Wednesday Jul 08, 2009

Programming the eDemo AVR

The eSPOT demo board has an Atmel AVR microcontroller (MCU) for LEDs, pushbuttons and general IO. This MCU comes preprogrammed at the factory  and can be reprogrammed in the field with an ant upgrade command. A SPOT owner might wish to change the firmware to either add functionality or do something the eDemo board currently doesn't provide.

The latest Red release of the SPOT SDK will program the eDemo AVR firmware directly and without a bootloader during the upgrade process. The same code that is used to upgrade the eDemo board firmware can be used to load custom firmware into the eDemo AVR. This blog walks you through the steps of downloading a tool chain for Windows and programming a simple example on the eDemo board. It does use an existing java class that is in the Red release of the SPOT SDK and this SDK must be installed on the desktop and the target SPOT plugged into USB for this to work.

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