Weird issue with Lab X1

[mackrackit]

Yup, fuse are very important

You can modify the *.inc file or set them in code.
http://www.picbasic.co.uk/forum/showthread.php?t=543

[Demon]

That's what I'm trying to do, thanks.

I don't like changing the include, in case I have different needs in another program.

So I tried this:

@ __config _CP_OFF & _DEBUG_OFF & _WRT_ENABLE_ON & _CPD_ON & _LVP_ON & _BODEN_ON & _PWRTE_ON & _WDT_ON & _XT_OSC


But it's doing the same thing, the speed goes crazy when I reconnect.

Not sure if I set the switches properly though.

EDIT: I list all switches, that way I can easily see what is available without going back to datasheet, even if I use default values.

[mackrackit]

Might want to turn LVP off, I do not think you are using it.

I keep going back to hat fancy OSC thing. The 877 is pretty straight forward. Has to be the OSC acting up to cause a change in speed. Power cycling causing a clitch? And somehow the programmer is resetting it?

[Demon]

LVP OFF is the first thing I tried, no diffference.

[Demon]

I unplug the USB cable to the programmer or disconnect the programmer completely from the Lab X1, touch the oscillator and the timing returns to normal speed!

Ok, so what can be the causes of something like this? This goes into capacitance stuff and that's over my head.

[mackrackit]

Being I just learned about that OSC and have not pulled the data sheet I do not know.

But...

I will make an assumption that this board was in storage since you say you have been out of this for awhile. Look for loose/broken connections and corrosion/tin whiskers.

Maybe put it under a heat lamp for a bit.

[Demon]

Can't see anything wrong with it. I emailed MeLabs support, hopefully they can figure this out.

I paid over $200 for this puppy, I finally get around to using it and it's acting funky.

At least the USB programmer was a nice step up from the serial programmer, but darn, this hobby doesn't come cheap.