Atollic recently launched the new TrueSTUDIO Lite, which is a free, commercial-quality IDE without code-size or microcontroller family limitations. TrueSTUDIO Lite offers the ARM development community a high-quality tool to standardize on. Based on an open standard tools platform of Eclipse/GCC/GDB, that TrueSTUDIO Lite features commercial-quality modifications, start-up wizards, and target support for ARM-based microcontrollers.
Atollic is also introducing a low-cost upgrade path to TrueSTUDIO Pro, which includes static code analysis and advanced debugging capabilities such as event-, data-, and instruction-tracing, live variable watch, crash analysis, and RTOS-aware debugging. The Pro edition includes full technical support. You can add these capabilities with a low-cost, pay-as-you-go subscription option.
You can download TrueSTUDIO Lite for free. TrueSTUDIO Pro starts at $59 per month for a 12-month prepaid subscription license.