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RTOS/TMS320C6748: Setting CPU clock frequency in app.cfg seems takes no effect in SYSBIOS

Part Number: TMS320C6748
Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI-RTOS

I use SYSBIOS version 6.46.5.55 and XDCTOOLS 3.32.1.22.

Q1:I set cpu clock frequency as 456MHz in app.cfg. And set Timer2 as 500ms, in which it toggles the led and log_info.

But when running, the duration seems to be 330ms, not 500ms.It seems the sysbiso don't know the frequency has been changed from 300MHz to 456MHz.

The project is clearned and rebuild but it's still 330ms.

Q2: althrough I have checked the "Swi Context", but the Execution Graph doesn't shows the Swi.

How to fix these two problems?