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IAR Embedded Workbench for Arm 9.70.x

Memory window

In this section:

What do you want to do?

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The Memory window is available from the View menu.

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This window gives an up-to-date display of a specified area of memory—a memory zone—and allows you to edit it. You can open several instances of this window, which is very convenient if you want to keep track of several memory or register zones, or monitor different parts of the memory.

Tip

To view the memory corresponding to a variable, you can select it in the editor window and drag it to the Memory window.

Requirements

Can be used with all C-SPY debugger drivers and debug probes.

Toolbar

The toolbar contains:

Go to

The memory location or symbol you want to view.

Zone

Selects a memory zone, see C-SPY memory zones.

Context menu button

Displays the context menu.

Update Now

Updates the content of the Memory window while your application is executing. This button is only enabled if the C-SPY driver you are using has access to the target system memory while your application is executing.

Live Update

Updates the contents of the Memory window regularly while your application is executing. This button is only enabled if the C-SPY driver you are using has access to the target system memory while your application is executing. To set the update frequency, specify an appropriate frequency in the IDE Options>Debugger dialog box.

Display area

The display area shows the addresses currently being viewed, the memory contents in the format you have chosen, and—provided that the display mode is set to 1x Units—the memory contents in ASCII format. You can edit the contents of the display area, both in the hexadecimal part and the ASCII part of the area.

Data coverage is displayed with these colors:

Yellow

Indicates data that has been read.

Blue

Indicates data that has been written

Green

Indicates data that has been both read and written.

Note

Data coverage is not supported by all C-SPY drivers. Data coverage is supported by the C-SPY simulator for many cores and devices.

Context menu

This context menu is available:

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These commands are available:

Copy, Paste

Standard editing commands.

Zone

Selects a memory zone, see C-SPY memory zones.

1x Units

Displays the memory contents as single bytes.

2x Units

Displays the memory contents as 2-byte groups.

4x Units

Displays the memory contents as 4-byte groups.

8x Units

Displays the memory contents as 8-byte groups.

Little Endian

Displays the contents in little-endian byte order.

Big Endian

Displays the contents in big-endian byte order.

Data Coverage

Choose between:

Enable toggles data coverage on or off.

Show toggles between showing or hiding data coverage.

Clear clears all data coverage information.

These commands are only available if your C-SPY driver supports data coverage.

Find

Displays a dialog box where you can search for text within the Memory window—read about the Find dialog box in Find dialog box.

Replace

Displays a dialog box where you can search for a specified string and replace each occurrence with another string—read about the Replace dialog box in Replace dialog box.

Memory Fill

Displays a dialog box, where you can fill a specified area with a value, see Fill dialog box.

Memory Save

Displays a dialog box, where you can save the contents of a specified memory area to a file, see Memory Save dialog box.

Memory Restore

Displays a dialog box, where you can load the contents of a file in Intel-hex or Motorola s-record format to a specified memory zone, see Memory Restore dialog box.

Set Data Breakpoint

Sets breakpoints directly in the Memory window. The breakpoint is not highlighted—you can see, edit, and remove it in the breakpoint dialog box. The breakpoints you set in this window will be triggered for both read and write access. For more information, see Setting a data breakpoint in the Memory window.

Set Data Log Breakpoint

Sets a breakpoint on the start address of a memory selection directly in the Memory window. The breakpoint is not highlighted—you can see, edit, and remove it in the breakpoint dialog box. The breakpoints you set in this window will be triggered by both read and write accesses—to change this, use the Breakpoints window. For more information, see Data Log breakpoints and Getting started using data logging.