A simple starting Point

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So I flashed a blinky onto my pico-ice board using SpinalHDL and apio. Hurrah. Now I am trying to synthesize the J1SC for the Pico-Ice board. Oh boy, it is quite tricky. There is a lot of stuff in there.

What Mecrisp did is to creae a directory skeletalstructure which just had the core parts in it. It was easy to get it up and running, and then one could add things back in one at a time.

Your code has LED arrays, button arrays, a uart led, a pwm led, interrupts, bridges, a clock lock, and who knows what else.

It takes a while to read all of the code, figure out what they all do, and figure out how to turn them off.

The problem is that it is lots of changes, and then at the end of the day, when everything is not working, I will not know what I broke. The ideal is to make it easy to get the first version working on an FPGA.

As a software developer, I would always make lots of changes and then debug it. As an FPGA developer, they repeatedly instruct us to make one change at a time, get it to work, and then make the next change.

I am not asking that you do anything, I am just recording what might make life easier for those who follow in my footsteps.