tq2440跑马灯的工程(MDK)

#define GPBCON (*(volatile unsigned *) 0x56000010) #define GPBDAT (*(volatile unsigned *) 0x56000014) #define GPBUP (*(volatile unsigned *) 0x56000018) void delay() { int i, j; for(i = 0; i < 10000; i ++) for(j = 0; j < 50; j ++); } int main() { GPBCON = 0x155555;//配置protB的所有引脚为输出 while(1) { //点亮第一个小灯 GPBDAT |= 0x1E0; GPBDAT &= 0x1C0; delay(); //点亮第二个小灯 GPBDAT |= 0x1E0; GPBDAT &= 0x1A0; delay(); //点亮第三个小灯 GPBDAT |= 0x1E0; GPBDAT &= 0x160; delay(); //点亮第四个小灯 GPBDAT |= 0x1E0; GPBDAT &= 0x0E0; delay(); } return 0; }