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 23722 times ]
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IMG_0080.JPG [ 35.31 KiB | Viewed 23722 times ] |
| 8devices Community https://www.8devices.com/community/ |
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| MMC/SD SPI disk https://www.8devices.com/community/viewtopic.php?f=1&t=32 |
Page 5 of 5 |
| Author: | sidhant [ 28 Aug 2012, 19:12 ] |
| Post subject: | Re: MMC/SD SPI disk |
| Author: | schueler-maroldt [ 03 Sep 2012, 17:11 ] |
| Post subject: | Re: MMC/SD SPI disk |
| Author: | sidhant [ 03 Sep 2012, 21:10 ] |
| Post subject: | Re: MMC/SD SPI disk |
| Author: | wtelecom [ 05 Sep 2012, 14:30 ] |
| Post subject: | Re: MMC/SD SPI disk |
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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| Author: | schueler-maroldt [ 13 Sep 2012, 16:55 ] | ||
| Post subject: | Re: MMC/SD SPI disk | ||
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 23722 times ]
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| Author: | sidhant [ 13 Sep 2012, 16:59 ] |
| Post subject: | Re: MMC/SD SPI disk |
| Author: | honda4life [ 11 Jun 2013, 17:20 ] |
| Post subject: | Re: MMC/SD SPI disk |
still no results? it's holding me back to buy a carambola2 |
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| Author: | valent [ 09 Jul 2014, 19:54 ] |
| Post subject: | Re: MMC/SD SPI disk |
I got SD Card to work on Carambola2 with bitbanging SPI via this tutorial: http://wiki.openwrt.org/doc/howto/mmc_over_gpio But 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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| Author: | valent [ 12 Aug 2014, 15:00 ] |
| Post subject: | Re: MMC/SD SPI disk |
| Author: | valent [ 18 Aug 2014, 13:11 ] |
| Post subject: | Re: MMC/SD SPI disk |
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