进入中断后不会接收GPS的字符串（注释掉的是51的程序，可用，在STM32中不可用；；；为注释的是学习别人的，，能进入中断，不知道如何接收数据）

Holmess · 发表于 2015-8-21 18:52:22

[mw_shl_code=c,true]51里面是一个比特一个比特接收的，，所有就将字符串替换就好了，现在不清楚STM32中是一下子全部接收，还是和51一样。。还有请问错误在哪里。[/mw_shl_code] [mw_shl_code=c,true]我的目标是：GPS[num_GPS]能够存放数据，然后在主函数里处理。 [mw_shl_code=c,true]num_GPS最大为80[/mw_shl_code] [/mw_shl_code] [mw_shl_code=c,true]数据格式：[/mw_shl_code] [mw_shl_code=c,true]$GPGGA,015842.00,3211.86627,N,11927.6919 5,E,1,08,1.27,11.7,M ,4.4,M,,*5F $GPGSA,A,3,10,06,17,02,09,12,23,05,,,,,2.78,1.27,2.47*07 $GPGSV,4,1,13,02,44,306,45,05,29,229,37,06,59,018,41,09,37,085,28*77 $GPGSV,4,2,13,10,86,279,37,12,30,292,43,17,47,130,37,18,,,34*49 $GPGSV,4,3,13,20,00,048,,22,,,29,23,20,054,29,25,,,33*77 $GPGSV,4,4,13,42,46,144,31*4C $GPGLL,3211.86627,N,11927.69195,E,015842.00,A,A*61 $GPRMC,015843.00,A,3211.86630,N,11927.69205,E,0.017,,111214,,,A*75 $GPVTG,,T,,M,0.017,N,0.032,K,A*24 [/mw_shl_code] [mw_shl_code=c,true] [/mw_shl_code] [mw_shl_code=c,true]void UART4_IRQHandler(void) { // GPS[num_GPS]=SBUF; // // if(GPS[0]=='$') // { // printf("77777\r\n");delay_ms(100); // if(GPS[num_GPS]=='*') //有这个停止接收 // { // GPS_Data_Unreceive(); // GPS[num_GPS]='\0'; // flag_GPS=1; // num_GPS=0; // } // else // num_GPS++; //???????????? // } // else // { // num_GPS=0; // } [/mw_shl_code] [mw_shl_code=c,true] [/mw_shl_code] [mw_shl_code=c,true] u8 res; // #ifdef OS_CRITICAL_METHOD //????OS_CRITICAL_METHOD?¨????,???÷????ucosII??. // OSIntEnter(); // #endif if(UART4->SR&(1<<5))//?????????? { printf("8888\r\n");delay_ms(100); //程序可运行到这一步 res=UART4->DR; if((UART4_RX_STA&0x8000)==0)//???????ê?? { printf("9999\r\n");delay_ms(100); if(UART4_RX_STA&0x4000)//???????? { printf("101010\r\n");delay_ms(100); // if(res!=0x0a)USART_RX_STA=0;//?????í?ó,???????? // else UART4_RX_STA|=0x8000; //?????ê???? } else //????????0X0D { printf("12121212\r\n");delay_ms(100); if(res==0x2A) {if(UART4_RX_BUF[(UART4_RX_STA&0X3FFF)-1]==0x41) UART4_RX_STA|=0x4000; ////////????????,?á??·? ,,,A* for(num_GPS=-1;num_GPS<80;num_GPS++) { GPS[num_GPS]=UART4_RX_BUF[num_GPS]; printf("131313131\r\n");delay_ms(100); } } else { UART4_RX_BUF[USART_RX_STA&0X3FFF]=res; UART4_RX_STA++; if(UART4_RX_STA>(200-1))UART4_RX_STA=0;//?????????í?ó,???????????? } } } } } [/mw_shl_code]