STM32 microsecond delay program-EEWORLD

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My stm32 system clock is 72MHZ, and I use software delay method to achieve microsecond delay, that is, empty loop:

The delay function is:

#define delayUs(x) { unsigned int _dcnt; \
      _dcnt=(x*16); \
      while(_dcnt-- > 0) \
      { continue; }\
     }

x---------is the delay time (in us)

The 16 in _dcnt=(x*16); can be changed. When it is changed to 8, the delay time is x*0.5.

Keywords：stm32 Reference address：STM32 microsecond delay program

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