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37 lines
840 B
37 lines
840 B
#include "main.h"
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/* 微秒 阻塞硬延时 */
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extern void for_delay_us(uint32_t us);
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extern void HAL_Delay_us(uint16_t us);
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void for_delay_us(uint32_t us)
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{
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/* 阻塞 硬延时*/
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uint32_t Delay = us * 168 ;
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for (size_t i = 0; i < Delay; i++);
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}
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void HAL_Delay_us(uint16_t us)
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{
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// uint16_t differ = 0xffff - us - 5; // 设定定时器计数器起始值
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// __HAL_TIM_SET_COUNTER(&htim6, differ);
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// HAL_TIM_Base_Start(&htim6); // 启动定时器
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// while (differ < 0xffff - 6) // 补偿，判断
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// {
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// differ = __HAL_TIM_GET_COUNTER(&htim6); // 查询计数器的计数值
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// }
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// HAL_TIM_Base_Stop(&htim6);
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}
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// void HAL_Delay_us(uint16_t us)
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// {
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// uint16_t startCnt = __HAL_TIM_GET_COUNTER(&htim6);
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// while ((__HAL_TIM_GET_COUNTER(&htim6) - startCnt) <= us);
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// }
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