12F683 - basic code not working

[AvionicsMaster1]

I'm assuming your using PBP3 and to do configs you need to do them like this and both "config" lines need to be in caps. I know PBP2.6 was different but with either version both "config" lines need to be in caps.

#CONFIG
;configuration directives in Assembly Language
#ENDCONFIG

TRISIO on the 12F683 is only 6 bits wide so I'm wondering if you need to change it to TRISIO = %111110. I think when you set the TRISIO and the GPIO as input and low respectively you'll always have a low at GPIO.0. When you set the pin low and told it to wait for a low it did what you told it to do. That is go to the demo subroutine. Since you changed it to =1 you had a state change and the chip could sense that. The reply by Acetronics2 did that by using the ! sign.

Your second take on the subroutine and endif look better.

As usual I'll await for someone to tell I'm wrong.

[Scampy]

I'm assuming your using PBP3 .

Sorry, wrong assumption - using 2.60

Quick question and slightly off topic, but related to this project... I'm using an H-bridge to control the motor as I need it to be bi-directional. I've been experimenting with some NPN and PNP transistors that I had in my hobby box, BC639 and BC640 and have had a small low current motor running from the PIC. However the actual motor I will be using is a 540 type with a 6:1 gearing. Even though it will be running from a 3v supply (separate to the 5v pic supply) my guess is that the current might be too high for the BC639 / 640 transistors. Can anyone advise if using these transistors would be OK for such a motor, or should I use something like the TIP220 transistors ??