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I took a short hiatus on this project but I am resuming it again this week. I found various webinars on Tcl and scripting and I've gone through them.
One thing that is still unclear to me: Tcl seems to give me the tools to fill the on board memory with my data, but how do I set up the FIFO to read in at the correct rate and out to the pin?
Happy holidays
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You write a state machine and then control registers for the state machine. For example, here's what I have for testing SERDES channels;
1) An Avalon-MM system containing a JTAG-to-Avalon-MM master, various blocks of control registers, and pattern RAM blocks.
2) The pattern RAM is dual ported; with one side having an Avalon-MM slave interface, the other side connects to the serializer state machine.
3) The serializer state machine reads a word from SRAM and writes it to the SERDES channels. This state machine is enabled via a control register bit.
You could do something similar.
Cheers,
Dave
Honored Contributor
