EasyPIC5 recommended project sources

[malc-c]

So far I have been able to run most ME stuff on the EP5, that is until I tried the first LCD example. SO far I have not been able to get either board to display a thing.

DEFINE      LCD_DREG    PORTD
DEFINE      LCD_RSREG   PORTE
DEFINE      LCD_RSBIT   0
DEFINE      LCD_EREG    PORTE
DEFINE      LCD_EBIT    1
DEFINE      LCD_RWREG   PORTE
DEFINE      LCD_RWBIT   2
DEFINE      LCD_BITS    8
DEFINE      LCD_LINES   2
DEFINE      LCD_COMMANDUS   2000
DEFINE      LCD_DATAUS      20

That's because the LCD on the EP5 uses port B not port E. Try

DEFINE LCD_DREG PORTB
DEFINE LCD_DBIT 0
DEFINE LCD_RSREG PORTB
DEFINE LCD_RSBIT 4
DEFINE LCD_EREG PORTB
DEFINE LCD_EBIT 5
DEFINE LCD_BITS 4
DEFINE LCD_LINES 2
DEFINE LCD_COMMANDUS 2000
DEFINE LCD_DATAUS 50

This works with the 2 x 16 LCD that MikroElectronica supply with the EP5

[Acetronics2]

That's because the LCD on the EP5 uses port B not port E. Try

DEFINE LCD_DREG PORTB
DEFINE LCD_DBIT 0
DEFINE LCD_RSREG PORTB
DEFINE LCD_RSBIT 4
DEFINE LCD_EREG PORTB
DEFINE LCD_EBIT 5
DEFINE LCD_BITS 4
DEFINE LCD_LINES 2
DEFINE LCD_COMMANDUS 2000
DEFINE LCD_DATAUS 50

This works with the 2 x 16 LCD that MikroElectronica supply with the EP5

Hi, MW

those lines work fine with all the "classical" HD 44780 compatible devices ...
may be some special characters are different ... but it works !

Now, for learning you can download an old EPE paper about "intelligent LCDs" (Feb / March 1997 issue )

Alain

[manwolf]

Its aaaamazing but it you never load the program on the chip the LCD stays blank. DUH!!!

I loaded my LED program instead of LCD. So the LEDS were blinking, but the LCD was blank. With the LEDS blinking I figured the problem was either in my code or the LCD.

Mal-c>
I was working with the ME board, but thanks for the tip. EP5 next. the first time I tried, I used PORTA figured I had the wrong one, so I decided to get it working on the ME board first to make sure my code was ok.

[mister_e]

Try their demo .HEX files.. if it doesn't work.. it's a good sign you have something else wrong... easy enough to screw some jumper settings in their board... same rules if you forgot to adjust the contrast pot...