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Codevision C for AVR - interrupt driven TX serial


marke

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I have been working on a little project using the Codevision AVR version 1.23.7 standard and have a number of interrupts running. I have found that I can run the RX under interrupt, but not the TX. I get into all sorts of trouble with the TX running under interrupt. As the code was all set up using the project, and I wait till the TX buffer is empty before sending any more data, I don't think that I am doing anything wrong. I think that I can live with running it polled, but would be nice to know the answer.
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OK, found that the problem was tied up with the interrupts being enabled incorrectly during the transmit serial routine. Thanks to Ed for the advice and help.

Regards,

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