Strange SerOut Problem

[skimask]

Ok, I'll get my hands on another chip and give that a go.

Well, what I really meant was to give PortB a try.

[masosi]

Well, what I really meant was to give PortB a try.

Ok, will do shortly.

Another thought: Is it a good thing or a bad thing that this power supply doesn't have a ground (earth) to mains??
DC shouldn't have earth, should it?

[skimask]

Ok, will do shortly.

Another thought: Is it a good thing or a bad thing that this power supply doesn't have a ground (earth) to mains??
DC shouldn't have earth, should it?

You mean a ground lug, like the 3rd pin? If so, that's a chassis ground. If something shorts out inside the case of the PSU, the juice returns through that line. I wouldn't worry about it too much in a wall wart type power supply.

[masosi]

You mean a ground lug, like the 3rd pin? If so, that's a chassis ground. If something shorts out inside the case of the PSU, the juice returns through that line. I wouldn't worry about it too much in a wall wart type power supply.

Very good, thanks.

[masosi]

Would it be worth trying a 350W Computer PSU?
Are it's outputs (5VDC & 12VDC) regulated?

[skimask]

Would it be worth trying a 350W Computer PSU?
Are it's outputs (5VDC & 12VDC) regulated?

More trouble than it's worth. Get a NiMH battery pack and a charger. Smaller, more controllable, etc. And those computer PSU's DO require a minimum load and you have to do some trickery to them to get them to work.

[masosi]

More trouble than it's worth. Get a NiMH battery pack and a charger. Smaller, more controllable, etc. And those computer PSU's DO require a minimum load and you have to do some trickery to them to get them to work.

Ok, thanks again.


I can see a LED flash on PORTA.1 and now PORTB.5 when it does SerOut, so I guess the ports are fine.
So if its not timing, not the programming, not the chip, not the COM port and not Hyperterminal - I DON'T KNOW WHAT TO DO!!!