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Posted April 19, 2019
Thanks for the response ...
I managed to figure it out eventually ... It's an HDL only project. Using Chipscope I was seeing that I could write different data (up/down count, etc) starting from address 0 and read that back correctly, but every time I opened the same SD on PC it wanted to format it. I was messing with the file system (which I don't need actually).
HxD allows you to "opendisk" regardless of the file system, and also raw disk edit ... I found it on an MIT course. It's does the job.
Posted April 17, 2019
Edited April 17, 2019 by dcc
I am using a Nexys 4 DDR board and want to use the microSD as an external memory to read from. right now:
I have an HDL code, and I am able to write to and then read-back from the SD inside the HDL correctly, but have no idea how a data file on my computer can be turned into something on SD that I can read properly in FPGA
Thanks in advance.
Posted August 19, 2017
My design is HDL only with no processor. I have large ROMs in the project and need to change the COE files all the time. IS there a way to do this without having to regenerate the core and compile from scratch?? Each change costs me 40 minutes.
I know with Data2MEM you can do that without having to regenerate the core and compile the design from scratch (IF you have a processor), but that does not apply to my design.
Thanks in advance for your help.
Posted April 4, 2017
@D@n many Thanks for the comprehensive explanation
Posted March 31, 2017
@jpeyron @D@n thanks ... Currently I am using pmodmic3 and a custom made board attached to the shield connector (12 bits parallel DAC). It's a pure RTL design, and I have been feeding the DAC with FPGA's ROMs and logging the data with ILA chipscope easily. I need a bigger memory to feed the DAC. and log the data back.(feeding the 12 bit DAC @ 400K sample/sec is more important)
I do prefer RTL and staying away from SDK, but not sure how to initialize the memory outside of SDK.
appreciate your comments.
Posted March 30, 2017
Thanks @D@n ... very helpful.
Hi, I have a simple design. In an ARTY board, I need to read from ddr3 initialized in SDK and write to pmod constantly in a loop. What is the recommended way to do this? Do I need to use the DMA? Is there a reference design for ARTY board?
Posted March 29, 2017
@D@n ... thanks again ... the data is going to a DAC PMOD board ... longer the better, and UART seems the easiest way, if the rate can be achieved.
@D@nThanks a lot. ~1MB is what I am looking for ... I need to send a long stream of data to ARTY, on FPGA side I guess I just need to fix the clk, on PC side though, I am using tera term VT, do I just increase the Baud?
Does anyone know ARTY's maximum data rate using the USB-UART?