Hi,

I have recently started a hobby project using the PIC24FJ128GB202 (in a=20
28-pin SOIC package) mainly for the built in USB transceiver and am=20
having a problem with the HD44780U I am using...

Bear in mind the board has not been etched yet, and this is purely for=20
my own education as I have spare pins that I can use as a work around.

I have the control lines (E RW and RS) connected to RA4, RB4 and RB5 in=20
the data sheet these are pins 12, 11 and 14 respectively. However,=20
trying to set and clear the necessary TRIS and LAT bits for these pins=20
causes compile errors with XC16. I looked at the relevant header file=20
and discovered that the bits were missing from the bitfields, so I=20
understand why the compile is failing, but that brought up the question=20
why are they missing?

Could this be a copy and paste error? Are there reasons not to use these=20
pins?
--=20
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