CrossWorks for ARM vs e² studio

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.

e² studio is an Eclipse-based integrated development environment for Renesas microcontrollers, supporting work from sample-code access through debugging. Its project wizard creates MCU projects with basic sample code, while Smart Configurator sets clocks, pins, and interrupts and generates code for those settings. The Eclipse CDT editor provides completion, syntax coloring, navigation, folding, automated code constructs, preprocessor checking, and refactoring. Developers can choose Renesas or partner-vendor compilers, but must install them separately; compiler packages are not included in the IDE download. Debugging uses Eclipse CDT's GDB and includes register and memory views, breakpoints, real-time memory display, tracing, and peripheral-register display. Listed hardware includes Renesas E2, E2 Lite, and E20 emulators and SEGGER J-Link. Supported MCU families include RA, RZ, RL78, RX, RH850, and RISC-V. The Linux host version does not support the RE family or Renesas Synergy. e² studio runs on Windows, Linux, and macOS and costs nothing, with no paid version. Separate compiler packages may have their own license terms or evaluation limits.