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sidhant
Joined: 22 Jun 2012, 07:21
Posts: 11
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| 28 Aug 2012, 19:12 |
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schueler-maroldt
Joined: 03 Sep 2012, 16:54
Posts: 6
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_________________
regards Joerg
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| 03 Sep 2012, 17:11 |
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sidhant
Joined: 22 Jun 2012, 07:21
Posts: 11
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| 03 Sep 2012, 21:10 |
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wtelecom
Joined: 24 Apr 2012, 10:46
Posts: 15
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Hi everyone,
good news you're working on the real SPI.
For everyone is interested i've been facing one problem with the bit-banging method after many days of SD work. The CS signal becomes useless after many uses, I've changed the CS pin to other gpios and the result after a few days is the same.
I don't really know if this is a problem with my SD card, It doesn't seem as i've tried the sd in many devices and it worked everywhere else.
Finally I am using an inverter (MOSFET) to the CS signal to electrically isolate the GPIO pin from the card. I also had to change the source of the mmc driver to negate the signal.
So far so good.
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| 05 Sep 2012, 14:30 |
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schueler-maroldt
Joined: 03 Sep 2012, 16:54
Posts: 6
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Hi, here is my MMC-Hardware with Micro-SD, wired with the SD-adapter for the Carambola development Board.
IMG_0079.JPG [ 48.09 KiB | Viewed 23648 times ]
Attachments:
IMG_0080.JPG [ 35.31 KiB | Viewed 23648 times ]
_________________
regards Joerg
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| 13 Sep 2012, 16:55 |
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sidhant
Joined: 22 Jun 2012, 07:21
Posts: 11
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| 13 Sep 2012, 16:59 |
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honda4life
Joined: 11 Jun 2013, 17:06
Posts: 1
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still no results? it's holding me back to buy a carambola2
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| 11 Jun 2013, 17:20 |
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valent
Joined: 18 Nov 2013, 18:44
Posts: 54
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I got SD Card to work on Carambola2 with bitbanging SPI via this tutorial: http://wiki.openwrt.org/doc/howto/mmc_over_gpioBut some crazy russian got real SPI to work on Carambola2 ! Check it out: http://wiki.openwrt.org/ru/toh/tp-link/ ... p.mmc.hack
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| 09 Jul 2014, 19:54 |
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valent
Joined: 18 Nov 2013, 18:44
Posts: 54
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| 12 Aug 2014, 15:00 |
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valent
Joined: 18 Nov 2013, 18:44
Posts: 54
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| 18 Aug 2014, 13:11 |
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