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Altera_Forum
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11 years ago

generate waveform output on FPGA from file

I have a testbench that generates inputs to my module. It works in simulation. What I want to do is take the waveform of these inputs (5 of them, each is just 1 bit) and put those an on FPGA that out...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

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Thanks. I was thinking the same thing as a possibility. I have around 135k samples. So I thought I could make a big counter that addresses the ROM, to spit out the values of the waveform at each clock cycle. I guess that's what you mean right?

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Yes. But with 135k samples you may have to get tricky. The Megawizard will only generate a maximum size rom of 64 K samples, (65535 word), so you will need to have a couple of these to make it work. The final limiting factor is the number of block rams you have in the device however.

Pete