Guest helltone Posted December 31, 2010 Report Share Posted December 31, 2010 You probably have a test design for reading data from files in the SD card, no? Would you mind sharing it with us? Link to comment Share on other sites More sharing options...
Jack Gassett Posted January 3, 2011 Report Share Posted January 3, 2011 Hello, I do have a method that I use to test every SD card Wing. It is a sketch that uses the Arduino IDE and the AVR8 processor. I don't have any straight VHDL code at the moment. If you download the latest Arduino IDE there is a full folder under the Examples called "SdFat". It has many examples that all work and I usually use the "SdFatInfo" sketch to test out new SD Wings. Hope that helps, I will also create a task to try and make a VHDL example for the SD card, but I'm not sure how soon I can get that done. I'm up to my ears in manufacturing boards right now. Link to comment Share on other sites More sharing options...
rgeries Posted March 5, 2013 Report Share Posted March 5, 2013 I realize this is a two year old thread. However, here is a straight VHDL code example written by Steven J. Merrifield to read and write raw data onto a SDSC card (via SPI interface). This can be altered to write to a higher capacity SD. http://forums.xilinx.com/t5/Spartan-Family-FPGAs/VHDL-SD-card-interface-using-PmodSD/td-p/207037 Jack did you ever get around to writing your own VHDL code for this? If so would you still be willing to share it? Link to comment Share on other sites More sharing options...
Jack Gassett Posted March 5, 2013 Report Share Posted March 5, 2013 Hello, I never wrote any VHDL for the SD Card but another Papilio user did and wrote a nice forum post about it. Jack. Link to comment Share on other sites More sharing options...
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