![]() ![]() Potential symptoms Users including arm_compat.h already in their code may face issues like error: redefinition of '_enable_irq' _enable_irq(void). Unfortunately, this may cause redefinition issues when arm_compat.h shall be used together with CMSIS. CMSIS now provides its own implementation of this functions for Arm Compiler 6. This specifically applies to _enable_irq() and _disable_irq(). Starting with CMSIS 5.8.0 this has been removed in favor of a functional safe implementation. Up to CMSIS 5.7.0 arm_compat.h was included by CMSIS indirectly. ![]() Known Issues Relying on Arm Compiler 5 intrinsics defined in Arm Compiler 6's arm_compat.hĪrm Compiler 6 ships a compatibility header arm_compat.h which defines some Arm Compiler 5 intrinsics, such as _current_sp(), _current_pc() or _schedule_barrier().
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