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Altera_Forum's avatar
Altera_Forum
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13 years ago

DAC with THDB-ADA on DE2-115

Hi there, I'm working with DAC on the daughter board THDB-ADA. The pin assignments are correct, I believe, but the circuit doesn't seem to be working. Here are my waveforms from ModelSim, can so...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

I am so glad that there's someone who are working with this daughter board as well and so nice to share experence with me. So, thank you very much.

This daughter board really confused me a lot.

I am designing an OFDM communication system using DE2-115 FPGA and THDB-ADA daughter board. I thought I can use this daughter board to convert 8 bit parral signal to multi-amplitude annalog signal. But I found the output waveform are not rectangle like. Nowadays, I want to add the ADC in this daughter board to see I can can get the same signal after DAC and ADC. But I am not sure whether it can work.

BTW, I am using Verilog and my circuit knowledge is so poor that I sometimes cannot understand the schimatic.