The TrueSTUDIO Lite commercial-quality C/C++ integrated development environment for ARM processors is a completely free and comes without code-size or device usage limitations. Twenty-seven ARM cores from ten different MCU companies are supported and no registration is required.
The software package is based on an open standard tools platform of Eclipse/GCC/GDB and is extended and enhanced with commercial-quality modifications and getting started wizards. Also available is TrueSTUDIO Pro which starts at $59 per month for a 12-month prepaid subscription license. It includes static code analysis tools, advanced debugging capabilities, and technical support.
Learn more about Atollic