HOW CAN I LET NEXYS4 DDR TO READ TXT FILE???

[Q25P]

Hi all,

I am working on to make pulse generator with nexys 4 ddr

I made pulses by MATLAB and made it txt file

And then I want to let the board to read the txt file by Micros SD slot and then make pulses

Is it possible? and if it is, how can I make it?
 

So the question is, 

   How can I use MicroSD Slot to read sd card and use the txt file to make pulse with NEXYS4 DDR board??

[dpaul]

Quote

How can I use MicroSD Slot to read sd card and use the txt file to make pulse with NEXYS4 DDR board??

I know that I am not answering your main Q, but perhaps easier to do...

Have your data stored in a BRAM, populate the BRAM contents using a .coe file (or just initiate it in your RTL).

Then make your design read this BRAM and generate the pulses.

[jpeyron]

Hi @Q25P,

It would be much easier of a task to add a .coe file as @dpaul suggested. To use the SD card slot you should have the board file installed. Then use the Pmod SD IP Core here in a microblaze project. Here is a YouTube tutorial/project that uses the Pmod SD IP Core that should be helpful with reading files from the sd card.

thank you,

Jon