Quote Originally Posted by djmachine View Post
Hi I am trying to initialize a CFA2004ATMIJP 20x4 LCD using a Pic18f452 @ 10MHz with PicBasic Pro. After compiling and uploading the hex file the screen stays blank. I have a 10K pot on VO and have it at around 4.2V. The LCD backlight is lit and I have used this code for an 8x2 Optrex LCD with no problems. The only modifications to the code for this LCD are setting the amount of lines to 4 lines instead of 2, and using different DDRAM Addresses such as 0x00, 0x40, 0x14, 0x54 for the LCDOUT commands. Can anyone see where I am going wrong? Thanks!


End
Hi
cannot find any datasheet for your lcd.

but this may help:
PBP supports
LCD modules with a Hitachi 44780 controller or equivalent. These LCDs
usually have a 14- or 16-pin single- or dual-row header at one edge.

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