Code APP3
Dependencies: mbed EthernetInterface WebSocketClient mbed-rtos BufferedSerial
Fork of APP3_Lab by
xbee.cpp@17:8abdbfa6019c, 2017-10-02 (annotated)
- Committer:
- Cheroukee
- Date:
- Mon Oct 02 15:01:34 2017 +0000
- Revision:
- 17:8abdbfa6019c
- Parent:
- 15:c4d17caf0709
- Child:
- 21:04fae6a95131
- Child:
- 22:7edae38d0758
Biere;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Cheroukee | 1:ea1b52d0a8a3 | 1 | |
Cheroukee | 1:ea1b52d0a8a3 | 2 | /*** |
Cheroukee | 1:ea1b52d0a8a3 | 3 | * xbee.cpp - en-tete de lib xbee - fouj1807 - mcgj2701 |
Cheroukee | 1:ea1b52d0a8a3 | 4 | */ |
Cheroukee | 1:ea1b52d0a8a3 | 5 | |
Cheroukee | 1:ea1b52d0a8a3 | 6 | #include "xbee.h" |
Cheroukee | 1:ea1b52d0a8a3 | 7 | |
Cheroukee | 2:a9bb12eefc08 | 8 | DigitalOut xbee_transmit_led(LED1); |
Cheroukee | 2:a9bb12eefc08 | 9 | DigitalOut xbee_receive_led(LED2); |
Cheroukee | 1:ea1b52d0a8a3 | 10 | DigitalOut xbee_reset(p8); |
Cheroukee | 1:ea1b52d0a8a3 | 11 | |
Cheroukee | 17:8abdbfa6019c | 12 | BufferedSerial xbee(p13, p14); // tx, rx |
Cheroukee | 17:8abdbfa6019c | 13 | Serial pc_usb(USBTX, USBRX); |
Cheroukee | 17:8abdbfa6019c | 14 | void Rx_interrupt(); |
Cheroukee | 17:8abdbfa6019c | 15 | |
Cheroukee | 17:8abdbfa6019c | 16 | #define BUFFER_SIZE 2048 |
Cheroukee | 17:8abdbfa6019c | 17 | |
Cheroukee | 17:8abdbfa6019c | 18 | char TransmitBuffer[BUFFER_SIZE] = {0}; |
Cheroukee | 17:8abdbfa6019c | 19 | char ReceiveBuffer[BUFFER_SIZE] = {0}; |
Cheroukee | 1:ea1b52d0a8a3 | 20 | |
Cheroukee | 17:8abdbfa6019c | 21 | volatile int rx_in = 0; |
Cheroukee | 17:8abdbfa6019c | 22 | volatile int rx_out = 0; |
Cheroukee | 17:8abdbfa6019c | 23 | /* |
Cheroukee | 17:8abdbfa6019c | 24 | void Rx_interrupt() |
Cheroukee | 17:8abdbfa6019c | 25 | { |
Cheroukee | 17:8abdbfa6019c | 26 | // Loop just in case more than one character is in UART's receive FIFO buffer |
Cheroukee | 17:8abdbfa6019c | 27 | // Stop if buffer full |
Cheroukee | 17:8abdbfa6019c | 28 | while ((xbee.readable()) && (((rx_in + 1) % BUFFER_SIZE) != rx_out)) { |
Cheroukee | 17:8abdbfa6019c | 29 | |
Cheroukee | 17:8abdbfa6019c | 30 | xbee_receive_led= !xbee_receive_led; |
Cheroukee | 17:8abdbfa6019c | 31 | ReceiveBuffer[rx_in] = xbee.getc(); |
Cheroukee | 17:8abdbfa6019c | 32 | // Uncomment to Echo to USB serial to watch data flow |
Cheroukee | 17:8abdbfa6019c | 33 | pc_usb.putc(ReceiveBuffer[rx_in]); |
Cheroukee | 17:8abdbfa6019c | 34 | rx_in = (rx_in + 1) % BUFFER_SIZE; |
Cheroukee | 17:8abdbfa6019c | 35 | } |
Cheroukee | 17:8abdbfa6019c | 36 | return; |
Cheroukee | 17:8abdbfa6019c | 37 | } |
Cheroukee | 17:8abdbfa6019c | 38 | */ |
Cheroukee | 1:ea1b52d0a8a3 | 39 | void xbee_init() |
Cheroukee | 1:ea1b52d0a8a3 | 40 | { |
Cheroukee | 17:8abdbfa6019c | 41 | // Setup a serial interrupt function to receive data |
Cheroukee | 2:a9bb12eefc08 | 42 | xbee_receive_led = 0; |
Cheroukee | 17:8abdbfa6019c | 43 | //xbee.attach(&Rx_interrupt, Serial::RxIrq); |
Cheroukee | 17:8abdbfa6019c | 44 | |
Cheroukee | 17:8abdbfa6019c | 45 | xbee_reset = 0; |
Cheroukee | 1:ea1b52d0a8a3 | 46 | |
Cheroukee | 1:ea1b52d0a8a3 | 47 | wait_ms(400); |
Cheroukee | 1:ea1b52d0a8a3 | 48 | |
Cheroukee | 1:ea1b52d0a8a3 | 49 | xbee_reset = 1; |
Cheroukee | 1:ea1b52d0a8a3 | 50 | |
Cheroukee | 1:ea1b52d0a8a3 | 51 | wait_ms(5000); |
Cheroukee | 1:ea1b52d0a8a3 | 52 | } |
Cheroukee | 1:ea1b52d0a8a3 | 53 | |
Cheroukee | 2:a9bb12eefc08 | 54 | void build_api_frame_header(int frame_data_size) |
Cheroukee | 2:a9bb12eefc08 | 55 | { |
Cheroukee | 2:a9bb12eefc08 | 56 | // Delimiter |
Cheroukee | 2:a9bb12eefc08 | 57 | TransmitBuffer[FRAME_DELIMITER_POS] = ZIGBEE_DELIMITER; |
Cheroukee | 2:a9bb12eefc08 | 58 | TransmitBuffer[FRAME_LEN_MSB_POS] = frame_data_size >> 8; |
Cheroukee | 2:a9bb12eefc08 | 59 | TransmitBuffer[FRAME_LEN_LSB_POS] = frame_data_size & 0xFF; |
Cheroukee | 2:a9bb12eefc08 | 60 | } |
Cheroukee | 2:a9bb12eefc08 | 61 | |
Cheroukee | 2:a9bb12eefc08 | 62 | void build_api_frame_checksum(int frame_data_size) |
Cheroukee | 2:a9bb12eefc08 | 63 | { |
Cheroukee | 1:ea1b52d0a8a3 | 64 | // Calculate checksum |
Cheroukee | 2:a9bb12eefc08 | 65 | char checksum = 0xFF; |
Cheroukee | 2:a9bb12eefc08 | 66 | for (int i = 3; i < FRAME_CHEKSUM_POS; i++) |
Cheroukee | 1:ea1b52d0a8a3 | 67 | { |
Cheroukee | 1:ea1b52d0a8a3 | 68 | checksum -= TransmitBuffer[i]; |
Cheroukee | 1:ea1b52d0a8a3 | 69 | } |
Cheroukee | 1:ea1b52d0a8a3 | 70 | |
Cheroukee | 1:ea1b52d0a8a3 | 71 | // Insert checksum into buffer |
Cheroukee | 2:a9bb12eefc08 | 72 | TransmitBuffer[FRAME_CHEKSUM_POS] = checksum; |
Cheroukee | 2:a9bb12eefc08 | 73 | } |
Cheroukee | 2:a9bb12eefc08 | 74 | |
Cheroukee | 2:a9bb12eefc08 | 75 | void set_api_frame_type(frame_type_t frame_type) |
Cheroukee | 2:a9bb12eefc08 | 76 | { |
Cheroukee | 2:a9bb12eefc08 | 77 | TransmitBuffer[API_FRAME_TYPE_POS] = frame_type; |
Cheroukee | 2:a9bb12eefc08 | 78 | } |
Cheroukee | 2:a9bb12eefc08 | 79 | |
Cheroukee | 2:a9bb12eefc08 | 80 | void set_api_frame_id(int id) |
Cheroukee | 2:a9bb12eefc08 | 81 | { |
Cheroukee | 2:a9bb12eefc08 | 82 | TransmitBuffer[API_FRAME_ID_POS] = id; |
Cheroukee | 2:a9bb12eefc08 | 83 | } |
Cheroukee | 2:a9bb12eefc08 | 84 | |
Cheroukee | 2:a9bb12eefc08 | 85 | void set_at_command(int at_command) |
Cheroukee | 2:a9bb12eefc08 | 86 | { |
Cheroukee | 2:a9bb12eefc08 | 87 | // NOT IMPLEMENTED |
Cheroukee | 2:a9bb12eefc08 | 88 | } |
Cheroukee | 2:a9bb12eefc08 | 89 | |
Cheroukee | 2:a9bb12eefc08 | 90 | void set_64_addr(zigbee_addr_64_t address) |
Cheroukee | 2:a9bb12eefc08 | 91 | { |
Cheroukee | 2:a9bb12eefc08 | 92 | int i = 0; |
Cheroukee | 2:a9bb12eefc08 | 93 | TransmitBuffer[TRANSMIT_REQ_ADDR64_MSB_POS + i++] = address.addr_0; |
Cheroukee | 2:a9bb12eefc08 | 94 | TransmitBuffer[TRANSMIT_REQ_ADDR64_MSB_POS + i++] = address.addr_1; |
Cheroukee | 2:a9bb12eefc08 | 95 | TransmitBuffer[TRANSMIT_REQ_ADDR64_MSB_POS + i++] = address.addr_2; |
Cheroukee | 2:a9bb12eefc08 | 96 | TransmitBuffer[TRANSMIT_REQ_ADDR64_MSB_POS + i++] = address.addr_3; |
Cheroukee | 2:a9bb12eefc08 | 97 | |
Cheroukee | 2:a9bb12eefc08 | 98 | TransmitBuffer[TRANSMIT_REQ_ADDR64_MSB_POS + i++] = address.addr_4; |
Cheroukee | 2:a9bb12eefc08 | 99 | TransmitBuffer[TRANSMIT_REQ_ADDR64_MSB_POS + i++] = address.addr_5; |
Cheroukee | 2:a9bb12eefc08 | 100 | TransmitBuffer[TRANSMIT_REQ_ADDR64_MSB_POS + i++] = address.addr_6; |
Cheroukee | 2:a9bb12eefc08 | 101 | TransmitBuffer[TRANSMIT_REQ_ADDR64_MSB_POS + i++] = address.addr_7; |
Cheroukee | 2:a9bb12eefc08 | 102 | } |
Cheroukee | 2:a9bb12eefc08 | 103 | |
Cheroukee | 2:a9bb12eefc08 | 104 | void set_16_addr(zigbee_addr_16_t address) |
Cheroukee | 2:a9bb12eefc08 | 105 | { |
Cheroukee | 2:a9bb12eefc08 | 106 | TransmitBuffer[TRANSMIT_REQ_ADDR16_MSB_POS] = address.addr_msb; |
Cheroukee | 2:a9bb12eefc08 | 107 | TransmitBuffer[TRANSMIT_REQ_ADDR16_MSB_POS + 1] = address.addr_lsb; |
Cheroukee | 2:a9bb12eefc08 | 108 | } |
Cheroukee | 2:a9bb12eefc08 | 109 | |
Cheroukee | 2:a9bb12eefc08 | 110 | void set_broadcast_radius(int position, char radius) |
Cheroukee | 2:a9bb12eefc08 | 111 | { |
Cheroukee | 2:a9bb12eefc08 | 112 | TransmitBuffer[position] = radius; |
Cheroukee | 2:a9bb12eefc08 | 113 | } |
Cheroukee | 2:a9bb12eefc08 | 114 | |
Cheroukee | 2:a9bb12eefc08 | 115 | void set_transmit_request_options(int position, char options) |
Cheroukee | 2:a9bb12eefc08 | 116 | { |
Cheroukee | 2:a9bb12eefc08 | 117 | TransmitBuffer[position] = options; |
Cheroukee | 2:a9bb12eefc08 | 118 | } |
Cheroukee | 2:a9bb12eefc08 | 119 | |
Cheroukee | 12:1286b80c68f7 | 120 | void set_transmit_data(int start_pos, char* data, int data_length) |
Cheroukee | 2:a9bb12eefc08 | 121 | { |
Cheroukee | 2:a9bb12eefc08 | 122 | for (int i = 0; i < data_length; i++) |
Cheroukee | 1:ea1b52d0a8a3 | 123 | { |
Cheroukee | 12:1286b80c68f7 | 124 | TransmitBuffer[start_pos + i] = data[i]; |
Cheroukee | 1:ea1b52d0a8a3 | 125 | } |
Cheroukee | 2:a9bb12eefc08 | 126 | } |
Cheroukee | 2:a9bb12eefc08 | 127 | |
Cheroukee | 2:a9bb12eefc08 | 128 | bool transmit_request_64(char* buffer, int data_length, char options, zigbee_addr_64_t destination) |
Cheroukee | 2:a9bb12eefc08 | 129 | { |
Cheroukee | 2:a9bb12eefc08 | 130 | build_api_frame_header(data_length + TRANSMIT_REQ_OVERHEAD_LENGTH); |
Cheroukee | 2:a9bb12eefc08 | 131 | |
Cheroukee | 2:a9bb12eefc08 | 132 | set_api_frame_type(TransmitRequest); |
Cheroukee | 2:a9bb12eefc08 | 133 | set_api_frame_id(0x01); |
Cheroukee | 2:a9bb12eefc08 | 134 | |
Cheroukee | 2:a9bb12eefc08 | 135 | set_64_addr(destination); |
Cheroukee | 2:a9bb12eefc08 | 136 | DECLARE_ADDR16_UNKNOWN_OR_BCAST |
Cheroukee | 2:a9bb12eefc08 | 137 | set_16_addr(USE_ADDR16_UNKNOWN_OR_BCAST); |
Cheroukee | 2:a9bb12eefc08 | 138 | |
Cheroukee | 2:a9bb12eefc08 | 139 | set_broadcast_radius(15, 0); |
Cheroukee | 2:a9bb12eefc08 | 140 | set_transmit_request_options(15, 0); |
Cheroukee | 2:a9bb12eefc08 | 141 | |
Cheroukee | 12:1286b80c68f7 | 142 | set_transmit_data(TRANSMIT_REQ_DATA_START, buffer, data_length); |
Cheroukee | 2:a9bb12eefc08 | 143 | |
Cheroukee | 2:a9bb12eefc08 | 144 | build_api_frame_checksum(data_length + TRANSMIT_REQ_OVERHEAD_LENGTH); |
Cheroukee | 2:a9bb12eefc08 | 145 | |
Cheroukee | 2:a9bb12eefc08 | 146 | transmit(data_length); |
Cheroukee | 1:ea1b52d0a8a3 | 147 | |
Cheroukee | 1:ea1b52d0a8a3 | 148 | return false; |
Cheroukee | 1:ea1b52d0a8a3 | 149 | } |
Cheroukee | 1:ea1b52d0a8a3 | 150 | |
Cheroukee | 2:a9bb12eefc08 | 151 | bool transmit_request_16(char* buffer, int data_length, char options, zigbee_addr_16_t destination) |
Cheroukee | 2:a9bb12eefc08 | 152 | { |
Cheroukee | 2:a9bb12eefc08 | 153 | build_api_frame_header(data_length + TRANSMIT_REQ_OVERHEAD_LENGTH); |
Cheroukee | 2:a9bb12eefc08 | 154 | |
Cheroukee | 2:a9bb12eefc08 | 155 | set_api_frame_type(TransmitRequest); |
Cheroukee | 2:a9bb12eefc08 | 156 | set_api_frame_id(0x01); |
Cheroukee | 2:a9bb12eefc08 | 157 | |
Cheroukee | 2:a9bb12eefc08 | 158 | DECLARE_ADDR64_BCAST |
Cheroukee | 2:a9bb12eefc08 | 159 | set_64_addr(USE_ADDR64_BCAST); |
Cheroukee | 2:a9bb12eefc08 | 160 | set_16_addr(destination); |
Cheroukee | 2:a9bb12eefc08 | 161 | |
Cheroukee | 2:a9bb12eefc08 | 162 | set_broadcast_radius(15, 0); |
Cheroukee | 2:a9bb12eefc08 | 163 | set_transmit_request_options(15, 0); |
Cheroukee | 2:a9bb12eefc08 | 164 | |
Cheroukee | 12:1286b80c68f7 | 165 | set_transmit_data(TRANSMIT_REQ_DATA_START, buffer, data_length); |
Cheroukee | 2:a9bb12eefc08 | 166 | |
Cheroukee | 2:a9bb12eefc08 | 167 | build_api_frame_checksum(data_length + TRANSMIT_REQ_OVERHEAD_LENGTH); |
Cheroukee | 2:a9bb12eefc08 | 168 | |
Cheroukee | 2:a9bb12eefc08 | 169 | transmit(data_length); |
Cheroukee | 2:a9bb12eefc08 | 170 | |
Cheroukee | 2:a9bb12eefc08 | 171 | return false; |
Cheroukee | 2:a9bb12eefc08 | 172 | } |
Cheroukee | 2:a9bb12eefc08 | 173 | |
Cheroukee | 2:a9bb12eefc08 | 174 | bool transmit_request(char* buffer, int data_length, char options, zigbee_addr_64_t destination64, zigbee_addr_16_t destination16) |
Cheroukee | 1:ea1b52d0a8a3 | 175 | { |
Cheroukee | 2:a9bb12eefc08 | 176 | build_api_frame_header(data_length + TRANSMIT_REQ_OVERHEAD_LENGTH); |
Cheroukee | 2:a9bb12eefc08 | 177 | |
Cheroukee | 2:a9bb12eefc08 | 178 | set_api_frame_type(TransmitRequest); |
Cheroukee | 2:a9bb12eefc08 | 179 | set_api_frame_id(0x01); |
Cheroukee | 2:a9bb12eefc08 | 180 | |
Cheroukee | 2:a9bb12eefc08 | 181 | set_64_addr(destination64); |
Cheroukee | 2:a9bb12eefc08 | 182 | set_16_addr(destination16); |
Cheroukee | 2:a9bb12eefc08 | 183 | |
Cheroukee | 2:a9bb12eefc08 | 184 | set_broadcast_radius(15, 0); |
Cheroukee | 2:a9bb12eefc08 | 185 | set_transmit_request_options(15, 0); |
Cheroukee | 2:a9bb12eefc08 | 186 | |
Cheroukee | 12:1286b80c68f7 | 187 | set_transmit_data(TRANSMIT_REQ_DATA_START, buffer, data_length); |
Cheroukee | 2:a9bb12eefc08 | 188 | |
Cheroukee | 2:a9bb12eefc08 | 189 | build_api_frame_checksum(data_length + TRANSMIT_REQ_OVERHEAD_LENGTH); |
Cheroukee | 2:a9bb12eefc08 | 190 | |
Cheroukee | 12:1286b80c68f7 | 191 | transmit(data_length + TRANSMIT_REQ_OVERHEAD_LENGTH); |
Cheroukee | 2:a9bb12eefc08 | 192 | |
Cheroukee | 2:a9bb12eefc08 | 193 | return false; |
Cheroukee | 2:a9bb12eefc08 | 194 | } |
Cheroukee | 2:a9bb12eefc08 | 195 | |
Cheroukee | 12:1286b80c68f7 | 196 | void remote_at_command_query(char msb, char lsb, char options) |
Cheroukee | 12:1286b80c68f7 | 197 | { |
Cheroukee | 12:1286b80c68f7 | 198 | char remote_command[2] = {msb, lsb}; |
Cheroukee | 12:1286b80c68f7 | 199 | |
Cheroukee | 12:1286b80c68f7 | 200 | build_api_frame_header(2 + REMOTE_AT_OVERHEAD_LENGTH); |
Cheroukee | 12:1286b80c68f7 | 201 | |
Cheroukee | 12:1286b80c68f7 | 202 | set_api_frame_type(RemoteCommandRequest); |
Cheroukee | 12:1286b80c68f7 | 203 | set_api_frame_id(0x01); |
Cheroukee | 12:1286b80c68f7 | 204 | |
Cheroukee | 12:1286b80c68f7 | 205 | DECLARE_ADDR16_UNKNOWN_OR_BCAST |
Cheroukee | 12:1286b80c68f7 | 206 | DECLARE_ADDR64_BCAST |
Cheroukee | 12:1286b80c68f7 | 207 | |
Cheroukee | 12:1286b80c68f7 | 208 | set_64_addr(USE_ADDR64_BCAST); |
Cheroukee | 12:1286b80c68f7 | 209 | set_16_addr(USE_ADDR16_UNKNOWN_OR_BCAST); |
Cheroukee | 12:1286b80c68f7 | 210 | |
Cheroukee | 12:1286b80c68f7 | 211 | // Set as apply |
Cheroukee | 12:1286b80c68f7 | 212 | set_transmit_request_options(15, options); |
Cheroukee | 12:1286b80c68f7 | 213 | |
Cheroukee | 12:1286b80c68f7 | 214 | set_transmit_data(16, remote_command, 2); |
Cheroukee | 12:1286b80c68f7 | 215 | |
Cheroukee | 12:1286b80c68f7 | 216 | build_api_frame_checksum(2 + REMOTE_AT_OVERHEAD_LENGTH); |
Cheroukee | 12:1286b80c68f7 | 217 | |
Cheroukee | 12:1286b80c68f7 | 218 | transmit(2 + REMOTE_AT_OVERHEAD_LENGTH); |
Cheroukee | 12:1286b80c68f7 | 219 | } |
Cheroukee | 12:1286b80c68f7 | 220 | |
Cheroukee | 12:1286b80c68f7 | 221 | void remote_at_command_set(char msb, char lsb, char parameter, char options) |
Cheroukee | 12:1286b80c68f7 | 222 | { |
Cheroukee | 12:1286b80c68f7 | 223 | char remote_command[3] = {msb, lsb, parameter}; |
Cheroukee | 12:1286b80c68f7 | 224 | |
Cheroukee | 12:1286b80c68f7 | 225 | build_api_frame_header(3 + REMOTE_AT_OVERHEAD_LENGTH); |
Cheroukee | 12:1286b80c68f7 | 226 | |
Cheroukee | 12:1286b80c68f7 | 227 | set_api_frame_type(RemoteCommandRequest); |
Cheroukee | 12:1286b80c68f7 | 228 | set_api_frame_id(0x01); |
Cheroukee | 12:1286b80c68f7 | 229 | |
Cheroukee | 12:1286b80c68f7 | 230 | DECLARE_ADDR16_UNKNOWN_OR_BCAST |
Cheroukee | 12:1286b80c68f7 | 231 | DECLARE_ADDR64_BCAST |
Cheroukee | 12:1286b80c68f7 | 232 | |
Cheroukee | 12:1286b80c68f7 | 233 | set_64_addr(USE_ADDR64_BCAST); |
Cheroukee | 12:1286b80c68f7 | 234 | set_16_addr(USE_ADDR16_UNKNOWN_OR_BCAST); |
Cheroukee | 12:1286b80c68f7 | 235 | |
Cheroukee | 12:1286b80c68f7 | 236 | // Set as apply |
Cheroukee | 12:1286b80c68f7 | 237 | set_transmit_request_options(15, options); |
Cheroukee | 12:1286b80c68f7 | 238 | |
Cheroukee | 12:1286b80c68f7 | 239 | set_transmit_data(16, remote_command, 3); |
Cheroukee | 12:1286b80c68f7 | 240 | |
Cheroukee | 12:1286b80c68f7 | 241 | build_api_frame_checksum(3 + REMOTE_AT_OVERHEAD_LENGTH); |
Cheroukee | 12:1286b80c68f7 | 242 | |
Cheroukee | 12:1286b80c68f7 | 243 | transmit(3 + REMOTE_AT_OVERHEAD_LENGTH); |
Cheroukee | 12:1286b80c68f7 | 244 | } |
Cheroukee | 12:1286b80c68f7 | 245 | |
Cheroukee | 14:cd488eba8bba | 246 | |
Cheroukee | 14:cd488eba8bba | 247 | void at_command_query(char msb, char lsb) |
Cheroukee | 14:cd488eba8bba | 248 | { |
Cheroukee | 14:cd488eba8bba | 249 | char command[2] = {msb, lsb}; |
Cheroukee | 14:cd488eba8bba | 250 | |
Cheroukee | 14:cd488eba8bba | 251 | build_api_frame_header(2 + REMOTE_AT_OVERHEAD_LENGTH); |
Cheroukee | 14:cd488eba8bba | 252 | |
Cheroukee | 14:cd488eba8bba | 253 | set_api_frame_type(ATCommand); |
Cheroukee | 14:cd488eba8bba | 254 | set_api_frame_id(0x01); |
Cheroukee | 14:cd488eba8bba | 255 | |
Cheroukee | 14:cd488eba8bba | 256 | set_transmit_data(7, command, 2); |
Cheroukee | 14:cd488eba8bba | 257 | |
Cheroukee | 14:cd488eba8bba | 258 | build_api_frame_checksum(2 + REMOTE_AT_OVERHEAD_LENGTH); |
Cheroukee | 14:cd488eba8bba | 259 | |
Cheroukee | 14:cd488eba8bba | 260 | transmit(2 + REMOTE_AT_OVERHEAD_LENGTH); |
Cheroukee | 14:cd488eba8bba | 261 | } |
Cheroukee | 14:cd488eba8bba | 262 | |
Cheroukee | 14:cd488eba8bba | 263 | void at_command_set(char msb, char lsb, char* parameter, int parameter_length) |
Cheroukee | 14:cd488eba8bba | 264 | { |
Cheroukee | 14:cd488eba8bba | 265 | char command[2] = {msb, lsb}; |
Cheroukee | 14:cd488eba8bba | 266 | |
Cheroukee | 14:cd488eba8bba | 267 | build_api_frame_header(parameter_length + AT_COMMAND_OVERHEAD_LENGTH); |
Cheroukee | 14:cd488eba8bba | 268 | |
Cheroukee | 14:cd488eba8bba | 269 | set_api_frame_type(ATCommand); |
Cheroukee | 14:cd488eba8bba | 270 | set_api_frame_id(0x01); |
Cheroukee | 14:cd488eba8bba | 271 | |
Cheroukee | 14:cd488eba8bba | 272 | set_transmit_data(5, command, 2); |
Cheroukee | 14:cd488eba8bba | 273 | set_transmit_data(7, parameter, parameter_length); |
Cheroukee | 14:cd488eba8bba | 274 | |
Cheroukee | 14:cd488eba8bba | 275 | build_api_frame_checksum(parameter_length + AT_COMMAND_OVERHEAD_LENGTH); |
Cheroukee | 14:cd488eba8bba | 276 | |
Cheroukee | 14:cd488eba8bba | 277 | transmit(parameter_length + AT_COMMAND_OVERHEAD_LENGTH); |
Cheroukee | 14:cd488eba8bba | 278 | } |
Cheroukee | 14:cd488eba8bba | 279 | |
Cheroukee | 2:a9bb12eefc08 | 280 | void transmit(int packet_length) |
Cheroukee | 2:a9bb12eefc08 | 281 | { |
Cheroukee | 12:1286b80c68f7 | 282 | for (int i = 0; i < packet_length + 4; i++) |
Cheroukee | 2:a9bb12eefc08 | 283 | { |
Cheroukee | 2:a9bb12eefc08 | 284 | xbee.putc(TransmitBuffer[i]); |
Cheroukee | 2:a9bb12eefc08 | 285 | } |
Cheroukee | 5:9e6a09a38785 | 286 | xbee_transmit_led = !xbee_transmit_led; |
Cheroukee | 5:9e6a09a38785 | 287 | } |
Cheroukee | 5:9e6a09a38785 | 288 | |
Cheroukee | 8:5955af1ee445 | 289 | bool receive(frame_t* out_frame, int max_length) |
Cheroukee | 5:9e6a09a38785 | 290 | { |
Cheroukee | 17:8abdbfa6019c | 291 | |
Cheroukee | 17:8abdbfa6019c | 292 | //NVIC_DisableIRQ(UART1_IRQn); |
Cheroukee | 17:8abdbfa6019c | 293 | /* |
Cheroukee | 17:8abdbfa6019c | 294 | static int curr_length = 0; |
Cheroukee | 17:8abdbfa6019c | 295 | static frame_recv_state_t recv_state = wait_delimiter; |
Cheroukee | 17:8abdbfa6019c | 296 | static char checksum = 0xFF; |
Cheroukee | 17:8abdbfa6019c | 297 | |
Cheroukee | 17:8abdbfa6019c | 298 | bool finished_frame = false; |
Cheroukee | 17:8abdbfa6019c | 299 | |
Cheroukee | 17:8abdbfa6019c | 300 | while(rx_out != rx_in && !finished_frame) |
Cheroukee | 5:9e6a09a38785 | 301 | { |
Cheroukee | 17:8abdbfa6019c | 302 | char current = ReceiveBuffer[rx_out]; |
Cheroukee | 17:8abdbfa6019c | 303 | switch(recv_state) |
Cheroukee | 17:8abdbfa6019c | 304 | { |
Cheroukee | 17:8abdbfa6019c | 305 | case wait_delimiter: |
Cheroukee | 17:8abdbfa6019c | 306 | { |
Cheroukee | 17:8abdbfa6019c | 307 | if (current == ZIGBEE_DELIMITER) |
Cheroukee | 17:8abdbfa6019c | 308 | { |
Cheroukee | 17:8abdbfa6019c | 309 | curr_length = 0; |
Cheroukee | 17:8abdbfa6019c | 310 | recv_state = read_length_msb; |
Cheroukee | 17:8abdbfa6019c | 311 | out_frame->length = 0; |
Cheroukee | 17:8abdbfa6019c | 312 | } |
Cheroukee | 17:8abdbfa6019c | 313 | break; |
Cheroukee | 17:8abdbfa6019c | 314 | } |
Cheroukee | 17:8abdbfa6019c | 315 | case read_length_msb: |
Cheroukee | 17:8abdbfa6019c | 316 | { |
Cheroukee | 17:8abdbfa6019c | 317 | out_frame->length = (current << 8); |
Cheroukee | 17:8abdbfa6019c | 318 | recv_state = read_length_lsb; |
Cheroukee | 17:8abdbfa6019c | 319 | break; |
Cheroukee | 17:8abdbfa6019c | 320 | } |
Cheroukee | 17:8abdbfa6019c | 321 | case read_length_lsb: |
Cheroukee | 17:8abdbfa6019c | 322 | { |
Cheroukee | 17:8abdbfa6019c | 323 | out_frame->length |= current; |
Cheroukee | 17:8abdbfa6019c | 324 | //pc.printf("\n\rFrame length = %u", out_frame->length); |
Cheroukee | 17:8abdbfa6019c | 325 | checksum = 0xFF; |
Cheroukee | 17:8abdbfa6019c | 326 | recv_state = read_frame_specific; |
Cheroukee | 17:8abdbfa6019c | 327 | break; |
Cheroukee | 17:8abdbfa6019c | 328 | } |
Cheroukee | 17:8abdbfa6019c | 329 | case read_frame_specific: |
Cheroukee | 17:8abdbfa6019c | 330 | { |
Cheroukee | 17:8abdbfa6019c | 331 | //pc.printf(":: read_frame_specific x%x", current); |
Cheroukee | 17:8abdbfa6019c | 332 | out_frame->buffer[curr_length++] = current; |
Cheroukee | 17:8abdbfa6019c | 333 | checksum -= current; |
Cheroukee | 17:8abdbfa6019c | 334 | if (curr_length >= out_frame->length) |
Cheroukee | 17:8abdbfa6019c | 335 | { |
Cheroukee | 17:8abdbfa6019c | 336 | recv_state = read_checksum; |
Cheroukee | 17:8abdbfa6019c | 337 | } |
Cheroukee | 17:8abdbfa6019c | 338 | break; |
Cheroukee | 17:8abdbfa6019c | 339 | } |
Cheroukee | 17:8abdbfa6019c | 340 | case read_checksum: |
Cheroukee | 17:8abdbfa6019c | 341 | { |
Cheroukee | 17:8abdbfa6019c | 342 | // pc.printf(":: read_checksum x%x", current); |
Cheroukee | 17:8abdbfa6019c | 343 | recv_state = wait_delimiter; |
Cheroukee | 17:8abdbfa6019c | 344 | if (checksum == current) |
Cheroukee | 17:8abdbfa6019c | 345 | { |
Cheroukee | 17:8abdbfa6019c | 346 | finished_frame = true; |
Cheroukee | 17:8abdbfa6019c | 347 | } |
Cheroukee | 17:8abdbfa6019c | 348 | break; |
Cheroukee | 17:8abdbfa6019c | 349 | } |
Cheroukee | 17:8abdbfa6019c | 350 | } |
Cheroukee | 17:8abdbfa6019c | 351 | rx_out = (rx_out + 1) % BUFFER_SIZE; |
Cheroukee | 17:8abdbfa6019c | 352 | } |
Cheroukee | 17:8abdbfa6019c | 353 | |
Cheroukee | 17:8abdbfa6019c | 354 | NVIC_EnableIRQ(UART1_IRQn); |
Cheroukee | 17:8abdbfa6019c | 355 | |
Cheroukee | 17:8abdbfa6019c | 356 | return finished_frame; */ |
Cheroukee | 17:8abdbfa6019c | 357 | if (xbee.readable()) |
Cheroukee | 17:8abdbfa6019c | 358 | { |
Cheroukee | 15:c4d17caf0709 | 359 | static int curr_length = 0; |
Cheroukee | 15:c4d17caf0709 | 360 | |
Cheroukee | 15:c4d17caf0709 | 361 | frame_recv_state_t recv_state = wait_delimiter; |
Cheroukee | 15:c4d17caf0709 | 362 | frame_t* frame = out_frame; |
Cheroukee | 15:c4d17caf0709 | 363 | static char checksum = 0xFF; |
Cheroukee | 15:c4d17caf0709 | 364 | |
Cheroukee | 15:c4d17caf0709 | 365 | bool finished_frame = false; |
Cheroukee | 15:c4d17caf0709 | 366 | |
Cheroukee | 15:c4d17caf0709 | 367 | xbee_receive_led = !xbee_receive_led; |
Cheroukee | 15:c4d17caf0709 | 368 | while(curr_length < max_length && !finished_frame) |
Cheroukee | 8:5955af1ee445 | 369 | { |
Cheroukee | 15:c4d17caf0709 | 370 | char current = xbee.getc(); |
Cheroukee | 15:c4d17caf0709 | 371 | switch(recv_state) |
Cheroukee | 8:5955af1ee445 | 372 | { |
Cheroukee | 15:c4d17caf0709 | 373 | case wait_delimiter: |
Cheroukee | 8:5955af1ee445 | 374 | { |
Cheroukee | 15:c4d17caf0709 | 375 | //pc.printf(":: delimiter x%x", current); |
Cheroukee | 15:c4d17caf0709 | 376 | if (current == ZIGBEE_DELIMITER) |
Cheroukee | 15:c4d17caf0709 | 377 | { |
Cheroukee | 15:c4d17caf0709 | 378 | curr_length = 0; |
Cheroukee | 15:c4d17caf0709 | 379 | recv_state = read_length_msb; |
Cheroukee | 15:c4d17caf0709 | 380 | frame->length = 0; |
Cheroukee | 15:c4d17caf0709 | 381 | } |
Cheroukee | 15:c4d17caf0709 | 382 | break; |
Cheroukee | 15:c4d17caf0709 | 383 | } |
Cheroukee | 15:c4d17caf0709 | 384 | case read_length_msb: |
Cheroukee | 15:c4d17caf0709 | 385 | { |
Cheroukee | 15:c4d17caf0709 | 386 | frame->length = (current << 8); |
Cheroukee | 15:c4d17caf0709 | 387 | recv_state = read_length_lsb; |
Cheroukee | 15:c4d17caf0709 | 388 | break; |
Cheroukee | 15:c4d17caf0709 | 389 | } |
Cheroukee | 15:c4d17caf0709 | 390 | case read_length_lsb: |
Cheroukee | 15:c4d17caf0709 | 391 | { |
Cheroukee | 15:c4d17caf0709 | 392 | frame->length |= current; |
Cheroukee | 15:c4d17caf0709 | 393 | //pc.printf("\n\rFrame length = %u", frame->length); |
Cheroukee | 15:c4d17caf0709 | 394 | checksum = 0xFF; |
Cheroukee | 15:c4d17caf0709 | 395 | recv_state = read_frame_specific; |
Cheroukee | 15:c4d17caf0709 | 396 | break; |
Cheroukee | 8:5955af1ee445 | 397 | } |
Cheroukee | 15:c4d17caf0709 | 398 | case read_frame_specific: |
Cheroukee | 8:5955af1ee445 | 399 | { |
Cheroukee | 15:c4d17caf0709 | 400 | //pc.printf(":: read_frame_specific x%x", current); |
Cheroukee | 15:c4d17caf0709 | 401 | frame->buffer[curr_length++] = current; |
Cheroukee | 15:c4d17caf0709 | 402 | checksum -= current; |
Cheroukee | 15:c4d17caf0709 | 403 | if (curr_length >= frame->length) |
Cheroukee | 15:c4d17caf0709 | 404 | { |
Cheroukee | 15:c4d17caf0709 | 405 | recv_state = read_checksum; |
Cheroukee | 15:c4d17caf0709 | 406 | } |
Cheroukee | 15:c4d17caf0709 | 407 | break; |
Cheroukee | 8:5955af1ee445 | 408 | } |
Cheroukee | 15:c4d17caf0709 | 409 | case read_checksum: |
Cheroukee | 15:c4d17caf0709 | 410 | { |
Cheroukee | 15:c4d17caf0709 | 411 | // pc.printf(":: read_checksum x%x", current); |
Cheroukee | 15:c4d17caf0709 | 412 | recv_state = wait_delimiter; |
Cheroukee | 15:c4d17caf0709 | 413 | if (checksum == current) |
Cheroukee | 15:c4d17caf0709 | 414 | { |
Cheroukee | 15:c4d17caf0709 | 415 | finished_frame = true; |
Cheroukee | 15:c4d17caf0709 | 416 | } |
Cheroukee | 15:c4d17caf0709 | 417 | break; |
Cheroukee | 15:c4d17caf0709 | 418 | } |
Cheroukee | 15:c4d17caf0709 | 419 | } |
Cheroukee | 15:c4d17caf0709 | 420 | } |
Cheroukee | 15:c4d17caf0709 | 421 | return finished_frame; |
Cheroukee | 8:5955af1ee445 | 422 | } |
Cheroukee | 15:c4d17caf0709 | 423 | return false; |
Cheroukee | 5:9e6a09a38785 | 424 | } |