发布时间 : 星期三 文章基于单片机的语音报价电子称的设计更新完毕开始阅读684f56c9d1d233d4b14e852458fb770bf68a3b4d
}
}
SCK = 1; temp = temp<<1; SCK = 0; if(DOUT)
temp++;
SCK = 1;
temp = temp^0x800000; temp = 0x800000-temp; SCK = 0; count++; return temp;
// delayms(100); void delay(unsigned int i) { }
unsigned char key_scan(void) {
unsigned char get_port = 0; unsigned char temp = 16; Key_port = 0xfe;
get_port = Key_port; unsigned int x,y; for(x= 0;x get_port = get_port & 0xf0; { delay(10); get_port = Key_port; get_port = get_port & 0xf0; if(get_port != 0xf0) { if(get_port != 0xf0) } } //if get_port = Key_port; switch(get_port) { } { } get_port = Key_port; get_port = get_port & 0xf0; //while case 0xee:temp=0;break; case 0xde:temp=1;break; case 0xbe:temp=2;break; case 0x7e:temp=3;break; //switch while(get_port != 0xf0) //if Key_port = 0xfd; get_port = Key_port; get_port = get_port & 0xf0; { delay(10); get_port = Key_port; get_port = get_port & 0xf0; if(get_port != 0xf0) { get_port = Key_port; switch(get_port) { } case 0xed:temp=10;break; case 0xdd:temp=4;break; case 0x7d:temp=6;break; //switch if(get_port != 0xf0) case 0xbd:temp=5;break; } } //if while(get_port != 0xf0) { } get_port = Key_port; get_port = get_port & 0xf0; //while //if Key_port = 0xfb; get_port = Key_port; if(get_port != 0xf0) { } delay(10); get_port = get_port & 0xf0; get_port = Key_port; get_port = get_port & 0xf0; if(get_port != 0xf0) { } //if get_port = Key_port; switch(get_port) { } { } get_port = Key_port; get_port = get_port & 0xf0; //while case 0xeb:temp=11;break; case 0xdb:temp=7;break; case 0xbb:temp=8;break; case 0x7b:temp=9;break; //switch while(get_port != 0xf0) //if Key_port = 0xf7; get_port = Key_port; } get_port = get_port & 0xf0; { } delay(10); get_port = Key_port; get_port = get_port & 0xf0; if(get_port != 0xf0) { } get_port = Key_port; switch(get_port) { } { } get_port = Key_port; get_port = get_port & 0xf0; //while case 0xe7:temp=12;break; case 0xd7:temp=13;break; case 0xb7:temp=14;break; case 0x77:temp=15;break; //switch if(get_port != 0xf0) while(get_port != 0xf0) //if //if return temp; void Music(z) { unsigned char i; SHUJU=0; RST=1; for(i=0;i<220;i++);//delay 2ms RST=0; for(i=0;i<220;i++);//delay 2ms while(z>0)