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Altera_Forum's avatar
Altera_Forum
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14 years ago

Measuring Power on DE2-70

Hi all, How can I measure the FPGA core and I/O power on the DE2-70 board (physically or otherwise) while my running my design?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Yes true it’s not possible to measure a voltage drop across the 0 ohm resistors. But RS1 and RS2 are 10m ohms, these wouldn't need to be replaced if the voltage drop across them is measurable? If the voltage drop across them is too small to be measured accurately couldn't I pass it through an amplifier circuit?

Also would it be safe to say that if I only want to measure the FPGA core power I would only need to measure the voltage across RS1 and RS2? And if I want to measure only FPGA I/O power, I would need to replace the 0 ohm R127 and R128 with a suitable value?