Re: Can't use 4MHz on P16C765

Started by Paul James E. October 9, 2003

Yes, it's because of the USB compatiblity issue. If you don't run
at 24Mhz or at 6Mhz with a 4X multiplier, you cannot maintain USB
compatibility. So, therefore, the requirement to run at 6 or 24 Mhz.

Regards,

Jim
> I'm having a problem using the 16C765. I'm currently using a 4MHz
> xtal, but my code won't run correctly on this chip compiling with
> PicBasic Pro. The spec sheet says the chip needs either a 6MHz or
> 24MHz, but my compiler doesn't support 6MHz and I just don't happen to
> have a 24MHz xtal.
>
> So my question is is there a reason why the 16C765 will not run with a
> 4MHz xtal using PicBasic Pro? I'm also using a 16F877A with a 4MHz
> for early development, and it works perfectly. >
>
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I'm having a problem using the 16C765. I'm currently using a 4MHz
xtal, but my code won't run correctly on this chip compiling with
PicBasic Pro. The spec sheet says the chip needs either a 6MHz or
24MHz, but my compiler doesn't support 6MHz and I just don't happen
to have a 24MHz xtal.

So my question is is there a reason why the 16C765 will not run with
a 4MHz xtal using PicBasic Pro? I'm also using a 16F877A with a 4MHz
for early development, and it works perfectly.