ShortBus
- 7th October 2009, 05:26
All I want to do is set every IO pin on the chip to digital out.
ADCON0 = 0 ' no analog >< digital conversions
ADCON1 = 0 ' no analog >< digital conversions
ANSEL = 0 ' no analog inputs
CMCON0 = 7 ' no comparators
TRISA = %0000100' all but RA3 (MCLR) is output
TRISC = 0 ' all outputs on port C
porta = 1
portc = 1
pause 1000
porta = 0
portc = 0
This should blink all of the attached LEDs, however only PORTA.0 and PORTC.0 go high and only one of them goes low when told to. I'm sure I'm forgetting to turn off a feature in a register (or something equally as simple). But I've been studying the datasheet for hours. Any hints? :-\
ADCON0 = 0 ' no analog >< digital conversions
ADCON1 = 0 ' no analog >< digital conversions
ANSEL = 0 ' no analog inputs
CMCON0 = 7 ' no comparators
TRISA = %0000100' all but RA3 (MCLR) is output
TRISC = 0 ' all outputs on port C
porta = 1
portc = 1
pause 1000
porta = 0
portc = 0
This should blink all of the attached LEDs, however only PORTA.0 and PORTC.0 go high and only one of them goes low when told to. I'm sure I'm forgetting to turn off a feature in a register (or something equally as simple). But I've been studying the datasheet for hours. Any hints? :-\