pradeep shekhar / Mbed 2 deprecated Beacon_BAE_intergration_test_3

General testings

Dependencies:   mbed

Fork of BEACON_CODE_NEW by Mohamed Azad

BCN.cpp@2:5b000925d960, 2016-04-01 (annotated)

Committer:
shekhar
Date:
Fri Apr 01 19:09:54 2016 +0000
Revision:
2:5b000925d960
Parent:
1:e4b70669ae61 
timeouts to be addded

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shekhar 0:e0a901172445 1 #include "BCN.h"
shekhar 0:e0a901172445 2 //Check the pin names
shekhar 0:e0a901172445 3 //Takes max 4.3 sec in void FCTN_BCN_TX_MAIN() (temp.calc. + long_beacon + short_beacon)
shekhar 0:e0a901172445 4
shekhar 0:e0a901172445 5 Serial pc(USBTX, USBRX); //tx,rx
shekhar 0:e0a901172445 6 SPI spi(D11, D12, D13); // mosi, miso, sclk
shekhar 0:e0a901172445 7 DigitalOut cs(D10); //slave select or chip select
shekhar 0:e0a901172445 8 Timer t_i;
shekhar 2:5b000925d960 9 Timer t_ii;
shekhar 0:e0a901172445 10 Timeout rf_sl_timeout;
shekhar 0:e0a901172445 11 Ticker loop;
shekhar 0:e0a901172445 12
shekhar 0:e0a901172445 13 //GLOBAL VARIABLES
shekhar 0:e0a901172445 14 uint8_t BCN_INIT_STATUS = 0;
shekhar 0:e0a901172445 15 uint8_t BCN_TX_MAIN_STATUS = 0;
shekhar 0:e0a901172445 16 uint8_t BCN_TX_STATUS = 0;
shekhar 0:e0a901172445 17 uint8_t BCN_TX_EN = 1; //hardcoding for now //check where is this variable toggled??
shekhar 0:e0a901172445 18 uint8_t BCN_FEN = 0; //hardcoding for now //write this value to flash
shekhar 0:e0a901172445 19 uint8_t BCN_STANDBY = 0; //hardcoding for now //check where is this variable toggled??
shekhar 0:e0a901172445 20 uint8_t BCN_TS_BUFFER = 0; // For Temperature
shekhar 0:e0a901172445 21
shekhar 0:e0a901172445 22 void FCTN_BCN_INIT()
shekhar 0:e0a901172445 23 {
shekhar 0:e0a901172445 24 pc.printf("FCTN_BCN_INIT\n");
shekhar 0:e0a901172445 25 BCN_INIT_STATUS = 1;
shekhar 0:e0a901172445 26 if(BCN_FEN == 0)
shekhar 2:5b000925d960 27 rf_sl_timeout.attach(&FCTN_BCN_FEN, RF_SILENCE_TIME);
shekhar 0:e0a901172445 28 Init_BEACON_HW();
shekhar 0:e0a901172445 29 BCN_INIT_STATUS = 0;
shekhar 0:e0a901172445 30 }
shekhar 0:e0a901172445 31 void FCTN_BCN_FEN()
shekhar 0:e0a901172445 32 {
shekhar 0:e0a901172445 33 pc.printf("FCTN_FEN\n");
shekhar 0:e0a901172445 34 BCN_FEN = 1;//write this value to flash
shekhar 0:e0a901172445 35 }
shekhar 0:e0a901172445 36 void FCTN_BCN_TX_MAIN()
shekhar 0:e0a901172445 37 {
shekhar 0:e0a901172445 38 pc.printf("FCTN_BCN_TX_MAIN\n");
shekhar 0:e0a901172445 39 t_i.start();
shekhar 0:e0a901172445 40 int begin = t_i.read_us();
shekhar 0:e0a901172445 41 BCN_TX_MAIN_STATUS = 1;
shekhar 0:e0a901172445 42
shekhar 0:e0a901172445 43 if(BCN_FEN == 1)
shekhar 0:e0a901172445 44 {
shekhar 0:e0a901172445 45 if(BCN_TX_EN == 1)
shekhar 0:e0a901172445 46 {
shekhar 0:e0a901172445 47 //Measure and store BCN temperature in BCN_TS_BUFFER
shekhar 0:e0a901172445 48 BCN_TS_BUFFER = check_Temperature();
shekhar 0:e0a901172445 49 pc.printf("\n\ntemperature = %d\n\n",BCN_TS_BUFFER);
shekhar 0:e0a901172445 50 //Get BCN_HK data from BCN HW(SPI) //Store BCN_HK data in BCN_HK_BUFFER
shekhar 0:e0a901172445 51 if(BCN_STANDBY == 1 )
shekhar 0:e0a901172445 52 {
shekhar 0:e0a901172445 53 Set_BCN_TX_STATUS(BCN_TX_STANDBY);
shekhar 0:e0a901172445 54 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e0a901172445 55
shekhar 0:e0a901172445 56 // break;
shekhar 0:e0a901172445 57 }
shekhar 0:e0a901172445 58 else
shekhar 0:e0a901172445 59 {
shekhar 0:e0a901172445 60 //transmit short beacon and long beacon
shekhar 1:e4b70669ae61 61 //SHORT_BCN_TX();
shekhar 1:e4b70669ae61 62 LONG_BCN_TX();
shekhar 0:e0a901172445 63
shekhar 0:e0a901172445 64 if(Check_ACK_RECEIVED() == 1)
shekhar 0:e0a901172445 65 {
shekhar 0:e0a901172445 66 Set_BCN_TX_STATUS(BCN_TX_SUCCESS);
shekhar 0:e0a901172445 67 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e0a901172445 68 }
shekhar 0:e0a901172445 69 else
shekhar 0:e0a901172445 70 {
shekhar 0:e0a901172445 71 Set_BCN_TX_STATUS(BCN_TX_FAILURE);
shekhar 0:e0a901172445 72 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e0a901172445 73
shekhar 0:e0a901172445 74 }
shekhar 0:e0a901172445 75 }
shekhar 0:e0a901172445 76 }
shekhar 0:e0a901172445 77 else
shekhar 0:e0a901172445 78 {
shekhar 0:e0a901172445 79 Set_BCN_TX_STATUS(BCN_TX_DISABLED);
shekhar 0:e0a901172445 80 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e0a901172445 81 }
shekhar 0:e0a901172445 82 }
shekhar 0:e0a901172445 83 else
shekhar 0:e0a901172445 84 {
shekhar 0:e0a901172445 85 Set_BCN_TX_STATUS(BCN_RF_SILENCE); //Window of RF Silence: None of the Txs should be on.
shekhar 0:e0a901172445 86 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e0a901172445 87 }
shekhar 0:e0a901172445 88 t_i.stop();
shekhar 0:e0a901172445 89 int end = t_i.read_us();
shekhar 0:e0a901172445 90 pc.printf("The time required for FCTN_BCN_TX_MAIN is %d useconds\r\n", end-begin);
shekhar 0:e0a901172445 91
shekhar 0:e0a901172445 92 }
shekhar 0:e0a901172445 93
shekhar 0:e0a901172445 94 void Set_BCN_TX_STATUS(uint8_t STATUS)
shekhar 0:e0a901172445 95 {
shekhar 0:e0a901172445 96 BCN_TX_STATUS = STATUS;
shekhar 0:e0a901172445 97 }
shekhar 0:e0a901172445 98
shekhar 0:e0a901172445 99 uint8_t check_Temperature()
shekhar 0:e0a901172445 100 {
shekhar 0:e0a901172445 101 uint8_t temperature;
shekhar 0:e0a901172445 102 writereg(RF22_REG_0F_ADC_CONFIGURATION,0x00);
shekhar 0:e0a901172445 103 writereg(RF22_REG_12_Temperature_Sensor_Calibration,0x20);
shekhar 0:e0a901172445 104 writereg(RF22_REG_0F_ADC_CONFIGURATION,0x80);
shekhar 0:e0a901172445 105 wait(0.1);
shekhar 0:e0a901172445 106 temperature = readreg(RF22_REG_11_ADC_Value);
shekhar 0:e0a901172445 107 temperature = (float)temperature*0.5 - 64;
shekhar 0:e0a901172445 108 return temperature;
shekhar 0:e0a901172445 109 }
shekhar 0:e0a901172445 110
shekhar 0:e0a901172445 111 void SHORT_BCN_TX()
shekhar 0:e0a901172445 112 {
shekhar 0:e0a901172445 113 writereg(RF22_REG_6E_TX_DATA_RATE,0x01);
shekhar 0:e0a901172445 114 writereg(RF22_REG_6F_TX_DATA_RATE,0x50);//160bps
shekhar 0:e0a901172445 115 writereg(RF22_REG_3E_PACKET_LENGTH,SHORT_TX_DATA); //short packet length
shekhar 0:e0a901172445 116 wait(0.02);
shekhar 0:e0a901172445 117
shekhar 0:e0a901172445 118 uint32_t timeout_count = 10e5;
shekhar 0:e0a901172445 119 //extract values from short_beacon[]
shekhar 0:e0a901172445 120
shekhar 0:e0a901172445 121 struct Short_beacon
shekhar 0:e0a901172445 122 {
shekhar 0:e0a901172445 123 uint8_t Voltage[1];
shekhar 0:e0a901172445 124 uint8_t AngularSpeed[2];
shekhar 0:e0a901172445 125 uint8_t SubsystemStatus[1];
shekhar 0:e0a901172445 126 uint8_t Temp[3];
shekhar 0:e0a901172445 127 uint8_t ErrorFlag[1];
shekhar 0:e0a901172445 128 }Shortbeacon = { {0x88}, {0x99, 0xAA} , {0xAA},{0xAA,0xDD,0xEE}, {0x00} };
shekhar 0:e0a901172445 129
shekhar 0:e0a901172445 130 //filling hk data
shekhar 0:e0a901172445 131 //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:e0a901172445 132 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 0:e0a901172445 133
shekhar 0:e0a901172445 134 clearTxBuf();
shekhar 0:e0a901172445 135 //writing data first time
shekhar 0:e0a901172445 136 int byte = 0;
shekhar 0:e0a901172445 137 cs = 0;
shekhar 0:e0a901172445 138 spi.write(0xFF);
shekhar 0:e0a901172445 139
shekhar 0:e0a901172445 140 for (int byte_counter = 0; byte_counter <15 ; byte_counter++)
shekhar 0:e0a901172445 141 {
shekhar 0:e0a901172445 142 for(int j = 3; j >= 0 ; j--)
shekhar 0:e0a901172445 143 {
shekhar 0:e0a901172445 144 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,(j*2+1)))!= pow(2.0,(j*2+1)))
shekhar 0:e0a901172445 145 {
shekhar 0:e0a901172445 146 byte=0x00;
shekhar 0:e0a901172445 147 }
shekhar 0:e0a901172445 148 else
shekhar 0:e0a901172445 149 {
shekhar 0:e0a901172445 150 byte=0xF0;
shekhar 0:e0a901172445 151 }
shekhar 0:e0a901172445 152 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,j*2))!= pow(2.0,j*2))
shekhar 0:e0a901172445 153 {
shekhar 0:e0a901172445 154 byte=byte | 0x00;
shekhar 0:e0a901172445 155 }
shekhar 0:e0a901172445 156 else
shekhar 0:e0a901172445 157 {
shekhar 0:e0a901172445 158 byte=byte | 0x0F;
shekhar 0:e0a901172445 159 }
shekhar 0:e0a901172445 160 spi.write(byte);
shekhar 0:e0a901172445 161 }
shekhar 0:e0a901172445 162 }
shekhar 0:e0a901172445 163
shekhar 0:e0a901172445 164 cs = 1;
shekhar 0:e0a901172445 165
shekhar 0:e0a901172445 166 //Set to Tx mode
shekhar 0:e0a901172445 167 writereg(RF22_REG_07_OPERATING_MODE1,0x08);//*
shekhar 0:e0a901172445 168 wait(0.1);
shekhar 2:5b000925d960 169
shekhar 0:e0a901172445 170 //Check for fifoThresh
shekhar 2:5b000925d960 171 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;
shekhar 2:5b000925d960 172 //timeout of 1310800 us req.
shekhar 0:e0a901172445 173
shekhar 0:e0a901172445 174 //Check for packet_sent
shekhar 2:5b000925d960 175 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;
shekhar 2:5b000925d960 176 t_ii.stop();
shekhar 2:5b000925d960 177 //timeout of 1622796 us req.
shekhar 0:e0a901172445 178
shekhar 2:5b000925d960 179 pc.printf("The time required is %d useconds\r\n",t_ii.read_us());
shekhar 0:e0a901172445 180 //pc.printf("Short packet sent\r\n");
shekhar 0:e0a901172445 181
shekhar 0:e0a901172445 182 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 0:e0a901172445 183
shekhar 0:e0a901172445 184 }
shekhar 0:e0a901172445 185 void LONG_BCN_TX()
shekhar 0:e0a901172445 186 {
shekhar 2:5b000925d960 187 writereg(RF22_REG_6E_TX_DATA_RATE,0x08);
shekhar 2:5b000925d960 188 writereg(RF22_REG_6F_TX_DATA_RATE,0x31);//1000 bps
shekhar 0:e0a901172445 189 writereg(RF22_REG_3E_PACKET_LENGTH,LONG_TX_DATA); //long packet length
shekhar 0:e0a901172445 190 wait(0.02);
shekhar 0:e0a901172445 191 uint32_t timeout_count=10e5;
shekhar 0:e0a901172445 192
shekhar 0:e0a901172445 193 //get long_beacon array
shekhar 0:e0a901172445 194
shekhar 2:5b000925d960 195 uint8_t Long_beacon[125];
shekhar 2:5b000925d960 196 for(int i = 0;i<125;)
shekhar 0:e0a901172445 197 {
shekhar 0:e0a901172445 198 Long_beacon[i++] = 0xAA;
shekhar 0:e0a901172445 199 }
shekhar 0:e0a901172445 200
shekhar 0:e0a901172445 201 //setModeIdle();
shekhar 0:e0a901172445 202 clearTxBuf();
shekhar 0:e0a901172445 203 //writing data first time
shekhar 0:e0a901172445 204 cs = 0;
shekhar 0:e0a901172445 205 spi.write(0xFF);
shekhar 2:5b000925d960 206 for(int i=0; i<64;i++)
shekhar 0:e0a901172445 207 {
shekhar 0:e0a901172445 208 spi.write(Long_beacon[i]);
shekhar 0:e0a901172445 209 }
shekhar 0:e0a901172445 210 cs = 1;
shekhar 0:e0a901172445 211
shekhar 0:e0a901172445 212 //Set to Tx mode
shekhar 0:e0a901172445 213 writereg(RF22_REG_07_OPERATING_MODE1,0x08);//*
shekhar 0:e0a901172445 214 wait(0.1);
shekhar 0:e0a901172445 215
shekhar 0:e0a901172445 216 //Check for fifoThresh
shekhar 2:5b000925d960 217 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;
shekhar 2:5b000925d960 218 //timeout of 158236 us req.
shekhar 0:e0a901172445 219
shekhar 0:e0a901172445 220 cs = 0;
shekhar 0:e0a901172445 221 spi.write(0xFF);
shekhar 2:5b000925d960 222 for(int i=60; i<125;i++)
shekhar 0:e0a901172445 223 {
shekhar 0:e0a901172445 224 spi.write(Long_beacon[i]);
shekhar 0:e0a901172445 225 }
shekhar 0:e0a901172445 226 cs = 1;
shekhar 0:e0a901172445 227 wait(0.1);
shekhar 2:5b000925d960 228
shekhar 0:e0a901172445 229 //Check for fifoThresh
shekhar 2:5b000925d960 230 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;
shekhar 2:5b000925d960 231 //timeout of 7 us req.
shekhar 0:e0a901172445 232 //Check for packetsent interrupt
shekhar 2:5b000925d960 233 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;
shekhar 2:5b000925d960 234 //timeout of 679883 us req.
shekhar 0:e0a901172445 235
shekhar 0:e0a901172445 236 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 0:e0a901172445 237 }
shekhar 0:e0a901172445 238 void reset_rfm()
shekhar 0:e0a901172445 239 {
shekhar 0:e0a901172445 240 FCTN_BCN_INIT();
shekhar 0:e0a901172445 241 }
shekhar 0:e0a901172445 242 void writereg(uint8_t reg,uint8_t val)
shekhar 0:e0a901172445 243 {
shekhar 0:e0a901172445 244 uint8_t count = 0;
shekhar 0:e0a901172445 245 for(;;count++)
shekhar 0:e0a901172445 246 {
shekhar 0:e0a901172445 247 int read_val =0; cs = 0;spi.write(reg | 0x80);spi.write(val);cs = 1;
shekhar 0:e0a901172445 248 if(reg != 0x7 && reg != 0x58 && reg != 0xF)
shekhar 0:e0a901172445 249 {
shekhar 0:e0a901172445 250 read_val = readreg(reg);
shekhar 0:e0a901172445 251 if (read_val == val)
shekhar 0:e0a901172445 252 {
shekhar 0:e0a901172445 253 break;
shekhar 0:e0a901172445 254 }
shekhar 0:e0a901172445 255 else if(count == 5)
shekhar 0:e0a901172445 256 {
shekhar 0:e0a901172445 257 reset_rfm(), printf("reg = 0x%X\n",reg);break;
shekhar 0:e0a901172445 258 }
shekhar 0:e0a901172445 259 }
shekhar 0:e0a901172445 260 else
shekhar 0:e0a901172445 261 break;
shekhar 0:e0a901172445 262 }
shekhar 0:e0a901172445 263 }
shekhar 0:e0a901172445 264 uint8_t readreg(uint8_t reg)
shekhar 0:e0a901172445 265 {
shekhar 0:e0a901172445 266 uint8_t val;cs = 0;spi.write(reg & ~0x80);val = spi.write(0);cs = 1;return val;
shekhar 0:e0a901172445 267 }
shekhar 0:e0a901172445 268 void clearTxBuf()
shekhar 0:e0a901172445 269 {
shekhar 0:e0a901172445 270 writereg(RF22_REG_08_OPERATING_MODE2,0x01);
shekhar 0:e0a901172445 271 writereg(RF22_REG_08_OPERATING_MODE2,0x00);
shekhar 0:e0a901172445 272 }
shekhar 1:e4b70669ae61 273 uint8_t setFrequency(double centre)
shekhar 0:e0a901172445 274 {
shekhar 0:e0a901172445 275 uint8_t fbsel = 0x40;
shekhar 0:e0a901172445 276 if (centre >= 480.0) {
shekhar 0:e0a901172445 277 centre /= 2;
shekhar 0:e0a901172445 278 fbsel |= 0x20;
shekhar 1:e4b70669ae61 279 }
shekhar 0:e0a901172445 280 centre /= 10.0;
shekhar 0:e0a901172445 281 double integerPart = floor(centre);
shekhar 0:e0a901172445 282 double fractionalPart = centre - integerPart;
shekhar 0:e0a901172445 283
shekhar 0:e0a901172445 284 uint8_t fb = (uint8_t)integerPart - 24; // Range 0 to 23
shekhar 0:e0a901172445 285 fbsel |= fb;
shekhar 0:e0a901172445 286 uint16_t fc = fractionalPart * 64000;
shekhar 0:e0a901172445 287 writereg(RF22_REG_73_FREQUENCY_OFFSET1, 0); // REVISIT
shekhar 0:e0a901172445 288 writereg(RF22_REG_74_FREQUENCY_OFFSET2, 0);
shekhar 0:e0a901172445 289 writereg(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel);
shekhar 0:e0a901172445 290 writereg(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8);
shekhar 0:e0a901172445 291 writereg(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff);
shekhar 0:e0a901172445 292 return 0;
shekhar 0:e0a901172445 293 }
shekhar 0:e0a901172445 294
shekhar 0:e0a901172445 295
shekhar 0:e0a901172445 296 void Init_BEACON_HW()
shekhar 0:e0a901172445 297 {
shekhar 0:e0a901172445 298 wait(0.1);
shekhar 0:e0a901172445 299 cs=1; // chip must be deselected
shekhar 0:e0a901172445 300 wait(0.1);
shekhar 0:e0a901172445 301 spi.format(8,0);
shekhar 0:e0a901172445 302 spi.frequency(10000000); //10MHz SCLK
shekhar 0:e0a901172445 303
shekhar 0:e0a901172445 304 //should either have a flag for invalid SPI or discard this for actual case or add reset
shekhar 0:e0a901172445 305 if (readreg(RF22_REG_00_DEVICE_TYPE) == 0x08)
shekhar 0:e0a901172445 306 pc.printf("spi connection valid\r\n");
shekhar 0:e0a901172445 307 else
shekhar 0:e0a901172445 308 {pc.printf("error in spi connection\r\n");
shekhar 0:e0a901172445 309 reset_rfm();
shekhar 0:e0a901172445 310 }
shekhar 0:e0a901172445 311
shekhar 0:e0a901172445 312 writereg(RF22_REG_07_OPERATING_MODE1,0x80); //sw_reset
shekhar 0:e0a901172445 313 wait(0.1); //takes time to reset
shekhar 0:e0a901172445 314
shekhar 0:e0a901172445 315 clearTxBuf();
shekhar 0:e0a901172445 316
shekhar 0:e0a901172445 317 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 0:e0a901172445 318
shekhar 0:e0a901172445 319 //txfifoalmostempty
shekhar 0:e0a901172445 320 writereg(RF22_REG_7D_TX_FIFO_CONTROL2,30);
shekhar 0:e0a901172445 321
shekhar 0:e0a901172445 322 //Packet-engine registers
shekhar 0:e0a901172445 323 writereg(RF22_REG_30_DATA_ACCESS_CONTROL,0x00);
shekhar 0:e0a901172445 324
shekhar 0:e0a901172445 325 writereg(RF22_REG_33_HEADER_CONTROL2,0x08);
shekhar 0:e0a901172445 326 writereg(RF22_REG_34_PREAMBLE_LENGTH,0x00);
shekhar 0:e0a901172445 327
shekhar 0:e0a901172445 328 writereg(RF22_REG_0B_GPIO_CONFIGURATION0,0x15); // TX state
shekhar 0:e0a901172445 329 writereg(RF22_REG_0C_GPIO_CONFIGURATION1,0x12); // RX state
shekhar 0:e0a901172445 330
shekhar 1:e4b70669ae61 331 setFrequency(435.0);
shekhar 0:e0a901172445 332
shekhar 0:e0a901172445 333 if((readreg(RF22_REG_02_DEVICE_STATUS)& 0x08)!= 0x00)
shekhar 0:e0a901172445 334 {
shekhar 0:e0a901172445 335 pc.printf("frequency not set properly\r\n");
shekhar 0:e0a901172445 336 reset_rfm();
shekhar 0:e0a901172445 337 }
shekhar 0:e0a901172445 338
shekhar 0:e0a901172445 339 //set Modem Configuration
shekhar 0:e0a901172445 340 //writereg(RF22_REG_1C_IF_FILTER_BANDWIDTH,0xdf);
shekhar 0:e0a901172445 341 //writereg(RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE,0x03);
shekhar 0:e0a901172445 342 //writereg(RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE,0x39);
shekhar 0:e0a901172445 343 //writereg(RF22_REG_21_CLOCK_RECOVERY_OFFSET2,0x20);
shekhar 0:e0a901172445 344 //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:e0a901172445 345 //writereg(RF22_REG_23_CLOCK_RECOVERY_OFFSET0,0xdc);
shekhar 0:e0a901172445 346 //writereg(RF22_REG_24_CLOCK_RECOVERY_TIMING_LOOP_GAIN1,0x00);
shekhar 0:e0a901172445 347 //writereg(RF22_REG_25_CLOCK_RECOVERY_TIMING_LOOP_GAIN0,0x6B);
shekhar 0:e0a901172445 348 //writereg(RF22_REG_2C_OOK_COUNTER_VALUE_1,0x2C);
shekhar 0:e0a901172445 349 //writereg(RF22_REG_2D_OOK_COUNTER_VALUE_2,0x11); //not required for fsk (OOK counter value)
shekhar 0:e0a901172445 350 //writereg(RF22_REG_2E_SLICER_PEAK_HOLD,0x2A); //??
shekhar 0:e0a901172445 351 writereg(RF22_REG_58,0x80);
shekhar 0:e0a901172445 352 //writereg(RF22_REG_69_AGC_OVERRIDE1,0x60);
shekhar 0:e0a901172445 353
shekhar 0:e0a901172445 354 //Data rate set later
shekhar 0:e0a901172445 355
shekhar 0:e0a901172445 356 writereg(RF22_REG_70_MODULATION_CONTROL1,0x20);
shekhar 0:e0a901172445 357 writereg(RF22_REG_71_MODULATION_CONTROL2,0x21);//ook = 0x21
shekhar 0:e0a901172445 358
shekhar 0:e0a901172445 359 //set tx power
shekhar 0:e0a901172445 360 writereg(RF22_REG_6D_TX_POWER,0x07); //20dbm
shekhar 0:e0a901172445 361
shekhar 0:e0a901172445 362 //TX_packet_length written later
shekhar 0:e0a901172445 363 }
shekhar 0:e0a901172445 364 bool Check_ACK_RECEIVED()
shekhar 0:e0a901172445 365 {
shekhar 0:e0a901172445 366 if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)
shekhar 0:e0a901172445 367 {
shekhar 0:e0a901172445 368 printf("Packet sent: ACK received\r\n");
shekhar 0:e0a901172445 369 return 1;
shekhar 0:e0a901172445 370 }
shekhar 0:e0a901172445 371 else
shekhar 0:e0a901172445 372 {
shekhar 0:e0a901172445 373 pc.printf("Packet not sent\r\n");
shekhar 0:e0a901172445 374 return 0;
shekhar 0:e0a901172445 375 }
shekhar 0:e0a901172445 376 }
shekhar 0:e0a901172445 377 int main()
shekhar 0:e0a901172445 378 {
shekhar 0:e0a901172445 379 FCTN_BCN_INIT();
shekhar 0:e0a901172445 380
shekhar 0:e0a901172445 381 loop.attach(&FCTN_BCN_TX_MAIN, 10.0);//in actual case its 30.0
shekhar 0:e0a901172445 382
shekhar 0:e0a901172445 383 while(1);
shekhar 0:e0a901172445 384
shekhar 0:e0a901172445 385 }