Implemented functions for reading the LCD's DDRAM/CGRAM. Which is read
is dependent on the last 'address set' instruction. The functions
implemented are as follows:
Internal use only:
- readLCDDBusByte_
No busy flag (BF) check. Sets RS=RW=1 and the data bus lines as
inputs, reads them regardless of mode and returns the byte read.
Externally accessable:
- readCharFromLCD
- readLCDLine
- readCharsFromLCD
Note: more thorough documentation of the aforementioned functions is
required, though all have been tested and seen to be working.
Additionally, renamed the following for clarity's sake:
enableLCDOutput -> setLCDDBusAsOutputs
disableLCDOutput -> setLCDDBusAsInputs
Signed-off-by: Collin J. Doering <collin.doering@rekahsoft.ca>
Collin J. Doering
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