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alexh wrote:jotego wrote:I have some YM2612 chips to take measurement but I do not have a board built for it.
The author of that VHDL "sauraen" makes YM2612 boards.
https://www.youtube.com/watch?v=1nM5-QfIv_c
jotego wrote:Sound update 29-Jan-2017
I found out this week the correct way of calculating FM feedback combining the information Sauraen got from inspecting the die and the data I had collected from YM2151. Now I can make an operator without hacks. By hacks I mean that in JT51 I had to write some nasty verilog lines to fit the output to the original. JT12 is going to have a much cleaner implementation, with a smaller area footprint.
I think I will have the operator fully working with FM feedback during this coming week. That is the second milestone.
Coming milestones:
-FM feedback in operator and channel accumulator
-Phase generator
-Envelope generator
-Register interface and timers
-PCM output and noise
-Testing
-Release
It will probably take about a week to complete each one of them as I have to work on this on my spare time. Bear with me.
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