3.2.1 Power Interface
The Power interface measures the power consumption of the connected circuitry. For more information on the hardware part of the power interface, see the user guide of the debugging tool to be used for the power measurements.
Select the Power interface beneath the debug tool DGI. Set up the interface using the controls under “Power Settings.” Available controls will vary depending on the capabilities of the connected debugging tool.
| Control | Value | Usage |
|---|---|---|
| Enabled Channels | A, A+B | Either enable channel A only or both channels A and B. Channel A is always enabled. |
| Lock Channel A in high range | Unchecked, checked | On the Power Debugger, channel A can be locked to the high range to avoid automatic switching to the low range. This allows detection of short spikes in current consumption without critical samples being lost when switching between the ranges. |
| Enable Voltage Output | Unchecked, checked | The Power Debugger features an adjustable target supply that can be used to power the target application. Disabling this setting sets the output voltage of this supply to 0. Enabling it sets the supply to the voltage level of the "Voltage Output" setting. |
| Voltage Output (mV) | Between 1600 mV and 5500 mV | When the "Enable Voltage Output" setting is enabled, the value of this setting is the target supply voltage of the Power Debugger. Changes made to this setting while Voltage Output is enabled are committed when clicking the yellow checkmark button. |
| Generated Output (mV) | This setting is read-only | This is a read-only setting that shows the voltage level of the target supply voltage of the Power Debugger. The value is controlled by the "Enable Voltage Output" and "Voltage Output (mV)" settings. |
| Calibrate | Click to activate | Triggers the calibration procedure of the current measurement circuitry. To achieve full measurement accuracy on the current measurement hardware, it should be calibrated before running any measurements. |
Tip: The channel A range lock will not force the debugger to return to the high
current range if already running in the low range. Either wait for a current high enough
to force it to change, or simply Stop and Start the debugger.
Tip: Each power signal time plot uses system resources. Reduce the number of
concurrent plots for better performance.