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problem for Core-M4 systemtick clocksource

Question asked by Aaron wang on Nov 27, 2013
Latest reply on Dec 10, 2013 by Aaron wang

Hi, All

 

I have a question what is the Core-M4 systemtick clock source When use K60?

 

I configure the systick as

SysTick->CTRL  = SysTick_CTRL_CLKSOURCE_Msk |

                           SysTick_CTRL_TICKINT_Msk   |

                           SysTick_CTRL_ENABLE_Msk;  

 

SysTick_CTRL_CLKSOURCE_Msk means CLKSOURCE = 1

CLKSOURCE Indicate s the clock source:

  0 = external clock

  1 = processor clock.

 

CLKSOURCE = 1 means select processor clock.

What is processor clock in the K60? It is core clock such as 100Mhz?

 

Thank you

 

Best Regards

Wang Song

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