Posted by Brian You must start from a high state to get the correct start bit detection in the UART. All the MAB does is make sure a UART is ready to recieve a correct byte of data. The most reliable way is as you've done, wait for a framing error, and the next byte will be the start code.
on 6/30/2005, 3:59 pm, in reply to "MAB issue"
The MAB is needed with any processor/uart the next valid character cannot start until the line has been taken high.
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