crystal issues?

Spork Frog

I have somewhat strange behavior with my Hydra...

Sometimes, it seems as if the whole thing is working faster or slower of what it should be. I have found that when this happens, if I lightly tap the crystal with my finger, it solves it. I know that the crystal is seated properly.

A few times, when running a few Parallax demos, the clocking settings were wrong (5 MHz, 16x PLL), and I don't think I had this problem before the first time I accidentally did that. Could this have anything to do with it?

One more thing- it seems to be unpredictable when this happens, though it always happens right after a powerup or reset, not while it's running.

AndreL

Some of the demos simply clock it at 40, some at 80, but in all cases all hydras have a 10.000 Mhz crystal. IF you are having clocking issues and when you touch the xtal it works better, simply means you need to pull it out and then give it a good push back in. They simply get loose that's all.

Andre'