Knowledge Base

OBLCD: Programming housekeeping functions

These instructions fall under the “advanced topic” heading. The LCD driver automatically waits for the LCD if it busy. An advanced programmer could use these instructions to avoid the processor being blocked by the LCD: test the LCD, and if it’s busy go away and do something else, then come back later.

Note: From dialect 16 the OBLCD is fully buffered, so there is no longer any need to worry about it blocking the processor.