Highlights

New devices

The following new devices have been added:
MSP430FR6007, MSP430FR6005, MSP430FR2672 and MSP430FR2673

Elprotronic XStream-Iso and XStreamPro-Iso

Support for the new XStream-Iso and XStreamPro-Iso adapters has been added. See Elprotronic MSP430 products for details.

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
• New status indicator in the status bar
• Enhanced feedback when source browsing data cannot be generated

Error corrections

Several reported issues have been fixed. See release notes of individual components for details.

Highlights

• Nexus IEEE-ISTO 5001™ compatible trace
  The Embedded Workbench for RISC-V now support the I-jet Trace probes and a first implementation of trace based on the Nexus Protocol. Trace adapters for the Arty A7-100T FPGA development platform can be used to enable capture of external 4-bit trace via the Pmod connectors. Trace viewers including time-line visualization and search capabilities are enabled in the Embedded Workbench IDE.

Extended coverage of CERT C

The static analysis tool C-STAT has extended its coverage of the SEI CERT C Coding Standard. The SEI CERT C Coding Standard's goal is to provide rules for developing safe, reliable and secure systems in the C programming language, with support for C11 constructs. C-STAT covers all rules in the different CERT C sections listed at the CERT C wiki as of January 2020, with the exception of the API, CON, POS and WIN sections which are not applicable to our products, yielding a total of 90 covered rules.

Link analysis trace information

The link analysis messages now display trace information when relevant. For checks looking for conflicting symbol names, all conflicting declarations are now listed in the trace information instead of each pair of conflicts being described in a separate message. This might lead to fewer reported messages for the same number of found issues.

Support for new devices

• Epson S1C31D01, S1C31D50
• Hilscher netX90
• Microchip SAM9X60
• Nordic nRF5340_xxAA
• NXP LPC5512, LPC5514, LPC5516, LPC55S14, LPC55S16, K32L2A31xxxxA, K32L2A41xxxxA, MIMXRT633S, MIMXRT685S, QN9030, QN9090
• Renesas R7FA2A1AB, R7FA4M1AB, R7FA6M1AD, R7FA6M2AD, R7FA6M2AF, R7FA6M3AF, R7FA6M3AH, R7S910020, R7S910021, R7S910022, R7S910023

Highlights

• Arm STAR processor core
  The Arm China STAR is the first processor in the STAR series processor family. It is a microcontroller class processor based on the Armv8-M mainline architecture with Arm TrustZone technology.

• Embedded Trace Router (ETR)

  The debugger can now handle trace data acquired using ETR with I-jet for devices that support that mechanism. ETR is similar to ETB but allows the user to use any RAM in the device as trace buffer memory.

• Support for new devices
  
  Cypress
  CYT2B7, CYT2B9, CYT3BB, CYT4BB, CYT4BF
  
  NordicSemiconductor
  nRF52811-xxAA
  
  NXP
  LPC5526, LPC5528
  K32L2B11xxxxA, K32L2B21xxxxA, K32L2B31xxxxA
  MKW34A512xxx4
  
  Renesas
  R-IN32M4-CL3
  
  ST
  STM32L4P5AE, STM32L4P5AG, STM32L4P5CE, STM32L4P5CG, STM32L4P5QE, STM32L4P5QG, STM32L4P5RE, STM32L4P5RG, STM32L4P5VE, STM32L4P5VG, STM32L4P5ZE, STM32L4P5ZG, §BR STM32L4Q5AG, STM32L4Q5CG, STM32L4Q5QG, STM32L4Q5RG, STM32L4Q5VG, STM32L4Q5ZG
  STM32L552CC, STM32L552QC, STM32L552RC, STM32L552VC
  STM32WB35CC, STM32WB35CE
  STM32WB50CG
  
  Texas Instruments
  CC2652P1F

C18 support
The default Standard C is now C18 (ISO/IEC 9899:2018).

C++17 support
The compiler now supports almost all C++17 features. The C++ library supports C++14 with no C++17 additions.

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.

EZ-CUBE2 On-Chip Debug Emulator support
The EZ-CUBE2 On-Chip Debug Emulator, primarily targeted for the Chinese market, is now supported.

E2 emulator power debugging in C-SPY
The E2 emulator allows you to measure the dynamically changing current drawn by the user system. This is visualized as a graph in the C-SPY Timeline window as well as a list of time-current value pairs in the Power Log window. It is also possible to stop execution when the current goes above or below a certain user-defined threshold value.

Documentation Comments support in the editor
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.

Updated user documentation
The IDE Project Management and Building Guide, C-SPY Debugging Guide and C/C++ Development Guide have been updated to reflect the product changes.

• Support for the base instruction set RV32E
  RV32E is a base instruction set that targets smaller embedded devices. The register set is reduced to half of what is available in RV32I.
• Support for the standard extension for Atomic operations (A)
  The standard extension A adds instructions that support atomic read, modify, and write actions to support synchronization between different HW processes that access the same memory.
• Support for interrupt vectors
  Interrupt vectors and the #pragma vector directive are now supported for a number of devices. New tutorial projects on how to work with interrupts are also included.
• Stack protection
  The IAR C/C++ Compiler for RISC-V now supports stack protection. A canary value will be placed between the stack variables and the return address so that the system can detect corruption of a function return address before the function returns to that address. The compiler will use heuristic to determine whether a function needs stack protection or not. If any defined local variable has the array type or a structure type that contains a member of array type, the function will need stack protection. See the IAR C/C++ Development Guide for more information.
• Optimized floating-point libraries for devices without an FPU
  New floating-point libraries hand written in assembler language to increase performance. 
• Interrupt and exception catching
  The debugger can now catch and act on exceptions and interrupts. These can be configured in the Project options dialog box for the C-SPY driver.
• Data breakpoints
  It is now possible set a breakpoint on a data address.
• Asynchronous multicore debugging
  The debugger can now handle several asynchronous cores.
• C-SPY SDK
  The C-SPY SDK is now available upon request. The SDK makes it possible to develop IAR Embedded Workbench plugins and C-SPY drivers.
• Device support
  This release adds support for the following cores:
  Andes D25F
  CloudBear BM-310

• RX72M, RX13T and RX23W supported
  The RX13T and RX23W groups of microcontrollers as well as the RX72M group, including the new double-precision floating-point processing instructions, are now supported.
• Renesas Smart Configurator fully supported
  With Renesas Smart Configurator V2.3.0 (included), the FIT (Firmware Integration Technology) modules are now compatible with IAR Embedded Workbench. This means that the tool supports the following three functions related to embedding Renesas drivers in your systems: importing middleware, generating driver code, and generating code for making pin settings. The generated modules are incorporated via the IAR Project Connection mechanism.
• EZ-CUBE2 On-Chip Debug Emulator support
  The EZ-CUBE2 On-Chip Debug Emulator, primarily targeted for the Chinese market, is now supported.

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 support in the editor
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.

Newer version of C-STAT
The static analysis tool C-STAT has been updated with 20 additional rules, a number of bugfixes and better reporting function.

Support new debugger
Support for STLINK-V3 has been added.

Translator platform improvements

General improvements and fixes.

Support for new devices

Support for ATmega808, ATmega809, ATmega1608, ATmega1609, and AT90SCR400 has been added.

Updated IDE look and feel

The IDE has new artwork, enhancements to window management and docking, customizable toolbars, revised Information Center, and new tutorials.

Enhanced Registers and Symbols windows in C-SPY

The C-SPY Symbols and Registers windows have been re-designed with new features. The Symbols window now has a filtering function and a new column displaying to which program module a certain symbol belongs. Some of the new features in the Registers window are drag-and-drop support from source code windows, detailed register tool-tip information, and improved handling of user-defined registers groups.

Improved C-STAT Static analysis

• New checks have been added including about 20 new checks in the MISRA C 2004 package.
• Improved analysis engine which increases the analysis precision.
• The time-consuming false-positive analysis is now disabled by default but can be enabled by an option in the IAR Embedded Workbench IDE or on the command line.
• A new option in the IAR Embedded Workbench IDE makes it possible to limit the number of messages generated per check and per file.
• C-STAT message suppression can now be controlled by directives placed in comments in the source files.
• A new option --deterministic has been added to ensure a deterministic amount of messages when running icstat with multiple threads, so that the amount of messages stays approximately the same from one analysis run to another. This option puts a limit on the option --parallel.

Updated user documentation

The IDE Project Management and Building Guide has been updated to reflect the product changes.

New device support

• Silicon Labs: EFM8UB31F40G, EFM8UB30F40G
• Nuvoton: ML51 - ML51BB9AE, ML51DB9AE, ML51FB9AE, ML51OB9AE, ML51XB9AE, ML51EB9AE, ML51UB9AE, ML51PB9AE, ML51TB9AE, ML51EC0AE, ML51UC0AE, ML51PC0AE, ML51TC0AE, ML51LC0AE, ML51PD1AE, ML51MD1AE, ML51LD1AE, ML51SD1AE, MS51 - MS51FB9AE, MS51XB9AE, MS51XB9BE, MS51OB9AE, N76E013
• Texas Instruments: MSC1213Y2, MSC1213Y3, MSC1213Y4, MSC1213Y5, MSC1214Y2, MSC1214Y3, MSC1214Y4, MSC1214Y5

Improvement in C-STAT

Improved full report generation to reduce the risk of slowing down the IAR Embedded Workbench and/or external web-browser.

Parallel build

IAR Embedded Workbench can now build projects using multiple parallel processes. This can improve build performance significantly on multi-core or multiple processor computers. 

C-SPY debugger improvements

• There is now a search box in the C-SPY Register window for finding a specific register.
• It is now possible to sort the entries in the C-SPY Statics window by clicking on the respective column header.
• If a selection is made in the C-SPY Memory window, then the Find and Replace context menu commands now operate just on this selection.
• The new C-SPY macro __MessageBoxYesNo displays a Yes/Cancel dialog box and returns the user input. Typically, this can be useful for creating macros that require user interaction.

Building all configurations with iarbuild

By specifying a wildcard character (*) as the configuration name, it is now possible to clean/build/make all configurations defined in the project file by calling iarbuild.exe only once.

Updated IDE look and feel

The IDE has new artwork, enhancements to window management and docking, customizable toolbars, revised Information Center, and new tutorials.

Support for the C11 language standard

The compiler and libraries add support for the latest C language standard ISO/IEC 9899:2011.

Support for the C++14 language standard

The compiler and libraries now support the latest C++ standard ISO/IEC 14882:2014.

Unicode support

The Unicode standard for consistent encoding, representation, and handling of text is now supported. This means that you can use Unicode characters (alphabetic, numeric, symbols, emoji, etc) in the source code.

Stack usage analysis

With stack usage analysis enabled, a stack usage section will be added to the linker map file with listings of the maximum stack depth for each call graph root. The analysis process can be customized to take into account such constructs as calls via function pointers and recursion. The output can optionally be generated in XML format for post-processing activities.

Stack protection

The IAR C/C++ compiler for RH850 now supports stack protection. A canary value will be placed between the stack variables and the return address so that the system can detect corruption of a function return address before the function returns to that address. The compiler will use heuristic to determine whether a function needs stack protection or not. If any defined local variable has the array type or a structure type that contains a member of array type, the function will need stack protection.

Renesas Smart Configurator included

Renesas Smart Configurator is a standalone tool for automatically generating control programs (device driver programs) for peripheral modules in accordance with settings. It fully supports code generation for IAR Embedded Workbench for RH850 and the generated modules are incorporated via the IAR Project Connection mechanism.

Enhanced Registers and Symbols windows in C-SPY

The C-SPY Symbols and Registers windows have been re-designed with new features. The Symbols window now has a filtering function and a new column displaying to which program module a certain symbol belongs. Some of the new features in the Registers window are drag-and-drop support from source code windows, detailed register tool-tip information, and improved handling of user-defined registers groups.

C-STAT MISRA C

The MISRA C 2004 package in C-STAT has been updated with about 20 new checks, some of which are enabled by default.