clk.rar_NIOSII_de2_nios

#include <io.h> #include "system.h" int buf[17]={0}; void write(int data) { while(!(IORD(SPI_0_BASE,2)&0x40)); IOWR(SPI_0_BASE,1,data); } void spi_led(int data_1,int data_2,int data_3) { IOWR(SPI_0_BASE,1,0x800+(data_1&0x0f)); IOWR(SPI_0_BASE,1,0x900+((data_1&0xf0)>>4)); IOWR(SPI_0_BASE,1,0x0a00+(data_2&0x0f)+data_3); IOWR(SPI_0_BASE,1,0x0b00+((data_2&0xf0)>>4)); } int main(void) { IOWR(SPI_0_BASE,1,0x201); write(0x413); write(0x5c0); int year1=0x06,year2=0x20,mon=0x12,day=0x30,hou=0x23,min=0x59,sec=0x35,hse=0,flg=14,flg1=14,flg2=30,k,i=3,j; int led[16]={0xfc0,0xfe0,0xfd0,0xff0,0xfc4,0xfe4,0xfd4,0xff4,0xfc2,0xfe2,0xfd2,0xff2,0xfc6,0xfe6,0xfd6,0xff6}; IOWR(TIMER_0_BASE,1,6); while(1) { if(IORD(TIMER_0_BASE,0)&1) { if(++hse==2) { hse=0;++sec; } if((sec&0xf)==0xa) sec+=6; if(sec>=0x60) { sec=0;++min; } if((min&0xf)==0xa) min+=6; if(min>=0x60) { min=0;++hou; } if((hou&0xf)==0xa) hou+=6; if(hou>=0x24) { hou=0;++day; } if((day&0xf)==0xa) day+=6; if(day>=0x31) { day=1;++mon; } if((mon&0xf)==0xa) mon+=6; if(mon>=0x13) { mon=1;++year1; } if((year1&0xf)==0xa) year1+=6; if(year1>=0x0a0) { year1=0;++year2; } if((year2&0xf)==0xa) year2+=6; if(year2>=0x0a0) { year2=0; } IOWR(TIMER_0_BASE,0,0); // 清除时间到标志 } IOWR(SPI_0_BASE,1,0x000); k=IORD(SPI_0_BASE,0); if(!IORD(SPI_0_BASE,0)) { IOWR(SPI_0_BASE,1,0x700); IOWR(SPI_0_BASE,1,0x000); k=IORD(SPI_0_BASE,0); } while(!IORD(SPI_0_BASE,2)&0x40); for(j=0;j<16;j++) { if(!(k-led[j])) {flg=j;j=17;} } if(flg>=0 && flg<=9) {flg1=9;} else {flg1=flg;} if(flg1>=12 && flg1<=15) flg2=flg; switch(flg1) { case 9: //0...9 { if((!(k-led[flg]))&&(i<=16)) { buf[i]=flg; write(0x000); i++; write(0x800+buf[i-1]); write(0x900+buf[i-2]); write(0x0a00+buf[i-3]); write(0x0b00+buf[i-4]); } break; } case 10: //A删除 { if(i>3) { i--; write(0x800+buf[i-1]); write(0x900+buf[i-2]); write(0x0a00+buf[i-3]); write(0x0b00+buf[i-4]); flg=14; } flg=flg2; break; } case 11: //B确认 { if(i==17) { year1=(buf[5]<<4)+buf[6]; year2=buf[4]+(buf[3]<<4); mon=buf[8]+(buf[7]<<4); day=buf[10]+(buf[9]<<4); hou=buf[12]+(buf[11]<<4); min=buf[14]+(buf[13]<<4); sec=buf[16]+(buf[15]<<4); i=3;flg=14; }flg=flg2; break; } case 12: //C 年 { if(i==3) { IOWR(SPI_0_BASE,1,(0x800+(year1&0x0f))); IOWR(SPI_0_BASE,1,(0x900+((year1&0x0f0)>>4))); IOWR(SPI_0_BASE,1,(0x0a00+(year2&0x0f))); IOWR(SPI_0_BASE,1,(0x0b00+((year2&0x0f0)>>4))); } break; } case 13: //D 月日 { if(i==3) spi_led(day,mon,0x80); break; } case 14: //E 时分 { if(i==3) spi_led(min,hou,(hse<<7)); break; } case 15: //F 分秒 { if(i==3) spi_led(sec,min,0x80); break; } } } }