ms级延时
示例1
include <stdio.h> #include <sys/select.h> static void sleep_ms(unsigned int secs) { struct timeval tval; tval.tv_sec=secs/1000; tval.tv_usec=(secs*1000)%1000000; select(0,NULL,NULL,NULL,&tval); }
如延时0.3s
sleep_ms(300)
us级延时
include <stdio.h> #include <sys/select.h> static void sleep_us(unsigned int secs) { struct timeval tval; tval.tv_sec=secs/1000000; tval.tv_usec=(secs)%1000000; select(0,NULL,NULL,NULL,&tval); }
如延时300us
sleep_us(300)
其它延时程序:
https://blog.csdn.net/u011170660/article/details/38587943
https://blog.csdn.net/lisayh/article/details/76684750