#include "SPCE061.h"#define count0 0xffffff;#define count1 0xfff;int main(){ unsigned long int Delay; //设置B口为同相低电平输出 *P_IOA_Dir =0xffff; *P_IOA_Attrib =0xffff; *P_IOA_Data =0;
Delay=5000; while(Delay--);
*P_IOA_Data =0xffff; while(1) { *P_Watchdog_Clear=1; Delay=count0; while(Delay--); }}为什么输出是方波
#include "SPCE061.h"#define count0 0xffffff;#define count1 0xfff;int main(){ unsigned long int Delay; //设置B口为同相低电平输出 *P_IOA_Dir =0xffff; *P_IOA_Attrib =0xffff; *P_IOA_Data =0;
Delay=5000; while(Delay--);
*P_IOA_Data =0xffff; while(1) { *P_Watchdog_Clear=1; Delay=count0; while(Delay--); }}