Spartan 3AN Dev board UART

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Spartan 3AN Dev board UART

Postby mpalladino » Tue Apr 27, 2010 2:42 pm


I'm trying to figure out how to get a UART working on the SPARTAN 3AN development board. Ultimately I'd like to use hyperterminal to send a character to the fpga and have the fpga echo it back to hyperterminal so I see it again on my screen. Looking in Starter Kit User Guide there isn't any information on UART stuff. I also looked online and didn't find too much there either.

Does anyone know the steps I would need to take to get this thing up and running? I've already been able to program the FPGA and have it do very simple things like turn on an LED, blink an LED, turn on an LED when I throw a switch...I know...very simple stuff

If I'm over my head let me know what else I need to look at before I head down this road. I don't want to waste anyones time and really want to know this stuff.


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Joined: Tue Apr 27, 2010 2:39 pm

Postby elpuri » Wed Apr 28, 2010 3:14 pm

There is no hardware UART on your board (if it's this one ... /ug334.pdf). It has a voltage translator, but you need to implement the actual UART yourself with the FPGA.

See the UART design tutorial on this site.
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