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IAR Embedded Workbench for Arm 9.70.x

Power Log Setup window

In this section:

What do you want to do?

YellowStripe.png

The Power Log Setupwindow is available from the C-SPY driver menu during a debug session.

PowerLogSetupWin_Too64_1.png

Use this window to configure the power measurement.

Note

To enable power logging, choose Enable from the context menu in the Power Log window or from the context menu in the power graph in the Timeline window.

Requirements

A debug probe with support for power debugging and one of these alternatives:

  • The C-SPY I-jet driver

  • The C-SPY J-Link/J-Trace driver

  • The C-SPY ST-LINK driver

  • The C-SPY TI MSP-FET driver

  • The C-SPY TI XDS driver

Sampling Frequency toolbar

Use this toolbar to override the default sampling frequency, and to inspect the maximum and the actual sampling frequency.

Max [Hz]

This is the maximum supported sampling frequency in Hertz.

Wanted [Hz]

Use this option to override the default sampling frequency. The frequency you enter will be rounded to the nearest possible value, and the Actual [Hz] value will be updated accordingly.

Actual [Hz]

This is the actual sampling frequency being used.

Display area

This area contains these columns:

ID

A unique string that identifies the measurement channel in the probe. Select the check box to activate the channel. If the check box is deselected, logs will not be generated for that channel.

Name

Specify a user-defined name.

Shunt [Ohm]

This column always contains ‑‑ (two dashes) for all debug probes except I-scope. For I-scope, specify the resistance of the shunt.

Threshold

Specify a threshold value in the selected unit. The action you specify will be executed when the threshold value is reached.

Unit

Displays the selected unit for power. You can choose a unit from the context menu.

Action

Displays the selected action for the measurement channel. Choose between:

  • Log All

  • Log Above Threshold

  • Log Below Threshold

  • Log All and Halt CPU Above Threshold

  • Log All and Halt CPU Below Threshold

Context menu

This context menu is available:

PowerSetupPopUp_1_Too63.png

These commands are available:

nA, uA, mA

Selects the unit for the power display. These alternatives are available for channels that measure current.

uV, mV, V

Selects the unit for power display. These alternatives are available for channels that measure voltage.

uWs, mWs, Ws

Selects the unit for power display. These alternatives are available for channels that measure energy.

Log All

Logs all values.

Log Above Threshold

Logs all values above the threshold.

Log Below Threshold

Logs all values below the threshold.

Log All and Halt CPU Above Threshold

Logs all values. If a logged value exceeds the threshold, execution is stopped. This might take a few execution cycles.

Log All and Halt CPU Below Threshold

Logs all values. If a logged value goes below the threshold, execution is stopped. This might take a few execution cycles.