基于DSP的GPGGA定位数据提取源程序(代码)

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1、温泉源：基于DSP的GPGGA定位数据提取基于DSP的GPGGA定位数据提取源程序（完整）附录源程序#include#include"mmdrv.h"#include"mcbsp.h"//串口头文件#include"cpu_reg.h"#include"lcd_86.h"#defineuint16unsignedint#defineuint8unsignedcharioportunsignedportefff;#defineIO_374portefffvoidinit_exint1_interrupt();voidinit_GPIO(void);voiduart

2、_rece_data_parse(void);//数据解析函数voiduart_trans(void);voiduart_trans_byte(unsignedintdata);unsignedintflag=0xffff;chartx_re_buf[1]={0x38};/*************************************************//*welcomeinterface*//*************************************************/voiddisplay(){LCD_clear(0);cur_row=

3、0;cur_col=50;LCD_pr_chars("ParseGPGGAdata",20);cur_row=1;cur_col=0;LCD_pr_chars("*********************",22);cur_row=2;cur_col=0;LCD_pr_chars("Presskey1:tm,lat,lon,hght",26);cur_row=3;cur_col=0;LCD_pr_chars("Presskey2:formoredata",25);cur_row=4;cur_col=11;LCD_pr_chars("pleaseworkharder",25);}v

4、oidmain(void){unsignedintkey_val;unsignedinti,j;SWWSR=0x7fff;SWCR=0x0001;BSCR=0x8006;CLKMD=PLL_DIV_INIT;waitloop(0x0400);CLKMD=PLL_LOCK_INIT_X(14);waitloop(0x0400);PMST=0x0168;IO_374=0xffff;//374enableinit_exint1_interrupt();init_GPIO();init_lcd();display();//显示菜单Close_LED_sign();Close_LED_Da

5、ta();Close_LED_Traf();waitloop(0x0400);while(1){flag=0xffff;/*消抖*/i=Get_Key();waitloop(0x040000L);j=Get_Key();if(i==j){key_val=j;/*保存key_val*/while(Get_Key()){asm("tnop");//waitblank_key}}switch(key_val){default:break;case1:LCD_clear(0);//清屏uart_rece_data_parse();//提取海拔，时间，纬度，经度break;case17:

6、display();break;}}}/*************************************************//*initialinterrrupt*//*************************************************/voidinit_exint1_interrupt(){IFR=0xffff;IMR=0x0002;//TINT=IMR.3EXINT1=IMR.1asm("trsbxtintm");}interruptvoidEXINT1_isr(){Close_LED_sign();Close_LED_Dat

7、a();Close_LED_Traf();{asm("tnop");//中断处理函数asm("tnop");}flag=0;cur_row=7;cur_col=15;LCD_pr_chars("Uart_Stop",17);}/*************************************************//*initialGPIO*//*************************************************/voidinit_G