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Calculation time is same in both 36MHz and 64MHz clock

Question asked by Nima on Dec 15, 2015
Latest reply on Dec 16, 2015 by Clive One
Hi everybody
I am trying to implement some mathmatic calculations in STM32F103.
I use HSI and PLL to provide 64MHz and 36MHz clock, considering Flash Wait State and enabling Prefetch Buffer.
 I expect that the calculation time in 64MHz should be faster that 36MHz. As I checked, in both cases, the calculation time is almost same (e.g. 130 usec).
For your information, I used the Timer counter value (e.g. Timer 1) in debug mode (DBGMCU_TIM1_STOP enabled) to calculate the time required for calculation processes.

Can anybody help me on this issue?