Measuring Power on DE2-70

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How can I measure the FPGA core and I/O power on the DE2-70 board (physically or otherwise) while my running my design?

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Look at page 23 of the schematic. VCCINT and VCCIO are derived from the main power supplies after going through a couple of resistors.

Replace the existing resistors with appropriate low-valued resistors and then measure the voltage drop over them.

First perform a power analysis of your design using Modelsim to get a VCD file, and then the Quartus power analyzer. Then use that estimate to determine the resistor size. The voltage drop over the resistor need to be small enough to keep the voltages within specification.

Use a pair of scope channels to probe either side of the resistor to measure the small voltage drop. If you have a fancy scope, use the math function to calculate the difference, and then average the difference. Then calculate power.

Cheers,

Dave