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[Reply #15 on:]

if it makes you guys feel better, I got a hold of some SF resonators and OMG they are crap, I have constant upload errors at a reasonable 19200 baud, I cant say they are off by 20% per day, but they sure as heck are not spec

but hey when you buy the cheapest garbage from china your often lucky if it works at all, luckily I got them for free so I didnt waste money on them.

[Reply #16 on:]

if it makes you guys feel better, I got a hold of some SF resonators and OMG they are crap, I have constant upload errors at a reasonable 19200 baud, I cant say they are off by 20% per day, but they sure as heck are not spec

but hey when you buy the cheapest garbage from china your often lucky if it works at all, luckily I got them for free so I didnt waste money on them.

It may be that they are crap, but are you sure they are not 16384MHz 16.384MHz resonators rather than 16MHz?

[Reply #17 on:]

16384MHz

16384kHz, surely?

[Reply #18 on:]

Yes, I missed out the decimal point.

[Reply #19 on:]

Still less than 3% though.

[Reply #20 on:]

True, but according to http://www.maxim-ic.com/app-notes/index.mvp/id/2141 there are scenarios in which a clock mismatch of more than 2% can cause problems.