Debug Assist Boards

Here are some debug assist boards that you might find useful.

Jtag boards

 * Olimex JTAG USB OCD device - see https://www.sparkfun.com/products/7834
 * has USB JTAG, RS232 (full modem signals supported) port; and power supply all in one compact device
 * Abatron BDI3000 - see http://www.abatron.ch/products/bdi-family/bdi3000.html

Control boards

 * Sony Debug Assist board (also known as CDB Assist)
 * provides power supply, USB pass-through to host, and control of 3 "buttons" via USB connection on host
 * Target Switch Control From Parallel Port
 * an old design for controlling switches using a computer's parallel port lines

Power Measurement

 * BayLibre ACME cape (for BeagleBone Black) - see http://baylibre.com/acme/
 * supports different power measurement probes via a standard connector
 * presentation on issues at: http://events.linuxfoundation.org/sites/events/files/slides/Leveraging_Open-Source_Power_Measurement_Standard_Solution_0.pdf