Hi all,
I've just been reading through a few other posts to see if I can sort myself out.... I've some pic12f675's lying about that I wanted to use for a project that uses the comparator, I remember I gave up on them a few years ago when I was using a Picstart plus. I've now been using a pickit2 which is about a thousand times better.
Anyway I dug out the 12f675's and wrote a very short programme to flash a LED on gpio,5 with the pickit2 powering the chip I got my led to flash.
I then added power via my bench supply, the led still flashed so I went about programming it for my application (ir beam break). It was fine now nothing, I've gone back to the start again and none of the four I have will work?
Could I have cooked them previously? Experiance has so far told me pics are quite tough. It appears to me as if they arn't starting up.
Details; Circuit, very simple, decoupling cap, 5v regulated supply
One resistor, one LED
ICP header.
Configuration; Internal osc, no clock out
Powerup timer on
WDT off
Brown out off
MCLR off
Code protect off
Has anyone else had trouble with these? Any ideas or shall I just buy new ones!
Thanks Geoff
I've just been reading through a few other posts to see if I can sort myself out.... I've some pic12f675's lying about that I wanted to use for a project that uses the comparator, I remember I gave up on them a few years ago when I was using a Picstart plus. I've now been using a pickit2 which is about a thousand times better.
Anyway I dug out the 12f675's and wrote a very short programme to flash a LED on gpio,5 with the pickit2 powering the chip I got my led to flash.
I then added power via my bench supply, the led still flashed so I went about programming it for my application (ir beam break). It was fine now nothing, I've gone back to the start again and none of the four I have will work?
Could I have cooked them previously? Experiance has so far told me pics are quite tough. It appears to me as if they arn't starting up.
Details; Circuit, very simple, decoupling cap, 5v regulated supply
One resistor, one LED
ICP header.
Configuration; Internal osc, no clock out
Powerup timer on
WDT off
Brown out off
MCLR off
Code protect off
Has anyone else had trouble with these? Any ideas or shall I just buy new ones!
Thanks Geoff