Hello, I have this idea that I think should work, but might have some problems... The first "A" (Mega8) would do some specialized tasks, and it currently talks to a PC through it's serial port. The PC issues commands, and gets results. I want to replace the PC with a second "B" controller (I'm thinking Mega324 so I can connect one serial to "A", and another serial to a PC if needs be). Would I have any problems if I clock both from the same (external) clock source? I'm also thinking I may need faster speed, so I might connect one 8 bit port from "A" to "B" to transmit 8 bits at a time... and maybe use another 2 bits (interrupt input?) of another port for "Data Ready" and "ACK". Am I missing something? The SPI of "A" is already used and I'd rather not share it even if it would be possible. If SPI would be much better... I might chose another controller that has 2 SPI ports if such a thing exists...? Thank you, Cat _________________________________________________________________ http://local.live.com/?mkt=en-ca/?v=2&cid=A6D6BDB4586E357F!420
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Connecting to microcontrollers to the same clock and between them
2007-03-27 by Cat C