Release notes
for IAR Embedded Workbench for Arm version 8.40.1
Read about the latest features, new device support, and program corrections in the release notes.
- Highlights
- Important information
- Release notes for individual components
- Product packages
- Installation and license activation
Highlights
C18 support
The default Standard C is now C18 (ISO/IEC 9899:2018).C++17 support
The compiler now supports all C++17 features. The C++ library supports C++14 with no C++17 additions.Streaming trace for improved code coverage and profiling features
The code coverage and profiling windows in C-SPY can now be feed with streaming trace data when using the IAR I-jet Trace probes. This means that both code coverage and profiling data can be collected during infinite test runs. See IAR Embedded Workbench C-SPY Debugging Guide for more information.Extended multicore support
The multicore support has been extended to support any number of asymmetrical cores. For example, it is now possible to debug and control a device with one A9, one M7, and two M4 cores, all synchronized by the Arm Coresight CTI mechanism under debugger control.Improved Source Browser
The following improvements have been made to the Source Browser:- The source browser data is generated faster as it is now running as a separate thread.
- New Source Browser Log window.
- Status indicator in the status bar.
- Enhanced feedback in case source browsing data cannot be generated.
Documentation Comments
The editor can distinguish comments that start with /**, /*!, /// or //! as Documentation Comments. Inside a Documentation Comment, the editor can recognize keywords that begin with \ or @. If the keyword is recognized as a doxygen keyword, the Documentation Comment will appear in tooltips and parameter hints for variables and functions. See IAR Embedded Workbench IDE Project Management and Building Guide for more information.CMSIS-Pack .gpdsc
The CMSIS-Pack Manager now supports Generator Package Description Files (.gpdsc).Performance Monitoring window
The Performance Monitoring window is a viewer for counting events or CPU clock cycles through the Performance Monitoring Unit (PMU) available on Cortex A and Cortex R processors. This feature is only available when using an IAR I-jet probe. Live update is available on all recent Cortex-A cores. See IAR Embedded Workbench C-SPY Debugging Guide for more information.Indicator for sleep mode
A new window in the C-SPY debugger shows if the processor is sleeping or not. See IAR Embedded Workbench C-SPY Debugging Guide for more information.C-SPY plugin for the UNISON RTOS
The REMEDY RTOS Viewer from RoweBots is now included as a C-SPY plugin. It provides updated information on operating system objects and system state information for the UNISON RTOS.
Device support
New device support
AnalogDevices ADuCM320 STMicroelectronics STM32G431C6
STM32G431C8
STM32G431CB
STM32G431K6
STM32G431K8
STM32G431KB
STM32G431R6
STM32G431R8
STM32G431RB
STM32G431V6
STM32G431V8
STM32G431VB
STM32G441C6
STM32G441C8
STM32G441CB
STM32G441K6
STM32G441K8
STM32G441KB
STM32G441R6
STM32G441R8
STM32G441RB
STM32G441V6
STM32G441V8
STM32G441VB
STM32G471CC
STM32G471CE
STM32G471ME
STM32G471QC
STM32G471QE
STM32G471RC
STM32G471RE
STM32G471VC
STM32G471VE
STM32G473CB
STM32G473CC
STM32G473CE
STM32G473MB
STM32G473MC
STM32G473ME
STM32G473QB
STM32G473QC
STM32G473QE
STM32G473RB
STM32G473RC
STM32G473RE
STM32G473VB
STM32G473VC
STM32G473VE
STM32G474CB
STM32G474CC
STM32G474CE
STM32G474MB
STM32G474MC
STM32G474ME
STM32G474QB
STM32G474QC
STM32G474QE
STM32G474RB
STM32G474RC
STM32G474RE
STM32G474VB
STM32G474VC
STM32G474VE
STM32G483CE
STM32G483ME
STM32G483QE
STM32G483RE
STM32G483VE
STM32G484CB
STM32G484CC
STM32G484CE
STM32G484RB
STM32G484RC
STM32G484RE
STM32G484VB
STM32G484VC
STM32G484VE
STM32G484WB
STM32G484WC
STM32G484WE
STM32GBK1CBT6
STM32H742VG
STM32H742VI
STM32H745BI
STM32H745II
STM32H745XI
STM32H745ZI
STM32H747AI
STM32H747BI
STM32H747II
STM32H747XI
STM32H747ZI
STM32H755BI
STM32H755II
STM32H755XI
STM32H755ZI
STM32H757AI
STM32H757BI
STM32H757II
STM32H757XI
STM32H757ZIToshiba TC35680FSG
TC35681FSG
TC35681IFTGDevice support
Example projects
Over 9500 example projects for various evaluation boards are included in the product installation. See the Information Center.
Important information
- Upgrade information
- Before you install
To avoid any problems, do not install this release in a directory where you have previously installed any older version of IAR Embedded Workbench. It is recommended that you either uninstall an earlier product, or install this release in a separate directory. As before, however, it is possible to install different products, all using the same version of the main application, in the same root directory.
- License renewal
The upgrade to this version might require a license renewal. This is performed by starting the IAR License Manager and selecting License>Check for License Renewal.
Note, if you have a network license, this must be performed on the license server. -
Microsoft SCC interface no longer supported
Microsoft SCC-compatible version control systems are no longer supported by IAR Embedded Workbench.
- Microsoft Windows
Windows Vista and newer operating systems have a security mechanism called UAC (User Access Control). Disabling UAC will automatically grant you permission when a task requires administrative rights but this is not recommended because it will reduce the security of the computer. It is not necessary to run the IAR Embedded Workbench IDE as an administrator. However, if you are not, modifications to the installed product tree in C:\Program Files\IAR Systems might not work as intended and could give unexpected results. One example is opening and building projects directly from the installed product tree. The build will succeed, but the resulting files (object, list, ...) will not appear where expected. Instead all output files will be redirected by the OS to C:\Users\<user name>\AppData\Local\VirtualStore\Program Files\IAR Systems. To avoid this, the preferred way is to copy the examples to a location outside Program Files, either manually or automatically by opening them via the IAR Information Center.
- Network licenses
For network licenses, this version of the IAR Embedded Workbench requires IAR License Server Tools version 2.16.2 or later. For more information see technical note TN21842. The latest IAR License Server Tools are backwards-compatible with previous IAR Embedded Workbench versions.
- Migration
The debugger flash loader mechanism was changed in version 5.40. If your project uses a default flash loader with no extra parameters, no migration work is needed.
If the debugger detects that your project uses a non-default flash loader or that it uses extra parameters, it will revert to the default flash loader for your device. In addition a.board
file will be created in the project directory. If necessary the.board
file can be edited and used by manually overriding the default flash loader with this project-specific.board
file.If you are migrating from version 4.x to this version, we recommend that you read the IAR Embedded Workbench Migration Guide for ARM.
- Object format
The object format used in the compiler, assembler, linker, and debugger is based on the ARM ABI standard version 2.10 with ELF/DWARF 4. For the standard definition, see the ARM Application Binary Interface.
Trademarks
IAR Systems, IAR Embedded Workbench, Embedded Trust, IAR Connect, C-SPY, C-RUN, C-STAT, IAR Visual State, IAR KickStart Kit, I-jet, I-jet Trace, I-scope, IAR Academy, IAR, and the logotype of IAR Systems are trademarks or registered trademarks owned by IAR Systems AB
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