[sdiy] Beginner questions

Ian Fritz ijfritz at earthlink.net
Thu Feb 27 03:13:28 CET 2003


Richard --

At 11:44 AM 2/24/2003, Richard Wentk wrote:
>At 11:10 24/02/2003 -0700, Ian Fritz wrote:
>>I got the code by simply asking.  It uses software to directly drive the 
>>MIDI output through an I/O pin.
>
>Interesting idea. Isn't it rather dangerous though? Is there a continuous 
>31.25kHz polling of the input line and dumping of the output line, or is 
>it cleverer than that? How does it sync with the start/stop bits?

You will need to look at the code to get the details. Since I decided to go 
with a PIC having a built-in USART,  I didn't get into all the details of 
the MIDIBOX code.

>>An easier option is to use a microcontroller with a dedicated USART. But 
>>the code illustrates many interesting techniques.
>
>Usually safer too. If perhaps not cheaper.

A little more expensive, but still not too bad.

   Ian



More information about the Synth-diy mailing list