Been banging my head over a problem with the EUSART missing chars =20
coming into a PIC18F24K22.

Quick overview -- I am sitting in a busy loop waiting for chars with =20
RC1IF, and processing anything that comes in right away.  I do have a =20
serial-receive interrupt routine that gets used later, but it's =20
disabled for now (PIE1bits.RC1IE =3D 0).  But it seems to be missing =20
about 5% of the incoming data, which I've verified is on the line with =20
a logic analyzer.

After much ado, it seems that my serial-receive interrupt is being =20
called even though RX1IE is not set.  I've verified that PIE1 is also =20
being set to anything where this interrupt can be accidentally =20
enabled.  I've temporarily worked around it by setting my own =20
variable/flag, and telling the receive interrupt to check for that also.

Anyone else run into this, or is there something else I may be missing =20
here?  IE: Is this really a bug, or will this turn out to be a "Doh!" =20
moment?

Cheers,
-Neil.


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