a magnifying glass - possibly a cold solder joints! Also check contacts of the reader.
I checked every line between discovery board and card socket and they are continous. Also solder joints look ok. I also tried another STM32F4 ...

@alexblack, @Giovanni, can you tell if you have any other information on this?

I use STM32F407-DISCOVERY with Embest board and SDIO interface. ChibiOS/RT is 2.7.0unstable (most recent). My four cards, as turned out below, are most likely all V2.0. And I have quite related problem with them.

I have ...

tronicgr wrote:So we can use the PD5 pin for an LCD screen for example without having to physically alter the STM32F4-Discovery board then?

You can, at least it works if you use it as an output: I use PD5 as WR line in 8080 16-bit display (FSMC_NWE).

Tectu wrote:Can you please upload a .zip of your code containing your board files? There are different versions of Tectu's board files out there. I will try to get a final one together this weekend.

If you asked about mine, I attach them below.

On Embest board there is a GPIOB_PIN15 that is connected to ~CD of the card, so it should work as a card detect, only negated. It is not configured in Tectu's board files, however. Should be sth like this: GPIOB_SD_DETECT.

Tectu, maybe I could, but I have no hardware to test code on. Also, I am not going to be able to order this board in very short time

That warning is known ad accepted, you can suppress that by putting a "return 0" at the end but doing so the Keil and IAR compiler would start complaining about unreachable code.

Being 2 compilers vs 1 compiler Keil and IAR win and the warning using GCC has to stay.


...so this is the reason I ...