pradeep shekhar / Mbed 2 deprecated Beacon_BAE_integration

for testing

Dependencies:   mbed

main.cpp@1:24f2092e3add, 2015-10-27 (annotated)

Committer:
shekhar
Date:
Tue Oct 27 17:39:35 2015 +0000
Revision:
1:24f2092e3add
Parent:
0:a93f830eae68
Child:
2:9b4647a9558c
minor bug fix

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shekhar 0:a93f830eae68 1 #include "beacon.h"
shekhar 0:a93f830eae68 2 #include <stdio.h>
shekhar 0:a93f830eae68 3
shekhar 0:a93f830eae68 4 Serial pc(USBTX, USBRX); //tx,rx
shekhar 0:a93f830eae68 5 SPI spi(D11, D12, D13); // mosi, miso, sclk
shekhar 0:a93f830eae68 6 DigitalOut cs(D10); //slave select or chip select
shekhar 0:a93f830eae68 7 Timer t;
shekhar 0:a93f830eae68 8 Timer t_i;
shekhar 0:a93f830eae68 9 Ticker loop;
shekhar 0:a93f830eae68 10
shekhar 0:a93f830eae68 11 void P_BCN_INIT()
shekhar 0:a93f830eae68 12 {
shekhar 0:a93f830eae68 13 pc.printf("P_BCN_INIT\n");
shekhar 0:a93f830eae68 14 BCN_INIT_STATUS = 1;
shekhar 0:a93f830eae68 15 Init_BEACON_HW();
shekhar 0:a93f830eae68 16 if (BCN_FEN == 0)
shekhar 0:a93f830eae68 17 t.start();//Start the timer for RF_Silence
shekhar 0:a93f830eae68 18 BCN_INIT_STATUS = 0;
shekhar 0:a93f830eae68 19 }
shekhar 0:a93f830eae68 20 void P_BCN_FEN()
shekhar 0:a93f830eae68 21 {
shekhar 0:a93f830eae68 22 pc.printf("P_FEN\n");
shekhar 0:a93f830eae68 23 BCN_FEN = 1;//write this value to flash
shekhar 0:a93f830eae68 24 }
shekhar 0:a93f830eae68 25 void P_BCN_TX_MAIN()
shekhar 0:a93f830eae68 26 {
shekhar 0:a93f830eae68 27 pc.printf("P_BCN_TX_MAIN\n");
shekhar 0:a93f830eae68 28 BCN_TX_MAIN_STATUS = 1;
shekhar 0:a93f830eae68 29
shekhar 0:a93f830eae68 30 if(BCN_FEN == 1)
shekhar 0:a93f830eae68 31 {
shekhar 0:a93f830eae68 32 if(BCN_TX_EN == 1)
shekhar 0:a93f830eae68 33 {
shekhar 0:a93f830eae68 34 //Measure and store BCN temperature in BCN_TS_BUFFER
shekhar 0:a93f830eae68 35 BCN_TS_BUFFER = check_Temperature();
shekhar 0:a93f830eae68 36 pc.printf("\n\ntemperature = %d\n\n",BCN_TS_BUFFER);
shekhar 0:a93f830eae68 37 //Get BCN_HK data from BCN HW(SPI) //Store BCN_HK data in BCN_HK_BUFFER
shekhar 0:a93f830eae68 38 if(BCN_STANDBY == 1 )
shekhar 0:a93f830eae68 39 {
shekhar 0:a93f830eae68 40 Set_BCN_TX_STATUS(BCN_TX_STANDBY);
shekhar 0:a93f830eae68 41 BCN_TX_MAIN_STATUS = 0;
shekhar 0:a93f830eae68 42
shekhar 0:a93f830eae68 43 // break;
shekhar 0:a93f830eae68 44 }
shekhar 0:a93f830eae68 45 else
shekhar 0:a93f830eae68 46 {
shekhar 0:a93f830eae68 47 //transmit short beacon and long beacon
shekhar 0:a93f830eae68 48 t_i.start();
shekhar 0:a93f830eae68 49 int begin = t_i.read_us();
shekhar 0:a93f830eae68 50 SHORT_BCN_TX();
shekhar 0:a93f830eae68 51 LONG_BCN_TX();
shekhar 0:a93f830eae68 52 t_i.stop();
shekhar 0:a93f830eae68 53 int end = t_i.read_us();
shekhar 0:a93f830eae68 54 pc.printf("The time required for short and long is %d seconds\r\n", end-begin);
shekhar 0:a93f830eae68 55
shekhar 0:a93f830eae68 56 if(Check_ACK_RECEIVED() == 1)
shekhar 0:a93f830eae68 57 {
shekhar 0:a93f830eae68 58 Set_BCN_TX_STATUS(BCN_TX_SUCCESS);
shekhar 0:a93f830eae68 59 BCN_TX_MAIN_STATUS = 0;
shekhar 0:a93f830eae68 60 }
shekhar 0:a93f830eae68 61 else
shekhar 0:a93f830eae68 62 {
shekhar 0:a93f830eae68 63 Set_BCN_TX_STATUS(BCN_TX_FAILURE);
shekhar 0:a93f830eae68 64 BCN_TX_MAIN_STATUS = 0;
shekhar 0:a93f830eae68 65
shekhar 0:a93f830eae68 66 }
shekhar 0:a93f830eae68 67 }
shekhar 0:a93f830eae68 68 }
shekhar 0:a93f830eae68 69 else
shekhar 0:a93f830eae68 70 {
shekhar 0:a93f830eae68 71 Set_BCN_TX_STATUS(BCN_TX_DISABLED);
shekhar 0:a93f830eae68 72 BCN_TX_MAIN_STATUS = 0;
shekhar 0:a93f830eae68 73 }
shekhar 0:a93f830eae68 74 }
shekhar 0:a93f830eae68 75 else
shekhar 0:a93f830eae68 76 {
shekhar 0:a93f830eae68 77 Set_BCN_TX_STATUS(BCN_RF_SILENCE); //Window of RF Silence: None of the Txs should be on.
shekhar 0:a93f830eae68 78 BCN_TX_MAIN_STATUS = 0;
shekhar 0:a93f830eae68 79 }
shekhar 0:a93f830eae68 80 }
shekhar 0:a93f830eae68 81
shekhar 0:a93f830eae68 82 void Set_BCN_TX_STATUS(uint8_t STATUS)
shekhar 0:a93f830eae68 83 {
shekhar 0:a93f830eae68 84 BCN_TX_STATUS = STATUS;
shekhar 0:a93f830eae68 85 }
shekhar 0:a93f830eae68 86
shekhar 0:a93f830eae68 87 uint8_t check_Temperature()
shekhar 0:a93f830eae68 88 {
shekhar 0:a93f830eae68 89 uint8_t temperature;
shekhar 0:a93f830eae68 90 writereg(RF22_REG_0F_ADC_CONFIGURATION,0x80);
shekhar 0:a93f830eae68 91 writereg(RF22_REG_12_Temperature_Sensor_Calibration,0x20);
shekhar 0:a93f830eae68 92 wait(1);
shekhar 0:a93f830eae68 93 temperature = readreg(RF22_REG_11_ADC_Value);
shekhar 0:a93f830eae68 94 temperature = (float)temperature*0.5 - 64;
shekhar 0:a93f830eae68 95 return temperature;
shekhar 0:a93f830eae68 96 }
shekhar 0:a93f830eae68 97
shekhar 0:a93f830eae68 98 void SHORT_BCN_TX()
shekhar 0:a93f830eae68 99 {
shekhar 0:a93f830eae68 100 writereg(RF22_REG_6E_TX_DATA_RATE,0x01);
shekhar 0:a93f830eae68 101 writereg(RF22_REG_6F_TX_DATA_RATE,0x4F);//160bps
shekhar 0:a93f830eae68 102 writereg(RF22_REG_3E_PACKET_LENGTH,SHORT_TX_DATA); //short packet length
shekhar 1:24f2092e3add 103 /*
shekhar 1:24f2092e3add 104 init();
shekhar 1:24f2092e3add 105 //init complete
shekhar 1:24f2092e3add 106 pc.printf("init complete.....press t to send\n");
shekhar 1:24f2092e3add 107 while(pc.getc()=='t')
shekhar 1:24f2092e3add 108 { */
shekhar 1:24f2092e3add 109 //button.rise(&interrupt_func); //interrupt enabled ( rising edge of pin 9)
shekhar 1:24f2092e3add 110 wait(0.02); // pl. update this value or even avoid it!!!
shekhar 1:24f2092e3add 111 int i=0;
shekhar 1:24f2092e3add 112 //extract values from short_beacon[]
shekhar 0:a93f830eae68 113 struct Short_beacon
shekhar 0:a93f830eae68 114 {
shekhar 0:a93f830eae68 115 uint8_t Voltage[1];
shekhar 0:a93f830eae68 116 uint8_t AngularSpeed[2];
shekhar 0:a93f830eae68 117 uint8_t SubsystemStatus[1];
shekhar 0:a93f830eae68 118 uint8_t Temp[3];
shekhar 0:a93f830eae68 119 uint8_t ErrorFlag[1];
shekhar 0:a93f830eae68 120 }Shortbeacon = { {0x88}, {0x99, 0xAA} , {0xAA},{0xAA,0xDD,0xEE}, {0x00} };
shekhar 0:a93f830eae68 121
shekhar 0:a93f830eae68 122 //filling hk data
shekhar 1:24f2092e3add 123 //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 0:a93f830eae68 124 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 1:24f2092e3add 125
shekhar 1:24f2092e3add 126 //uint8_t short_beacon[15];
shekhar 1:24f2092e3add 127 // for(int i = 0;i<15;i++)
shekhar 1:24f2092e3add 128 // {
shekhar 1:24f2092e3add 129 // short_beacon[i] = 0xAA;
shekhar 1:24f2092e3add 130 // }
shekhar 1:24f2092e3add 131
shekhar 1:24f2092e3add 132 //writereg(RF22_REG_07_OPERATING_MODE1,0x01); //ready mode ??
shekhar 0:a93f830eae68 133 clearTxBuf();
shekhar 0:a93f830eae68 134 //writing data first time
shekhar 1:24f2092e3add 135 int byte = 0;
shekhar 0:a93f830eae68 136 cs = 0;
shekhar 0:a93f830eae68 137 spi.write(0xFF);
shekhar 1:24f2092e3add 138 pc.printf("line 151");
shekhar 0:a93f830eae68 139 for (int byte_counter = 0; byte_counter <15 ; byte_counter++)
shekhar 0:a93f830eae68 140 {
shekhar 0:a93f830eae68 141 for(int j = 3; j >= 0 ; j--)
shekhar 0:a93f830eae68 142 {
shekhar 0:a93f830eae68 143 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,(j*2+1)))!= pow(2.0,(j*2+1)))
shekhar 0:a93f830eae68 144 {
shekhar 0:a93f830eae68 145 byte=0x00;
shekhar 0:a93f830eae68 146 }
shekhar 0:a93f830eae68 147 else
shekhar 0:a93f830eae68 148 {
shekhar 0:a93f830eae68 149 byte=0xF0;
shekhar 0:a93f830eae68 150 }
shekhar 0:a93f830eae68 151 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,j*2))!= pow(2.0,j*2))
shekhar 0:a93f830eae68 152 {
shekhar 0:a93f830eae68 153 byte=byte | 0x00;
shekhar 0:a93f830eae68 154 }
shekhar 0:a93f830eae68 155 else
shekhar 0:a93f830eae68 156 {
shekhar 0:a93f830eae68 157 byte=byte | 0x0F;
shekhar 0:a93f830eae68 158 }
shekhar 0:a93f830eae68 159 spi.write(byte);
shekhar 0:a93f830eae68 160 }
shekhar 0:a93f830eae68 161 }
shekhar 0:a93f830eae68 162
shekhar 0:a93f830eae68 163 cs = 1;
shekhar 1:24f2092e3add 164 pc.printf("line 177\n");
shekhar 0:a93f830eae68 165 //Set to Tx mode
shekhar 0:a93f830eae68 166 writereg(RF22_REG_07_OPERATING_MODE1,0x09);
shekhar 0:a93f830eae68 167
shekhar 0:a93f830eae68 168 //Check for fifoThresh
shekhar 0:a93f830eae68 169 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20);
shekhar 1:24f2092e3add 170 //pc.printf("fifothresh1?\n");
shekhar 1:24f2092e3add 171 pc.printf("line 184\n");
shekhar 1:24f2092e3add 172 //rf22.waitPacketSent();
shekhar 0:a93f830eae68 173 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) != 0x04);
shekhar 1:24f2092e3add 174 //pc.printf(" chk pkt sent!\r\n");
shekhar 1:24f2092e3add 175 pc.printf("Short packet sent\r\n");
shekhar 0:a93f830eae68 176
shekhar 0:a93f830eae68 177 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 0:a93f830eae68 178
shekhar 0:a93f830eae68 179 }
shekhar 0:a93f830eae68 180 void LONG_BCN_TX()
shekhar 0:a93f830eae68 181 {
shekhar 0:a93f830eae68 182 writereg(RF22_REG_6E_TX_DATA_RATE,0x04);
shekhar 0:a93f830eae68 183 writereg(RF22_REG_6F_TX_DATA_RATE,0xEA);//600 bps
shekhar 0:a93f830eae68 184 writereg(RF22_REG_3E_PACKET_LENGTH,LONG_TX_DATA); //long packet length
shekhar 0:a93f830eae68 185 wait(0.02);
shekhar 0:a93f830eae68 186
shekhar 0:a93f830eae68 187
shekhar 0:a93f830eae68 188 //get long_beacon array
shekhar 0:a93f830eae68 189
shekhar 0:a93f830eae68 190 uint8_t Long_beacon[75];
shekhar 0:a93f830eae68 191 for(int i = 0;i<75;i++)
shekhar 0:a93f830eae68 192 {
shekhar 0:a93f830eae68 193 Long_beacon[i] = 0xA0;
shekhar 0:a93f830eae68 194 }
shekhar 0:a93f830eae68 195
shekhar 0:a93f830eae68 196
shekhar 0:a93f830eae68 197
shekhar 0:a93f830eae68 198
shekhar 0:a93f830eae68 199 //setModeIdle();
shekhar 0:a93f830eae68 200 writereg(RF22_REG_07_OPERATING_MODE1,0x01); //ready mode
shekhar 0:a93f830eae68 201 clearTxBuf();
shekhar 0:a93f830eae68 202 //writing data first time
shekhar 0:a93f830eae68 203 cs = 0;
shekhar 0:a93f830eae68 204 spi.write(0xFF);
shekhar 0:a93f830eae68 205 for(int i=0; i<60;i++)
shekhar 0:a93f830eae68 206 {
shekhar 0:a93f830eae68 207 spi.write(Long_beacon[i]);
shekhar 0:a93f830eae68 208 }
shekhar 0:a93f830eae68 209 cs = 1;
shekhar 0:a93f830eae68 210
shekhar 0:a93f830eae68 211 //Set to Tx mode
shekhar 0:a93f830eae68 212 writereg(RF22_REG_07_OPERATING_MODE1,0x09);
shekhar 0:a93f830eae68 213
shekhar 0:a93f830eae68 214 //Check for fifoThresh
shekhar 0:a93f830eae68 215 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20);
shekhar 0:a93f830eae68 216
shekhar 0:a93f830eae68 217 cs = 0;
shekhar 0:a93f830eae68 218 spi.write(0xFF);
shekhar 0:a93f830eae68 219 for(int i=60; i<75;i++)
shekhar 0:a93f830eae68 220 {
shekhar 0:a93f830eae68 221 spi.write(Long_beacon[i]);
shekhar 0:a93f830eae68 222 }
shekhar 0:a93f830eae68 223 cs = 1;
shekhar 0:a93f830eae68 224 wait(0.01);
shekhar 0:a93f830eae68 225 //Check for fifoThresh
shekhar 0:a93f830eae68 226 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20);
shekhar 0:a93f830eae68 227
shekhar 0:a93f830eae68 228 //Check for packetsent interrupt
shekhar 0:a93f830eae68 229 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) != 0x04);
shekhar 0:a93f830eae68 230
shekhar 1:24f2092e3add 231 pc.printf("Long packet sent\r\n");
shekhar 0:a93f830eae68 232
shekhar 0:a93f830eae68 233 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 0:a93f830eae68 234 }
shekhar 0:a93f830eae68 235 void reset_uC()
shekhar 0:a93f830eae68 236 {
shekhar 0:a93f830eae68 237 P_BCN_INIT();
shekhar 0:a93f830eae68 238 }
shekhar 0:a93f830eae68 239 void writereg(uint8_t reg,uint8_t val)
shekhar 0:a93f830eae68 240 {
shekhar 0:a93f830eae68 241 uint8_t count = 0;
shekhar 0:a93f830eae68 242 for(;;count++)
shekhar 0:a93f830eae68 243 {
shekhar 0:a93f830eae68 244 int read_val =0; cs = 0;spi.write(reg | 0x80);spi.write(val);cs = 1;
shekhar 0:a93f830eae68 245 if(reg != 0x7 && reg != 0x58 && reg != 0xF)
shekhar 0:a93f830eae68 246 {
shekhar 0:a93f830eae68 247 read_val = readreg(reg);
shekhar 0:a93f830eae68 248 if (read_val == val)
shekhar 0:a93f830eae68 249 {
shekhar 0:a93f830eae68 250 break;
shekhar 0:a93f830eae68 251 }
shekhar 0:a93f830eae68 252 else if(count == 5)
shekhar 0:a93f830eae68 253 {
shekhar 0:a93f830eae68 254 reset_uC(), printf("reg = 0x%X\n",reg);break;
shekhar 0:a93f830eae68 255 }
shekhar 0:a93f830eae68 256 }
shekhar 0:a93f830eae68 257 else
shekhar 0:a93f830eae68 258 break;
shekhar 0:a93f830eae68 259 }
shekhar 0:a93f830eae68 260 }
shekhar 0:a93f830eae68 261 uint8_t readreg(uint8_t reg)
shekhar 0:a93f830eae68 262 {
shekhar 0:a93f830eae68 263 uint8_t val;cs = 0;spi.write(reg & ~0x80);val = spi.write(0);cs = 1;return val;
shekhar 0:a93f830eae68 264 }
shekhar 0:a93f830eae68 265 void clearTxBuf()
shekhar 0:a93f830eae68 266 {
shekhar 0:a93f830eae68 267 writereg(RF22_REG_08_OPERATING_MODE2,0x01);
shekhar 0:a93f830eae68 268 writereg(RF22_REG_08_OPERATING_MODE2,0x00);
shekhar 0:a93f830eae68 269 }
shekhar 0:a93f830eae68 270 uint8_t setFrequency(double centre,float afcPullInRange)
shekhar 0:a93f830eae68 271 {
shekhar 0:a93f830eae68 272 uint8_t fbsel = 0x40;
shekhar 0:a93f830eae68 273 uint8_t afclimiter;
shekhar 0:a93f830eae68 274 if (centre >= 480.0) {
shekhar 0:a93f830eae68 275 centre /= 2;
shekhar 0:a93f830eae68 276 fbsel |= 0x20;
shekhar 0:a93f830eae68 277 afclimiter = afcPullInRange * 1000000.0 / 1250.0;
shekhar 0:a93f830eae68 278 } else {
shekhar 0:a93f830eae68 279 if (afcPullInRange < 0.0 || afcPullInRange > 0.159375)
shekhar 0:a93f830eae68 280 return false;
shekhar 0:a93f830eae68 281 afclimiter = afcPullInRange * 1000000.0 / 625.0;
shekhar 0:a93f830eae68 282 }
shekhar 0:a93f830eae68 283 centre /= 10.0;
shekhar 0:a93f830eae68 284 double integerPart = floor(centre);
shekhar 0:a93f830eae68 285 double fractionalPart = centre - integerPart;
shekhar 0:a93f830eae68 286
shekhar 0:a93f830eae68 287 uint8_t fb = (uint8_t)integerPart - 24; // Range 0 to 23
shekhar 0:a93f830eae68 288 fbsel |= fb;
shekhar 0:a93f830eae68 289 uint16_t fc = fractionalPart * 64000;
shekhar 0:a93f830eae68 290 writereg(RF22_REG_73_FREQUENCY_OFFSET1, 0); // REVISIT
shekhar 0:a93f830eae68 291 writereg(RF22_REG_74_FREQUENCY_OFFSET2, 0);
shekhar 0:a93f830eae68 292 writereg(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel);
shekhar 0:a93f830eae68 293 writereg(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8);
shekhar 0:a93f830eae68 294 writereg(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff);
shekhar 0:a93f830eae68 295 writereg(RF22_REG_2A_AFC_LIMITER, afclimiter);
shekhar 0:a93f830eae68 296 return 0;
shekhar 0:a93f830eae68 297 }
shekhar 0:a93f830eae68 298
shekhar 0:a93f830eae68 299
shekhar 0:a93f830eae68 300 void Init_BEACON_HW()
shekhar 0:a93f830eae68 301 {
shekhar 0:a93f830eae68 302 cs=1; // chip must be deselected
shekhar 0:a93f830eae68 303 spi.format(8,0);
shekhar 0:a93f830eae68 304 spi.frequency(10000000); //10MHz SCLK
shekhar 0:a93f830eae68 305
shekhar 0:a93f830eae68 306 //should either have a flag for invalid SPI or discard this for actual case or add reset
shekhar 0:a93f830eae68 307 if (readreg(RF22_REG_00_DEVICE_TYPE) == 0x08)
shekhar 0:a93f830eae68 308 /*pc.printf("spi connection valid\r\n")*/;
shekhar 0:a93f830eae68 309 else
shekhar 0:a93f830eae68 310 {//pc.printf("error in spi connection\r\n");
shekhar 0:a93f830eae68 311 reset_uC();
shekhar 0:a93f830eae68 312 }
shekhar 0:a93f830eae68 313
shekhar 0:a93f830eae68 314 writereg(RF22_REG_07_OPERATING_MODE1,0x80); //sw_reset
shekhar 0:a93f830eae68 315 wait(1); //takes time to reset
shekhar 0:a93f830eae68 316
shekhar 0:a93f830eae68 317 clearTxBuf();
shekhar 0:a93f830eae68 318
shekhar 0:a93f830eae68 319 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 0:a93f830eae68 320
shekhar 0:a93f830eae68 321 //txfifoalmostempty
shekhar 0:a93f830eae68 322 writereg(RF22_REG_7D_TX_FIFO_CONTROL2,30);
shekhar 0:a93f830eae68 323
shekhar 0:a93f830eae68 324 //Packet-engine registers
shekhar 0:a93f830eae68 325 writereg(RF22_REG_30_DATA_ACCESS_CONTROL,0x00);
shekhar 0:a93f830eae68 326
shekhar 0:a93f830eae68 327 writereg(RF22_REG_33_HEADER_CONTROL2,0x08);
shekhar 0:a93f830eae68 328 writereg(RF22_REG_34_PREAMBLE_LENGTH,0x00);
shekhar 0:a93f830eae68 329
shekhar 0:a93f830eae68 330 writereg(RF22_REG_0B_GPIO_CONFIGURATION0,0x15); // TX state
shekhar 0:a93f830eae68 331 writereg(RF22_REG_0C_GPIO_CONFIGURATION1,0x12); // RX state
shekhar 0:a93f830eae68 332
shekhar 0:a93f830eae68 333 setFrequency(435.0,05);
shekhar 0:a93f830eae68 334
shekhar 0:a93f830eae68 335 if((readreg(RF22_REG_02_DEVICE_STATUS)& 0x08)!= 0x00)
shekhar 0:a93f830eae68 336 {
shekhar 0:a93f830eae68 337 //pc.printf("frequency not set properly\r\n");
shekhar 0:a93f830eae68 338 reset_uC();
shekhar 0:a93f830eae68 339 }
shekhar 0:a93f830eae68 340
shekhar 0:a93f830eae68 341 //set Modem Configuration
shekhar 0:a93f830eae68 342 writereg(RF22_REG_1C_IF_FILTER_BANDWIDTH,0xdf);
shekhar 0:a93f830eae68 343 writereg(RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE,0x03);
shekhar 0:a93f830eae68 344 writereg(RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE,0x39);
shekhar 0:a93f830eae68 345 writereg(RF22_REG_21_CLOCK_RECOVERY_OFFSET2,0x20);
shekhar 0:a93f830eae68 346 writereg(RF22_REG_22_CLOCK_RECOVERY_OFFSET1,0x68); //updated 20 to 25 reg values from excel sheet for 1.2 Khz freq. deviation,fsk
shekhar 0:a93f830eae68 347 writereg(RF22_REG_23_CLOCK_RECOVERY_OFFSET0,0xdc);
shekhar 0:a93f830eae68 348 writereg(RF22_REG_24_CLOCK_RECOVERY_TIMING_LOOP_GAIN1,0x00);
shekhar 0:a93f830eae68 349 writereg(RF22_REG_25_CLOCK_RECOVERY_TIMING_LOOP_GAIN0,0x6B);
shekhar 0:a93f830eae68 350 writereg(RF22_REG_2C_OOK_COUNTER_VALUE_1,0x2C);
shekhar 0:a93f830eae68 351 writereg(RF22_REG_2D_OOK_COUNTER_VALUE_2,0x11); //not required for fsk (OOK counter value)
shekhar 0:a93f830eae68 352 writereg(RF22_REG_2E_SLICER_PEAK_HOLD,0x2A); //??
shekhar 0:a93f830eae68 353 writereg(RF22_REG_58,0x80);
shekhar 0:a93f830eae68 354 writereg(RF22_REG_69_AGC_OVERRIDE1,0x60);
shekhar 0:a93f830eae68 355
shekhar 0:a93f830eae68 356 //Data rate set later
shekhar 0:a93f830eae68 357
shekhar 0:a93f830eae68 358 writereg(RF22_REG_70_MODULATION_CONTROL1,0x20);
shekhar 0:a93f830eae68 359 writereg(RF22_REG_71_MODULATION_CONTROL2,0x21);//ook = 0x21
shekhar 0:a93f830eae68 360
shekhar 0:a93f830eae68 361 //set tx power
shekhar 0:a93f830eae68 362 writereg(RF22_REG_6D_TX_POWER,0x07); //20dbm
shekhar 0:a93f830eae68 363
shekhar 0:a93f830eae68 364 //TX_packet_length written later
shekhar 0:a93f830eae68 365 }
shekhar 0:a93f830eae68 366 bool Check_ACK_RECEIVED()
shekhar 0:a93f830eae68 367 {
shekhar 0:a93f830eae68 368 if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)
shekhar 0:a93f830eae68 369 {
shekhar 0:a93f830eae68 370 printf("Packet sent: ACK received\r\n");
shekhar 0:a93f830eae68 371 return 1;
shekhar 0:a93f830eae68 372 }
shekhar 0:a93f830eae68 373 else
shekhar 0:a93f830eae68 374 {
shekhar 0:a93f830eae68 375 pc.printf("Packet not sent\r\n");
shekhar 0:a93f830eae68 376 return 0;
shekhar 0:a93f830eae68 377 }
shekhar 0:a93f830eae68 378 }
shekhar 0:a93f830eae68 379 int main()
shekhar 0:a93f830eae68 380 {
shekhar 0:a93f830eae68 381 P_BCN_INIT();
shekhar 0:a93f830eae68 382
shekhar 0:a93f830eae68 383 loop.attach(&P_BCN_TX_MAIN, 10.0);
shekhar 0:a93f830eae68 384
shekhar 0:a93f830eae68 385 while(t.read() < RF_SILENCE_TIME);
shekhar 0:a93f830eae68 386
shekhar 0:a93f830eae68 387 P_BCN_FEN();
shekhar 0:a93f830eae68 388
shekhar 0:a93f830eae68 389 while(1);
shekhar 0:a93f830eae68 390
shekhar 0:a93f830eae68 391 }