non-inverting 2400 baud

[cooksydesign]

Well, between the T2400, SerOut vs SerOut2, setting the line high for true data, the problem has been resolved. Before each transmission I put the data line in a high state. Works fine. Thanks again to all for answering.

B

[Melanie]

Winding back to the start of this thread, if your INPUT voltage is too low for a PIC, and it has Comparators, configure it as an Amplifier... you can receive Serial at 9600 Baud at MILIVOLT levels and the Comparator will happilly reconstruct 0-5v (and Invert it or not at your choice) which can then be read by SERIN, DEBUGIN or by a USART. Who needs a MAX232 anyway. A Comparator will do it all for you.

[cooksydesign]

Hey Mel,

Thanks for the additional information. I think it's too late for this project though. I have already spun the boards. My in/outs are on B.4 and B.5 of the 16F628a.

B

[Byte_Butcher]

Winding back to the start of this thread, if your INPUT voltage is too low for a PIC, and it has Comparators, configure it as an Amplifier... you can receive Serial at 9600 Baud at MILIVOLT levels and the Comparator will happilly reconstruct 0-5v (and Invert it or not at your choice) which can then be read by SERIN, DEBUGIN or by a USART. Who needs a MAX232 anyway. A Comparator will do it all for you.

Heh. Now THAT's one of those things I'm gonna try and remember, because SOME day it's bound to come in handy for me!

What a great idea!




steve