📄 f334.lst
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545 {
546 1 ADC0CN = 0x40; // ADC0 disabled; LP tracking
547 1 // mode; ADC0 conversions are initiated
548 1 // on a write to ADBusy
549 1 AMX0P = 0x0a; // Temp sensor selected at + input
550 1 AMX0N = 0x11; // Single-ended mode
C51 COMPILER V8.02 F334 07/13/2006 10:09:54 PAGE 10
551 1
552 1 ADC0CF = (SYSCLK/3000000) << 3; // ADC conversion clock <= 3MHz
553 1
554 1 ADC0CF &= ~0x04; // Make ADC0 right-justified
555 1 REF0CN = 0x0E; // enable temp sensor, VREF = VDD, bias
556 1 // generator is on.
557 1
558 1 //EIE1 |= 0x08; // Enable ADC0 interrupt
559 1 ADC0CN = 0x80;
560 1 AD0BUSY = 1;
561 1 }
562
563
564 void Timer3_ISR (void) interrupt 14 //2.5ms
565 {
566 1 TMR3CN &= ~0x80;
567 1 key_scan_time++;
568 1
569 1 count_time++;
570 1
571 1 key_press_time++;
572 1
573 1 if (LcdBackLight_Delay_AfterS2410>0) LcdBackLight_Delay_AfterS2410--;
574 1 else if (key_zt==99)
575 1 {
576 2 LcdBackLight_Delay_AfterS2410=0;
577 2 BG_EN=0;
578 2 }
579 1
580 1 if ((key_press_time>400) && (key_zt==99))
581 1 {
582 2 BG_EN=1;
583 2 S2410_PWR=1;
584 2 key_press_time=0;
585 2 key_zt=0;
586 2 }
587 1
588 1
589 1 if (key_time>0) key_time--;else key_time=0;
590 1
591 1 test++;
592 1
593 1 if (GPS_Alarm_js>0) GPS_Alarm_js--;else GPS_Alarm_js=0;
594 1
595 1 if (GPS_time>0) GPS_time--;else GPS_time=0;
596 1
597 1 if (FM_delay>0) FM_delay--;else FM_delay=0;
598 1
599 1 }
600
601 void Measure (void)
602 {
603 1 // (X*5-Y)/25=Z X:采样数字 Y:基准(mV) Z:角度
604 1 AMX0P = 0x0a;
605 1 AMX0N = 0x11;
606 1 AD0INT = 0;
607 1 AD0BUSY = 1;
608 1 while (!AD0INT); // Wait for conversion to complete
609 1 AD0INT = 0; // Clear end-of-conversion indicator
610 1 TL_Adresult=ADC0; // Store latest ADC conversion
611 1
612 1 AMX0P = 0x00;
C51 COMPILER V8.02 F334 07/13/2006 10:09:54 PAGE 11
613 1 AMX0N = 0x11;
614 1 AD0INT = 0;
615 1 AD0BUSY = 1;
616 1 while (!AD0INT); // Wait for conversion to complete
617 1 AD0INT = 0; // Clear end-of-conversion indicator
618 1 GPS_Current=ADC0; // Store latest ADC conversion
619 1 }
620
621 //-----------------------------------------------------------------------------
622 // ???3???
623 //-----------------------------------------------------------------------------
624 void Timer3_Init ()
625 {
626 1 TMR3CN = 0x00;
627 1 CKCON |= 0x40;
628 1 TMR3RL = -60000;
629 1 TMR3 = TMR3RL;
630 1 EIE1 |= 0x80;
631 1 TMR3CN |= 0x04;
632 1
633 1 }
634
635
636 //-----------------------------------------------------------------------------
637 // 数模转换初始化
638 //-----------------------------------------------------------------------------
639 void DA_Init (void)
640 {
641 1 IDA0CN = 0xb2; //D/A允许，定时器3溢出触发，1mA满度电流输出
642 1 REF0CN = 0x0E; //使用内部电压基准
643 1 }
644
645
646 /*****************************************
647 * Uart Interrupt
648 *
649 *****************************************/
650 void Rcv_INT(void) interrupt 4
651 {
652 1 unsigned char tmp;
653 1 RI0=0;
654 1 tmp=RecvByte;
655 1 UartBuff=SBUF0;
656 1 RecvByte++;
657 1 if (RecvByte<HeaderLength+1)
658 1 {
659 2 Header[tmp]=UartBuff;
660 2 }
661 1 if(RecvByte==HeaderLength)
662 1 {
663 2 if((Header[0]=='$')&&(Header[1]=='G')&&(Header[2]=='P')&&(Header[3]=='G')&&(Header[4]=='G')&&(Header[5
-]=='A'))
664 2 { //if it is a "$GPGGA" frame
665 3 FrameLength=1;
666 3 }
667 2 else if((Header[0]=='$')&&(Header[1]=='G')&&(Header[2]=='P')&&(Header[3]=='R')&&(Header[4]=='M')&&(Heade
-r[5]=='C'))
668 2 { //if it is a "$GPGGA" frame
669 3 FrameLength=3;
670 3 }
671 2 else
672 2 {
C51 COMPILER V8.02 F334 07/13/2006 10:09:54 PAGE 12
673 3 FrameLength=2; //if it is other frame,discard it
674 3 }
675 2
676 2 }
677 1
678 1 if(FrameLength==2) //deal with other frame
679 1 {
680 2 if(UartBuff==0x0D) CRByte=UartBuff; //received CR
681 2
682 2 if(UartBuff==0x0A) LFByte=UartBuff; //received LF
683 2
684 2 if(CRByte&&LFByte) //received CR and LF,end of frame
685 2 {
686 3 RecvByte=0; //clear byte counter
687 3 FrameLength=0; //clear frame length
688 3 CRByte=0; //clear CR byte
689 3 LFByte=0; //clear LF byte
690 3
691 3 for (ii=0;ii<9;ii++) // Longitude
692 3 {
693 4 Longitude[ii]=0x30;
694 4 }
695 3 for (ii=0;ii<10;ii++) // Latitude
696 3 {
697 4 Latitude[ii]=0x30;
698 4 }
699 3
700 3 DGPS=0x30;
701 3
702 3 for (ii=0;ii<4;ii++) // HDOP
703 3 {
704 4 HDOP[ii]=0x30;
705 4 }
706 3 //IsGpsFrame=1;
707 3 //gps_ok=99;
708 3 }
709 2 }
710 1
711 1 if(FrameLength==1) //deal with the "$GPGGA" frame
712 1 {
713 2 if((RecvByte>7)&&(RecvByte<18)) UTCtime[tmp-7]=UartBuff; //received UTCtime
714 2
715 2 if((RecvByte==20)&&(UartBuff==',')) FrameLength=2;//????,???????,???????
716 2 if((RecvByte>18)&&(RecvByte<28)) Longitude[tmp-18]=UartBuff; //received jing du
717 2
718 2 if((RecvByte>30)&&(RecvByte<41)) Latitude[tmp-30]=UartBuff; //received wei du
719 2
720 2 if (RecvByte==44) DGPS=UartBuff;
721 2
722 2 if((RecvByte>45)&&(RecvByte<48)) weixing[tmp-45]=UartBuff; //received weixing ge shu
723 2
724 2 else if ((RecvByte>48)&&(RecvByte<53)&&(UartBuff!=','))
725 2 {
726 3 HDOP[tmp-48]=UartBuff;
727 3 }
728 2
729 2 if(RecvByte>60) //52
730 2 {
731 3 if(UartBuff==0x0D) CRByte=UartBuff; //received CR
732 3
733 3 if(UartBuff==0x0A) LFByte=UartBuff; //receive
734 3
C51 COMPILER V8.02 F334 07/13/2006 10:09:54 PAGE 13
735 3 if(CRByte&&LFByte) //received CR and LF,end of frame
736 3 {
737 4 RecvByte=0; //clear byte counter
738 4 FrameLength=0; //clear frame length
739 4 CRByte=0; //clear CR byte
740 4 LFByte=0; //clear LF byte
741 4 IsGpsFrame=1;
742 4 gps_ok=99;
743 4 }
744 3 }
745 2 }
746 1
747 1 if(FrameLength==3) //deal with the "$GPGGA" frame
748 1 {
749 2 if((RecvByte>55)&&(RecvByte<62)) riqi[tmp-55]=UartBuff; //received Data
750 2
751 2 if(RecvByte>62) //52
752 2 {
753 3 if(UartBuff==0x0D) CRByte=UartBuff; //received CR
754 3
755 3 if(UartBuff==0x0A) LFByte=UartBuff; //receive
756 3
757 3 if(CRByte&&LFByte) //received CR and LF,end of frame
758 3 {
759 4 RecvByte=0; //clear byte counter
760 4 FrameLength=0; //clear frame length
761 4 CRByte=0; //clear CR byte
762 4 LFByte=0; //clear LF byte
763 4 //IsGpsFrame=1;
764 4 //gps_ok=99;
765 4 }
766 3 }
767 2 }
768 1
769 1 TI0=0;
770 1 }
771
772 void Send_GPS(void)
773 {
774 1 unsigned char i;
775 1 unsigned char CK1;
776 1 unsigned char CK2;
777 1 short int j=0;
778 1
779 1 STI=0;
780 1 j=j+'$';
781 1 CCF1=1;
782 1 TDR='$';
783 1 while(!STI); //send startup signal:$SJQQB,
784 1 STI=0;
785 1
786 1 j=j+'S';
787 1 CCF1=1;
788 1 TDR='S';
789 1 while(!STI);
790 1 STI=0;
791 1
792 1 j=j+'J';
793 1 CCF1=1;
794 1 TDR='J';
795 1 while(!STI);
796 1 STI=0;
C51 COMPILER V8.02 F334 07/13/2006 10:09:54 PAGE 14
797 1
798 1 j=j+'Q';
799 1 CCF1=1;
800 1 TDR='Q';
801 1 while(!STI);
802 1 STI=0;
803 1
804 1 j=j+'Q';
805 1 CCF1=1;
806 1 TDR='Q';
807 1 while(!STI);
808 1 STI=0;
809 1
810 1 j=j+'C';
811 1 CCF1=1;
812 1 TDR='C';
813 1 while(!STI);
814 1 STI=0;
815 1
816 1 j=j+',';
817 1 CCF1=1;
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