On 4/10/2019 9:28 PM, justin White wrote:
> I have a bunch of info to try to wade through before I take that side 
> project on but the hardware side is what I want to get a grip on first. I 
> see that it looks like the common use for a DE0 is to use mksoc which is 
> based on Mesa firmware and there's a DB25 interface board. Is there any 
> pinout info of the board itself with this firmware? I'd likely whip up my 
> own interface board for the GPIO I need.

The DB25 jacks match the standard Mesa pinout.

The DE0-Nano with my DE0-Nano_DB25 adapter board basically looks like
one or two Mesa 5i25's (you can use one or two adapter boards for a
total of 2 or 4 DB25 ports).  As with the Mesa cards, you can use
different FPGA bit files to provide different functionality depending
on your requirements and whether or not you are using any of the Mesa
daughtercards (eg: 7i76, 7i77, 7i85, etc).

There are several existing FPGA configurations available:

https://github.com/machinekit/mksocfpga/tree/master/HW/hm2/config/DE0_Nano_SoC_DB25

...and it's pretty easy to make new ones if you need something customized.

-- 
Charles Steinkuehler
[email protected]

-- 
website: http://www.machinekit.io blog: http://blog.machinekit.io github: 
https://github.com/machinekit
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