BigEd wrote:
Nearby some 5V tolerant ARM offerings:
I am working on a hobby project with a 5V ARM microcontroller, the
MKE06Z128VLD4. It's an NXP (Freescale) Kinetis part like on the Teensy boards earlier in this thread. This one is from the KE06 subfamily. It runs on 5V directly and is an LQFP-44 package that is
relatively easy to solder. It features a 48 MHz Cortex M0+, 128K flash, 16K RAM, and many built-in peripherals. It's less than USD $5 at Digi-Key and Mouser. There are also slightly less expensive parts in the KE04 and KE06 subfamilies (less flash and RAM, different peripherals) but still 5V and available in the LQFP-44 package.
You can see a photo of my board below. I've got the MKE06Z128VLD4 soldered to a
PA0093 breakout. At almost USD $11, the PA0093 is far too expensive. Next time I'll use a cheap no-name breakout from eBay. There are only a few connections to wire up (5V power, optional external oscillator, debug connector). There's a cross-platform (Eclipse-based) IDE called
Kinetis Design Studio. I used it to get started but now I'm just using GCC on the command line. I'm flashing and debugging using a
Segger J-Link EDU (non-commerical use only).
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