stm32F1外部脉冲计数(库函数实现)(共7页).docx

主函数#include stm32f10x.h#include timer.h#include led.h#include delay.h#include oled.h#include sys.hint main(void) u16 t=0; delay_init(); LED_Init(); TIM3_PWM_Init(9999,719); TIM2_Excnt_Init(10); OLED_Init(); NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); OLED_ShowString(20,0,EXCNT_TEST,16); OLED_Refresh_Gram(); TIM_SetCompare2(TIM3,1000); while(1) delay_ms(1);t=TIM_GetCounter(TIM2); OLED_ShowNum(20,30,t,6,16);