pradeep shekhar / Mbed 2 deprecated Beacon_BAE_intergration_test_3

General testings

Dependencies:   mbed

Fork of BEACON_CODE_NEW by Mohamed Azad

BCN.cpp@33:27c84141086d, 2016-05-18 (annotated)

Committer:
shekhar
Date:
Wed May 18 18:49:26 2016 +0000
Revision:
33:27c84141086d
Parent:
32:e5d6c0cffa82 
added fifoaf check

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shekhar 24:3d8e70286f67 1 #include "BCN.h"
shekhar 30:ca96cddf25d0 2 #include <stdio.h>
shekhar 30:ca96cddf25d0 3 #include "pin_config.h"
shekhar 23:afadd6b988a2 4 //Check the pin names
shekhar 23:afadd6b988a2 5 //Takes max 4.3 sec in void FCTN_BCN_TX_MAIN() (temp.calc. + long_beacon + short_beacon)
shekhar 23:afadd6b988a2 6
shekhar 30:ca96cddf25d0 7 Serial pc_bcn(USBTX, USBRX); //tx,rx
azaddevarm 32:e5d6c0cffa82 8 SPI spi(D11, D12, D13); // mosi, miso, sclk
azaddevarm 32:e5d6c0cffa82 9 DigitalOut cs(D10); //slave select or chip select
azaddevarm 32:e5d6c0cffa82 10 //SPI spi(PIN16, PIN17, PIN15); // mosi, miso, sclk
azaddevarm 32:e5d6c0cffa82 11 //DigitalOut cs(PIN6); //slave select or chip select
shekhar 30:ca96cddf25d0 12 Timer t_i;//timer for checking the time taken by (temp.calc. + long_beacon + short_beacon)
azaddevarm 32:e5d6c0cffa82 13 //Timer t_is;//timer for short_beacon
azaddevarm 32:e5d6c0cffa82 14 //Timer t_il;//timer for long_beacon
shekhar 30:ca96cddf25d0 15 Timeout rf_sl_timeout;//RF_silence timer
shekhar 30:ca96cddf25d0 16 Ticker loop;//for transmitting every 10 secs
shekhar 23:afadd6b988a2 17
shekhar 23:afadd6b988a2 18 //GLOBAL VARIABLES
shekhar 23:afadd6b988a2 19 uint8_t BCN_INIT_STATUS = 0;
shekhar 23:afadd6b988a2 20 uint8_t BCN_TX_MAIN_STATUS = 0;
shekhar 23:afadd6b988a2 21 uint8_t BCN_TX_STATUS = 0;
shekhar 23:afadd6b988a2 22 uint8_t BCN_TX_EN = 1; //hardcoding for now //check where is this variable toggled??
shekhar 25:6863457ea3d1 23 uint8_t BCN_FEN = 0; //hardcoding for now //write this value to flash
shekhar 23:afadd6b988a2 24 uint8_t BCN_STANDBY = 0; //hardcoding for now //check where is this variable toggled??
shekhar 31:90cdfbadea91 25 uint8_t BCN_TS_BUFFER = 0; // For Temperature
shekhar 31:90cdfbadea91 26 uint8_t ERROR_CHECK = 0;
shekhar 31:90cdfbadea91 27 uint8_t BCN_FAIL_COUNT = 0; //Flag for keeping count of no. of times of BCN failure in init or one transmission in 30 secs (failure in spi communication)
shekhar 31:90cdfbadea91 28 //This Flag when exceeds a threshold, uC should reset.
shekhar 23:afadd6b988a2 29 void FCTN_BCN_INIT()
shekhar 23:afadd6b988a2 30 {
shekhar 30:ca96cddf25d0 31 pc_bcn.printf("FCTN_BCN_INIT\n");
shekhar 30:ca96cddf25d0 32 Init_BEACON_HW();
shekhar 23:afadd6b988a2 33 BCN_INIT_STATUS = 1;
shekhar 30:ca96cddf25d0 34 if(BCN_FEN == 0)//BCN_FEN is in flash
shekhar 30:ca96cddf25d0 35 rf_sl_timeout.attach(&FCTN_BCN_FEN, RF_SILENCE_TIME);
shekhar 23:afadd6b988a2 36 BCN_INIT_STATUS = 0;
shekhar 23:afadd6b988a2 37 }
shekhar 23:afadd6b988a2 38 void FCTN_BCN_FEN()
shekhar 23:afadd6b988a2 39 {
shekhar 30:ca96cddf25d0 40 pc_bcn.printf("FCTN_FEN\n");
shekhar 23:afadd6b988a2 41 BCN_FEN = 1;//write this value to flash
shekhar 23:afadd6b988a2 42 }
shekhar 23:afadd6b988a2 43 void FCTN_BCN_TX_MAIN()
shekhar 23:afadd6b988a2 44 {
shekhar 31:90cdfbadea91 45 ERROR_CHECK=0;
shekhar 30:ca96cddf25d0 46 pc_bcn.printf("FCTN_BCN_TX_MAIN\n");
shekhar 23:afadd6b988a2 47 t_i.start();
shekhar 23:afadd6b988a2 48 int begin = t_i.read_us();
azaddevarm 32:e5d6c0cffa82 49 int begins,beginl,ends,endl;
shekhar 23:afadd6b988a2 50 BCN_TX_MAIN_STATUS = 1;
shekhar 23:afadd6b988a2 51
shekhar 23:afadd6b988a2 52 if(BCN_FEN == 1)
shekhar 23:afadd6b988a2 53 {
shekhar 23:afadd6b988a2 54 if(BCN_TX_EN == 1)
shekhar 23:afadd6b988a2 55 {
shekhar 23:afadd6b988a2 56 //Measure and store BCN temperature in BCN_TS_BUFFER
shekhar 23:afadd6b988a2 57 BCN_TS_BUFFER = check_Temperature();
shekhar 30:ca96cddf25d0 58 pc_bcn.printf("\n\ntemperature = %d\n\n",BCN_TS_BUFFER);
shekhar 23:afadd6b988a2 59 //Get BCN_HK data from BCN HW(SPI) //Store BCN_HK data in BCN_HK_BUFFER
shekhar 23:afadd6b988a2 60 if(BCN_STANDBY == 1 )
shekhar 23:afadd6b988a2 61 {
shekhar 23:afadd6b988a2 62 Set_BCN_TX_STATUS(BCN_TX_STANDBY);
shekhar 23:afadd6b988a2 63 BCN_TX_MAIN_STATUS = 0;
shekhar 23:afadd6b988a2 64
shekhar 23:afadd6b988a2 65 // break;
shekhar 23:afadd6b988a2 66 }
shekhar 23:afadd6b988a2 67 else
shekhar 23:afadd6b988a2 68 {
shekhar 23:afadd6b988a2 69 //transmit short beacon and long beacon
azaddevarm 32:e5d6c0cffa82 70 //t_is.start();
azaddevarm 32:e5d6c0cffa82 71 begins = t_i.read_us();
shekhar 23:afadd6b988a2 72 SHORT_BCN_TX();
azaddevarm 32:e5d6c0cffa82 73 //t_is.stop();
azaddevarm 32:e5d6c0cffa82 74 ends = t_i.read_us();
azaddevarm 32:e5d6c0cffa82 75
azaddevarm 32:e5d6c0cffa82 76 //t_il.start();
azaddevarm 32:e5d6c0cffa82 77 beginl = t_i.read_us();
shekhar 29:a864d57f10c4 78 LONG_BCN_TX();
azaddevarm 32:e5d6c0cffa82 79 //t_il.stop();
azaddevarm 32:e5d6c0cffa82 80 endl = t_i.read_us();
shekhar 23:afadd6b988a2 81
shekhar 23:afadd6b988a2 82 if(Check_ACK_RECEIVED() == 1)
shekhar 23:afadd6b988a2 83 {
shekhar 23:afadd6b988a2 84 Set_BCN_TX_STATUS(BCN_TX_SUCCESS);
shekhar 23:afadd6b988a2 85 BCN_TX_MAIN_STATUS = 0;
shekhar 23:afadd6b988a2 86 }
shekhar 23:afadd6b988a2 87 else
shekhar 23:afadd6b988a2 88 {
shekhar 23:afadd6b988a2 89 Set_BCN_TX_STATUS(BCN_TX_FAILURE);
shekhar 23:afadd6b988a2 90 BCN_TX_MAIN_STATUS = 0;
shekhar 23:afadd6b988a2 91
shekhar 23:afadd6b988a2 92 }
shekhar 23:afadd6b988a2 93 }
shekhar 23:afadd6b988a2 94 }
shekhar 23:afadd6b988a2 95 else
shekhar 23:afadd6b988a2 96 {
shekhar 23:afadd6b988a2 97 Set_BCN_TX_STATUS(BCN_TX_DISABLED);
shekhar 23:afadd6b988a2 98 BCN_TX_MAIN_STATUS = 0;
shekhar 23:afadd6b988a2 99 }
shekhar 23:afadd6b988a2 100 }
shekhar 23:afadd6b988a2 101 else
shekhar 23:afadd6b988a2 102 {
shekhar 23:afadd6b988a2 103 Set_BCN_TX_STATUS(BCN_RF_SILENCE); //Window of RF Silence: None of the Txs should be on.
shekhar 23:afadd6b988a2 104 BCN_TX_MAIN_STATUS = 0;
shekhar 23:afadd6b988a2 105 }
shekhar 23:afadd6b988a2 106 t_i.stop();
shekhar 23:afadd6b988a2 107 int end = t_i.read_us();
shekhar 30:ca96cddf25d0 108 pc_bcn.printf("The time required for FCTN_BCN_TX_MAIN is %d useconds\r\n", end-begin);
azaddevarm 32:e5d6c0cffa82 109 pc_bcn.printf("The time required for Short_BCN is %d useconds\r\n", ends-begins);
azaddevarm 32:e5d6c0cffa82 110 pc_bcn.printf("The time required for Long_BCN is %d useconds\r\n", endl-beginl);
shekhar 31:90cdfbadea91 111 ERROR_CHECK = 0;
shekhar 23:afadd6b988a2 112
shekhar 23:afadd6b988a2 113 }
shekhar 23:afadd6b988a2 114
shekhar 23:afadd6b988a2 115 void Set_BCN_TX_STATUS(uint8_t STATUS)
shekhar 23:afadd6b988a2 116 {
shekhar 23:afadd6b988a2 117 BCN_TX_STATUS = STATUS;
shekhar 23:afadd6b988a2 118 }
shekhar 23:afadd6b988a2 119
shekhar 23:afadd6b988a2 120 uint8_t check_Temperature()
shekhar 23:afadd6b988a2 121 {
shekhar 23:afadd6b988a2 122 uint8_t temperature;
shekhar 30:ca96cddf25d0 123 writereg(RF22_REG_0F_ADC_CONFIGURATION,0x00);//set ADC to temp measurement
shekhar 30:ca96cddf25d0 124 writereg(RF22_REG_12_Temperature_Sensor_Calibration,0x20);//measure in degree celsius
shekhar 30:ca96cddf25d0 125 writereg(RF22_REG_0F_ADC_CONFIGURATION,0x80);//start adc
shekhar 23:afadd6b988a2 126 wait(0.1);
shekhar 23:afadd6b988a2 127 temperature = readreg(RF22_REG_11_ADC_Value);
shekhar 23:afadd6b988a2 128 temperature = (float)temperature*0.5 - 64;
shekhar 23:afadd6b988a2 129 return temperature;
shekhar 23:afadd6b988a2 130 }
shekhar 23:afadd6b988a2 131
shekhar 23:afadd6b988a2 132 void SHORT_BCN_TX()
shekhar 23:afadd6b988a2 133 {
azaddevarm 32:e5d6c0cffa82 134 /*
shekhar 23:afadd6b988a2 135 writereg(RF22_REG_6E_TX_DATA_RATE,0x01);
shekhar 26:89b6bb0859a1 136 writereg(RF22_REG_6F_TX_DATA_RATE,0x50);//160bps
azaddevarm 32:e5d6c0cffa82 137 */
azaddevarm 32:e5d6c0cffa82 138 writereg(RF22_REG_6E_TX_DATA_RATE,0x0A);
azaddevarm 32:e5d6c0cffa82 139 writereg(RF22_REG_6F_TX_DATA_RATE,0x7D);//1280bps
azaddevarm 32:e5d6c0cffa82 140
shekhar 23:afadd6b988a2 141 writereg(RF22_REG_3E_PACKET_LENGTH,SHORT_TX_DATA); //short packet length
shekhar 23:afadd6b988a2 142 wait(0.02);
shekhar 23:afadd6b988a2 143
shekhar 23:afadd6b988a2 144 uint32_t timeout_count = 10e5;
shekhar 23:afadd6b988a2 145 //extract values from short_beacon[]
shekhar 23:afadd6b988a2 146
shekhar 23:afadd6b988a2 147 struct Short_beacon
shekhar 23:afadd6b988a2 148 {
shekhar 23:afadd6b988a2 149 uint8_t Voltage[1];
shekhar 23:afadd6b988a2 150 uint8_t AngularSpeed[2];
shekhar 23:afadd6b988a2 151 uint8_t SubsystemStatus[1];
shekhar 23:afadd6b988a2 152 uint8_t Temp[3];
shekhar 23:afadd6b988a2 153 uint8_t ErrorFlag[1];
shekhar 23:afadd6b988a2 154 }Shortbeacon = { {0x88}, {0x99, 0xAA} , {0xAA},{0xAA,0xDD,0xEE}, {0x00} };
shekhar 23:afadd6b988a2 155
shekhar 23:afadd6b988a2 156 //filling hk data
shekhar 23:afadd6b988a2 157 //uint8_t short_beacon[] = { 0xAB, 0x8A, 0xE2, 0xBB, 0xB8, 0xA2, 0x8E,Shortbeacon.Voltage[0],Shortbeacon.AngularSpeed[0], Shortbeacon.AngularSpeed[1],Shortbeacon.SubsystemStatus[0],Shortbeacon.Temp[0],Shortbeacon.Temp[1],Shortbeacon.Temp[2],Shortbeacon.ErrorFlag[0]};
shekhar 23:afadd6b988a2 158 uint8_t short_beacon[] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,Shortbeacon.Voltage[0],Shortbeacon.AngularSpeed[0], Shortbeacon.AngularSpeed[1],Shortbeacon.SubsystemStatus[0],Shortbeacon.Temp[0],Shortbeacon.Temp[1],Shortbeacon.Temp[2],Shortbeacon.ErrorFlag[0]};
shekhar 23:afadd6b988a2 159
shekhar 23:afadd6b988a2 160 //writereg(RF22_REG_07_OPERATING_MODE1,0x01); //ready mode ??
azaddevarm 32:e5d6c0cffa82 161 clearTxBuf(); //writing data first time
azaddevarm 32:e5d6c0cffa82 162
azaddevarm 32:e5d6c0cffa82 163 int byte = 0,byte_count=0;
azaddevarm 32:e5d6c0cffa82 164 //int spi_start,spi_end,spi_total=0;
shekhar 23:afadd6b988a2 165 for (int byte_counter = 0; byte_counter <15 ; byte_counter++)
shekhar 23:afadd6b988a2 166 {
azaddevarm 32:e5d6c0cffa82 167 //pc_bcn.printf("byte-counter=%d\r\n", byte_counter);
azaddevarm 32:e5d6c0cffa82 168 /*
shekhar 23:afadd6b988a2 169 for(int j = 3; j >= 0 ; j--)
shekhar 23:afadd6b988a2 170 {
shekhar 23:afadd6b988a2 171 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,(j*2+1)))!= pow(2.0,(j*2+1)))
shekhar 23:afadd6b988a2 172 {
shekhar 23:afadd6b988a2 173 byte=0x00;
shekhar 23:afadd6b988a2 174 }
shekhar 23:afadd6b988a2 175 else
shekhar 23:afadd6b988a2 176 {
shekhar 23:afadd6b988a2 177 byte=0xF0;
shekhar 23:afadd6b988a2 178 }
shekhar 23:afadd6b988a2 179 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,j*2))!= pow(2.0,j*2))
shekhar 23:afadd6b988a2 180 {
shekhar 23:afadd6b988a2 181 byte=byte | 0x00;
shekhar 23:afadd6b988a2 182 }
shekhar 23:afadd6b988a2 183 else
shekhar 23:afadd6b988a2 184 {
shekhar 23:afadd6b988a2 185 byte=byte | 0x0F;
shekhar 23:afadd6b988a2 186 }
azaddevarm 32:e5d6c0cffa82 187 cs = 0;
azaddevarm 32:e5d6c0cffa82 188 spi.write(0xFF);
shekhar 23:afadd6b988a2 189 spi.write(byte);
azaddevarm 32:e5d6c0cffa82 190 cs = 1;
shekhar 23:afadd6b988a2 191 }
azaddevarm 32:e5d6c0cffa82 192 */
azaddevarm 32:e5d6c0cffa82 193 for(int j = 7; j >= 0 ; j--)
azaddevarm 32:e5d6c0cffa82 194 {
azaddevarm 32:e5d6c0cffa82 195 //spi_start = t_i.read_us();
azaddevarm 32:e5d6c0cffa82 196 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,j))!= pow(2.0,j))
azaddevarm 32:e5d6c0cffa82 197 {
azaddevarm 32:e5d6c0cffa82 198 byte=0x00;
azaddevarm 32:e5d6c0cffa82 199 }
azaddevarm 32:e5d6c0cffa82 200 else
azaddevarm 32:e5d6c0cffa82 201 {
azaddevarm 32:e5d6c0cffa82 202 byte=0xFF;
azaddevarm 32:e5d6c0cffa82 203 }
azaddevarm 32:e5d6c0cffa82 204
azaddevarm 32:e5d6c0cffa82 205 cs = 0;
azaddevarm 32:e5d6c0cffa82 206 spi.write(0xFF);
azaddevarm 32:e5d6c0cffa82 207 spi.write(byte);
azaddevarm 32:e5d6c0cffa82 208 spi.write(byte);
azaddevarm 32:e5d6c0cffa82 209 spi.write(byte);
azaddevarm 32:e5d6c0cffa82 210 spi.write(byte); //Each bit is written 32 times
azaddevarm 32:e5d6c0cffa82 211 byte_count+=4;
azaddevarm 32:e5d6c0cffa82 212 cs = 1;
azaddevarm 32:e5d6c0cffa82 213
azaddevarm 32:e5d6c0cffa82 214 //spi_end = t_i.read_us();
azaddevarm 32:e5d6c0cffa82 215 //spi_total += spi_end-spi_start;
azaddevarm 32:e5d6c0cffa82 216 //pc_bcn.printf("Time taken to write one byte = %d\r\n",spi_end-spi_start);
azaddevarm 32:e5d6c0cffa82 217 }
azaddevarm 32:e5d6c0cffa82 218
shekhar 33:27c84141086d 219 if(byte_counter == 1)
azaddevarm 32:e5d6c0cffa82 220 {
azaddevarm 32:e5d6c0cffa82 221
azaddevarm 32:e5d6c0cffa82 222 //Set to Tx mode
azaddevarm 32:e5d6c0cffa82 223 writereg(RF22_REG_07_OPERATING_MODE1,0x08); //txon
azaddevarm 32:e5d6c0cffa82 224 wait(0.1);// takes time to set to tx mode hence the delay of 0.1.
shekhar 33:27c84141086d 225
azaddevarm 32:e5d6c0cffa82 226 }
azaddevarm 32:e5d6c0cffa82 227
shekhar 33:27c84141086d 228 //Check for fifoThresh
shekhar 33:27c84141086d 229 if(!byte_counter)
shekhar 33:27c84141086d 230 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1)
shekhar 33:27c84141086d 231 {
shekhar 33:27c84141086d 232 pc_bcn.printf("Reset\n");
shekhar 33:27c84141086d 233 reset_rfm(1);
shekhar 33:27c84141086d 234 }
shekhar 33:27c84141086d 235 timeout_count=10e5;
shekhar 33:27c84141086d 236
shekhar 23:afadd6b988a2 237 }
shekhar 30:ca96cddf25d0 238
shekhar 23:afadd6b988a2 239 //Check for fifoThresh
shekhar 33:27c84141086d 240 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x40) == 0x00)break;else
azaddevarm 32:e5d6c0cffa82 241 {
shekhar 33:27c84141086d 242 pc_bcn.printf("Waiting for fifo to empty\n");}
shekhar 23:afadd6b988a2 243
azaddevarm 32:e5d6c0cffa82 244 //Check for packetsent interrupt
shekhar 31:90cdfbadea91 245 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;else if(timeout_count == 1) reset_rfm(1);
shekhar 23:afadd6b988a2 246
azaddevarm 32:e5d6c0cffa82 247 pc_bcn.printf("Short packet sent, bytes = %d\r\n",byte_count);
shekhar 23:afadd6b988a2 248
shekhar 23:afadd6b988a2 249 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 23:afadd6b988a2 250
shekhar 23:afadd6b988a2 251 }
shekhar 23:afadd6b988a2 252 void LONG_BCN_TX()
shekhar 23:afadd6b988a2 253 {
azaddevarm 32:e5d6c0cffa82 254 /*
shekhar 23:afadd6b988a2 255 writereg(RF22_REG_6E_TX_DATA_RATE,0x04);
shekhar 23:afadd6b988a2 256 writereg(RF22_REG_6F_TX_DATA_RATE,0xEA);//600 bps
azaddevarm 32:e5d6c0cffa82 257 */
shekhar 23:afadd6b988a2 258 writereg(RF22_REG_3E_PACKET_LENGTH,LONG_TX_DATA); //long packet length
shekhar 23:afadd6b988a2 259 wait(0.02);
shekhar 23:afadd6b988a2 260 uint32_t timeout_count=10e5;
shekhar 23:afadd6b988a2 261
shekhar 23:afadd6b988a2 262 //get long_beacon array
shekhar 23:afadd6b988a2 263
azaddevarm 32:e5d6c0cffa82 264 uint8_t Long_beacon[LONG_TX_DATA];
azaddevarm 32:e5d6c0cffa82 265 for(int i = 0;i<LONG_TX_DATA;i++)
shekhar 23:afadd6b988a2 266 {
shekhar 23:afadd6b988a2 267 Long_beacon[i] = 0xA0;
shekhar 23:afadd6b988a2 268 }
shekhar 23:afadd6b988a2 269
shekhar 23:afadd6b988a2 270 clearTxBuf();
shekhar 23:afadd6b988a2 271 //writing data first time
shekhar 23:afadd6b988a2 272 cs = 0;
shekhar 23:afadd6b988a2 273 spi.write(0xFF);
azaddevarm 32:e5d6c0cffa82 274 for(int i=0; i<64;i++)
shekhar 23:afadd6b988a2 275 {
shekhar 23:afadd6b988a2 276 spi.write(Long_beacon[i]);
shekhar 23:afadd6b988a2 277 }
shekhar 23:afadd6b988a2 278 cs = 1;
shekhar 23:afadd6b988a2 279
shekhar 23:afadd6b988a2 280 //Set to Tx mode
shekhar 29:a864d57f10c4 281 writereg(RF22_REG_07_OPERATING_MODE1,0x08);
shekhar 30:ca96cddf25d0 282 wait(0.1);//necessary
shekhar 23:afadd6b988a2 283
shekhar 23:afadd6b988a2 284 //Check for fifoThresh
azaddevarm 32:e5d6c0cffa82 285 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1)
azaddevarm 32:e5d6c0cffa82 286 {
azaddevarm 32:e5d6c0cffa82 287 pc_bcn.printf("Reset\n");
azaddevarm 32:e5d6c0cffa82 288 reset_rfm(1);}
shekhar 23:afadd6b988a2 289 timeout_count=10e5;
shekhar 23:afadd6b988a2 290
shekhar 23:afadd6b988a2 291 cs = 0;
shekhar 23:afadd6b988a2 292 spi.write(0xFF);
azaddevarm 32:e5d6c0cffa82 293 for(int i=64; i<127;i++)
shekhar 23:afadd6b988a2 294 {
shekhar 23:afadd6b988a2 295 spi.write(Long_beacon[i]);
shekhar 23:afadd6b988a2 296 }
shekhar 23:afadd6b988a2 297 cs = 1;
shekhar 23:afadd6b988a2 298 wait(0.1);
shekhar 23:afadd6b988a2 299 //Check for fifoThresh
azaddevarm 32:e5d6c0cffa82 300 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1)
azaddevarm 32:e5d6c0cffa82 301 {
azaddevarm 32:e5d6c0cffa82 302 pc_bcn.printf("Reset\n");
azaddevarm 32:e5d6c0cffa82 303 reset_rfm(1);}
shekhar 23:afadd6b988a2 304 timeout_count=10e5;
shekhar 23:afadd6b988a2 305
shekhar 23:afadd6b988a2 306 //Check for packetsent interrupt
shekhar 31:90cdfbadea91 307 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;else if(timeout_count == 1) reset_rfm(1);
shekhar 23:afadd6b988a2 308
shekhar 30:ca96cddf25d0 309 //pc_bcn.printf("Long packet sent\r\n");
shekhar 23:afadd6b988a2 310
shekhar 23:afadd6b988a2 311 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 23:afadd6b988a2 312 }
shekhar 31:90cdfbadea91 313 void reset_rfm(uint8_t fl)
shekhar 23:afadd6b988a2 314 {
shekhar 31:90cdfbadea91 315 if (fl ==1 && ERROR_CHECK ==0)
shekhar 31:90cdfbadea91 316 {BCN_FAIL_COUNT++;
shekhar 31:90cdfbadea91 317 ERROR_CHECK=1;
shekhar 31:90cdfbadea91 318 printf("BCN_FAIL_COUNT++\n");}
shekhar 31:90cdfbadea91 319 else if(fl == 0)
shekhar 31:90cdfbadea91 320 {BCN_FAIL_COUNT = 0;
shekhar 31:90cdfbadea91 321 ERROR_CHECK=0;}
shekhar 23:afadd6b988a2 322 }
shekhar 23:afadd6b988a2 323 void writereg(uint8_t reg,uint8_t val)
shekhar 23:afadd6b988a2 324 {
shekhar 31:90cdfbadea91 325
shekhar 23:afadd6b988a2 326 uint8_t count = 0;
shekhar 23:afadd6b988a2 327 for(;;count++)
shekhar 23:afadd6b988a2 328 {
shekhar 23:afadd6b988a2 329 int read_val =0; cs = 0;spi.write(reg | 0x80);spi.write(val);cs = 1;
shekhar 23:afadd6b988a2 330 if(reg != 0x7 && reg != 0x58 && reg != 0xF)
shekhar 23:afadd6b988a2 331 {
shekhar 23:afadd6b988a2 332 read_val = readreg(reg);
shekhar 23:afadd6b988a2 333 if (read_val == val)
shekhar 23:afadd6b988a2 334 {
shekhar 23:afadd6b988a2 335 break;
shekhar 23:afadd6b988a2 336 }
shekhar 23:afadd6b988a2 337 else if(count == 5)
shekhar 23:afadd6b988a2 338 {
shekhar 31:90cdfbadea91 339 reset_rfm(1); printf("reg = 0x%X\n",reg);break;
shekhar 23:afadd6b988a2 340 }
shekhar 31:90cdfbadea91 341 else init_spi();
shekhar 23:afadd6b988a2 342 }
shekhar 23:afadd6b988a2 343 else
shekhar 23:afadd6b988a2 344 break;
shekhar 23:afadd6b988a2 345 }
shekhar 23:afadd6b988a2 346 }
shekhar 23:afadd6b988a2 347 uint8_t readreg(uint8_t reg)
shekhar 23:afadd6b988a2 348 {
shekhar 23:afadd6b988a2 349 uint8_t val;cs = 0;spi.write(reg & ~0x80);val = spi.write(0);cs = 1;return val;
shekhar 23:afadd6b988a2 350 }
shekhar 23:afadd6b988a2 351 void clearTxBuf()
shekhar 23:afadd6b988a2 352 {
shekhar 23:afadd6b988a2 353 writereg(RF22_REG_08_OPERATING_MODE2,0x01);
shekhar 23:afadd6b988a2 354 writereg(RF22_REG_08_OPERATING_MODE2,0x00);
shekhar 23:afadd6b988a2 355 }
shekhar 29:a864d57f10c4 356 uint8_t setFrequency(double centre)
shekhar 23:afadd6b988a2 357 {
shekhar 23:afadd6b988a2 358 uint8_t fbsel = 0x40;
shekhar 23:afadd6b988a2 359 if (centre >= 480.0) {
shekhar 23:afadd6b988a2 360 centre /= 2;
shekhar 23:afadd6b988a2 361 fbsel |= 0x20;
shekhar 29:a864d57f10c4 362 }
shekhar 23:afadd6b988a2 363 centre /= 10.0;
shekhar 23:afadd6b988a2 364 double integerPart = floor(centre);
shekhar 23:afadd6b988a2 365 double fractionalPart = centre - integerPart;
shekhar 23:afadd6b988a2 366
shekhar 23:afadd6b988a2 367 uint8_t fb = (uint8_t)integerPart - 24; // Range 0 to 23
shekhar 23:afadd6b988a2 368 fbsel |= fb;
shekhar 23:afadd6b988a2 369 uint16_t fc = fractionalPart * 64000;
shekhar 23:afadd6b988a2 370 writereg(RF22_REG_73_FREQUENCY_OFFSET1, 0); // REVISIT
shekhar 23:afadd6b988a2 371 writereg(RF22_REG_74_FREQUENCY_OFFSET2, 0);
shekhar 23:afadd6b988a2 372 writereg(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel);
shekhar 23:afadd6b988a2 373 writereg(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8);
shekhar 23:afadd6b988a2 374 writereg(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff);
shekhar 23:afadd6b988a2 375 return 0;
shekhar 23:afadd6b988a2 376 }
shekhar 31:90cdfbadea91 377 void init_spi()
shekhar 23:afadd6b988a2 378 {
shekhar 23:afadd6b988a2 379 cs=1; // chip must be deselected
shekhar 23:afadd6b988a2 380 wait(0.1);
shekhar 23:afadd6b988a2 381 spi.format(8,0);
shekhar 23:afadd6b988a2 382 spi.frequency(10000000); //10MHz SCLK
shekhar 31:90cdfbadea91 383 }
shekhar 31:90cdfbadea91 384 void Init_BEACON_HW()
shekhar 31:90cdfbadea91 385 {
shekhar 31:90cdfbadea91 386 ERROR_CHECK=0;
shekhar 31:90cdfbadea91 387 wait(0.1);
shekhar 31:90cdfbadea91 388 int i = 5;
shekhar 31:90cdfbadea91 389 while(i--)
shekhar 31:90cdfbadea91 390 {
shekhar 31:90cdfbadea91 391 init_spi();
shekhar 23:afadd6b988a2 392
shekhar 23:afadd6b988a2 393 //should either have a flag for invalid SPI or discard this for actual case or add reset
shekhar 23:afadd6b988a2 394 if (readreg(RF22_REG_00_DEVICE_TYPE) == 0x08)
shekhar 31:90cdfbadea91 395 {pc_bcn.printf("spi connection valid\r\n");
shekhar 31:90cdfbadea91 396 reset_rfm(0);break;}
shekhar 31:90cdfbadea91 397 else if (i == 1)
shekhar 30:ca96cddf25d0 398 {pc_bcn.printf("error in spi connection\r\n");
shekhar 31:90cdfbadea91 399 reset_rfm(1);
shekhar 31:90cdfbadea91 400 return;
shekhar 23:afadd6b988a2 401 }
shekhar 31:90cdfbadea91 402 }
shekhar 23:afadd6b988a2 403
shekhar 23:afadd6b988a2 404 writereg(RF22_REG_07_OPERATING_MODE1,0x80); //sw_reset
shekhar 23:afadd6b988a2 405 wait(0.1); //takes time to reset
shekhar 23:afadd6b988a2 406
shekhar 23:afadd6b988a2 407 clearTxBuf();
shekhar 23:afadd6b988a2 408
shekhar 23:afadd6b988a2 409 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 23:afadd6b988a2 410
shekhar 23:afadd6b988a2 411 //txfifoalmostempty
shekhar 23:afadd6b988a2 412 writereg(RF22_REG_7D_TX_FIFO_CONTROL2,30);
shekhar 33:27c84141086d 413
shekhar 33:27c84141086d 414 //txfifoalmostfull
shekhar 33:27c84141086d 415 writereg(RF22_REG_7C_TX_FIFO_CONTROL1,1);
shekhar 33:27c84141086d 416
shekhar 23:afadd6b988a2 417
shekhar 23:afadd6b988a2 418 //Packet-engine registers
shekhar 23:afadd6b988a2 419 writereg(RF22_REG_30_DATA_ACCESS_CONTROL,0x00);
shekhar 23:afadd6b988a2 420
shekhar 23:afadd6b988a2 421 writereg(RF22_REG_33_HEADER_CONTROL2,0x08);
shekhar 23:afadd6b988a2 422 writereg(RF22_REG_34_PREAMBLE_LENGTH,0x00);
shekhar 23:afadd6b988a2 423
shekhar 23:afadd6b988a2 424 writereg(RF22_REG_0B_GPIO_CONFIGURATION0,0x15); // TX state
shekhar 23:afadd6b988a2 425 writereg(RF22_REG_0C_GPIO_CONFIGURATION1,0x12); // RX state
shekhar 23:afadd6b988a2 426
shekhar 29:a864d57f10c4 427 setFrequency(435.0);
shekhar 31:90cdfbadea91 428
shekhar 31:90cdfbadea91 429 i=3;
shekhar 31:90cdfbadea91 430 while(i--)
shekhar 23:afadd6b988a2 431 if((readreg(RF22_REG_02_DEVICE_STATUS)& 0x08)!= 0x00)
shekhar 23:afadd6b988a2 432 {
shekhar 31:90cdfbadea91 433 setFrequency(435.0);
shekhar 31:90cdfbadea91 434 if (i==1)
shekhar 31:90cdfbadea91 435 {pc_bcn.printf("frequency not set properly\r\n");
shekhar 31:90cdfbadea91 436 reset_rfm(1);}
shekhar 23:afadd6b988a2 437 }
shekhar 23:afadd6b988a2 438
shekhar 23:afadd6b988a2 439 //set Modem Configuration
shekhar 23:afadd6b988a2 440 writereg(RF22_REG_58,0x80);
shekhar 23:afadd6b988a2 441
azaddevarm 32:e5d6c0cffa82 442 //Set Data rate - same for both long and short beacon
azaddevarm 32:e5d6c0cffa82 443
azaddevarm 32:e5d6c0cffa82 444 writereg(RF22_REG_6E_TX_DATA_RATE,0x0A);
azaddevarm 32:e5d6c0cffa82 445 writereg(RF22_REG_6F_TX_DATA_RATE,0x7D);//1280bps
azaddevarm 32:e5d6c0cffa82 446
shekhar 23:afadd6b988a2 447
shekhar 23:afadd6b988a2 448 writereg(RF22_REG_70_MODULATION_CONTROL1,0x20);
shekhar 23:afadd6b988a2 449 writereg(RF22_REG_71_MODULATION_CONTROL2,0x21);//ook = 0x21
shekhar 23:afadd6b988a2 450
shekhar 23:afadd6b988a2 451 //set tx power
shekhar 23:afadd6b988a2 452 writereg(RF22_REG_6D_TX_POWER,0x07); //20dbm
shekhar 23:afadd6b988a2 453
shekhar 23:afadd6b988a2 454 //TX_packet_length written later
shekhar 31:90cdfbadea91 455 ERROR_CHECK = 0;
shekhar 23:afadd6b988a2 456 }
shekhar 23:afadd6b988a2 457 bool Check_ACK_RECEIVED()
shekhar 23:afadd6b988a2 458 {
shekhar 23:afadd6b988a2 459 if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)
shekhar 23:afadd6b988a2 460 {
shekhar 23:afadd6b988a2 461 printf("Packet sent: ACK received\r\n");
shekhar 23:afadd6b988a2 462 return 1;
shekhar 23:afadd6b988a2 463 }
shekhar 23:afadd6b988a2 464 else
shekhar 23:afadd6b988a2 465 {
shekhar 30:ca96cddf25d0 466 pc_bcn.printf("Packet not sent\r\n");
shekhar 23:afadd6b988a2 467 return 0;
shekhar 23:afadd6b988a2 468 }
shekhar 23:afadd6b988a2 469 }
shekhar 31:90cdfbadea91 470 int main()
shekhar 23:afadd6b988a2 471 {
shekhar 23:afadd6b988a2 472 FCTN_BCN_INIT();
shekhar 23:afadd6b988a2 473
shekhar 23:afadd6b988a2 474 loop.attach(&FCTN_BCN_TX_MAIN, 10.0);//in actual case its 30.0
shekhar 23:afadd6b988a2 475
shekhar 23:afadd6b988a2 476 while(1);
shekhar 23:afadd6b988a2 477
shekhar 31:90cdfbadea91 478 }