OpenWrt Forum Archive

Topic: MMC/SD module for WRT54G v3.1 help

The content of this topic has been archived on 30 Apr 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Can anyone have the correct scheme of solder point of gpio on this hardware?
I have follow the istructions on openwrt wiki but don't work!!! i dont know if is a hardware or a software problem....
this is my current map:

1. CS   -> GPIO7 (DMZ led)

2. DI    -> GPIO5 (between RA11 and RH29)

3. VSS -> GND   (right side of amber led)

4. VDD -> 3.3v  (1 point of JP1)

5. CLK -> GPIO3 (9 point of JP1)

6. VSS2 -> GND (9 point of JP1)

7. DO   -> GPIO4 (right side of cisco button)

Is correct this map?
Thank you

Hi !

i setup successful 4 WRT54G 3.X using Wiki entries. Mayber you don't use correct mmc.o

ciao gerd

gerd wrote:

Mayber you don't use correct mmc.o

Always compile by yourself. It's easy and you make sure using the right binary with correct GPIOs. Also try to use the optimized version of mmc.

I used the optimized driver for my WRT54GL and it works perfect smile

Don't tell it to me :-)
i did .....

ciao gerd

1. CS   -> GPIO7 (DMZ led)

2. DI    -> GPIO5 (between RA11 and RH29)   white LED  (Anode)

3. VSS -> GND   (right side of amber led)

4. VDD -> 3.3v  (1 point of JP1)

5. CLK -> GPIO3 (9 point of JP1)       http://www.byteclub.net/wiki/images/d/d … _gpio3.jpg

6. VSS2 -> GND (9 point of JP1)

7. DO   -> GPIO4 (right side of cisco button)

Is correct this map?
Thank you

I use DD-WRT 2.4.RC-6   .... sad  use openwrt 0.9 ,mmc can't install  !!

this sequence is Wrog!!...I have re-check the howto on OpenWRT wiki and I have invert two point...

The CLK pin with GND....now after this correct the mmc works FINE!!!

don't forget to mask gpio with  echo "0x9c" > /proc/diag/gpiomask

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