藍(lán)牙電話網(wǎng)關(guān)系統(tǒng)綜合開嵌入式實(shí)驗(yàn)報(bào)告

1、11 / 11文檔可自由編輯打印嵌入式系統(tǒng)實(shí)驗(yàn)報(bào)告姓名：寧昭義組數(shù)：第5組 學(xué)號：6 專業(yè)：信息與通信工程 日期：2015年12月20日綜合實(shí)驗(yàn)（藍(lán)牙電話網(wǎng)關(guān)系統(tǒng)綜合開發(fā)案例）一、實(shí)驗(yàn)?zāi)康?熟練建立交叉編譯環(huán)境。2了解藍(lán)牙電話網(wǎng)關(guān)實(shí)現(xiàn)的原理。3通過編程實(shí)現(xiàn)通過建立的藍(lán)牙鏈接實(shí)現(xiàn)對GSM模塊功能的控制。二、實(shí)驗(yàn)內(nèi)容前言在藍(lán)牙電話網(wǎng)關(guān)系統(tǒng)中，嵌入式主機(jī)起到主控作用，Bluetooth模塊則向N個藍(lán)牙電話終端設(shè)備提供語音接入功能，GSM/GPRS模塊提供語音呼出服務(wù)，使得任何一個藍(lán)牙電話終端的呼叫請求都能夠連接到公眾語音網(wǎng)絡(luò)，從而實(shí)現(xiàn)本系統(tǒng)內(nèi)部的藍(lán)牙電話終端與外部公眾語音通信網(wǎng)絡(luò)用戶的通信。本開發(fā)案

2、例構(gòu)建了完整的藍(lán)牙電話網(wǎng)關(guān)系統(tǒng)，系統(tǒng)組成結(jié)構(gòu)如上圖所示。嵌入式藍(lán)牙電話網(wǎng)關(guān)是本系統(tǒng)的核心設(shè)備，主要使用了本產(chǎn)品中的ARM9嵌入式主機(jī)、Bluetooth和GSM/GPRS通信模塊。本實(shí)驗(yàn)通過藍(lán)牙建立無線連接，控制板載GSM模塊撥打電話，示意圖如下所示。具體任務(wù)1) 開發(fā)板1的藍(lán)牙與開發(fā)板2的藍(lán)牙建立語音和數(shù)據(jù)鏈路。2) 設(shè)置開發(fā)板1，使開發(fā)板1能控制GSM模塊撥打電話。3) 開發(fā)板2通過建好的藍(lán)牙鏈路控制開發(fā)板1的GSM模塊撥打電話。實(shí)驗(yàn)設(shè)備與軟件環(huán)境硬件：SemitARM9200開發(fā)板、PC機(jī)PIII800MHz，256MB以上、串口線（公母）1根、網(wǎng)線1根，音頻線一對，7.5V電源1個，以

3、上設(shè)備均需2套。軟件：RedHat 9.0 Linux操作系統(tǒng)，SemitARM9200實(shí)驗(yàn)開發(fā)軟件。三、實(shí)驗(yàn)步驟 分別將開發(fā)板1與開發(fā)板2的DEBUG COM與PC1和PC2的串口相連，開發(fā)板的網(wǎng)口與PC的網(wǎng)口相連。開發(fā)板接7.5V電源。啟動開發(fā)板1與開發(fā)板2，并建立交叉編譯環(huán)境。在開發(fā)板1上插入SIM卡，打開開發(fā)板1上GSM開關(guān)，按下GSM RESET鍵復(fù)位GSM，等到GSM MODE燈閃爍之后說明GSM模塊已經(jīng)啟動成功。開發(fā)板1與開發(fā)板2分別輸入sh /etc/scripts_arm.sh啟動藍(lán)牙輸入hciconfig顯示藍(lán)牙地址在開發(fā)板1：輸入cd /mnt/SEMIT_Project

4、/Bluetooth_Cellphone/Bluetooth_Cellphone_Server進(jìn)入文件夾輸入./server開發(fā)板2：輸入cd /mnt/SEMIT_Project/Bluetooth_Cellphone/Bluetooth_Cellphone_Client進(jìn)入文件夾輸入./client 00:06:6e:17:1c:30 開發(fā)板2將通過藍(lán)牙與開發(fā)板1建立鏈接，屏幕上將出現(xiàn)please select the function字樣代表已經(jīng)可以控制開發(fā)板2的板載GSM模塊撥打電話，按操作界面提示信息進(jìn)行操作。四、附錄（程序）Client端#ifdef HAVE_CONFIG_H#i

5、nclude #endif#define DEBUG#include #include #include #include #include #include #include #include #include #include #include #include #include bluetooth/bluetooth.h#include bluetooth/hci.h#include bluetooth/hci_lib.h#include bluetooth/l2cap.h#include bluetooth/sdp.h#include bluetooth/sdp_lib.h#inclu

6、de bluetooth/sco.h#include bluetooth/tcs.hvoid bas *dst, const bdaddr_t *src) register unsigned char *d = (unsigned char *) dst; register const unsigned char *s = (const unsigned char *) src; register int i; for (i = 0; i 6; i+) di = s5-i;int ba2str(const bdaddr_t *ba, char *str) uint8_t b6; baswap(

7、bdaddr_t *) b, ba); return sprintf(str, %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X, b0, b1, b2, b3, b4, b5);int str2ba(const char *str, bdaddr_t *ba) uint8_t b6; const char *ptr = str; int i; for (i = 0; i 6; i+) bi = (uint8_t) strtol(ptr, NULL, 16); if (i != 5 & !(ptr = strchr(ptr, :) ptr = :00:00:00:00:0

8、0; ptr+; bas, (bdaddr_t *) b); return 0;For debug#ifdef DEBUG void debug(char * str) printf(str); #else#define debug(str)#endif#define MAX_LEN 32VARIABLEint flag_process = 0;int flag_sco = 0;int flag_dial = 0;int flag_called = 0;int fd_tty;unsigned char command; unsigned int phonenum_len; unsigned c

9、har phonenumMAX_LEN+1 = 0; unsigned char msgType;unsigned char send_msg672;struct sockaddr_l2 addr = 0; /for l2cap socketint s;int status;char *dest;int bytes_read;unsigned char buf1024;struct sockaddr_sco sco_addr=0; /for sco linkint sco_s;int sco_status; void dt_add_sco(/*tcs_con_bt *tcs*/) debug(

10、n =NOW DT CONNECT SCO TO GW!=n);/ allocate a socket sco_s=socket(PF_BLUETOOTH,SOCK_SEQPACKET,BTPROTO_SCO); if(sco_s0) perror(create socket error); exit(1); else debug(create sco socket done!n); / set the connection parameters sco_addr.sco_family=AF_BLUETOOTH; str2ba(dest,&sco_addr.sco_bdaddr); / con

11、nect to server debug(connectting.n); sco_status=connect(sco_s,(struct sockaddr *)&sco_addr,sizeof(sco_addr);if(sco_status=0) debug(connect sco success!n);/after_sco_menu(tcs); else debug(connet sco Fail!n);close(sco_s); exit(1);void tcs_dt_init(int argc,char*argv) char c,ch; char cmd_line50; int nwr

12、ite; if(argc = 2) dest = argv1; else printf(usage:clinet addrn);exit(1); /unsigned char* addr; debug(n|= get tcs_dt initialized =|n); debug(1) dt opening l2cap socket.n); /allocate socket printf(s = %dn,s); s = socket(PF_BLUETOOTH,SOCK_SEQPACKET,BTPROTO_L2CAP); printf(s = %dn,s); if(s 0) printf(crea

13、te socket in dt failed.n); exit(1); else debug( dt open socket success!n); /bind socket to port 0x1001 of the first available bluetooth adaptor addr.l2_family = AF_BLUETOOTH; addr.l2_psm = htobs(0x1001); str2ba(dest,&addr.l2_bdaddr); /ba2str(&(loc_addr.l2_bdaddr), addr); /printf(local address is %cn

14、,addr); debug(2) connecting to gateway.n); printf(status = %d n,status); status = connect(s,(struct sockaddr*)&addr, sizeof(addr); printf(status = %d n,status); if(status ); memset(cmd_line,0,50); scanf(%s,cmd_line); ch = cmd_line0; switch(ch) case 1:printf(please enter the number to calln);memset(p

15、honenum,0,sizeof(phonenum) );scanf(%s,phonenum); phonenumstrlen(phonenum) = 0;phonenum_len = strlen(phonenum);memcpy(cmd_line+1,phonenum,phonenum_len);nwrite = write( s, cmd_line, sizeof(cmd_line) ); sleep(1); break;case 2: nwrite = write(s,2,1); sleep(1); close(sco_s); break; case 3: nwrite = write

16、(s,3,1);printf(exiting .n); exit(0); default: break; int main(int argc, char*argv) memset(phonenum,0,sizeof(phonenum); debug(begining.now.n); /tcs_con_bt* tcs; /tcs-tcs_cur_state = STATE_NULL; tcs_dt_init(argc,argv); return 0;Server端#ifdef HAVE_CONFIG_H#include #endif#define DEBUG#include #include #

17、include #include #include #include #include #include /* definitions */#include /* Error number definitions */#include /* POSIX terminal control definitions */#include /* Mluti-programming definitions*/#include bluetooth/bluetooth.h#include bluetooth/hci.h#include bluetooth/hci_lib.h#include bluetoot

18、h/l2cap.h#include bluetooth/sdp.h#include bluetooth/sdp_lib.h#include bluetooth/sco.h#include bluetooth/tcs.h#define MAX_LEN 32For debug#ifdef DEBUG void debug(char * str) printf(str); #else#define debug(str)#endifvoid bas *dst, const bdaddr_t *src)register unsigned char *d = (unsigned char *) dst;r

19、egister const unsigned char *s = (const unsigned char *) src;register int i;for (i = 0; i 6; i+)di = s5-i;int ba2str(const bdaddr_t *ba, char *str)uint8_t b6;baswap(bdaddr_t *) b, ba);return sprintf(str, %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X,b0, b1, b2, b3, b4, b5);struct termios options; pthread_t th

20、;int thread_flag;tcs_states tcs_state;unsigned char option;unsigned char command; unsigned char phonenumMAX_LEN+1 = 0; unsigned int phonenum_len; / for proceed from scratchunsigned char send_cmd50;unsigned char msgType;unsigned char* send_msg;struct sockaddr_l2 loc_addr=0, rem_addr = 0; / for l2capi

21、nt s;int result;int client;int bytes_read;char buf50;int opt = sizeof(rem_addr);char addr18;struct sockaddr_sco sco_loc_addr =0,sco_rem_addr=0; /for sco ;int sco_s;int sco_client;int sco_bytes_read;int sco_result;int sco_opt = sizeof(sco_rem_addr);extern int open_port(int fd, int comport);int fd;/*c

22、lean() : make a string empty*/void clean(char *s)int i=strlen(s);int j;for(j=0;ji;j+)*(s+j)=0;convert string to hexvoid string2hex(char *chr) /changed for form command_pic by ff 0720 int Length = strlen(chr); int i, n; char *tmp = chr; for ( i = 0; i Length; i+) *tmp -= 0x30;tmp+; int open_port(int

23、fd, int comport) char *dev=/dev/ttyS0,/dev/ttyS1,/dev/ttyS2; long vdisable; switch(comport) case 1: fd=open(/dev/ttyS0,O_RDWR|O_NOCTTY|O_NDELAY); break; case 2:fd=open(/dev/ttyS1,O_RDWR|O_NOCTTY|O_NDELAY); break; case 3:fd=open(/dev/ttyS2,O_RDWR|O_NOCTTY|O_NDELAY); break; case 4:fd=open(/dev/ttyS3,O

24、_RDWR|O_NOCTTY|O_NDELAY); break; case 5:fd=open(/dev/ttyS4,O_RDWR|O_NOCTTY|O_NDELAY); break; if(fd=-1) printf(open serial port %d failed!n,comport); return -1; if(fcntl(fd,F_SETFL,0)0) printf(fcntl failsn); else printf(fcntl=%dn,fcntl(fd,F_SETFL,0); if(isatty(STDIN_FILENO)=0) printf(standard input i

25、s not a terminal devicen); else printf(isatty successn); printf(fd-open=%dn,fd); return fd;int set_opt(int fd,int nSpeed, int nBits, char nEvent, int nStop) struct termios newtio,oldtio; if(tcgetattr(fd,&oldtio)!=0) perror(Setup Serial 1); return -1; bzero(&newtio, sizeof(newtio); newtio.c_cflag|=CL

26、OCAL|CREAD; newtio.c_cflag&=CSIZE;/setting stop bits switch(nBits) case 7: newtio.c_cflag|=CS7; break; case 8: newtio.c_cflag|=CS8; break; switch(nEvent) case O: newtio.c_cflag |= PARENB; newtio.c_cflag |= PARODD; newtio.c_iflag |= (INPCK|ISTRIP); break; case E: newtio.c_iflag|=(INPCK|ISTRIP); newti

27、o.c_cflag|=PARENB; newtio.c_cflag&=PARODD; break; case N: newtio.c_cflag &= PARENB; break; switch(nSpeed)case 9600: cfsetispeed(&newtio,B9600); cfsetospeed(&newtio,B9600); break; case 19200: cfsetispeed(&newtio,B19200); cfsetospeed(&newtio,B19200); break; case 38400: cfsetispeed(&newtio,B38400); cfs

28、etospeed(&newtio,B38400); break; case 57600: cfsetispeed(&newtio,B57600); cfsetospeed(&newtio,B57600); break;case 115200: cfsetispeed(&newtio,B115200); cfsetospeed(&newtio,B115200); break; /setting stop bits if(nStop=1) newtio.c_cflag&=CSTOPB; else newtio.c_cflag|=CSTOPB;/deng dai shi jian & min jie

29、shou fu newtio.c_ccVTIME=0; newtio.c_ccVMIN=0;/handle byes time+out tcflush(fd,TCIFLUSH);/activate newtio if( (tcsetattr(fd,TCSANOW,&newtio)!=0) perror(com set errorn); return -1; printf(set donen); return 0;*gw_add_scovoid gw_add_sco(void) debug(n=gw add sco=n); /allocate socket debug(Creating sco

30、socket.n); sco_s =socket(PF_BLUETOOTH,SOCK_SEQPACKET,BTPROTO_SCO); if(sco_s0) perror(create socket error); exit(1); else debug(creat sco socket success!n); sco_loc_addr.sco_family=AF_BLUETOOTH; sco_loc_addr.sco_bdaddr=*BDADDR_ANY; debug(Binding sco socket.n); sco_result=bind(sco_s,(struct sockaddr *

31、)&sco_loc_addr, sizeof(sco_loc_addr); if(sco_result0) perror(bind socket error:); exit(1); else debug(binding sco socket success!n); debug(Listen. ); sco_result=listen(sco_s,1); if(sco_result0) printf(error:%dn:,result); perror(listen error:); exit(1); else debug(gw sco requested!n); debug(Accepting

32、.n); sco_client= accept(sco_s,(struct sockaddr *)&sco_rem_addr,&sco_opt); if(sco_client0) perror(accept error); exit(1); else debug(gw accept sco OK!n); *EXPORT FUNCITON DEFINATION(FOR GATEWAY) void tcs_init(void) /unsigned char* addr; debug(n|= get tcs initialized =|n); debug(1) tcs init: opening l

33、2cap socket.n); /allocate socket s = socket(PF_BLUETOOTH,SOCK_SEQPACKET,BTPROTO_L2CAP); if(s 0) printf(create socket in gateway failed.n); exit(1); else debug( open socket success!n); /bind socket to port 0x1001 of the first available bluetooth adaptor loc_addr.l2_family = AF_BLUETOOTH; loc_addr.l2_

34、psm = htobs(0x1001); loc_addr.l2_bdaddr = *BDADDR_ANY; /ba2str(&loc_addr.l2_bdaddr,addr); ba2str(&(*BDADDR_ANY),addr); printf(local address is %sn,addr); debug(2) binding socket.n); result = bind(s,(struct sockaddr*)&loc_addr, sizeof(loc_addr); if(result 0) printf(bind socket error.n); close(s); exit(1); else debug( binding socket success!n); pri