my boxing timer

[hoops2006]

My boxing timer has been working fine on a 16f84a. I have changed to a 16f628a and have had a headache ever since. Managed to sort most of the problems out. However both my green and red leds go on at the same time if my round switch is low. works fine when my round switch is high. so i cant switch between rounds. i have looked at the data manual and have found no reason for the porta bits to affect each other like this.
Does any one have any ideas????

[skimask]

My boxing timer has been working fine on a 16f84a. I have changed to a 16f628a and have had a headache ever since. Managed to sort most of the problems out. However both my green and red leds go on at the same time if my round switch is low. works fine when my round switch is high. so i cant switch between rounds. i have looked at the data manual and have found no reason for the porta bits to affect each other like this.
Does any one have any ideas????

ANSEL, CMCON, any of those applicable?

[hoops2006]

To try and fault find i have stuck leds on my outputs porta 0 1 2. And wrote a program to light them one at a time with a 1sec delay. Even this doesnt work. One of the leds doesnt light one stays on at half brightness and the other led does what it should. Can anyone see why this program isnt working.


@ DEVICE pic16F628A, INTRC_OSC_NOCLKOUT
' System Clock Options
@ DEVICE pic16F628A, WDT_ON
' Watchdog Timer
@ DEVICE pic16F628A, PWRT_ON
' Power-On Timer
@ DEVICE pic16F628A, MCLR_OFF
' Master Clear Options (Internal)
@ DEVICE pic16F628A, BOD_ON
' Brown-Out Detect
@ DEVICE pic16F628A, LVP_OFF
' Low-Voltage Programming
@ DEVICE pic16F628A, CPD_ON
' Data Memory Code Protect
@ DEVICE pic16F628A, PROTECT_ON
' Program Code Protection

cmcon = 7

DEFINE OSC 4

TRISB= 00000000 'PORTB=OUTPUT
TRISA= 00000000 'PORTA=output




main:
PORTA.0 = 1
Pause 1000
PORTA.0 = 0
PORTA.1 = 1
Pause 1000
PORTA.1 = 0
PORTA.2 = 1
Pause 1000
PORTA.2 = 0
GoTo main
End

[skimask]

To try and fault find i have stuck leds on my outputs porta 0 1 2. And wrote a program to light them one at a time with a 1sec delay. Even this doesnt work. One of the leds doesnt light one stays on at half brightness and the other led does what it should. Can anyone see why this program isnt working.

@ DEVICE pic16F628A, INTRC_OSC_NOCLKOUT
@ DEVICE pic16F628A, WDT_ON
@ DEVICE pic16F628A, PWRT_ON
@ DEVICE pic16F628A, MCLR_OFF
@ DEVICE pic16F628A, BOD_ON
@ DEVICE pic16F628A, LVP_OFF
@ DEVICE pic16F628A, CPD_ON
@ DEVICE pic16F628A, PROTECT_ON
DEFINE OSC 4
cmcon=7:TRISB=0:TRISA= 0
main:
PORTA.0 = 1 : Pause 1000 : PORTA.0 = 0 : PORTA.1 = 1 : Pause 1000
PORTA.1 = 0 : PORTA.2 = 1 : Pause 1000 : PORTA.2 = 0 : GoTo main
End

Got a pullup on MCLR? (i know you've got mclr_off)
Try an external oscillator and switch your clock modes.
Turn off your watchdog timer.
Just ideas...

[hoops2006]

Finally got my boxing timer completed. Now i want to have a seven segemt display counting down the round and rest time. I have seen the schematics for multiplexing the displays, so no problems there. But as a complete proggraming novice with only one little project under my belt i havent a clue how to code it. Could any of you experience people give me a few pointers. Would be greatly appreciated.