Waylon Cude
7980424dc8
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I think I did some funny math errors so new goal is 8-bit pcm
29 lines
859 B
Markdown
29 lines
859 B
Markdown
## Bugs I Found
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### Audio Buffer
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- Forgot to assign to a delay counter
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### Debouncer
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- Logic was fundamentally wrong
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- Found multiple logic bugs with testbench and then assertions
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### Display Converter
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- Found a typo in a single digit
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### Low Freq Clock Gen
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- Was initially trying to do modulo at max clock speed, failing timing
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### sd_rom
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- ROM was getting totally optimized out and was doing nothing in simulation, and
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didn't show up in synthesized design
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- Timing issues, ROM was one cycle slower than expected, latching takes an extra
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cycle too, had to rework state machines, there are a bonus 2 delay states when
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starting and ending writes
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### PWM
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- major design problems
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- clocked too slow
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- initial goal of 16-bit audio isn't feasible because 100MHz isn't fast enough
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to pwm based on a 16-bit counter, would give a sample rate of 1.5khz
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