c_key.rar_嵌入式跑马灯

#include <stdarg.h> #include <string.h> #include <stdlib.h> #include <stdio.h> #include <ctype.h> #define GPF5_out (1<<(5*2)) #define GPF6_out (1<<(6*2)) #define GPF7_out (1<<(7*2)) #define GPF4_out (1<<(4*2)) #define GPF0_in ~(3<<(0*2)) #define GPF1_in ~(3<<(1*2)) #define GPF2_in ~(3<<(2*2)) #define GPF3_in ~(3<<(3*2)) #define GPG3_in ~(3<<(3*2)) #define GPG11_in ~(3<<(11*2)) #define rGPFCON (*(volatile unsigned *)0x56000050) #define rGPFDAT (*(volatile unsigned *)0x56000054) #define rGPFUP (*(volatile unsigned *)0x56000058) #define rGPGCON (*(volatile unsigned *)0x56000060) #define rGPGDAT (*(volatile unsigned *)0x56000064) #define rGPGUP (*(volatile unsigned *)0x56000068) void _ENTRY(void); //EXPORT Main; int Main() { unsigned long dwDat; rGPFCON = GPF4_out|GPF5_out|GPF6_out|GPF7_out; //rGPFCON = GPF0_in & GPF1_in; //rGPFCON = GPF2_in & GPF3_in; //rGPGCON = GPG3_in & GPG11_in; while(1) { rGPFDAT |= (1<<7); dwDat=rGPGDAT; if(dwDat & (1<<11)) { rGPFDAT |= (1<<4); } else { rGPFDAT &= ~(1<<4); } if(dwDat & (1<<3)) { rGPFDAT |= (1<<5); } else { rGPFDAT &= ~(1<<5); } dwDat=rGPFDAT; if(dwDat & (1<<3)) { rGPFDAT |= (1<<4); rGPFDAT |= (1<<5); } else { rGPFDAT &= ~(1<<4); rGPFDAT &= ~(1<<5); } if(dwDat & (1<<2)) { rGPFDAT |= (1<<6); } else { rGPFDAT &= ~(1<<6); } dwDat=rGPFDAT; if(dwDat & (1<<1)) { rGPFDAT |= (1<<6); rGPFDAT |= (1<<4); } else { rGPFDAT &= ~(1<<4); rGPFDAT &= ~(1<<6); } if(dwDat & (1<<0)) { rGPFDAT |= (1<<6); rGPFDAT |= (1<<5); } else { rGPFDAT &= ~(1<<6); rGPFDAT &= ~(1<<5); } } return 0; }