Hi Ralph! > The README file in your branch mentions "using an external UART > adapter for the second serial interface". Is that external UART on an > available add-on board or did you build something yourself or ???
We are mostly using adapters like this http://www.ebay.com/itm/5V-3-3V-FT232RL-USB-To-Serial-232-Adapter-Download-Cable-Module-For-Arduino-/161305918505?hash=item258e94fc29 and connect it to the external pins PA22/PA23 on the SAMR21. Cheers, Oleg -- prom_printf("Detected PenguinPages, getting out of here.\n"); linux-2.0.38/arch/sparc/mm/srmmu.c
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