Options Compiler LCD

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With this option you can select the port pins for the LCD display.

This only applies to the LCD statements when used in 4-bit mode and if the LCD display is connected to the port pins.

You can also choose the port pins with the CONFIG LCDPIN statement.




In the 4-bit mode, only the highest nibble of the data lines is used.

To spare a pin for the R/W pin, reading from the LCD is not supported and you must connect the R/W line to ground. See additional hardware for more info.


You can also use the LCD statements in the data bus mode.


Some LCD displays needs the upper 3 bits to be set high. So when you have this kind of display you must select this option. When you select this option the LCD designer will set the upper 3 bits high when the DEFLCDCHAR statement is generated.