simtrac hw

[Peter Stuge]

ml at mail.tsaitgaist.info wrote:
> a hw design

Cool!


> - the AT91SAM7SXXX

I'd use a more modern chip that is simpler to work with; something
like NXP LPC1343 Cortex-M3 with USB or TI Stellaris LM36432 with
10/100 Ethernet. They're both single supply 3.3V chips. The NXP only
needs five-size passive support components.


> here the schema : https://file.tsaitgaist.info/www/?a=d&i=CWn6xIaCVe

I get nonsense messages visiting that page. :\ "needs input"
something or other. Maybe you can attach them to the wiki?


Christian Vogel wrote:
> according to the datasheet VDDPLL powers the oscillator, you should
> not leave it unconnected. VDDCORE powers the internal logic and
> is specified as 1.65V to 1.95V.

There might be an internal voltage regulator also for this chip, but
I would really go with cm3 for a new design.


//Peter