Andrew Kilpatrick wrote:

>On Thu, Apr 08, 2004 at 04:43:10PM +1000, David Duffy wrote:
>
>
>>It's not as simple as that. You have to generate the DMX other timing
>>as well. eg. Break, MAB, etc. The DMX stream is not just a series of
>>bytes @ 250KB. The timing is what syncs the receivers to the stream.
>>David...
>>
>>
>
>I have made a successful transmitter with a PIC that generates its
>own data (from potentiometers) using the built-in USART. I simply turn
>off the USART to generate the break, although some UARTs are apparently
>capable of making breaks in hardware. A DMX protocol analyser though
>thinks that my method is 100% fine with respect to timing.
>
>

OK, but then it's not a serial baud rate converter is it. What you're
really making is a DMX dongle.You want to accept commands @
say 115,200 and spit out continuous DMX data. Sort of like dual
port RAM - the commands poke values into it and a background
task uses the same RAM for the DMX values to transmit.
David...

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