Having trouble with flex lcd

[doggitz]

I need help too !!

I am having the exact same trouble.

Using 18F4620

Have modified flex_lcd for following pins

E D5
RS D4
Data D0 - D3

Have tried both lcd and flex_lcd and only get black squares
I know my physical layout is OK as the lcd and chip works perfectly with basic compiler
Here is my program

[temtronic]

Unless you've modified the original flex_lcd.c driver and renamed the pins definitions....to YOUR assignments..

#define ENABLE_PIN D5
#define RS_PIN D4
#define Data4 D0
#define Data5 D1
#define Data6 D2
#define Data7 D3
...

then the driver will use , in the following case,,

PIN_B4 for the LCD_DB4 defines.

// my modified flex_lcd.c
//called test_flex_lcd.c

#define LCD_DB4 PIN_B4
#define LCD_DB5 PIN_B5
#define LCD_DB6 PIN_A1
#define LCD_DB7 PIN_A2

#define LCD_E PIN_B1
#define LCD_RS PIN_B3
#define LCD_RW PIN_B2 //not used !


I'd suggest you copy the original flex_lcd.c to 'my_flex_lcd.c' and then redefine the LCD_... defines to match your pin layout.This way you still have the original to look at if(when) your program fails.It also makes it easy to have several LCD pin layouts for different projects.

hth jay

[Ttelmah]

Also, obvious thing, pin numbers are in the form 'PIN_D5', not 'D5'......

Best Wishes