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5.4. The Power Monitor
The Power Monitor communicates with the MAX® V device on the board through the JTAG bus. A power monitor circuit attached to the MAX® V device allows you to measure the power that the Cyclone® V FPGA is consuming.
The following sections describe the Power Monitor controls.
U34 and U26
The U34 and U26 groups show the power rail graphs. They display the mA power consumption of your board over time. The green line indicates the current value. The red line indicates the maximum value read since the last reset.
- Temp on 2978: The temperature controls display only the temperature from the power supply manager, not the FPGA.
- Total Power: These controls display the sum of all four rails for each group, U34 and for U26.
Controls
This group contains the following controls:
- Start: Starts the communication with the board to monitor power.
- Stop: Stops the communication with the board to monitor power.
- Update speed: Specifies how often to refresh the graph.
- Log Results: Specifies that a log file is saved to cycloneVSX_5csxfc6df31_soc\examples\board_test_system .
- MAX V version—Indicates the version of MAX® V code currently running on the board. The MAX® V code resides in the following directories:
- cycloneVSX_5csxfc6df31_soc\factory_recovery
- cycloneVSX_5csxfc6df31_soc\examples\max5
A table with the power rail information is available in the Cyclone® V SoC Development Board Reference Manual.