On Wed, Mar 19, 2008 at 11:40 AM, Marc Jones marc.jones@amd.com wrote:
That will do more than you want but you can use it as the ROM so you don't have to reprogram the flash all the time. Maybe someone else knows of some other options.
Also if the board has an LED connected to a GPIO output you may be able to toggle it for 1 bit of information. Whether programming GPIOs is any easier than getting the serial port working depends on the chipset.
--Ed