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22 lines
549 B
22 lines
549 B
#include "delay.h"
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void delayInitMs(uint32_t clk, uint32_t ticks)
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{
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/* Configure the SysTick to have interrupt in 1ms time base */
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SysTick->LOAD = (uint32_t)((clk / ticks) - 1UL); /* set reload register */
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SysTick->VAL = 0UL; /* Load the SysTick Counter Value */
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SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk; /* Enable the Systick Timer */
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}
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void delayMs(uint16_t delay)
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{
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uint16_t i = 0;
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while (delay)
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{
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if ((SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk) != 0U)
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{
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delay--;
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}
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}
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}
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