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WRain.1
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since ‎2021-06-26
‎2023-06-14

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I set the MCU STM32F103C8 to 72 MHz (8 MHz external oscillator). However, the function does not give exactly 1 ms of time, but a value approximately 4 times larger. Any suggestion?

2021-06-26
void delay_ms ( unsigned int i ){  unsigned int temp;  SysTick-> LOAD = 9000 * i; // if subtle, the SysTick-> LOAd = 9 * i;  SysTick->CTRL = 0x01;  SysTick->VAL = 0;  do{ temp = SysTick-> CTRL; // read the current countdown value  }while ( ( temp & 0...
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