18F2550 and Blink Led

[nuno106]

Hello Everyone,

I'm trying to configure a basic program into a 18F2550, but with no luck.

I'm testing the code with a simulator, but nothing happens...

Anyone could help?


DEFINE OSC 8

@ __CONFIG _CONFIG1L, _PLLDIV_2_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
@ __CONFIG _CONFIG1H, _FOSC_HS_1H
@ __CONFIG _CONFIG2H, _WDT_OFF_2H & _WDTPS_512_2H
@ __CONFIG _CONFIG2L, _PWRT_OFF_2L & _VREGEN_OFF_2L
@ __CONFIG _CONFIG3H, _MCLRE_ON_3H
@ __CONFIG _CONFIG4L, _LVP_ON_4L & _XINST_ON_4L

PORTA = %00000000 ' Turn off all PORTA
PORTB = %00000000 ' Turn off all PORTB
ADCON1 = %01111000
ADCON2 = %10000111
TRISA = %11100111
TRISB = %11000011

loop1:
LATB.2 = 1
pause 100
LATB.2 = 0
PAUSE 100
goto loop1
end


Thanks,
Nuno

[mackrackit]

Try

@ __CONFIG   _CONFIG1L, _PLLDIV_1_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
@ __CONFIG   _CONFIG1H, _FOSC_INTOSCIO_EC_1H

[nuno106]

Thanks mackrackit, I try it but the same result, the pins of the Pic doesn't change state. The oscilator is a 8MHz, MCSP 3.0.0.5 Pic Basic Pro 2.60A.

Any idea??

Thanks,
Nuno

[mackrackit]

The below works using the internal OSC for a test.
' PIC18F2550
DEFINE OSC 8
ASM
__CONFIG _CONFIG1L, _PLLDIV_1_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
__CONFIG _CONFIG1H, _FOSC_INTOSCIO_EC_1H
__CONFIG _CONFIG2H, _WDT_OFF_2H & _WDTPS_512_2H
__CONFIG _CONFIG3H, _PBADEN_OFF_3H & _MCLRE_OFF_3H
__CONFIG _CONFIG4L, _LVP_OFF_4L
ENDASM

ADCON1 = %00001111
CMCON = 7
OSCCON = %01110000
TRISB = %00000000
START

LATB.2 = 1
PAUSE 250
LATB.2 = 0
PAUSE 250
GOTO START

[nuno106]

Hello,

Compiling it, gives me some Warnings "Found Directive in column 1.(_CONFIG), but it compile. At the oshon simulator, the same result, the pins of the microcontroller doesn't change at all...

Thanks,
Nuno

[mackrackit]

I do not use simulators, I can not help you there.

For the warning, SPACE the
__CONFIG
over by one.