by ZaM » Tue Dec 22, 2015 3:51 pm
proteus is not realible to run pic code, even LED blinking code cannot run because of timing. if not wiring error, then it crystal, and you cannot use PR8 code on SK40C to test LCD because RS and EN pin use other pin/port. maybe you can use SK40C+LCD with SK40C code, if not found code for pic16f877a, try find in tutorial. One more thing, how do you upload the code to PIC? can you measure the voltage at:
pin 1(release reset button):
pin 1(press reset button):
pin 11:
pin 12:
LCD pin 3 minimum voltage:
LCD pin 3 maximum voltage:
Connectivity LCD pin DB0 with RD0: