Hi Dave, Congratulations! Please do pass the code along. The whole idea behind the PSIM (and the reason I agreed to participate in developement) is the public domain code to run on it. If I make any tweaks or change it into something else, I will of course post it back to everyone. Gary Chang had the idea of using the PSIM with a MIDI sequencer as a control voltage recorder/playback unit. What Subotnick called the "ghost electronics". If it works out, I'll pass it along. --- In SynthModules@yahoogroups.com, "djbrow54" <davebr@e...> wrote: > I have two versions of code running. One is a polled I/O mode which > supports both MIDI input and output. This works just fine. I have > it running in a simple loop-through mode removing the MIDI active > sensing bytes from the stream. > > I also have a version that runs with interrupt driven MIDI input into > a buffer and polled MIDI output. I also have it running in a simple > loop-through mode and it works well but occasionally I get one bad > note. I haven't been able to track it down as I cannot use debug mode > at all with interrupts enabled. I'll have to figure out a way to > determine what is being sent to the synthesizer and see if I can > track it backwards. > > This took a lot more time than it should of. So many items are not > documented well. Thanks to all, especially Grant, who offered > suggestions and insight. > > I still seem to have issues with variables that are bytes. > Manipulating these bytes seem to clobber the bytes next to them. It > all works fine if I make them all words. Anyone else seen this? > > I'll keep playing with this but will post the code if someone else > wants to start messing with it. > > Dave
Message
Re: Interrupt driven MIDI working (almost)
2004-04-12 by grantrichter2001
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