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#include "SWM221.h"
int main(void)
{
uint32_t i;
SystemInit();
GPIO_Init(GPIOA, PIN3, 1, 0, 0, 0); //模拟外部被计数信号
GPIO_Init(GPIOA, PIN5, 1, 0, 0, 0); //GPIOA.5 => LED
PORT_Init(PORTA, PIN14, PORTA_PIN14_TIMR0_IN, 1); //连接外部被计数信号，PA3 => PA14
PORTA->PULLU |= (1 << PIN14);
TIMR_Init(TIMR0, TIMR_MODE_COUNTER, 1, 3, 1); //每计3个上升沿进入中断
TIMR_Start(TIMR0);
while(1==1)
GPIO_InvBit(GPIOA, PIN3);
for(i = 0; i < CyclesPerUs*1000; i++) __NOP();
}
void TIMR0_Handler(void)
TIMR_INTClr(TIMR0);
GPIO_InvBit(GPIOA, PIN5);