Harold,

I use 18F4550  20 mhz with PLL enabled that internal clock is 48 mhz.
Faster crystal will make more noise. I didn't use 24HJ256GP610 so 
I do not know any thing about it for now.

Andre




-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf
Of Harold Hallikainen
Sent: Friday, January 11, 2008 10:25 AM
To: Microcontroller discussion list - Public.
Subject: RE: [PIC] Works in debug, not without debug!





>
> Harold,
>
> I just looked @ FT245 usb board now I am wondering if there is
> any reason to use that board if there is 18F4550 usb built in.
> I have been using this chip over 6 months now. All I can tell is
> it does fantastic job no external component needed.
> To me any external components will add more work for you.
>
> Can I see your schematic ?
>
> thanks
>
> Andre


The 18F is not fast enough for this application. I'm using a 24HJ256GP610
running at 40MIPS. I'll consider the 18F4550 for future stuff, but our
speed requirements always seem to be increasing.

Thanks!

Harold

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