Arm Compiler 6 Assembler errors on RTX5 IRQ module Instead the defines _CM_CMSIS_VERSION_SUB and _CM_CMSIS_VERSION still refer to 5.4.0. The pre-processor defines to detect the used version of CMSIS-Core(M) are not updated to reflect version 5.5.0. CMSIS-Core(M) version defines not updated Users affected by this issue need to rely on the development branch. The definition of struct PMU_Type defined in core_cm55.h and core_armv81mml.h contains misaligned members. CMSIS-Core(M) for Cortex-M55 (Armv8.1-M Mainline) PMU_Type spurious reserved register and offset Its highly recommended to replace hardcoded include paths and rely on pack description information instead. Outlook See announcement below! The planned offloading of CMSIS-DSP will affect hardcoded project include paths in a similar way. CMSIS/Core/Include for CMSIS-Core(M) or. Workaround Instead of the common include one needs to include the individual component include folders, such as. This issue affects users not using the machine readable information from the pack description (. CMSIS/Include is missing since this release. The formerly existing but deprecated common include folder. Backward compatible common include folder. The project configuration needs to be adopted to use the clang frontend. Projects configured to use armasm will fail to compile the new startup code.
Iar arm 5.20 code#
The IDE will recreate the startup code from the shipped template using the correct case.Īnother issue when updating existing projects can be the selection of assembler to be used. In this case the user needs to delete the file manually. Unfortunately, IDEs can fail renaming the files kept as part of the project. Hence the startup files have been renamed from startup_.s to startup_.S. The new style makes use of pre-processor features. The Assembly syntax used for Armv8-M pseudo devices has been changed from ARM to GNU. Updating existing Armv8-M projects using Assembly startup with Arm Compiler 6 The include must be placed before any CMSIS header include. Workaround Users of Arm Compiler 6 depending on Arm Compiler 5 compatibility functions need to include arm_compat.h, explicitly. 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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