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TMS320F280025: When the function in the driver is not called, the compilation is normal. When the function is called, the register inside the message is not defined. Why is this?

Part Number: TMS320F280025
Other Parts Discussed in Thread: C2000WARE

Dear Expert

I encountered the following problem when compiling 280025 small system.

 

When the function in the driver is not called, the compilation is normal. When the function is called, the register inside the message is not defined. Why is this?

ServiceDog() is in f28002X_sysctrl.c, and calls to f28002X_sysctrl.c, such as InitPieCtrl(), have similar problems. Compiler used in v21.6.0.LTS version.