Quote from: Raylin on June 09, 2010, 11:06:58 pm

@calcdude84se: You said something about CalcSys's port monitor. Could you explain this process?
How would you edit the values of the port and make it work?

I'll repeat WikiTI. Port 29h will add a delay of so many clock cycles to any instructions involving the LCD, which is the port value divided by 4 (i.e. ignoring bits 0 and 1). See if it works when the port has different values (make sure bits 0 and 1 are 0 on an 83+SE, 1 on an 84+(SE)). So, start with 0F, then try 13, which you get by adding 4, then 17, 1B, 1F, 23, 27, 2B... And so on. What Brandon fears is that even when the port contains FF the delay (63 clock cycles) won't be enough. It's worth a try, though