Éric Bisson / Mbed 2 deprecated Code_APP3_R

app3

Dependencies:   mbed

Fork of Code_APP1 by Louis Beaulieu

xbee.cpp@9:dc81d8ee4a97, 2017-02-14 (annotated)

Committer:
ericbisson
Date:
Tue Feb 14 04:11:07 2017 +0000
Revision:
9:dc81d8ee4a97
app3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ericbisson 9:dc81d8ee4a97 1 #include "xbee.h"
ericbisson 9:dc81d8ee4a97 2
ericbisson 9:dc81d8ee4a97 3 Timeout timeOut;
ericbisson 9:dc81d8ee4a97 4 PwmOut led_error(LED2);
ericbisson 9:dc81d8ee4a97 5 void LED_TurnOff()
ericbisson 9:dc81d8ee4a97 6 {
ericbisson 9:dc81d8ee4a97 7 led_error = 0;
ericbisson 9:dc81d8ee4a97 8 }
ericbisson 9:dc81d8ee4a97 9
ericbisson 9:dc81d8ee4a97 10 //--------------------------------------------------------------//
ericbisson 9:dc81d8ee4a97 11 // Fonction d'envoie de données pour ZigBee (Transmit request)
ericbisson 9:dc81d8ee4a97 12 // Testé et fonctionnel
ericbisson 9:dc81d8ee4a97 13 //--------------------------------------------------------------//
ericbisson 9:dc81d8ee4a97 14 void send(Serial* COM, CArray* message)
ericbisson 9:dc81d8ee4a97 15 {
ericbisson 9:dc81d8ee4a97 16 short opt_size = 0;
ericbisson 9:dc81d8ee4a97 17 COM->putc(0x7E); // Start delimiter
ericbisson 9:dc81d8ee4a97 18 COM->putc(0x00); // length MSB is always 0
ericbisson 9:dc81d8ee4a97 19
ericbisson 9:dc81d8ee4a97 20 if (message->_FrameType == 0x08) // Les commandes AT ne reçoivent pas d'addresses
ericbisson 9:dc81d8ee4a97 21 {
ericbisson 9:dc81d8ee4a97 22 COM->putc(6);
ericbisson 9:dc81d8ee4a97 23 }
ericbisson 9:dc81d8ee4a97 24 else
ericbisson 9:dc81d8ee4a97 25 {
ericbisson 9:dc81d8ee4a97 26 COM->putc(message->size + 12 + message->opt_size);
ericbisson 9:dc81d8ee4a97 27 }
ericbisson 9:dc81d8ee4a97 28
ericbisson 9:dc81d8ee4a97 29 COM->putc(message->_FrameType);
ericbisson 9:dc81d8ee4a97 30 COM->putc(0x01); // Frame ID
ericbisson 9:dc81d8ee4a97 31
ericbisson 9:dc81d8ee4a97 32 if (message->_FrameType != 0x08) // Les commandes AT ne reçoivent pas d'addresses
ericbisson 9:dc81d8ee4a97 33 {
ericbisson 9:dc81d8ee4a97 34 COM->putc(message->_64bit.bit[0]);
ericbisson 9:dc81d8ee4a97 35 COM->putc(message->_64bit.bit[1]);
ericbisson 9:dc81d8ee4a97 36 COM->putc(message->_64bit.bit[2]);
ericbisson 9:dc81d8ee4a97 37 COM->putc(message->_64bit.bit[3]);
ericbisson 9:dc81d8ee4a97 38 COM->putc(message->_64bit.bit[4]);
ericbisson 9:dc81d8ee4a97 39 COM->putc(message->_64bit.bit[5]);
ericbisson 9:dc81d8ee4a97 40 COM->putc(message->_64bit.bit[6]);
ericbisson 9:dc81d8ee4a97 41 COM->putc(message->_64bit.bit[7]);
ericbisson 9:dc81d8ee4a97 42 COM->putc(message->_16bit.bit[0]);
ericbisson 9:dc81d8ee4a97 43 COM->putc(message->_16bit.bit[1]);
ericbisson 9:dc81d8ee4a97 44
ericbisson 9:dc81d8ee4a97 45 for (int i = 0; i < message->opt_size; i++)
ericbisson 9:dc81d8ee4a97 46 {
ericbisson 9:dc81d8ee4a97 47 opt_size += message->options[i];
ericbisson 9:dc81d8ee4a97 48 COM->putc(message->options[i]);
ericbisson 9:dc81d8ee4a97 49 }
ericbisson 9:dc81d8ee4a97 50 }
ericbisson 9:dc81d8ee4a97 51
ericbisson 9:dc81d8ee4a97 52 for (int j = 0; j < message->size; j++)
ericbisson 9:dc81d8ee4a97 53 {
ericbisson 9:dc81d8ee4a97 54 COM->putc(message->_ptr[j]);
ericbisson 9:dc81d8ee4a97 55 }
ericbisson 9:dc81d8ee4a97 56 COM->putc(calculate_checksum(message,
ericbisson 9:dc81d8ee4a97 57 message->_FrameType +
ericbisson 9:dc81d8ee4a97 58 0x01 +
ericbisson 9:dc81d8ee4a97 59 opt_size +
ericbisson 9:dc81d8ee4a97 60 message->_16bit.bit[0] +
ericbisson 9:dc81d8ee4a97 61 message->_16bit.bit[1] +
ericbisson 9:dc81d8ee4a97 62 message->_64bit.bit[0] +
ericbisson 9:dc81d8ee4a97 63 message->_64bit.bit[1] +
ericbisson 9:dc81d8ee4a97 64 message->_64bit.bit[2] +
ericbisson 9:dc81d8ee4a97 65 message->_64bit.bit[3] +
ericbisson 9:dc81d8ee4a97 66 message->_64bit.bit[4] +
ericbisson 9:dc81d8ee4a97 67 message->_64bit.bit[5] +
ericbisson 9:dc81d8ee4a97 68 message->_64bit.bit[6] +
ericbisson 9:dc81d8ee4a97 69 message->_64bit.bit[7]
ericbisson 9:dc81d8ee4a97 70 ));
ericbisson 9:dc81d8ee4a97 71 }
ericbisson 9:dc81d8ee4a97 72 //--------------------------------------------------------------//
ericbisson 9:dc81d8ee4a97 73
ericbisson 9:dc81d8ee4a97 74 //--------------------------------------------------------------//
ericbisson 9:dc81d8ee4a97 75 // Fonction pour la réception de données (Packet Receive)
ericbisson 9:dc81d8ee4a97 76 // Testé et fonctionnel
ericbisson 9:dc81d8ee4a97 77 //--------------------------------------------------------------//
ericbisson 9:dc81d8ee4a97 78 void read(Serial* COM, CArray* returnValue)
ericbisson 9:dc81d8ee4a97 79 {
ericbisson 9:dc81d8ee4a97 80 char BYTE_ID = 0;
ericbisson 9:dc81d8ee4a97 81 char opts = 0;
ericbisson 9:dc81d8ee4a97 82 bool bIsTrame = false;
ericbisson 9:dc81d8ee4a97 83 while (true)
ericbisson 9:dc81d8ee4a97 84 if (COM->readable())
ericbisson 9:dc81d8ee4a97 85 {
ericbisson 9:dc81d8ee4a97 86 char value = COM->getc();
ericbisson 9:dc81d8ee4a97 87
ericbisson 9:dc81d8ee4a97 88 if (bIsTrame)
ericbisson 9:dc81d8ee4a97 89 {
ericbisson 9:dc81d8ee4a97 90 switch (BYTE_ID)
ericbisson 9:dc81d8ee4a97 91 {
ericbisson 9:dc81d8ee4a97 92 case 1:
ericbisson 9:dc81d8ee4a97 93 break;
ericbisson 9:dc81d8ee4a97 94 case 2: // on ignore le 1, car c'est toujours 0x00
ericbisson 9:dc81d8ee4a97 95 returnValue->size = value - 12;
ericbisson 9:dc81d8ee4a97 96 break;
ericbisson 9:dc81d8ee4a97 97 case 3:
ericbisson 9:dc81d8ee4a97 98 if (value != 0x90)
ericbisson 9:dc81d8ee4a97 99 return;
ericbisson 9:dc81d8ee4a97 100 returnValue->_FrameType = value;
ericbisson 9:dc81d8ee4a97 101 break;
ericbisson 9:dc81d8ee4a97 102 case 4:
ericbisson 9:dc81d8ee4a97 103 case 5:
ericbisson 9:dc81d8ee4a97 104 case 6:
ericbisson 9:dc81d8ee4a97 105 case 7:
ericbisson 9:dc81d8ee4a97 106 case 8:
ericbisson 9:dc81d8ee4a97 107 case 9:
ericbisson 9:dc81d8ee4a97 108 case 10:
ericbisson 9:dc81d8ee4a97 109 case 11:
ericbisson 9:dc81d8ee4a97 110 returnValue->_64bit.bit[BYTE_ID - 4] = value;
ericbisson 9:dc81d8ee4a97 111 break;
ericbisson 9:dc81d8ee4a97 112 case 12:
ericbisson 9:dc81d8ee4a97 113 case 13: // <-- Addresse 16 bit de l'envoyeur ici
ericbisson 9:dc81d8ee4a97 114 returnValue->_16bit.bit[BYTE_ID - 12] = value;
ericbisson 9:dc81d8ee4a97 115 break;
ericbisson 9:dc81d8ee4a97 116 case 14: // je gère pas les options pour là
ericbisson 9:dc81d8ee4a97 117 opts = value;
ericbisson 9:dc81d8ee4a97 118 break;
ericbisson 9:dc81d8ee4a97 119 default:
ericbisson 9:dc81d8ee4a97 120 if (BYTE_ID < 15 + returnValue->size)
ericbisson 9:dc81d8ee4a97 121 {
ericbisson 9:dc81d8ee4a97 122 if (returnValue->_ptr == NULL)
ericbisson 9:dc81d8ee4a97 123 returnValue->_ptr = new char[returnValue->size];
ericbisson 9:dc81d8ee4a97 124
ericbisson 9:dc81d8ee4a97 125 returnValue->_ptr[BYTE_ID - 15] = value;
ericbisson 9:dc81d8ee4a97 126 break;
ericbisson 9:dc81d8ee4a97 127 }
ericbisson 9:dc81d8ee4a97 128 // Finalement, le checksum. On vérifie que c'est bon
ericbisson 9:dc81d8ee4a97 129 if (value != calculate_checksum(returnValue,
ericbisson 9:dc81d8ee4a97 130 0x90 +
ericbisson 9:dc81d8ee4a97 131 opts +
ericbisson 9:dc81d8ee4a97 132 returnValue->_16bit.bit[0] +
ericbisson 9:dc81d8ee4a97 133 returnValue->_16bit.bit[1] +
ericbisson 9:dc81d8ee4a97 134 returnValue->_64bit.bit[0] +
ericbisson 9:dc81d8ee4a97 135 returnValue->_64bit.bit[1] +
ericbisson 9:dc81d8ee4a97 136 returnValue->_64bit.bit[2] +
ericbisson 9:dc81d8ee4a97 137 returnValue->_64bit.bit[3] +
ericbisson 9:dc81d8ee4a97 138 returnValue->_64bit.bit[4] +
ericbisson 9:dc81d8ee4a97 139 returnValue->_64bit.bit[5] +
ericbisson 9:dc81d8ee4a97 140 returnValue->_64bit.bit[6] +
ericbisson 9:dc81d8ee4a97 141 returnValue->_64bit.bit[7]
ericbisson 9:dc81d8ee4a97 142 ))
ericbisson 9:dc81d8ee4a97 143 {
ericbisson 9:dc81d8ee4a97 144 // Gestion d'erreur ici?
ericbisson 9:dc81d8ee4a97 145 led_error = 1;
ericbisson 9:dc81d8ee4a97 146 timeOut.attach(LED_TurnOff, 1);
ericbisson 9:dc81d8ee4a97 147 }
ericbisson 9:dc81d8ee4a97 148 return;
ericbisson 9:dc81d8ee4a97 149 }
ericbisson 9:dc81d8ee4a97 150 }
ericbisson 9:dc81d8ee4a97 151 else if (value == 0x7E)
ericbisson 9:dc81d8ee4a97 152 bIsTrame = true;
ericbisson 9:dc81d8ee4a97 153 else
ericbisson 9:dc81d8ee4a97 154 return;
ericbisson 9:dc81d8ee4a97 155
ericbisson 9:dc81d8ee4a97 156 //wait_ms(3); // petit sleep pour recevoir un nouveau byte
ericbisson 9:dc81d8ee4a97 157 BYTE_ID++;
ericbisson 9:dc81d8ee4a97 158 }
ericbisson 9:dc81d8ee4a97 159 }
ericbisson 9:dc81d8ee4a97 160 //--------------------------------------------------------------//
ericbisson 9:dc81d8ee4a97 161
ericbisson 9:dc81d8ee4a97 162 //--------------------------------------------------------------//
ericbisson 9:dc81d8ee4a97 163 // Fonction de checksum pour le protocole ZigBee
ericbisson 9:dc81d8ee4a97 164 // Testé et fonctionnel
ericbisson 9:dc81d8ee4a97 165 //--------------------------------------------------------------//
ericbisson 9:dc81d8ee4a97 166 char calculate_checksum(CArray* message, short header_size)
ericbisson 9:dc81d8ee4a97 167 {
ericbisson 9:dc81d8ee4a97 168 short sum = header_size;
ericbisson 9:dc81d8ee4a97 169 if (message != NULL)
ericbisson 9:dc81d8ee4a97 170 {
ericbisson 9:dc81d8ee4a97 171 for (int i = 0; i < message->size; i++)
ericbisson 9:dc81d8ee4a97 172 {
ericbisson 9:dc81d8ee4a97 173 sum += message->_ptr[i];
ericbisson 9:dc81d8ee4a97 174 }
ericbisson 9:dc81d8ee4a97 175 }
ericbisson 9:dc81d8ee4a97 176 return 0xFF - (sum & 0x00FF);
ericbisson 9:dc81d8ee4a97 177 }
ericbisson 9:dc81d8ee4a97 178 //--------------------------------------------------------------//
ericbisson 9:dc81d8ee4a97 179
ericbisson 9:dc81d8ee4a97 180 void setPAN(Serial* COM, short pan_id)
ericbisson 9:dc81d8ee4a97 181 {
ericbisson 9:dc81d8ee4a97 182 CArray DATA_TO_SEND;
ericbisson 9:dc81d8ee4a97 183 for (int j = 0; j < 8; j++) // Je force tout à 0 pour les addresses
ericbisson 9:dc81d8ee4a97 184 DATA_TO_SEND._64bit.bit[j] = 0;
ericbisson 9:dc81d8ee4a97 185 DATA_TO_SEND._16bit.bit[0] = 0;
ericbisson 9:dc81d8ee4a97 186 DATA_TO_SEND._16bit.bit[1] = 0;
ericbisson 9:dc81d8ee4a97 187 DATA_TO_SEND.opt_size = 0;
ericbisson 9:dc81d8ee4a97 188
ericbisson 9:dc81d8ee4a97 189 DATA_TO_SEND._FrameType = 0x08; // AT Command
ericbisson 9:dc81d8ee4a97 190 DATA_TO_SEND.size = 4;
ericbisson 9:dc81d8ee4a97 191 DATA_TO_SEND._ptr = new char[4];
ericbisson 9:dc81d8ee4a97 192 DATA_TO_SEND._ptr[0] = 'I';
ericbisson 9:dc81d8ee4a97 193 DATA_TO_SEND._ptr[1] = 'D';
ericbisson 9:dc81d8ee4a97 194 DATA_TO_SEND._ptr[2] = pan_id >> 8;
ericbisson 9:dc81d8ee4a97 195 DATA_TO_SEND._ptr[3] = pan_id & 0x00FF;
ericbisson 9:dc81d8ee4a97 196
ericbisson 9:dc81d8ee4a97 197 send(COM, &DATA_TO_SEND);
ericbisson 9:dc81d8ee4a97 198
ericbisson 9:dc81d8ee4a97 199 delete DATA_TO_SEND._ptr;
ericbisson 9:dc81d8ee4a97 200 }