XBEE code to reduce program size
Dependencies: mbed
XBEE/XBEE.cpp@0:7c9e8aaa85d4, 2018-10-14 (annotated)
- Committer:
- giovanniwsn
- Date:
- Sun Oct 14 05:47:42 2018 +0000
- Revision:
- 0:7c9e8aaa85d4
- Child:
- 1:b0c665b697c7
XBEE code to reduce program size
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
giovanniwsn | 0:7c9e8aaa85d4 | 1 | #include "XBEE.h" |
giovanniwsn | 0:7c9e8aaa85d4 | 2 | |
giovanniwsn | 0:7c9e8aaa85d4 | 3 | /* Class constructor */ |
giovanniwsn | 0:7c9e8aaa85d4 | 4 | XBEE::XBEE(Serial* serial, int baud):xbee(serial) |
giovanniwsn | 0:7c9e8aaa85d4 | 5 | { |
giovanniwsn | 0:7c9e8aaa85d4 | 6 | xbee->baud(baud); |
giovanniwsn | 0:7c9e8aaa85d4 | 7 | /* Enable the reception of bytes on the serial interface by providing a cb */ |
giovanniwsn | 0:7c9e8aaa85d4 | 8 | xbee->attach(callback(this, &XBEE::recvAttach), Serial::RxIrq); |
giovanniwsn | 0:7c9e8aaa85d4 | 9 | init(); |
giovanniwsn | 0:7c9e8aaa85d4 | 10 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 11 | |
giovanniwsn | 0:7c9e8aaa85d4 | 12 | /* Initialize the Device XBEE */ |
giovanniwsn | 0:7c9e8aaa85d4 | 13 | void XBEE::init(void) |
giovanniwsn | 0:7c9e8aaa85d4 | 14 | { |
giovanniwsn | 0:7c9e8aaa85d4 | 15 | count_tx = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 16 | count_rx = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 17 | memset(&buf_tx,0,sizeof(buf_tx)); |
giovanniwsn | 0:7c9e8aaa85d4 | 18 | memset(&buf_rx,0,sizeof(buf_rx)); |
giovanniwsn | 0:7c9e8aaa85d4 | 19 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 20 | |
giovanniwsn | 0:7c9e8aaa85d4 | 21 | /* Send message to the destination */ |
giovanniwsn | 0:7c9e8aaa85d4 | 22 | //int XBEE::send_msg(char * str, int dest) |
giovanniwsn | 0:7c9e8aaa85d4 | 23 | int XBEE::send_msg(char * str) |
giovanniwsn | 0:7c9e8aaa85d4 | 24 | { |
giovanniwsn | 0:7c9e8aaa85d4 | 25 | int n = strlen(str); |
giovanniwsn | 0:7c9e8aaa85d4 | 26 | if(n > 92) { |
giovanniwsn | 0:7c9e8aaa85d4 | 27 | return -1; |
giovanniwsn | 0:7c9e8aaa85d4 | 28 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 29 | //create_TX(str,dest); |
giovanniwsn | 0:7c9e8aaa85d4 | 30 | create_TX(str); |
giovanniwsn | 0:7c9e8aaa85d4 | 31 | sendBuffer(); |
giovanniwsn | 0:7c9e8aaa85d4 | 32 | wait(0.2); |
giovanniwsn | 0:7c9e8aaa85d4 | 33 | return 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 34 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 35 | |
giovanniwsn | 0:7c9e8aaa85d4 | 36 | /* Receives a message, writes in str */ |
giovanniwsn | 0:7c9e8aaa85d4 | 37 | int XBEE::recv_msg(char * buf, int tam) |
giovanniwsn | 0:7c9e8aaa85d4 | 38 | { |
giovanniwsn | 0:7c9e8aaa85d4 | 39 | pkt_tx *p; |
giovanniwsn | 0:7c9e8aaa85d4 | 40 | int i; |
giovanniwsn | 0:7c9e8aaa85d4 | 41 | int ptam = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 42 | int j = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 43 | |
giovanniwsn | 0:7c9e8aaa85d4 | 44 | memset(buf,0,tam); |
giovanniwsn | 0:7c9e8aaa85d4 | 45 | |
giovanniwsn | 0:7c9e8aaa85d4 | 46 | for(i = 0; i < count_rx; i++) { |
giovanniwsn | 0:7c9e8aaa85d4 | 47 | if(buf_rx[i] == 0x7E) { |
giovanniwsn | 0:7c9e8aaa85d4 | 48 | |
giovanniwsn | 0:7c9e8aaa85d4 | 49 | p = (pkt_tx *) &buf_rx[i]; |
giovanniwsn | 0:7c9e8aaa85d4 | 50 | |
giovanniwsn | 0:7c9e8aaa85d4 | 51 | if(p->frame_type == 0x90) { |
giovanniwsn | 0:7c9e8aaa85d4 | 52 | ptam = p->length - 0x0C; |
giovanniwsn | 0:7c9e8aaa85d4 | 53 | if(tam < ptam + j) { |
giovanniwsn | 0:7c9e8aaa85d4 | 54 | return -1; |
giovanniwsn | 0:7c9e8aaa85d4 | 55 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 56 | // posicao aonde comeca a msg em um pacote de Receive |
giovanniwsn | 0:7c9e8aaa85d4 | 57 | memcpy(&buf[j], ((char *)(&p->broadcast_radius)), ptam); |
giovanniwsn | 0:7c9e8aaa85d4 | 58 | j += ptam; |
giovanniwsn | 0:7c9e8aaa85d4 | 59 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 60 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 61 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 62 | return j; |
giovanniwsn | 0:7c9e8aaa85d4 | 63 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 64 | |
giovanniwsn | 0:7c9e8aaa85d4 | 65 | /* Chamada por Interrupcao, RX */ |
giovanniwsn | 0:7c9e8aaa85d4 | 66 | void XBEE::recvAttach (void) |
giovanniwsn | 0:7c9e8aaa85d4 | 67 | { |
giovanniwsn | 0:7c9e8aaa85d4 | 68 | //if (serial_RX_ctrl == 1) |
giovanniwsn | 0:7c9e8aaa85d4 | 69 | while(xbee->readable()) { |
giovanniwsn | 0:7c9e8aaa85d4 | 70 | buf_rx[count_rx%sizeof(buf_rx)] = xbee->getc(); |
giovanniwsn | 0:7c9e8aaa85d4 | 71 | count_rx++; |
giovanniwsn | 0:7c9e8aaa85d4 | 72 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 73 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 74 | |
giovanniwsn | 0:7c9e8aaa85d4 | 75 | /* Envia pacote do buffer_tx */ |
giovanniwsn | 0:7c9e8aaa85d4 | 76 | void XBEE::sendBuffer(void) |
giovanniwsn | 0:7c9e8aaa85d4 | 77 | { |
giovanniwsn | 0:7c9e8aaa85d4 | 78 | if(xbee->writeable()) { |
giovanniwsn | 0:7c9e8aaa85d4 | 79 | for(int i = 0; i < count_tx; i++) { |
giovanniwsn | 0:7c9e8aaa85d4 | 80 | xbee->putc(buf_tx[i]); |
giovanniwsn | 0:7c9e8aaa85d4 | 81 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 82 | //pode zerar pacote aqui |
giovanniwsn | 0:7c9e8aaa85d4 | 83 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 84 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 85 | |
giovanniwsn | 0:7c9e8aaa85d4 | 86 | /* Cria pacote de mensagem */ |
giovanniwsn | 0:7c9e8aaa85d4 | 87 | //int XBEE::create_TX(char * str, int dest) |
giovanniwsn | 0:7c9e8aaa85d4 | 88 | int XBEE::create_TX(char * str) |
giovanniwsn | 0:7c9e8aaa85d4 | 89 | { |
giovanniwsn | 0:7c9e8aaa85d4 | 90 | int i = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 91 | int n = strlen(str); |
giovanniwsn | 0:7c9e8aaa85d4 | 92 | uint8_t count = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 93 | |
giovanniwsn | 0:7c9e8aaa85d4 | 94 | pkt_tx *p = (pkt_tx *) buf_tx; // ponteiro para buffer global |
giovanniwsn | 0:7c9e8aaa85d4 | 95 | |
giovanniwsn | 0:7c9e8aaa85d4 | 96 | |
giovanniwsn | 0:7c9e8aaa85d4 | 97 | if(n > 92) { |
giovanniwsn | 0:7c9e8aaa85d4 | 98 | // Error: data nao pode exceder 92 bytes |
giovanniwsn | 0:7c9e8aaa85d4 | 99 | return -1; |
giovanniwsn | 0:7c9e8aaa85d4 | 100 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 101 | |
giovanniwsn | 0:7c9e8aaa85d4 | 102 | count_tx = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 103 | memset(&buf_tx,0,sizeof(buf_tx)); |
giovanniwsn | 0:7c9e8aaa85d4 | 104 | |
giovanniwsn | 0:7c9e8aaa85d4 | 105 | p->start_delimiter = 0x7E; |
giovanniwsn | 0:7c9e8aaa85d4 | 106 | p->length = 0x0E + n; // pacote vazio + dados |
giovanniwsn | 0:7c9e8aaa85d4 | 107 | p->frame_type = 0x10; // transmit request |
giovanniwsn | 0:7c9e8aaa85d4 | 108 | p->frame_id = 1; |
giovanniwsn | 0:7c9e8aaa85d4 | 109 | |
giovanniwsn | 0:7c9e8aaa85d4 | 110 | //if(dest == XBEE_COORD) { |
giovanniwsn | 0:7c9e8aaa85d4 | 111 | p->dest_addr64[6] = 0x00; //SL_H |
giovanniwsn | 0:7c9e8aaa85d4 | 112 | p->dest_addr64[7] = 0x00; //SL_L |
giovanniwsn | 0:7c9e8aaa85d4 | 113 | /*} else if(dest == XBEE_BROAD) { |
giovanniwsn | 0:7c9e8aaa85d4 | 114 | p->dest_addr64[6] = 0xFF; //SL_H |
giovanniwsn | 0:7c9e8aaa85d4 | 115 | p->dest_addr64[7] = 0xFF; //SL_L |
giovanniwsn | 0:7c9e8aaa85d4 | 116 | } else { |
giovanniwsn | 0:7c9e8aaa85d4 | 117 | p->dest_addr64[0] = 0x00; |
giovanniwsn | 0:7c9e8aaa85d4 | 118 | p->dest_addr64[1] = 0x13; |
giovanniwsn | 0:7c9e8aaa85d4 | 119 | p->dest_addr64[2] = 0xA2; |
giovanniwsn | 0:7c9e8aaa85d4 | 120 | p->dest_addr64[3] = 0x00; |
giovanniwsn | 0:7c9e8aaa85d4 | 121 | |
giovanniwsn | 0:7c9e8aaa85d4 | 122 | p->dest_addr64[4] = (dest >> 24); |
giovanniwsn | 0:7c9e8aaa85d4 | 123 | p->dest_addr64[5] = (dest & 0x00FF0000) >> 16; |
giovanniwsn | 0:7c9e8aaa85d4 | 124 | p->dest_addr64[6] = (dest & 0x0000FF00) >> 8; |
giovanniwsn | 0:7c9e8aaa85d4 | 125 | p->dest_addr64[7] = (dest & 0x000000FF); |
giovanniwsn | 0:7c9e8aaa85d4 | 126 | } */ |
giovanniwsn | 0:7c9e8aaa85d4 | 127 | p->dest_addr16[0] = 0xFF; //MY_H |
giovanniwsn | 0:7c9e8aaa85d4 | 128 | p->dest_addr16[1] = 0xFF; //MY_L |
giovanniwsn | 0:7c9e8aaa85d4 | 129 | |
giovanniwsn | 0:7c9e8aaa85d4 | 130 | memcpy(&p->rf_data, str, n); |
giovanniwsn | 0:7c9e8aaa85d4 | 131 | |
giovanniwsn | 0:7c9e8aaa85d4 | 132 | // Calcula Checksum |
giovanniwsn | 0:7c9e8aaa85d4 | 133 | |
giovanniwsn | 0:7c9e8aaa85d4 | 134 | // comeca 3 pra frente, tenq passar 3 adiante no final |
giovanniwsn | 0:7c9e8aaa85d4 | 135 | // para ler o mesmo tamanho de pacote |
giovanniwsn | 0:7c9e8aaa85d4 | 136 | for(i = 3; i < p->length + 3; i++) { |
giovanniwsn | 0:7c9e8aaa85d4 | 137 | count += buf_tx[i]; |
giovanniwsn | 0:7c9e8aaa85d4 | 138 | //printf("\n%d\n", count); |
giovanniwsn | 0:7c9e8aaa85d4 | 139 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 140 | count = 0xFF - count; |
giovanniwsn | 0:7c9e8aaa85d4 | 141 | |
giovanniwsn | 0:7c9e8aaa85d4 | 142 | p->rf_data[n] = count; |
giovanniwsn | 0:7c9e8aaa85d4 | 143 | |
giovanniwsn | 0:7c9e8aaa85d4 | 144 | //p->length tem o tamanho soh do frame, |
giovanniwsn | 0:7c9e8aaa85d4 | 145 | //pacote total eh o starter + length alto + length baixo + checksum |
giovanniwsn | 0:7c9e8aaa85d4 | 146 | count_tx = p->length + 4; |
giovanniwsn | 0:7c9e8aaa85d4 | 147 | return count_tx; |
giovanniwsn | 0:7c9e8aaa85d4 | 148 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 149 | |
giovanniwsn | 0:7c9e8aaa85d4 | 150 | /* Active or Desactive Serial RX */ |
giovanniwsn | 0:7c9e8aaa85d4 | 151 | /* |
giovanniwsn | 0:7c9e8aaa85d4 | 152 | void XBEE::read_active(uint8_t val){ |
giovanniwsn | 0:7c9e8aaa85d4 | 153 | serial_RX_ctrl = val; |
giovanniwsn | 0:7c9e8aaa85d4 | 154 | }*/ |
giovanniwsn | 0:7c9e8aaa85d4 | 155 | |
giovanniwsn | 0:7c9e8aaa85d4 | 156 | /* Printa todo o buffer de Receive, e limpa */ |
giovanniwsn | 0:7c9e8aaa85d4 | 157 | /* |
giovanniwsn | 0:7c9e8aaa85d4 | 158 | void XBEE::printBuffer(void) |
giovanniwsn | 0:7c9e8aaa85d4 | 159 | { |
giovanniwsn | 0:7c9e8aaa85d4 | 160 | char flag_msg = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 161 | int size = sizeof(buf_rx); |
giovanniwsn | 0:7c9e8aaa85d4 | 162 | if(count_rx < size) { |
giovanniwsn | 0:7c9e8aaa85d4 | 163 | size = count_rx; |
giovanniwsn | 0:7c9e8aaa85d4 | 164 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 165 | for(int i = 0; i < size; i++) { |
giovanniwsn | 0:7c9e8aaa85d4 | 166 | printf("%c", buf_rx[i]); |
giovanniwsn | 0:7c9e8aaa85d4 | 167 | flag_msg++; |
giovanniwsn | 0:7c9e8aaa85d4 | 168 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 169 | if (flag_msg) { |
giovanniwsn | 0:7c9e8aaa85d4 | 170 | printf("\n"); |
giovanniwsn | 0:7c9e8aaa85d4 | 171 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 172 | |
giovanniwsn | 0:7c9e8aaa85d4 | 173 | //Limpa buffer |
giovanniwsn | 0:7c9e8aaa85d4 | 174 | count_rx = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 175 | memset(&buf_rx,0,sizeof(buf_rx)); |
giovanniwsn | 0:7c9e8aaa85d4 | 176 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 177 | */ |
giovanniwsn | 0:7c9e8aaa85d4 | 178 | |
giovanniwsn | 0:7c9e8aaa85d4 | 179 | // Verify Packet Checksum return 0 if msg OK, just work with Transmit Package |
giovanniwsn | 0:7c9e8aaa85d4 | 180 | /* |
giovanniwsn | 0:7c9e8aaa85d4 | 181 | char XBEE::validPackage(uint8_t * buf, int tam) |
giovanniwsn | 0:7c9e8aaa85d4 | 182 | { |
giovanniwsn | 0:7c9e8aaa85d4 | 183 | int i = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 184 | uint8_t count = 0; |
giovanniwsn | 0:7c9e8aaa85d4 | 185 | |
giovanniwsn | 0:7c9e8aaa85d4 | 186 | if(buf[0] != 0x7E) return 1; |
giovanniwsn | 0:7c9e8aaa85d4 | 187 | if(buf[1] != 0) return 2; |
giovanniwsn | 0:7c9e8aaa85d4 | 188 | if(buf[2] != tam-4) return 3; |
giovanniwsn | 0:7c9e8aaa85d4 | 189 | |
giovanniwsn | 0:7c9e8aaa85d4 | 190 | for(i = 3; i < tam; i++) { |
giovanniwsn | 0:7c9e8aaa85d4 | 191 | count += buf[i]; |
giovanniwsn | 0:7c9e8aaa85d4 | 192 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 193 | if(count != 0xFF) return 4; |
giovanniwsn | 0:7c9e8aaa85d4 | 194 | |
giovanniwsn | 0:7c9e8aaa85d4 | 195 | return 0; // OK |
giovanniwsn | 0:7c9e8aaa85d4 | 196 | } |
giovanniwsn | 0:7c9e8aaa85d4 | 197 | */ |