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IAR Embedded Workbench for Arm 9.70.x

State Log window

In this section:

What do you want to do?

YellowStripe.png

The State Log window is available from the C-SPY driver menu.

StateLogWinHom74_01_ARM.png

This window logs activity—state changes—for peripheral units and clocks, as well as for CPU modes.

The information is useful for tracing the activity on the target system. When the State Log window is open, it is updated continuously at runtime.

Note

The number of saved logs is limited. When this limit is exceeded, the entries at the beginning of the buffer are erased.

Requirements

One of these alternatives:

  • The C-SPY MSP-FET driver and a TI MSP-FET debug probe with EnergyTrace+(TM) Technology provided by Texas Instruments.

  • The C-SPY TI XDS driver and a TI XDS110 debug probe with EnergyTrace+(TM) Technology provided by Texas Instruments, and one of the MSP432, CC13xx, or CC26xx devices.

Display area

This area contains these columns:

Time

The time for the state change, based on the sampling frequency.

If a time is displayed in italics, the target system has not been able to collect a correct time, but instead had to approximate it.

Source

The name of the peripheral unit, clock, or CPU mode.

Status

The status at the given time.

Program Counter*

The address of the program counter when the status changed, or shows idle if the log was taken during CPU idle mode, or shows ‑‑- for an unknown PC value.

Active

The active time calculated using the on and off time for the source. If it is written in italics, it is based on at least one approximative time.

* You can double-click an address. If it is available in the source code, the editor window displays the corresponding source code, for example for the interrupt handler (this does not include library source code).

Context menu

This context menu is available:

InterruptLogWinPopUp_Too63_2.png

These commands are available:

Enable

Enables the logging system. The system will log information also when the window is closed.

Clear

Deletes the log information. Note that this will also happen when you reset the debugger.

Save to Log File

Displays a standard file selection dialog box where you can select the destination file for the log information. The entries in the log file are separated by TAB and LF characters. An X in the Approx column indicates that the timestamp is an approximation.

Show Time

Displays the Time column. If the Time column is displayed by default in the C-SPY driver you are using, this menu command is not available.

Show Cycles

Displays the Cycles column. If the Cycles column is not supported in the C-SPY driver you are using, this menu command is not available.