M. Adam Davis schrieb: > I don't know what speed you're running at, but if you're using a > crystal faster than 4MHz you should put it closer to the chip - the > TQFP adaptor lines might be too long and introduce too much noise. > > Have you already checked each line for shorts and opens? > > -Adam > > On 9/5/08, lk wrote: > = >> Hello, >> >> i am wondering if my selfmade TQFP 80 adapter is working well. >> Maybe You can just look at the picture and tell me if it is basically >> possible to get it to work with such an adapter. >> Of course there are no hazards! >> I ve red that the oscillator should be as near to the OSC pins as >> possible. Using that adapter it cant be close at all... >> I already have run a simple LED blinking program on that chip, but am >> not sure if everything worked well. >> Is there generally the possibility of crosstalk et cetera? >> There are not much information i am giving You, but maybe You can give >> me some advise by just looking at the picture. >> >> http://home.arcor.de/luka5/DSC06977.JPG >> >> Regards >> Lukas >> >> >> PS:I hope that this message will not appear twice or more often at the >> piclist. I tried several times to post but without any result... >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> >> = > > > = Yes i have checked everything for shorts and opens.The device is running = at 20MHz. It will be difficult to put the crystal closer to the chip.. Maybe a smd = one would fit. I will also try to add the bypass cap (100n) ? and widen the vdd/vcc=B4s. Regards Lukas -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist