off-topic: PIC and ETRAX [was: Memtest+]

Peter Stuge stuge-linuxbios at
Thu Dec 30 09:32:01 CET 2004

On Thu, Dec 30, 2004 at 02:25:47PM -0500, Dave Aubin wrote:
> Nice read Peter, thank you for the info:)

No problem!

> Would be nice to use some voltage reference differencing
> Instead of using a Max 232, but the Max is probably a cleaner
> approach.

The MAX232 is pretty common for connecting both PIC and AVR devices
to RS-232 equipment. It just needs a few external capacitors, which
is nice.

> A nerdy aside, I heard the 18F4550 and 18F2550 can run up to 12MIPs
> from a 4MHz crystal, they've got a whopping 16K of flash, and they
> have a Full-Speed USB v2.0 hardware.

Yep. And 2kb RAM. Check out the data sheet page 11 and chapter 2.

> Now if I could only run Linux on a PIC;)

Linux? That's for the ETRAX, made by Axis. Check out

Everything-is-included Linux chip with 10/100 and both NOR and NAND
flash for boot as well as storage. They've ported the GNU toolchain

I'm still waiting for some project where I can use the MCM and end up
with a few extra boards. :)


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