Close

SD Card emulation, first success

A project log for DIPSY

DIY System on Chip based on FPGA, priced below 5 USD

Antti LukatsAntti Lukats 09/28/2015 at 18:371 Comment

Using DIPSY-EPT Emulator Programmer, but the HDL code should equally well work on DIPSY too. Just got the basic SD card working, Windows does show that there is new drive with README.TXT on it..

There is still nice piece of work to optimize the HDL code to be bit smaller and then need add functions to REFLASH the SPI, and to issue WARM BOOT.

Then a DIPSY with spi flash connected "as SD card" would be full self contained FPGA dev system, connect "AS sd card" reflash the second image, and "restart hardware with new hard app" !

CMD55 and response seen in LA, while README.txt is read out from ICE FPGA BLOCK RAM..

Discussions

Yann Guidon / YGDES wrote 09/28/2015 at 18:46 point

Magic !!!

  Are you sure? yes | no