TI has a $12.99 dev kit for their "Tiva" series ARM Cortex M4 series processors: https://estore.ti.com/Tiva-C-LaunchPad.aspx Two months out for delivery though. The Tiva claim to fame appears to be onboard firmware in ROM that supports the chip's peripherals, so you have the option of using their routines through their API. The chip also has EEPROM with 500K write endurance, and I think the flash program space itself is rated at 100K writes. Seems pretty cool. Bob --=20 http://www.fastmail.fm - A fast, anti-spam email service. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .