CrossWorks for ARM vs IAR Embedded Workbench

CrossWorks for ARM is a C/C++ and assembly development system for ARM and Cortex microcontrollers. Its CrossStudio IDE brings editing, building, downloading and SWD/JTAG debugging into one environment. The package includes GNU GCC and Clang/LLVM toolchains, and its multi-core debugger also works with applications built using external toolchains. Supported cores range from Cortex-M, Cortex-A and Cortex-R to ARM7, ARM9, ARM11, Feroceon and XScale. Supported connections include CrossConnect Neo, SEGGER J-Link, CMSIS-DAP, ST-LINK and FTDI-based JTAG devices. It also includes an embedded C runtime library that is neither GPL nor LGPL, and a royalty-free tasking library for pre-emptive task switching and synchronization. Downloads for Windows, macOS and Linux include x64 and ARM64 or Apple Silicon builds. The evaluation can remain active with a 16KB code-size limit or be unlocked for 30 days. A Named Developer License is $2,500 as a one-time purchase; a Shared Developer License is $3,750 as a one-time purchase. Both include commercial use, 12 months of support and 12 months of software assurance.

IAR Embedded Workbench is an embedded development toolchain with an IDE, optimizing compiler, linker, assembler, and debugger. It supports over 20 architectures, including Arm, RISC-V, 8051, MSP430, AVR, and several Renesas families. The C-SPY debugger provides real-time trace, code coverage, function profiling, and RTOS awareness. IAR C-STAT offers static analysis; IAR C-RUN detects runtime errors and is available for Arm and RX. The toolchain works with VS Code and Eclipse, supports CMake builds, and can integrate with CI/CD pipelines. Supported debug probes include I-jet, I-jet Trace, J-Link, PE Micro, and ST-LINK. Built-in plugins provide RTOS awareness for systems including PX5 RTOS and Zephyr RTOS. The IDE runs natively on Linux and Windows. A 14-day evaluation is available for non-commercial use, but excludes runtime library source code, C-STAT, and MISRA C support and includes limited technical support. Paid subscription pricing is available by request; the subscription combines named-user licenses and build capacity for automated builds and CI/CD.