STM CircleOS forum / Midi input to Primer 2

slimjim · 2010-01-29 10:19:40

I have noticed many people seem to be having trouble with the USART on the Primer 2.
I was hoping to develop a midi input routine for hardware I have connected to the Rx input (pin 18) on the extension connector inside the Primer 2...

Are the issues with the usart such that I should consider abandoning this idea before going any further? It is a lot to learn for me, as I have only before used pic type microcontrollers with picbasic pro to read the serial port on those devices, and from what I have read here, things are a LOT more complicated...

I can't find any projects which attempt to read midi for the Primer 2, so any advice/help would be appreciated.

slimjim · 2010-02-17 22:19:47

No-one has implemented midi input on the Primer 2?

wincent · 2010-02-18 11:18:28

slimjim :
No-one has implemented midi input on the Primer 2?

Hello Jim,

it seems that nobody needed this. But it would be very interesting, especially for myself.
I will not help (not enough time for this), but I am already intrigued.

I think you should probably make a new theme that mentions UART in the title.
Otherwise people see "MIDI" and think "I don't know anything about that" and
do not bother themselves to look into the thread.

You could also search for themes with the UART keyword.

Sincerely yours,
wincent

P.S.: As a suggestion, either you take an extension board with the standard MIDI circuit,
or you might look at the USB MIDI (if it exists; else take USB Serial) example in the ST Lib.

Last edited by wincent (2010-02-18 11:21:59)

slimjim · 2010-02-27 15:59:24

Thanks Wincent,

I already built the extenstion board with optoisolator and connections to the usart and midi connectors, it's just the setting up of the usart and reading it correctly to recieve midi I have a problem with. My software alrady works fine (it's a drum sample player) reading gpio pins but I want to be able to trigger the samples from standard midi hardware. The way the sampler part is working might make it difficult I think, just wanted to know if anyone else had tried it and it seems not so I might stick with what's already working.

-J

mdce · 2010-03-24 15:05:39

I know a little MIDI specification.
I just implemented MIDI on USART2.
But my english is very bad...

# 1 2010-01-29 10:19:40 Midi input to Primer 2

Midi input to Primer 2

# 2 2010-02-17 22:19:47 Midi input to Primer 2

Re: Midi input to Primer 2

# 3 2010-02-18 11:18:28 Midi input to Primer 2

Re: Midi input to Primer 2

slimjim :

# 4 2010-02-27 15:59:24 Midi input to Primer 2

Re: Midi input to Primer 2

# 5 2010-03-24 15:05:39 Midi input to Primer 2

Re: Midi input to Primer 2

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