Problem on OSIF_GetMilliseconds

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Problem on OSIF_GetMilliseconds

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xu_wenming
Contributor II

Hello,

I'm using S32DS for ARM  2.2, SYS_CLK is configured as 80 MHz.

When I estimate time consumption by OSIF_GetMilliseconds in osif_baremetal.c, it takes around 114 ms when it returns 100 ms.

BR,

Matthew Xu

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi 文明 徐,

Hope it helps: Measure the running time of one function on S32K

ARM Cortex-M have a DWT (Data Watchpoint and Trace) unit implemented, and it has a nice feature in that unit which counts the execution cycles.

Best Regards,

Robin

 

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