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CMSIS-Core (Cortex-A)
CMSIS-Core support for Cortex-A processor-based devices
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CMSIS-Core (Cortex-A)
CMSIS-Core support for Cortex-A processor-based devices
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The System Configuration Files system_<device>.c and system_<device>.h provides as a minimum the functions described under System and Clock Configuration. These functions are device specific and need adaptations. In addition, the file might have configuration settings for the device such as XTAL frequency or PLL prescaler settings.
For devices with external memory BUS the system_<device>.c also configures the BUS system.
The silicon vendor might expose other functions (i.e. for power configuration) in the system_<device>.c file. In case of additional features the function prototypes need to be added to the system_<device>.h header file.
The system_Device.c Template File for the Cortex-M3 is shown below.
The system_<device>.h header file contains prototypes to access the public functions in the system_<device>.c file. The system_Device.h Template File is shown below.