Pathfindr / Mbed OS mbed-os-PF-UWBBEACON_v1_dev

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Dependencies:   aconno_I2C Lis2dh12 WatchdogTimer

modem.cpp@12:8345612bf867, 2018-12-16 (annotated)

Committer:
pathfindr
Date:
Sun Dec 16 01:06:14 2018 +0000
Revision:
12:8345612bf867
Parent:
7:e9a19750700d
Child:
13:29f67f256709
4

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pathfindr 7:e9a19750700d 1 #include "modem.h"
pathfindr 7:e9a19750700d 2
pathfindr 12:8345612bf867 3 static char ATinBuffer[180];
pathfindr 12:8345612bf867 4
pathfindr 7:e9a19750700d 5 Modem::Modem(PinName tx, PinName rx, PinName cts, PinName rts, PinName pwrkey, PinName vreg_en): _uart(tx,rx,115200), _pwrkey(pwrkey), _vreg_en(vreg_en)
pathfindr 7:e9a19750700d 6 {
pathfindr 7:e9a19750700d 7 requireSoftReset = true; //TODO: this can be removed when uart sleep issue resolved
pathfindr 7:e9a19750700d 8 }
pathfindr 7:e9a19750700d 9
pathfindr 7:e9a19750700d 10 void Modem::flushSerial(void)
pathfindr 7:e9a19750700d 11 {
pathfindr 7:e9a19750700d 12 char char1 = 0;
pathfindr 7:e9a19750700d 13 while (_uart.readable()) {
pathfindr 7:e9a19750700d 14 char1 = _uart.getc();
pathfindr 7:e9a19750700d 15 }
pathfindr 7:e9a19750700d 16 return;
pathfindr 7:e9a19750700d 17 }
pathfindr 7:e9a19750700d 18
pathfindr 7:e9a19750700d 19 void Modem::ATsendCMD(char* cmd)
pathfindr 7:e9a19750700d 20 {
pathfindr 7:e9a19750700d 21 flushSerial();
pathfindr 7:e9a19750700d 22 _uart.puts(cmd);
pathfindr 7:e9a19750700d 23 _uart.puts("\r");
pathfindr 7:e9a19750700d 24 }
pathfindr 7:e9a19750700d 25
pathfindr 12:8345612bf867 26 bool Modem::ATwaitForWord(char* word, uint32_t timeout)
pathfindr 7:e9a19750700d 27 {
pathfindr 7:e9a19750700d 28 int targetIndex = 0;
pathfindr 7:e9a19750700d 29 bool havefullmatch = false;
pathfindr 7:e9a19750700d 30 char captured[32];
pathfindr 7:e9a19750700d 31 memset (captured,0,sizeof(captured));
pathfindr 7:e9a19750700d 32 Timer t;
pathfindr 7:e9a19750700d 33 t.start();
pathfindr 12:8345612bf867 34 uint32_t startmillis = t.read_ms();
pathfindr 12:8345612bf867 35 uint32_t runtime = 0;
pathfindr 7:e9a19750700d 36 while(!havefullmatch && runtime < timeout) {
pathfindr 7:e9a19750700d 37 runtime = (t.read_ms() - startmillis);
pathfindr 7:e9a19750700d 38 if(_uart.readable()) {
pathfindr 7:e9a19750700d 39 char c = _uart.getc();
pathfindr 7:e9a19750700d 40 if (c != word[targetIndex]) { //no match, reset
pathfindr 7:e9a19750700d 41 targetIndex = 0;
pathfindr 7:e9a19750700d 42 }
pathfindr 7:e9a19750700d 43 if (c == word[targetIndex]) { //we have a match
pathfindr 7:e9a19750700d 44 captured[targetIndex] = c;
pathfindr 7:e9a19750700d 45 targetIndex ++;
pathfindr 7:e9a19750700d 46 //check for full match
pathfindr 7:e9a19750700d 47 if ( strcmp(word, captured) == 0 ) {
pathfindr 7:e9a19750700d 48 havefullmatch = true;
pathfindr 7:e9a19750700d 49 }
pathfindr 7:e9a19750700d 50 }
pathfindr 12:8345612bf867 51 }
pathfindr 7:e9a19750700d 52 }
pathfindr 7:e9a19750700d 53 t.stop();
pathfindr 7:e9a19750700d 54 t.reset();
pathfindr 7:e9a19750700d 55 ThisThread::sleep_for(500);
pathfindr 7:e9a19750700d 56 if (havefullmatch) {
pathfindr 7:e9a19750700d 57 return true;
pathfindr 7:e9a19750700d 58 } else {
pathfindr 7:e9a19750700d 59 return false;
pathfindr 7:e9a19750700d 60 }
pathfindr 7:e9a19750700d 61 }
pathfindr 7:e9a19750700d 62
pathfindr 12:8345612bf867 63 bool Modem::on(void)
pathfindr 12:8345612bf867 64 {
pathfindr 12:8345612bf867 65 _vreg_en = 1;
pathfindr 12:8345612bf867 66 Thread::wait(500);
pathfindr 12:8345612bf867 67 _pwrkey = 0;
pathfindr 12:8345612bf867 68 Thread::wait(1500);
pathfindr 12:8345612bf867 69 _pwrkey = 1;
pathfindr 12:8345612bf867 70 if (ATwaitForWord("RDY",10000)) {
pathfindr 12:8345612bf867 71 //TURN OFF ECHO
pathfindr 12:8345612bf867 72 ATsendCMD("ATE 0");
pathfindr 12:8345612bf867 73 ATwaitForWord("OK",5000);
pathfindr 12:8345612bf867 74 return true;
pathfindr 12:8345612bf867 75 } else {
pathfindr 12:8345612bf867 76 return false;
pathfindr 12:8345612bf867 77 }
pathfindr 12:8345612bf867 78 }
pathfindr 12:8345612bf867 79
pathfindr 12:8345612bf867 80 void Modem::off(bool soft)
pathfindr 12:8345612bf867 81 {
pathfindr 12:8345612bf867 82 if (soft) {
pathfindr 12:8345612bf867 83 ATsendCMD("AT+QPOWD=0");
pathfindr 12:8345612bf867 84 ATwaitForWord("OK\r",5000);
pathfindr 12:8345612bf867 85 }
pathfindr 12:8345612bf867 86 _vreg_en = 0;
pathfindr 12:8345612bf867 87 }
pathfindr 12:8345612bf867 88
pathfindr 12:8345612bf867 89 bool Modem::registerOnNetwork(int maxAttempts, uint32_t timeout)
pathfindr 12:8345612bf867 90 {
pathfindr 12:8345612bf867 91 bool registered = false;
pathfindr 12:8345612bf867 92 int attempt = 0;
pathfindr 12:8345612bf867 93 Timer t;
pathfindr 12:8345612bf867 94 t.start();
pathfindr 12:8345612bf867 95 //TRY X NUMBER OF TIMES
pathfindr 12:8345612bf867 96 while (attempt <= maxAttempts) {
pathfindr 12:8345612bf867 97 attempt ++;
pathfindr 12:8345612bf867 98 t.reset();
pathfindr 12:8345612bf867 99 uint32_t startmillis = t.read_ms();
pathfindr 12:8345612bf867 100 uint32_t runtime = 0;
pathfindr 12:8345612bf867 101 while(!registered && runtime < timeout) {
pathfindr 12:8345612bf867 102 runtime = (t.read_ms() - startmillis);
pathfindr 12:8345612bf867 103 Thread::wait(1000);
pathfindr 12:8345612bf867 104 ATsendCMD("AT+CREG?");
pathfindr 12:8345612bf867 105 if (ATwaitForWord("+CREG: 0,5",5000)) {
pathfindr 12:8345612bf867 106 registered = true;
pathfindr 12:8345612bf867 107 };
pathfindr 12:8345612bf867 108 }
pathfindr 12:8345612bf867 109 if (!registered) {
pathfindr 12:8345612bf867 110 off(true);
pathfindr 12:8345612bf867 111 on();
pathfindr 12:8345612bf867 112 }
pathfindr 12:8345612bf867 113 }
pathfindr 12:8345612bf867 114 t.stop();
pathfindr 12:8345612bf867 115 if (registered) {
pathfindr 12:8345612bf867 116 return true;
pathfindr 12:8345612bf867 117 } else {
pathfindr 12:8345612bf867 118 return false;
pathfindr 12:8345612bf867 119 }
pathfindr 12:8345612bf867 120 }
pathfindr 12:8345612bf867 121
pathfindr 12:8345612bf867 122 bool Modem::USSDsend(char* message, int maxAttempts)
pathfindr 12:8345612bf867 123 {
pathfindr 12:8345612bf867 124 bool sent = false;
pathfindr 12:8345612bf867 125 int attempt = 0;
pathfindr 12:8345612bf867 126 //TRY X NUMBER OF TIMES
pathfindr 12:8345612bf867 127 while (!sent && attempt <= maxAttempts) {
pathfindr 12:8345612bf867 128 attempt ++;
pathfindr 12:8345612bf867 129 char bytestosend[160];
pathfindr 12:8345612bf867 130 sprintf(bytestosend, "AT+CUSD=1,\"#469*%s#\"", message);
pathfindr 12:8345612bf867 131 ATsendCMD(bytestosend);
pathfindr 12:8345612bf867 132 if (ATwaitForWord("+CUSD: 0",10000)) {
pathfindr 12:8345612bf867 133 flushSerial();
pathfindr 12:8345612bf867 134 sent = true;
pathfindr 12:8345612bf867 135 };
pathfindr 12:8345612bf867 136 }
pathfindr 12:8345612bf867 137 if (sent) {
pathfindr 12:8345612bf867 138 return true;
pathfindr 12:8345612bf867 139 } else {
pathfindr 12:8345612bf867 140 return false;
pathfindr 12:8345612bf867 141 }
pathfindr 12:8345612bf867 142 }
pathfindr 12:8345612bf867 143
pathfindr 12:8345612bf867 144 char* Modem::USSDreceive(uint32_t timeout)
pathfindr 12:8345612bf867 145 {
pathfindr 12:8345612bf867 146 bool received = false;
pathfindr 12:8345612bf867 147 int bufferIndex = 0;
pathfindr 12:8345612bf867 148 Timer t;
pathfindr 12:8345612bf867 149 t.start();
pathfindr 12:8345612bf867 150 //TRY UNTIL TIMEOUT
pathfindr 12:8345612bf867 151 uint32_t startmillis = t.read_ms();
pathfindr 12:8345612bf867 152 uint32_t runtime = 0;
pathfindr 12:8345612bf867 153 memset(ATinBuffer, 0, sizeof(ATinBuffer));
pathfindr 12:8345612bf867 154 while(!received && runtime < timeout) {
pathfindr 12:8345612bf867 155 runtime = (t.read_ms() - startmillis);
pathfindr 12:8345612bf867 156 //ATsendCMD("AT+CUSD?");
pathfindr 12:8345612bf867 157 if (ATwaitForWord("+CUSD: 0,\"%",2000)) {
pathfindr 12:8345612bf867 158 led1 = 0;
pathfindr 12:8345612bf867 159 while(!received && runtime < timeout) {
pathfindr 12:8345612bf867 160 runtime = (t.read_ms() - startmillis);
pathfindr 12:8345612bf867 161 if(_uart.readable()) {
pathfindr 12:8345612bf867 162 char c = _uart.getc();
pathfindr 12:8345612bf867 163 if (c == '%') {
pathfindr 12:8345612bf867 164 led1 = 1;
pathfindr 12:8345612bf867 165 flushSerial();
pathfindr 12:8345612bf867 166 received = true;
pathfindr 12:8345612bf867 167 } else {
pathfindr 12:8345612bf867 168 ATinBuffer[bufferIndex] = c;
pathfindr 12:8345612bf867 169 }
pathfindr 12:8345612bf867 170 bufferIndex ++; //this must got at end otherwise first digit is \0
pathfindr 12:8345612bf867 171 }
pathfindr 12:8345612bf867 172 }
pathfindr 12:8345612bf867 173 }
pathfindr 12:8345612bf867 174 }
pathfindr 12:8345612bf867 175 if (received) {
pathfindr 12:8345612bf867 176 return ATinBuffer;
pathfindr 12:8345612bf867 177 } else {
pathfindr 12:8345612bf867 178 return "error";
pathfindr 12:8345612bf867 179 }
pathfindr 12:8345612bf867 180 }
pathfindr 12:8345612bf867 181
pathfindr 12:8345612bf867 182
pathfindr 7:e9a19750700d 183 Modem::~Modem(){};