spotlite
- 21st January 2012, 08:09
Hi,
I have issues to run LCD (HITACHI based) with 18F2520.
The LCD data are connected to PORT.A0...A3
Enable & RS -> PORTA.4 & PORTA.5
When trying to write, nothing happens.
No impulses are read via oscilloscope on data pins, I see pulses only on E and RS pins.
How to initialize the PORTA to work correct as digital in/out?
I have ADCON1=7 included.
What else to initialize?
Also tried with CMCON=7, but nothing changes!
Also have 10k pull-up resistors on PORTA.4 & PORTA.5
Please advice?
THX
I have issues to run LCD (HITACHI based) with 18F2520.
The LCD data are connected to PORT.A0...A3
Enable & RS -> PORTA.4 & PORTA.5
When trying to write, nothing happens.
No impulses are read via oscilloscope on data pins, I see pulses only on E and RS pins.
How to initialize the PORTA to work correct as digital in/out?
I have ADCON1=7 included.
What else to initialize?
Also tried with CMCON=7, but nothing changes!
Also have 10k pull-up resistors on PORTA.4 & PORTA.5
Please advice?
THX