Hi,

I've been looking at app notes and data sheets, but I haven't found how to
do this.

Basically I've got a 16F62x which has been transmitting data with the
USART, and has been stopped (due to a bus conflict), and then later it
needs to try again.

When this happens, it needs to somehow empty TXREG of the data from the
previous aborted transmission. Otherwise the first byte sent will be one of
those that it didn't get to send last time. The internal TSR is apparently
emptied at some point, probably when TXEN is cleared, but I can't find hard
information about this either. In practice, it is always only 1 extra byte
lingering, and it corresponds to whatever was in TXREG when the
transmission was aborted.

So, does anyone know how discard the contents of TXREG and force it into
the 'empty' state (where TXIF gets set etc.)?

I've tried many things already, e.g. turning the USART off and on, but that
doesn't do it.

Thanks,
Thomas.

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        9876543210  Magic tab-o-meter.          http://www.armware.dk/
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