Components / GSM

A library for the SIM900 module to enable calling, answering, sending and receiving SMS messages

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gprs.cpp@2:16985da3a446, 2013-11-18 (annotated)

Committer:
lawliet
Date:
Mon Nov 18 06:05:17 2013 +0000
Revision:
2:16985da3a446
Parent:
1:642a8dbe076c
Child:
3:48ee24a4b0f3
Version 0.3?add document note for GPRS class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lawliet 0:a5ae94727346 1 /*
lawliet 0:a5ae94727346 2 gprs.cpp
lawliet 0:a5ae94727346 3 2013 Copyright (c) Seeed Technology Inc. All right reserved.
lawliet 0:a5ae94727346 4
lawliet 0:a5ae94727346 5 Author:lawliet.zou@gmail.com
lawliet 0:a5ae94727346 6 2013-11-14
lawliet 0:a5ae94727346 7
lawliet 0:a5ae94727346 8 This library is free software; you can redistribute it and/or
lawliet 0:a5ae94727346 9 modify it under the terms of the GNU Lesser General Public
lawliet 0:a5ae94727346 10 License as published by the Free Software Foundation; either
lawliet 0:a5ae94727346 11 version 2.1 of the License, or (at your option) any later version.
lawliet 0:a5ae94727346 12
lawliet 0:a5ae94727346 13 This library is distributed in the hope that it will be useful,
lawliet 0:a5ae94727346 14 but WITHOUT ANY WARRANTY; without even the implied warranty of
lawliet 0:a5ae94727346 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
lawliet 0:a5ae94727346 16 Lesser General Public License for more details.
lawliet 0:a5ae94727346 17
lawliet 0:a5ae94727346 18 You should have received a copy of the GNU Lesser General Public
lawliet 0:a5ae94727346 19 License along with this library; if not, write to the Free Software
lawliet 0:a5ae94727346 20 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
lawliet 0:a5ae94727346 21 */
lawliet 0:a5ae94727346 22
lawliet 0:a5ae94727346 23 #include <stdio.h>
lawliet 0:a5ae94727346 24 #include "mbed.h"
lawliet 0:a5ae94727346 25 #include "gprs.h"
lawliet 0:a5ae94727346 26
lawliet 1:642a8dbe076c 27 #define TRUE 1
lawliet 0:a5ae94727346 28 #define FALSE 0
lawliet 0:a5ae94727346 29
lawliet 1:642a8dbe076c 30 #define UART_DEBUG
lawliet 1:642a8dbe076c 31
lawliet 1:642a8dbe076c 32 #ifdef UART_DEBUG
lawliet 1:642a8dbe076c 33 #define ERROR(x) printf("ERROR:%s\r\n",x)
lawliet 1:642a8dbe076c 34 #define DEBUG(x) printf("DEBUG:%s\r\n",x);
lawliet 1:642a8dbe076c 35 #else
lawliet 1:642a8dbe076c 36 #define ERROR(x)
lawliet 1:642a8dbe076c 37 #define DEBUG(x)
lawliet 1:642a8dbe076c 38 #endif
lawliet 0:a5ae94727346 39
lawliet 0:a5ae94727346 40 #define DEFALUT_TIMEOUT 5
lawliet 0:a5ae94727346 41
lawliet 2:16985da3a446 42 int GPRS::init(void)
lawliet 0:a5ae94727346 43 {
lawliet 1:642a8dbe076c 44 wait(0.5);
lawliet 1:642a8dbe076c 45 if(0 != checkSIMStatus()) { //check SIM card status
lawliet 1:642a8dbe076c 46 ERROR("checkSIMStatus");
lawliet 1:642a8dbe076c 47 return -1;
lawliet 1:642a8dbe076c 48 }
lawliet 1:642a8dbe076c 49 if(checkSignalStrength()<1) { //check Signal Strength
lawliet 1:642a8dbe076c 50 ERROR("Signal too weak");
lawliet 1:642a8dbe076c 51 return -1;
lawliet 1:642a8dbe076c 52 }
lawliet 1:642a8dbe076c 53
lawliet 1:642a8dbe076c 54 if(0 != networkInit()) {
lawliet 1:642a8dbe076c 55 ERROR("Network Init error");
lawliet 1:642a8dbe076c 56 return -1;
lawliet 1:642a8dbe076c 57 }
lawliet 1:642a8dbe076c 58 return 0;
lawliet 0:a5ae94727346 59 }
lawliet 0:a5ae94727346 60
lawliet 2:16985da3a446 61 int GPRS::readBuffer(char *buffer,int count)
lawliet 0:a5ae94727346 62 {
lawliet 1:642a8dbe076c 63 int i = 0;
lawliet 1:642a8dbe076c 64 timeCnt.start(); // start timer
lawliet 1:642a8dbe076c 65 while(1) {
lawliet 1:642a8dbe076c 66 while (gprsSerial.readable()) {
lawliet 1:642a8dbe076c 67 char c = gprsSerial.getc();
lawliet 1:642a8dbe076c 68 if (c == '\r' || c == '\n') c = '$';
lawliet 1:642a8dbe076c 69 buffer[i++] = c;
lawliet 1:642a8dbe076c 70 if(i > count)break;
lawliet 1:642a8dbe076c 71 }
lawliet 1:642a8dbe076c 72 if(i > count)break;
lawliet 1:642a8dbe076c 73 if(timeCnt.read() > DEFALUT_TIMEOUT) {
lawliet 1:642a8dbe076c 74 timeCnt.stop();
lawliet 1:642a8dbe076c 75 timeCnt.reset();
lawliet 1:642a8dbe076c 76 break;
lawliet 1:642a8dbe076c 77 }
lawliet 1:642a8dbe076c 78 }
lawliet 1:642a8dbe076c 79 wait(0.5);
lawliet 1:642a8dbe076c 80 while(gprsSerial.readable()) { // display the other thing..
lawliet 1:642a8dbe076c 81 char c = gprsSerial.getc();
lawliet 1:642a8dbe076c 82 }
lawliet 1:642a8dbe076c 83 return 0;
lawliet 0:a5ae94727346 84 }
lawliet 0:a5ae94727346 85
lawliet 0:a5ae94727346 86 void cleanBuffer(char *buffer, int count)
lawliet 0:a5ae94727346 87 {
lawliet 1:642a8dbe076c 88 for(int i=0; i < count; i++) {
lawliet 1:642a8dbe076c 89 buffer[i] = '\0';
lawliet 1:642a8dbe076c 90 }
lawliet 0:a5ae94727346 91 }
lawliet 0:a5ae94727346 92
lawliet 2:16985da3a446 93 void GPRS::sendCmd(char *cmd)
lawliet 0:a5ae94727346 94 {
lawliet 1:642a8dbe076c 95 gprsSerial.puts(cmd);
lawliet 0:a5ae94727346 96 }
lawliet 0:a5ae94727346 97
lawliet 2:16985da3a446 98 int GPRS::waitForResp(char *resp, int timeout)
lawliet 0:a5ae94727346 99 {
lawliet 1:642a8dbe076c 100 int len = strlen(resp);
lawliet 1:642a8dbe076c 101 int sum=0;
lawliet 1:642a8dbe076c 102 timeCnt.start();
lawliet 1:642a8dbe076c 103
lawliet 1:642a8dbe076c 104 while(1) {
lawliet 1:642a8dbe076c 105 if(gprsSerial.readable()) {
lawliet 1:642a8dbe076c 106 char c = gprsSerial.getc();
lawliet 1:642a8dbe076c 107 sum = (c==resp[sum]) ? sum+1 : 0;
lawliet 1:642a8dbe076c 108 if(sum == len)break;
lawliet 1:642a8dbe076c 109 }
lawliet 1:642a8dbe076c 110 if(timeCnt.read() > timeout) { // time out
lawliet 1:642a8dbe076c 111 timeCnt.stop();
lawliet 1:642a8dbe076c 112 timeCnt.reset();
lawliet 1:642a8dbe076c 113 ERROR("time out");
lawliet 1:642a8dbe076c 114 return -1;
lawliet 1:642a8dbe076c 115 }
lawliet 1:642a8dbe076c 116 }
lawliet 1:642a8dbe076c 117 timeCnt.stop(); // stop timer
lawliet 1:642a8dbe076c 118 timeCnt.reset(); // clear timer
lawliet 1:642a8dbe076c 119 while(gprsSerial.readable()) { // display the other thing..
lawliet 1:642a8dbe076c 120 char c = gprsSerial.getc();
lawliet 1:642a8dbe076c 121 }
lawliet 1:642a8dbe076c 122
lawliet 1:642a8dbe076c 123 return 0;
lawliet 1:642a8dbe076c 124 }
lawliet 0:a5ae94727346 125
lawliet 0:a5ae94727346 126
lawliet 0:a5ae94727346 127
lawliet 2:16985da3a446 128 int GPRS::sendCmdAndWaitForResp(char *cmd, char *resp, int timeout)
lawliet 0:a5ae94727346 129 {
lawliet 0:a5ae94727346 130 sendCmd(cmd);
lawliet 1:642a8dbe076c 131 return waitForResp(resp,timeout);
lawliet 0:a5ae94727346 132 }
lawliet 0:a5ae94727346 133
lawliet 2:16985da3a446 134 int GPRS::checkSIMStatus(void)
lawliet 0:a5ae94727346 135 {
lawliet 1:642a8dbe076c 136 char gprsBuffer[30];
lawliet 1:642a8dbe076c 137 int count = 0;
lawliet 1:642a8dbe076c 138 cleanBuffer(gprsBuffer,30);
lawliet 1:642a8dbe076c 139 while(count < 3) {
lawliet 1:642a8dbe076c 140 sendCmd("AT+CPIN?\r\n");
lawliet 1:642a8dbe076c 141 readBuffer(gprsBuffer,30);
lawliet 1:642a8dbe076c 142 //DEBUG(gprsBuffer);
lawliet 1:642a8dbe076c 143 if((NULL != strstr(gprsBuffer,"+CPIN: READY"))) {
lawliet 1:642a8dbe076c 144 break;
lawliet 1:642a8dbe076c 145 }
lawliet 1:642a8dbe076c 146 count++;
lawliet 1:642a8dbe076c 147 wait(1);
lawliet 1:642a8dbe076c 148 }
lawliet 0:a5ae94727346 149
lawliet 1:642a8dbe076c 150 if(count == 3) {
lawliet 1:642a8dbe076c 151 ERROR("Bad SIM Status");
lawliet 1:642a8dbe076c 152 return -1;
lawliet 1:642a8dbe076c 153 }
lawliet 1:642a8dbe076c 154 return 0;
lawliet 0:a5ae94727346 155 }
lawliet 0:a5ae94727346 156
lawliet 2:16985da3a446 157 int GPRS::checkSignalStrength(void)
lawliet 0:a5ae94727346 158 {
lawliet 1:642a8dbe076c 159 char gprsBuffer[100];
lawliet 1:642a8dbe076c 160 int index,count = 0;
lawliet 1:642a8dbe076c 161 cleanBuffer(gprsBuffer,100);
lawliet 1:642a8dbe076c 162 while(count < 3) {
lawliet 1:642a8dbe076c 163 sendCmd("AT+CSQ\r\n");
lawliet 1:642a8dbe076c 164 readBuffer(gprsBuffer,25);
lawliet 1:642a8dbe076c 165 //DEBUG(gprsBuffer);
lawliet 1:642a8dbe076c 166 if(sscanf(gprsBuffer, "AT+CSQ$$$$+CSQ: %d", &index)>0) {
lawliet 1:642a8dbe076c 167 break;
lawliet 1:642a8dbe076c 168 }
lawliet 1:642a8dbe076c 169 ERROR("checking signal strenght error, try again...");
lawliet 1:642a8dbe076c 170 count++;
lawliet 1:642a8dbe076c 171 wait(1);
lawliet 1:642a8dbe076c 172 }
lawliet 1:642a8dbe076c 173 if(count == 3) {
lawliet 1:642a8dbe076c 174 ERROR("AT+CSQ");
lawliet 1:642a8dbe076c 175 return -1;
lawliet 1:642a8dbe076c 176 }
lawliet 1:642a8dbe076c 177 return index;
lawliet 0:a5ae94727346 178 }
lawliet 0:a5ae94727346 179
lawliet 2:16985da3a446 180 int GPRS::networkInit(void)
lawliet 0:a5ae94727346 181 {
lawliet 1:642a8dbe076c 182 //for GPRS
lawliet 1:642a8dbe076c 183 if(0 != sendCmdAndWaitForResp("AT+CGREG?\r\n","+CGREG: 0,1",DEFALUT_TIMEOUT)) { //Open GPRS
lawliet 1:642a8dbe076c 184 ERROR("CGREG");
lawliet 1:642a8dbe076c 185 return -1;
lawliet 1:642a8dbe076c 186 }
lawliet 1:642a8dbe076c 187 wait(1);
lawliet 1:642a8dbe076c 188 if(0 != sendCmdAndWaitForResp("AT+CGATT?\r\n","+CGATT: 1",DEFALUT_TIMEOUT)) { //Set GPRS
lawliet 1:642a8dbe076c 189 ERROR("CGATT");
lawliet 1:642a8dbe076c 190 return -1;
lawliet 1:642a8dbe076c 191 }
lawliet 1:642a8dbe076c 192 return 0;
lawliet 0:a5ae94727346 193 }
lawliet 0:a5ae94727346 194
lawliet 2:16985da3a446 195 int GPRS::sendSMS(char *number, char *data)
lawliet 0:a5ae94727346 196 {
lawliet 1:642a8dbe076c 197 char cmd[64];
lawliet 1:642a8dbe076c 198 if(0 != sendCmdAndWaitForResp("AT+CMGF=1\r\n", "OK", DEFALUT_TIMEOUT)) { // Set message mode to ASCII
lawliet 1:642a8dbe076c 199 ERROR("CMGF");
lawliet 1:642a8dbe076c 200 return -1;
lawliet 1:642a8dbe076c 201 }
lawliet 1:642a8dbe076c 202 wait(0.5);
lawliet 1:642a8dbe076c 203 // Set the phone number
lawliet 1:642a8dbe076c 204 snprintf(cmd, sizeof(cmd),"AT+CMGS=\"%s\"\r\n", number);
lawliet 1:642a8dbe076c 205 if(0 != sendCmdAndWaitForResp(cmd,">",DEFALUT_TIMEOUT)) {
lawliet 1:642a8dbe076c 206 ERROR("CMGS");
lawliet 1:642a8dbe076c 207 return -1;
lawliet 1:642a8dbe076c 208 }
lawliet 1:642a8dbe076c 209 wait(1);
lawliet 1:642a8dbe076c 210 gprsSerial.puts(data);// Send Message
lawliet 1:642a8dbe076c 211 wait(0.5);
lawliet 1:642a8dbe076c 212 gprsSerial.putc(0x1A);//end mark
lawliet 1:642a8dbe076c 213 return 0;
lawliet 0:a5ae94727346 214 }
lawliet 0:a5ae94727346 215
lawliet 2:16985da3a446 216 int GPRS::readSMS(char *buffer, char *message, bool check)
lawliet 0:a5ae94727346 217 {
lawliet 1:642a8dbe076c 218 int index,i = 0;
lawliet 1:642a8dbe076c 219 char gprsBuffer[100];
lawliet 1:642a8dbe076c 220 char *p,*s;
lawliet 0:a5ae94727346 221
lawliet 1:642a8dbe076c 222 if(sscanf(buffer, "$$+CMTI: \"SM\",%d", &index)>0) {
lawliet 1:642a8dbe076c 223 DEBUG("Opening message...");
lawliet 1:642a8dbe076c 224 gprsSerial.printf("AT+CMGR=%d\r\n", index);
lawliet 1:642a8dbe076c 225 } else {
lawliet 1:642a8dbe076c 226 ERROR("get Message");
lawliet 1:642a8dbe076c 227 }
lawliet 1:642a8dbe076c 228 cleanBuffer(gprsBuffer,100);
lawliet 1:642a8dbe076c 229 readBuffer(gprsBuffer,100);
lawliet 1:642a8dbe076c 230 //pc.printf(gprsBuffer); //AT+CMGR=17$$$$+CMGR: "REC UNREAD","+8613925257382","","13/11/11,10:36:13+32"$$Hello$$$$OK$$
lawliet 1:642a8dbe076c 231 DEBUG(gprsBuffer);
lawliet 1:642a8dbe076c 232 if(NULL == ( s = strstr(gprsBuffer,"+CMGR: \"REC UNREAD\""))) {
lawliet 1:642a8dbe076c 233 ERROR("get CMGR error");
lawliet 1:642a8dbe076c 234 return -1;
lawliet 1:642a8dbe076c 235 }
lawliet 1:642a8dbe076c 236
lawliet 1:642a8dbe076c 237 //check phone number
lawliet 1:642a8dbe076c 238 if(check) {
lawliet 1:642a8dbe076c 239 char number[20];
lawliet 1:642a8dbe076c 240 snprintf(number,sizeof(number),"\"+86%s\"",phoneNumber); //for China
lawliet 1:642a8dbe076c 241 p = s + 20;
lawliet 1:642a8dbe076c 242 if(0 != (strncmp(number,p,14))) {
lawliet 1:642a8dbe076c 243 ERROR("Phone Number error");
lawliet 1:642a8dbe076c 244 return -1;
lawliet 1:642a8dbe076c 245 }
lawliet 1:642a8dbe076c 246 }
lawliet 1:642a8dbe076c 247 p = s + 64;
lawliet 1:642a8dbe076c 248 while(*p != '$') {
lawliet 1:642a8dbe076c 249 message[i++] = *(p++);
lawliet 1:642a8dbe076c 250 }
lawliet 1:642a8dbe076c 251 message[i] = '\0';
lawliet 1:642a8dbe076c 252 DEBUG(message);
lawliet 1:642a8dbe076c 253 return 0;
lawliet 0:a5ae94727346 254 }
lawliet 0:a5ae94727346 255
lawliet 2:16985da3a446 256 int GPRS::deleteSMS(int index)
lawliet 0:a5ae94727346 257 {
lawliet 1:642a8dbe076c 258 char cmd[64];
lawliet 1:642a8dbe076c 259 snprintf(cmd,sizeof(cmd),"AT+CMGD=%d\r\n",index);
lawliet 1:642a8dbe076c 260 sendCmd(cmd);
lawliet 1:642a8dbe076c 261 return 0;
lawliet 0:a5ae94727346 262 }
lawliet 0:a5ae94727346 263
lawliet 2:16985da3a446 264 int GPRS::callUp(char *number)
lawliet 0:a5ae94727346 265 {
lawliet 1:642a8dbe076c 266 if(0 != sendCmdAndWaitForResp("AT+COLP=1\r\n","OK",5)) {
lawliet 1:642a8dbe076c 267 ERROR("COLP");
lawliet 1:642a8dbe076c 268 return -1;
lawliet 1:642a8dbe076c 269 }
lawliet 1:642a8dbe076c 270 wait(1);
lawliet 1:642a8dbe076c 271 gprsSerial.printf("\r\nATD%s;\r\n",NULL==number?phoneNumber:number);
lawliet 1:642a8dbe076c 272 return 0;
lawliet 0:a5ae94727346 273 }
lawliet 0:a5ae94727346 274
lawliet 2:16985da3a446 275 int GPRS::answer(void)
lawliet 0:a5ae94727346 276 {
lawliet 1:642a8dbe076c 277 gprsSerial.printf("ATA\r\n");
lawliet 1:642a8dbe076c 278 return 0;
lawliet 0:a5ae94727346 279 }
lawliet 0:a5ae94727346 280
lawliet 2:16985da3a446 281 int GPRS::loop(bool check)
lawliet 0:a5ae94727346 282 {
lawliet 1:642a8dbe076c 283 char gprsBuffer[100];
lawliet 1:642a8dbe076c 284 int i = 0;
lawliet 1:642a8dbe076c 285 cleanBuffer(gprsBuffer,100);
lawliet 1:642a8dbe076c 286 while(1) {
lawliet 1:642a8dbe076c 287 if(gprsSerial.readable()) {
lawliet 1:642a8dbe076c 288 break;
lawliet 1:642a8dbe076c 289 }
lawliet 1:642a8dbe076c 290 wait(1);
lawliet 1:642a8dbe076c 291 }
lawliet 1:642a8dbe076c 292
lawliet 1:642a8dbe076c 293 timeCnt.start(); // start timer
lawliet 1:642a8dbe076c 294 while(1) {
lawliet 1:642a8dbe076c 295 while (gprsSerial.readable()) {
lawliet 1:642a8dbe076c 296 char c = gprsSerial.getc();
lawliet 1:642a8dbe076c 297 if (c == '\r' || c == '\n') c = '$';
lawliet 1:642a8dbe076c 298 gprsBuffer[i] = c;
lawliet 1:642a8dbe076c 299 i++;
lawliet 1:642a8dbe076c 300 if(i > 100) {
lawliet 1:642a8dbe076c 301 i = 0;
lawliet 1:642a8dbe076c 302 break;
lawliet 1:642a8dbe076c 303 }
lawliet 1:642a8dbe076c 304 }
lawliet 1:642a8dbe076c 305 if(timeCnt.read() > 5) { // time out
lawliet 1:642a8dbe076c 306 timeCnt.stop();
lawliet 1:642a8dbe076c 307 timeCnt.reset();
lawliet 1:642a8dbe076c 308 break;
lawliet 1:642a8dbe076c 309 }
lawliet 1:642a8dbe076c 310 }
lawliet 1:642a8dbe076c 311
lawliet 1:642a8dbe076c 312 if(NULL != strstr(gprsBuffer,"RING")) {
lawliet 1:642a8dbe076c 313 if(0 != answer()) {
lawliet 1:642a8dbe076c 314 ERROR("answer");
lawliet 1:642a8dbe076c 315 }
lawliet 1:642a8dbe076c 316 } else if(NULL != strstr(gprsBuffer,"$$+CMTI: \"SM\"")) { //SMS: $$+CMTI: "SM",24$$
lawliet 1:642a8dbe076c 317 char message[64];
lawliet 1:642a8dbe076c 318 if(0 != readSMS(gprsBuffer, message, check)) {
lawliet 1:642a8dbe076c 319 ERROR("readSMS");
lawliet 1:642a8dbe076c 320 }
lawliet 1:642a8dbe076c 321 }
lawliet 1:642a8dbe076c 322 return 0;
lawliet 0:a5ae94727346 323 }
lawliet 0:a5ae94727346 324
lawliet 0:a5ae94727346 325
lawliet 0:a5ae94727346 326 /****************************************GPRS TCP CONNECT************************************/
lawliet 0:a5ae94727346 327
lawliet 2:16985da3a446 328 int GPRS::connectTCP(char *ip, char *port)
lawliet 0:a5ae94727346 329 {
lawliet 1:642a8dbe076c 330 char cipstart[50];
lawliet 1:642a8dbe076c 331 //char ipaddr[20];
lawliet 1:642a8dbe076c 332 #if 0
lawliet 1:642a8dbe076c 333 wait(1);
lawliet 1:642a8dbe076c 334 if(0 != sendCmdAndWaitForResp("AT+CSTT\r\n","OK",20)) { //Set GPRS
lawliet 1:642a8dbe076c 335 ERROR("CSTT");
lawliet 1:642a8dbe076c 336 return -1;
lawliet 1:642a8dbe076c 337 }
lawliet 1:642a8dbe076c 338 wait(1);
lawliet 1:642a8dbe076c 339 if(0 != sendCmdAndWaitForResp("AT+CIICR\r\n","OK",10)) { //Set APN
lawliet 1:642a8dbe076c 340 ERROR("CIICR");
lawliet 1:642a8dbe076c 341 return -1;
lawliet 1:642a8dbe076c 342 }
lawliet 1:642a8dbe076c 343 wait(2);
lawliet 1:642a8dbe076c 344 sendCmd("AT+CIFSR\r\n");
lawliet 1:642a8dbe076c 345 readBuffer(ipaddr,20);
lawliet 1:642a8dbe076c 346 DEBUG("ipaddr=");
lawliet 1:642a8dbe076c 347 DEBUG(ipaddr);
lawliet 1:642a8dbe076c 348 wait(1);
lawliet 1:642a8dbe076c 349 #endif
lawliet 1:642a8dbe076c 350 #if 1
lawliet 1:642a8dbe076c 351 sprintf(cipstart, "AT+CIPSTART=\"TCP\",\"%s\",\"%s\"\r\n", ip, port);
lawliet 1:642a8dbe076c 352 DEBUG(cipstart);
lawliet 1:642a8dbe076c 353 if(0 != sendCmdAndWaitForResp(cipstart, "CONNECT OK", 10)) { // connect tcp
lawliet 1:642a8dbe076c 354 ERROR("CIPSTART");
lawliet 1:642a8dbe076c 355 return -1;
lawliet 1:642a8dbe076c 356 }
lawliet 1:642a8dbe076c 357 #endif
lawliet 1:642a8dbe076c 358 return 0;
lawliet 0:a5ae94727346 359 }
lawliet 2:16985da3a446 360 int GPRS::sendTCPData(char *data)
lawliet 0:a5ae94727346 361 {
lawliet 1:642a8dbe076c 362 char cmd[64];
lawliet 1:642a8dbe076c 363 int len = strlen(data);
lawliet 1:642a8dbe076c 364 snprintf(cmd,sizeof(cmd),"AT+CIPSEND=%d\r\n",len);
lawliet 1:642a8dbe076c 365 DEBUG(cmd);
lawliet 1:642a8dbe076c 366 if(0 != sendCmdAndWaitForResp(cmd,">",DEFALUT_TIMEOUT)) {
lawliet 1:642a8dbe076c 367 ERROR("CIPSEND");
lawliet 1:642a8dbe076c 368 return -1;
lawliet 1:642a8dbe076c 369 }
lawliet 1:642a8dbe076c 370 if(0 != sendCmdAndWaitForResp(data,"SEND OK",DEFALUT_TIMEOUT)) {
lawliet 1:642a8dbe076c 371 ERROR("SendTCPData");
lawliet 1:642a8dbe076c 372 return -1;
lawliet 1:642a8dbe076c 373 }
lawliet 1:642a8dbe076c 374 return 0;
lawliet 0:a5ae94727346 375 }
lawliet 0:a5ae94727346 376
lawliet 2:16985da3a446 377 int GPRS::closeTCP(void)
lawliet 0:a5ae94727346 378 {
lawliet 1:642a8dbe076c 379 sendCmd("AT+CIPCLOSE\r\n");
lawliet 1:642a8dbe076c 380 return 0;
lawliet 0:a5ae94727346 381 }
lawliet 0:a5ae94727346 382
lawliet 2:16985da3a446 383 int GPRS::shutTCP(void)
lawliet 0:a5ae94727346 384 {
lawliet 1:642a8dbe076c 385 sendCmd("AT+CIPSHUT\r\n");
lawliet 1:642a8dbe076c 386 return 0;
lawliet 0:a5ae94727346 387 }
lawliet 0:a5ae94727346 388
lawliet 0:a5ae94727346 389 /****************************************GPRS DEBUG******************************************/
lawliet 2:16985da3a446 390 void GPRS::serialDebug(PinName tx, PinName rx)
lawliet 1:642a8dbe076c 391 {
lawliet 1:642a8dbe076c 392 char buffer[64];
lawliet 1:642a8dbe076c 393 int count = 0;
lawliet 1:642a8dbe076c 394 Serial pc(tx,rx);
lawliet 1:642a8dbe076c 395 while(1) {
lawliet 1:642a8dbe076c 396 if(gprsSerial.readable()) {
lawliet 1:642a8dbe076c 397 while(gprsSerial.readable()) {
lawliet 1:642a8dbe076c 398 char c = gprsSerial.getc();
lawliet 1:642a8dbe076c 399 buffer[count++] = c;
lawliet 1:642a8dbe076c 400 if(count == 64) break;
lawliet 1:642a8dbe076c 401 }
lawliet 1:642a8dbe076c 402 pc.puts(buffer);
lawliet 1:642a8dbe076c 403 for(int i = 0; i < count; i++) {
lawliet 1:642a8dbe076c 404 buffer[i] = NULL;
lawliet 1:642a8dbe076c 405 }
lawliet 1:642a8dbe076c 406 count = 0;
lawliet 1:642a8dbe076c 407 }
lawliet 0:a5ae94727346 408
lawliet 1:642a8dbe076c 409 if(pc.readable()) {
lawliet 1:642a8dbe076c 410 gprsSerial.putc(pc.getc());
lawliet 1:642a8dbe076c 411 }
lawliet 1:642a8dbe076c 412 }
lawliet 0:a5ae94727346 413 }