gps.lst

用avr单片机接收GPS的数据的ｃ语言程序

__text_start:
__start:
    011A E5CF      LDI	R28,0x5F
    011B E0D8      LDI	R29,0x8
    011C BFCD      OUT	0x3D,R28
    011D BFDE      OUT	0x3E,R29
    011E 51C0      SUBI	R28,0x10
    011F 40D0      SBCI	R29,0
    0120 EA0A      LDI	R16,0xAA
    0121 8308      STD	Y+0,R16
    0122 2400      CLR	R0
    0123 E6E0      LDI	R30,0x60
    0124 E0F0      LDI	R31,0
    0125 E015      LDI	R17,5
    0126 33E9      CPI	R30,0x39
    0127 07F1      CPC	R31,R17
    0128 F011      BEQ	0x012B
    0129 9201      ST	R0,Z+
    012A CFFB      RJMP	0x0126
    012B 8300      STD	Z+0,R16
    012C E3E4      LDI	R30,0x34
    012D E0F2      LDI	R31,2
    012E E6A0      LDI	R26,0x60
    012F E0B0      LDI	R27,0
    0130 E012      LDI	R17,2
    0131 33E4      CPI	R30,0x34
    0132 07F1      CPC	R31,R17
    0133 F021      BEQ	0x0138
    0134 95C8      LPM
    0135 9631      ADIW	R30,1
    0136 920D      ST	R0,X+
    0137 CFF9      RJMP	0x0131
    0138 940E013B  CALL	_main
_exit:
    013A CFFF      RJMP	_exit
FILE: E:\Program\gps\main.c
(0001) /*
(0002) ###############################################################################
(0003) Include Part
(0004) ###############################################################################
(0005) */
(0006) #include <iom32v.h>		// mega16 register definition file
(0007) #include <lcd.h>	// LCD driver file
(0008) #include "def.h"		// Type definition file
(0009) #include <macros.h>
(0010) #include <serial.h>      //serial port driver file
(0011) 
(0012) 
(0013) /*
(0014) ##############################################################
(0015) define part
(0016) ##############################################################
(0017) */
(0018)  //   char  rcv_buf[1024];  
(0019)     char time[10];
(0020) 	char status;
(0021) 	char latitude[9];
(0022) 	char NSind;
(0023) 	char longtitude[10];
(0024)    	char EWind;
(0025) 	char date[6];
(0026) 
(0027) 	
(0028) /*
(0029) ###############################################################################
(0030) Function Prototype Definition Part
(0031) ###############################################################################
(0032) */
(0033) void port_init(void);
(0034) void init_devices(void);
(0035) void GpsDataParse(void);
(0036) void Parse (void);
(0037) //void convert (void);
(0038) 
(0039) 
(0040) 
(0041) /*
(0042) ###############################################################################
(0043) Function Implementation Part
(0044) ###############################################################################
(0045) */
(0046) void main (void)
(0047) {
(0048)     int i=0;
_main:
  i                    --> R20
    013B 2744      CLR	R20
    013C 2755      CLR	R21
(0049)     //initial the MCU
(0050)     init_devices();
    013D D013      RCALL	_init_devices
    013E C003      RJMP	0x0142
(0051)     while (1)
(0052)    {
(0053) 	//  for (i=0;i<3000;i++);
(0054) 	  GpsDataParse();   //get data
    013F D01B      RCALL	_GpsDataParse
(0055) 	  display();   //display
    0140 940E028C  CALL	_display
    0142 CFFC      RJMP	0x013F
    0143 9508      RET
(0056)    }
(0057) 
(0058) }
(0059) 
(0060) 
(0061) void port_init(void)
(0062) {
(0063)     PORTA = 0x00;
_port_init:
    0144 2422      CLR	R2
    0145 BA2B      OUT	0x1B,R2
(0064)  	DDRA  = 0xFC;
    0146 EF8C      LDI	R24,0xFC
    0147 BB8A      OUT	0x1A,R24
(0065)  	PORTB = 0x00;
    0148 BA28      OUT	0x18,R2
(0066)  	DDRB  = 0x00;
    0149 BA27      OUT	0x17,R2
(0067)  	PORTC = 0x00; //m103 output only
    014A BA25      OUT	0x15,R2
(0068)  	DDRC  = 0x83;
    014B E883      LDI	R24,0x83
    014C BB84      OUT	0x14,R24
(0069)  	PORTD = 0x00;
    014D BA22      OUT	0x12,R2
(0070)  	DDRD  = 0x9C;
    014E E98C      LDI	R24,0x9C
    014F BB81      OUT	0x11,R24
    0150 9508      RET
(0071) }
(0072) 
(0073) //call this routine to initialize all peripherals
(0074) void init_devices(void)
(0075) {
(0076)  	//stop errant interrupts until set up
(0077)  	CLI(); //disable all interrupts
_init_devices:
    0151 94F8      BCLR	7
(0078)  	port_init();
    0152 DFF1      RCALL	_port_init
(0079) 	uart0_init();
    0153 940E0207  CALL	_uart0_init
(0080) 
(0081)  	MCUCR = 0x00;
    0155 2422      CLR	R2
    0156 BE25      OUT	0x35,R2
(0082)  	GICR  = 0x00;
    0157 BE2B      OUT	0x3B,R2
(0083)  	TIMSK = 0x00; //timer interrupt sources
    0158 BE29      OUT	0x39,R2
(0084)  	//all peripherals are now initialized
(0085) 	SEI();
    0159 9478      BSET	7
    015A 9508      RET
_GpsDataParse:
  head                 --> Y+0
  temp                 --> R20
    015B 940E0726  CALL	push_gset1
    015D 9723      SBIW	R28,3
(0086) }
(0087) void GpsDataParse(void)
(0088) {
(0089)     char head[3];
(0090)     char temp;
(0091) 	
(0092) 	      //CLI();
(0093) 		  temp=Read_buf();
    015E 940E025C  CALL	_Read_buf
    0160 2F40      MOV	R20,R16
    0161 C003      RJMP	0x0165
(0094)           while (temp != '$')
(0095) 		      temp=Read_buf();
    0162 940E025C  CALL	_Read_buf
    0164 2F40      MOV	R20,R16
    0165 3244      CPI	R20,0x24
    0166 F7D9      BNE	0x0162
(0096)     
(0097) 		  temp=Read_buf();//first and second character are "GPXXX"
    0167 940E025C  CALL	_Read_buf
(0098) 		  temp=Read_buf();
    0169 940E025C  CALL	_Read_buf
    016B 2F40      MOV	R20,R16
(0099) 	
(0100) 		  //get the header
(0101) 		  head[0]=Read_buf();
    016C 940E025C  CALL	_Read_buf
    016E 8308      STD	Y+0,R16
(0102) 		  head[1]=Read_buf();
    016F 940E025C  CALL	_Read_buf
    0171 8309      STD	Y+1,R16
(0103) 		  head[2]=Read_buf();
    0172 940E025C  CALL	_Read_buf
    0174 830A      STD	Y+2,R16
(0104) 		  if(head[0]=='R' && head[1]=='M' && head[2]=='C')
    0175 8188      LDD	R24,Y+0
    0176 3582      CPI	R24,0x52
    0177 F431      BNE	0x017E
    0178 8189      LDD	R24,Y+1
    0179 348D      CPI	R24,0x4D
    017A F419      BNE	0x017E
    017B 3403      CPI	R16,0x43
    017C F409      BNE	0x017E
(0105) 		  {
(0106) 		  Parse ();
    017D D004      RCALL	_Parse
(0107) 		  return ;
    017E 9623      ADIW	R28,3
    017F 940E0729  CALL	pop_gset1
    0181 9508      RET
_Parse:
  i                    --> R20
  temp                 --> R22
    0182 940E0724  CALL	push_gset2
(0108) 		  }
(0109) }
(0110) 
(0111) /**********************************************************************
(0112) *             get information from GPRMC
(0113) *Description: need array to place time,date, latitude,longtitude
(0114)               size of the array
(0115) ************************************************************************/
(0116) void Parse (void)
(0117) {
(0118)     char temp;
(0119) 	int i=0;
    0184 2744      CLR	R20
    0185 2755      CLR	R21
(0120) 	
(0121) 	//read time
(0122) 	temp=Read_buf();// jump over ','
    0186 940E025C  CALL	_Read_buf
(0123) 	temp=Read_buf();
    0188 940E025C  CALL	_Read_buf
    018A 2F60      MOV	R22,R16
    018B C00C      RJMP	0x0198
(0124) 	while(i<10)
(0125) 	{
(0126) 	    time[i++]=temp;
    018C 011A      MOVW	R2,R20
    018D 5F4F      SUBI	R20,0xFF
    018E 4F5F      SBCI	R21,0xFF
    018F E78C      LDI	R24,0x7C
    0190 E090      LDI	R25,0
    0191 01F1      MOVW	R30,R2
    0192 0FE8      ADD	R30,R24
    0193 1FF9      ADC	R31,R25
    0194 8360      STD	Z+0,R22
(0127) 		temp=Read_buf();
    0195 940E025C  CALL	_Read_buf
    0197 2F60      MOV	R22,R16
    0198 304A      CPI	R20,0xA
    0199 E0E0      LDI	R30,0
    019A 075E      CPC	R21,R30
    019B F384      BLT	0x018C
(0128) 	}
(0129) 
(0130) //    convert ();	
(0131) 	//read status
(0132) 	status=Read_buf();
    019C 940E025C  CALL	_Read_buf
    019E 9300007B  STS	status,R16
(0133) 	if (status=='V')
    01A0 3506      CPI	R16,0x56
    01A1 F409      BNE	0x01A3
(0134) 	return;
    01A2 C061      RJMP	0x0204
(0135) 	
(0136) 	//read latitude
(0137) 	temp=Read_buf();//read the ','
    01A3 940E025C  CALL	_Read_buf
    01A5 2F60      MOV	R22,R16
(0138) 	i=0;
    01A6 2744      CLR	R20
    01A7 2755      CLR	R21
    01A8 C00F      RJMP	0x01B8
(0139) 	while(i<9)
(0140) 	latitude[i++]=Read_buf();
    01A9 011A      MOVW	R2,R20
    01AA 5F4F      SUBI	R20,0xFF
    01AB 4F5F      SBCI	R21,0xFF
    01AC 922F      PUSH	R2
    01AD 923F      PUSH	R3
    01AE 940E025C  CALL	_Read_buf
    01B0 903F      POP	R3
    01B1 902F      POP	R2
    01B2 E782      LDI	R24,0x72
    01B3 E090      LDI	R25,0
    01B4 01F1      MOVW	R30,R2
    01B5 0FE8      ADD	R30,R24
    01B6 1FF9      ADC	R31,R25
    01B7 8300      STD	Z+0,R16
    01B8 3049      CPI	R20,0x9
    01B9 E0E0      LDI	R30,0
    01BA 075E      CPC	R21,R30
    01BB F36C      BLT	0x01A9
(0141) 	
(0142) 	//read NSindicator
(0143)     temp=Read_buf();//read the ','
    01BC 940E025C  CALL	_Read_buf
(0144) 	NSind=Read_buf();	
    01BE 940E025C  CALL	_Read_buf
    01C0 93000071  STS	NSind,R16
(0145)     temp=Read_buf();//read the ','
    01C2 940E025C  CALL	_Read_buf
    01C4 2F60      MOV	R22,R16
(0146) 	
(0147) 	//read longtitude
(0148) 	i=0;
    01C5 2744      CLR	R20
    01C6 2755      CLR	R21
    01C7 C00F      RJMP	0x01D7
(0149) 	while(i<10)
(0150) 	longtitude[i++]=Read_buf();
    01C8 011A      MOVW	R2,R20
    01C9 5F4F      SUBI	R20,0xFF
    01CA 4F5F      SBCI	R21,0xFF
    01CB 922F      PUSH	R2
    01CC 923F      PUSH	R3
    01CD 940E025C  CALL	_Read_buf
    01CF 903F      POP	R3
    01D0 902F      POP	R2
    01D1 E687      LDI	R24,0x67
    01D2 E090      LDI	R25,0
    01D3 01F1      MOVW	R30,R2
    01D4 0FE8      ADD	R30,R24
    01D5 1FF9      ADC	R31,R25
    01D6 8300      STD	Z+0,R16
    01D7 304A      CPI	R20,0xA
    01D8 E0E0      LDI	R30,0
    01D9 075E      CPC	R21,R30
    01DA F36C      BLT	0x01C8
(0151) 	
(0152) 	//read EWindicator
(0153) 	temp=Read_buf();//read the ','
    01DB 940E025C  CALL	_Read_buf
    01DD 2F60      MOV	R22,R16
(0154) 	EWind=Read_buf();	
    01DE 940E025C  CALL	_Read_buf
    01E0 93000066  STS	EWind,R16
(0155) 	i=0;
    01E2 2744      CLR	R20
    01E3 2755      CLR	R21
    01E4 C00B      RJMP	0x01F0
(0156) 	while (i<3)
(0157) 	{
(0158) 	 	temp=Read_buf();//read the ','  
    01E5 940E025C  CALL	_Read_buf
    01E7 2F60      MOV	R22,R16
    01E8 C003      RJMP	0x01EC
(0159) 	    while (temp!=',')
(0160) 		temp=Read_buf();
    01E9 940E025C  CALL	_Read_buf
    01EB 2F60      MOV	R22,R16
    01EC 326C      CPI	R22,0x2C
    01ED F7D9      BNE	0x01E9
(0161) 		i++;
    01EE 5F4F      SUBI	R20,0xFF
    01EF 4F5F      SBCI	R21,0xFF
    01F0 3043      CPI	R20,3
    01F1 E0E0      LDI	R30,0
    01F2 075E      CPC	R21,R30
    01F3 F38C      BLT	0x01E5
(0162) 	}
(0163)     for (i=0;i<6;i++)
    01F4 2744      CLR	R20
    01F5 2755      CLR	R21
(0164) 	{
(0165) 	    date[i]=Read_buf();
    01F6 940E025C  CALL	_Read_buf
    01F8 E680      LDI	R24,0x60
    01F9 E090      LDI	R25,0
    01FA 01FA      MOVW	R30,R20
    01FB 0FE8      ADD	R30,R24
    01FC 1FF9      ADC	R31,R25
    01FD 8300      STD	Z+0,R16
    01FE 5F4F      SUBI	R20,0xFF
    01FF 4F5F      SBCI	R21,0xFF
    0200 3046      CPI	R20,6
    0201 E0E0      LDI	R30,0
    0202 075E      CPC	R21,R30
    0203 F394      BLT	0x01F6
    0204 940E0718  CALL	pop_gset2
    0206 9508      RET
FILE: E:\Program\gps\serial.c
(0001) //ICC-AVR application builder : 2006-5-8 20:10:07
(0002) // Target : M16
(0003) // Crystal: 8Mhz
(0004) 
(0005) #include <iom32v.h>
(0006) #include <macros.h>
(0007) #include <serial.h>
(0008) 
(0009) #define  max 1024
(0010) 
(0011) /* Static Variables */
(0012) int         count;
(0013) char  		rcv_buf[max];
(0014) int         UART_wp;//write data to receive buffer
(0015) int         read_pt;//read pointer: read data from receive buffer
(0016) 
(0017) 
(0018) //UART0 initialize
(0019) // desired baud rate: 4800
(0020) // actual: baud rate:4800 (0.0%)
(0021) // char size: 8 bit
(0022) // parity: Disabled
(0023) void uart0_init(void)
(0024) {