pradeep shekhar / Mbed 2 deprecated Beacon_Code_testing

Final Beacon code for testing

Dependencies:   mbed

main.cpp@1:8b18c140a710, 2015-10-05 (annotated)

Committer:
shekhar
Date:
Mon Oct 05 17:15:24 2015 +0000
Revision:
1:8b18c140a710
Parent:
0:e4162b2d1a79
Child:
2:44b63c859531
Standby mode added...temperature shown incorrect

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shekhar 0:e4162b2d1a79 1 #include "tx.h"
shekhar 0:e4162b2d1a79 2 #include <stdio.h>
shekhar 0:e4162b2d1a79 3
shekhar 0:e4162b2d1a79 4 Ticker loop;
shekhar 0:e4162b2d1a79 5 Serial pc(USBTX, USBRX); //tx,rx
shekhar 0:e4162b2d1a79 6 SPI spi(D11, D12, D13); // mosi, miso, sclk
shekhar 0:e4162b2d1a79 7 DigitalOut cs(D10); //slave select or chip select
shekhar 0:e4162b2d1a79 8
shekhar 0:e4162b2d1a79 9 Timer t;
shekhar 0:e4162b2d1a79 10
shekhar 0:e4162b2d1a79 11 void P_BCN_INIT()
shekhar 0:e4162b2d1a79 12 {
shekhar 0:e4162b2d1a79 13 BCN_INIT_STATUS = 1;
shekhar 0:e4162b2d1a79 14 //check initialization parameters
shekhar 0:e4162b2d1a79 15 Init_BEACON_HW();
shekhar 0:e4162b2d1a79 16 //t.start();
shekhar 0:e4162b2d1a79 17 BCN_INIT_STATUS = 0;
shekhar 0:e4162b2d1a79 18 }
shekhar 0:e4162b2d1a79 19 void P_BCN_FEN()
shekhar 0:e4162b2d1a79 20 {
shekhar 0:e4162b2d1a79 21 BCN_FEN = 1;
shekhar 0:e4162b2d1a79 22 }
shekhar 0:e4162b2d1a79 23 void P_BCN_TX_MAIN()
shekhar 0:e4162b2d1a79 24 {
shekhar 1:8b18c140a710 25 pc.printf("line 25");
shekhar 0:e4162b2d1a79 26 BCN_TX_MAIN_STATUS = 1;
shekhar 0:e4162b2d1a79 27
shekhar 0:e4162b2d1a79 28 if(BCN_FEN == 1)
shekhar 0:e4162b2d1a79 29 {
shekhar 1:8b18c140a710 30 pc.printf("line 30");
shekhar 0:e4162b2d1a79 31 if(BCN_TX_EN == 1)
shekhar 0:e4162b2d1a79 32 {
shekhar 1:8b18c140a710 33 pc.printf("line 33");
shekhar 0:e4162b2d1a79 34 //Measure and store BCN temperature in BCN_TS_BUFFER
shekhar 0:e4162b2d1a79 35 BCN_TS_BUFFER = ((check_Temperature())*0.5) - 64;
shekhar 1:8b18c140a710 36 pc.printf("line 36");
shekhar 0:e4162b2d1a79 37 //Get BCN_HK data from BCN HW(SPI) //Store BCN_HK data in BCN_HK_BUFFER
shekhar 0:e4162b2d1a79 38 if(BCN_STANDBY == 1 )
shekhar 0:e4162b2d1a79 39 {
shekhar 1:8b18c140a710 40 pc.printf("line 40");
shekhar 0:e4162b2d1a79 41 Set_BCN_TX_STATUS(BCN_TX_STANDBY);
shekhar 0:e4162b2d1a79 42 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e4162b2d1a79 43
shekhar 0:e4162b2d1a79 44 // break;
shekhar 0:e4162b2d1a79 45 }
shekhar 0:e4162b2d1a79 46 else
shekhar 0:e4162b2d1a79 47 {
shekhar 0:e4162b2d1a79 48 //pc.printf("in BCN_TX_STANDBY != 1\r\n");
shekhar 1:8b18c140a710 49 pc.printf("line 49");
shekhar 0:e4162b2d1a79 50 t.start();
shekhar 0:e4162b2d1a79 51 int begin = t.read();
shekhar 1:8b18c140a710 52 pc.printf("line 52");
shekhar 0:e4162b2d1a79 53 SHORT_BCN_TX();
shekhar 0:e4162b2d1a79 54 LONG_BCN_TX();
shekhar 1:8b18c140a710 55 pc.printf("line 55");
shekhar 0:e4162b2d1a79 56 int end = t.read();
shekhar 0:e4162b2d1a79 57 pc.printf("The time required for short and long is %d seconds\r\n", end-begin);
shekhar 0:e4162b2d1a79 58 pc.printf("Short and Long packets sent\r\n");
shekhar 0:e4162b2d1a79 59 //include LONG_BCN_TX also
shekhar 0:e4162b2d1a79 60 if(Check_ACK_RECEIVED() == 1)
shekhar 0:e4162b2d1a79 61 {
shekhar 0:e4162b2d1a79 62 Set_BCN_TX_STATUS(BCN_TX_SUCCESS);
shekhar 0:e4162b2d1a79 63 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e4162b2d1a79 64 // break;
shekhar 0:e4162b2d1a79 65
shekhar 0:e4162b2d1a79 66 }
shekhar 0:e4162b2d1a79 67 else
shekhar 0:e4162b2d1a79 68 {
shekhar 0:e4162b2d1a79 69 Set_BCN_TX_STATUS(BCN_TX_FAILURE);
shekhar 0:e4162b2d1a79 70 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e4162b2d1a79 71 // break;
shekhar 0:e4162b2d1a79 72
shekhar 0:e4162b2d1a79 73 }
shekhar 0:e4162b2d1a79 74 }
shekhar 0:e4162b2d1a79 75 }
shekhar 0:e4162b2d1a79 76 else
shekhar 0:e4162b2d1a79 77 {
shekhar 0:e4162b2d1a79 78 Set_BCN_TX_STATUS(BCN_TX_DISABLED);
shekhar 0:e4162b2d1a79 79 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e4162b2d1a79 80 // break;
shekhar 0:e4162b2d1a79 81
shekhar 0:e4162b2d1a79 82 }
shekhar 0:e4162b2d1a79 83 }
shekhar 0:e4162b2d1a79 84 else
shekhar 0:e4162b2d1a79 85 {
shekhar 0:e4162b2d1a79 86 Set_BCN_TX_STATUS(BCN_RF_SILENCE); //Window of RF Silence: None of the Txs should be on.
shekhar 0:e4162b2d1a79 87 BCN_TX_MAIN_STATUS = 0;
shekhar 0:e4162b2d1a79 88 // break;
shekhar 0:e4162b2d1a79 89 }
shekhar 0:e4162b2d1a79 90 }
shekhar 0:e4162b2d1a79 91
shekhar 0:e4162b2d1a79 92 void Set_BCN_TX_STATUS(uint8_t STATUS)
shekhar 0:e4162b2d1a79 93 {
shekhar 0:e4162b2d1a79 94 BCN_TX_STATUS = STATUS;
shekhar 0:e4162b2d1a79 95 }
shekhar 0:e4162b2d1a79 96
shekhar 0:e4162b2d1a79 97 int check_Temperature()
shekhar 0:e4162b2d1a79 98 {
shekhar 0:e4162b2d1a79 99 int temperature;
shekhar 0:e4162b2d1a79 100 while((readreg(RF22_REG_0F_ADC_CONFIGURATION) && 0x80) == 0x0)
shekhar 0:e4162b2d1a79 101 {
shekhar 0:e4162b2d1a79 102 writereg(RF22_REG_0F_ADC_CONFIGURATION,128); //128 = 10000000
shekhar 0:e4162b2d1a79 103 writereg(RF22_REG_12_Temperature_Sensor_Calibration,32); //160 == 10100000 32 == 00100000
shekhar 0:e4162b2d1a79 104 wait(1);
shekhar 0:e4162b2d1a79 105 temperature = readreg(RF22_REG_11_ADC_Value);
shekhar 0:e4162b2d1a79 106 //pc.printf("Temperature: %d\r\n", temperature);
shekhar 0:e4162b2d1a79 107 }
shekhar 0:e4162b2d1a79 108 return temperature;
shekhar 0:e4162b2d1a79 109 }
shekhar 0:e4162b2d1a79 110
shekhar 0:e4162b2d1a79 111 void SHORT_BCN_TX()
shekhar 0:e4162b2d1a79 112 {
shekhar 0:e4162b2d1a79 113 writereg(RF22_REG_6E_TX_DATA_RATE,0x01);
shekhar 0:e4162b2d1a79 114 writereg(RF22_REG_6F_TX_DATA_RATE,0x4F);//160bps
shekhar 0:e4162b2d1a79 115 writereg(RF22_REG_3E_PACKET_LENGTH,SHORT_TX_DATA); //short packet length
shekhar 0:e4162b2d1a79 116 /*
shekhar 0:e4162b2d1a79 117 init();
shekhar 0:e4162b2d1a79 118 //init complete
shekhar 0:e4162b2d1a79 119 pc.printf("init complete.....press t to send\n");
shekhar 0:e4162b2d1a79 120 while(pc.getc()=='t')
shekhar 0:e4162b2d1a79 121 { */
shekhar 0:e4162b2d1a79 122 //button.rise(&interrupt_func); //interrupt enabled ( rising edge of pin 9)
shekhar 0:e4162b2d1a79 123 wait(0.02); // pl. update this value or even avoid it!!!
shekhar 0:e4162b2d1a79 124 int i=0;
shekhar 0:e4162b2d1a79 125 //extract values from short_beacon[]
shekhar 0:e4162b2d1a79 126 struct Short_beacon
shekhar 0:e4162b2d1a79 127 {
shekhar 0:e4162b2d1a79 128 uint8_t Voltage[1];
shekhar 0:e4162b2d1a79 129 uint8_t AngularSpeed[2];
shekhar 0:e4162b2d1a79 130 uint8_t SubsystemStatus[1];
shekhar 0:e4162b2d1a79 131 uint8_t Temp[3];
shekhar 0:e4162b2d1a79 132 uint8_t ErrorFlag[1];
shekhar 0:e4162b2d1a79 133 }Shortbeacon = { {0x88}, {0x99, 0xAA} , {0xAA},{0xAA,0xDD,0xEE}, {0x00} };
shekhar 0:e4162b2d1a79 134
shekhar 0:e4162b2d1a79 135 //filling hk data
shekhar 0:e4162b2d1a79 136 //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:e4162b2d1a79 137 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:e4162b2d1a79 138
shekhar 0:e4162b2d1a79 139 //uint8_t Short_beacon[15];
shekhar 0:e4162b2d1a79 140 // for(int i = 0;i<15;i++)
shekhar 0:e4162b2d1a79 141 // {
shekhar 0:e4162b2d1a79 142 // Long_beacon[i] = 0xAA;
shekhar 0:e4162b2d1a79 143 // }
shekhar 0:e4162b2d1a79 144
shekhar 0:e4162b2d1a79 145 //writereg(RF22_REG_07_OPERATING_MODE1,0x01); //ready mode ??
shekhar 0:e4162b2d1a79 146 clearTxBuf();
shekhar 0:e4162b2d1a79 147 //writing data first time
shekhar 0:e4162b2d1a79 148 int byte = 0;
shekhar 0:e4162b2d1a79 149 cs = 0;
shekhar 0:e4162b2d1a79 150 spi.write(0xFF);
shekhar 1:8b18c140a710 151 pc.printf("line 151");
shekhar 1:8b18c140a710 152 for (int byte_counter = 0; byte_counter <15 ; byte_counter++)
shekhar 0:e4162b2d1a79 153 {
shekhar 1:8b18c140a710 154 pc.printf("%d byte counter\n", byte_counter);
shekhar 0:e4162b2d1a79 155 for(int j = 3; j >= 0 ; j--)
shekhar 0:e4162b2d1a79 156 {
shekhar 1:8b18c140a710 157 pc.printf("%d j \n", j);
shekhar 0:e4162b2d1a79 158 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,(j*2+1)))!= pow(2.0,(j*2+1)))
shekhar 0:e4162b2d1a79 159 {
shekhar 0:e4162b2d1a79 160 byte=0x00;
shekhar 0:e4162b2d1a79 161 }
shekhar 0:e4162b2d1a79 162 else
shekhar 0:e4162b2d1a79 163 {
shekhar 0:e4162b2d1a79 164 byte=0xF0;
shekhar 0:e4162b2d1a79 165 }
shekhar 0:e4162b2d1a79 166 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,j*2))!= pow(2.0,j*2))
shekhar 0:e4162b2d1a79 167 {
shekhar 0:e4162b2d1a79 168 byte=byte | 0x00;
shekhar 0:e4162b2d1a79 169 }
shekhar 0:e4162b2d1a79 170 else
shekhar 0:e4162b2d1a79 171 {
shekhar 0:e4162b2d1a79 172 byte=byte | 0x0F;
shekhar 0:e4162b2d1a79 173 }
shekhar 0:e4162b2d1a79 174 spi.write(byte);
shekhar 0:e4162b2d1a79 175 }
shekhar 0:e4162b2d1a79 176 }
shekhar 0:e4162b2d1a79 177
shekhar 0:e4162b2d1a79 178 cs = 1;
shekhar 1:8b18c140a710 179 pc.printf("line 177\n");
shekhar 0:e4162b2d1a79 180 //Set to Tx mode
shekhar 0:e4162b2d1a79 181 writereg(RF22_REG_07_OPERATING_MODE1,0x09);
shekhar 0:e4162b2d1a79 182
shekhar 0:e4162b2d1a79 183 //Check for fifoThresh
shekhar 0:e4162b2d1a79 184 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20);
shekhar 0:e4162b2d1a79 185 //pc.printf("fifothresh1?\n");
shekhar 1:8b18c140a710 186 pc.printf("line 184\n");
shekhar 0:e4162b2d1a79 187 //rf22.waitPacketSent();
shekhar 0:e4162b2d1a79 188 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) != 0x04);
shekhar 0:e4162b2d1a79 189 //pc.printf(" chk pkt sent!\r\n");
shekhar 0:e4162b2d1a79 190 pc.printf("Short packet sent\r\n");
shekhar 0:e4162b2d1a79 191 }
shekhar 0:e4162b2d1a79 192 void LONG_BCN_TX()
shekhar 0:e4162b2d1a79 193 {
shekhar 0:e4162b2d1a79 194 writereg(RF22_REG_6E_TX_DATA_RATE,0x04);
shekhar 0:e4162b2d1a79 195 writereg(RF22_REG_6F_TX_DATA_RATE,0xea);
shekhar 0:e4162b2d1a79 196 writereg(RF22_REG_3E_PACKET_LENGTH,LONG_TX_DATA); //long packet length
shekhar 0:e4162b2d1a79 197 wait(0.02); // pl. update this value or even avoid it!!!
shekhar 0:e4162b2d1a79 198 //extract values from long_beacon[]
shekhar 0:e4162b2d1a79 199
shekhar 0:e4162b2d1a79 200 //uint8_t Long_beacon[] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,Longbeacon.Voltage[0],Longbeacon.AngularSpeed[0], Longbeacon.AngularSpeed[1],Longbeacon.SubsystemStatus[0],Longbeacon.Temp[0],Longbeacon.Temp[1],Longbeacon.Temp[2],Longbeacon.ErrorFlag[0]};
shekhar 0:e4162b2d1a79 201
shekhar 0:e4162b2d1a79 202 uint8_t Long_beacon[75];
shekhar 0:e4162b2d1a79 203 for(int i = 0;i<75;i++)
shekhar 0:e4162b2d1a79 204 {
shekhar 0:e4162b2d1a79 205 Long_beacon[i] = 0xA0;
shekhar 0:e4162b2d1a79 206 }
shekhar 0:e4162b2d1a79 207
shekhar 0:e4162b2d1a79 208 //setModeIdle();
shekhar 0:e4162b2d1a79 209 writereg(RF22_REG_07_OPERATING_MODE1,0x01); //ready mode
shekhar 0:e4162b2d1a79 210 clearTxBuf();
shekhar 0:e4162b2d1a79 211 //writing data first time
shekhar 0:e4162b2d1a79 212 cs = 0;
shekhar 0:e4162b2d1a79 213 spi.write(0xFF);
shekhar 0:e4162b2d1a79 214 for(int i=0; i<60;i++)
shekhar 0:e4162b2d1a79 215 {
shekhar 0:e4162b2d1a79 216 spi.write(Long_beacon[i]);
shekhar 0:e4162b2d1a79 217 }
shekhar 0:e4162b2d1a79 218 cs = 1;
shekhar 0:e4162b2d1a79 219
shekhar 0:e4162b2d1a79 220 //Set to Tx mode
shekhar 0:e4162b2d1a79 221 writereg(RF22_REG_07_OPERATING_MODE1,0x09);
shekhar 0:e4162b2d1a79 222
shekhar 0:e4162b2d1a79 223 //Check for fifoThresh
shekhar 0:e4162b2d1a79 224 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20);
shekhar 0:e4162b2d1a79 225 //pc.printf("fifothresh1?\n");
shekhar 0:e4162b2d1a79 226 //writing data first time
shekhar 0:e4162b2d1a79 227 cs = 0;
shekhar 0:e4162b2d1a79 228 spi.write(0xFF);
shekhar 0:e4162b2d1a79 229 for(int i=60; i<75;i++)
shekhar 0:e4162b2d1a79 230 {
shekhar 0:e4162b2d1a79 231 spi.write(Long_beacon[i]);
shekhar 0:e4162b2d1a79 232 }
shekhar 0:e4162b2d1a79 233 cs = 1;
shekhar 0:e4162b2d1a79 234 wait(0.01);
shekhar 0:e4162b2d1a79 235 //Check for fifoThresh
shekhar 0:e4162b2d1a79 236 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20);
shekhar 0:e4162b2d1a79 237 //pc.printf("fifothresh2?\n");
shekhar 0:e4162b2d1a79 238 //rf22.waitPacketSent();
shekhar 0:e4162b2d1a79 239 while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) != 0x04);
shekhar 0:e4162b2d1a79 240 //pc.printf(" chk pkt sent!]\r\n");
shekhar 0:e4162b2d1a79 241 pc.printf("Long packet sent\r\n");
shekhar 0:e4162b2d1a79 242 }
shekhar 0:e4162b2d1a79 243
shekhar 0:e4162b2d1a79 244 void writereg(uint8_t reg,uint8_t val)
shekhar 0:e4162b2d1a79 245 {
shekhar 0:e4162b2d1a79 246 cs = 0;__disable_irq();spi.write(reg | 0x80);spi.write(val);__enable_irq();cs = 1;
shekhar 0:e4162b2d1a79 247 }
shekhar 0:e4162b2d1a79 248 uint8_t readreg(uint8_t reg)
shekhar 0:e4162b2d1a79 249 {
shekhar 0:e4162b2d1a79 250 int val;cs = 0;__disable_irq();spi.write(reg & ~0x80);val = spi.write(0);__enable_irq();cs = 1;return val;
shekhar 0:e4162b2d1a79 251 }
shekhar 0:e4162b2d1a79 252 void clearTxBuf()
shekhar 0:e4162b2d1a79 253 {
shekhar 0:e4162b2d1a79 254 writereg(RF22_REG_08_OPERATING_MODE2,0x01);
shekhar 0:e4162b2d1a79 255 writereg(RF22_REG_08_OPERATING_MODE2,0x00);
shekhar 0:e4162b2d1a79 256 }
shekhar 0:e4162b2d1a79 257 void clearRxBuf()
shekhar 0:e4162b2d1a79 258 {
shekhar 0:e4162b2d1a79 259 writereg(RF22_REG_08_OPERATING_MODE2,0x02);
shekhar 0:e4162b2d1a79 260 writereg(RF22_REG_08_OPERATING_MODE2,0x00);
shekhar 0:e4162b2d1a79 261 }
shekhar 0:e4162b2d1a79 262 int setFrequency(float centre,float afcPullInRange)
shekhar 0:e4162b2d1a79 263 {
shekhar 0:e4162b2d1a79 264 //freq setting begins
shekhar 0:e4162b2d1a79 265 uint8_t fbsel = 0x40;
shekhar 0:e4162b2d1a79 266 uint8_t afclimiter;
shekhar 0:e4162b2d1a79 267 if (centre >= 480.0)
shekhar 0:e4162b2d1a79 268 {
shekhar 0:e4162b2d1a79 269 centre /= 2;
shekhar 0:e4162b2d1a79 270 fbsel |= 0x20;
shekhar 0:e4162b2d1a79 271 afclimiter = afcPullInRange * 1000000.0 / 1250.0;
shekhar 0:e4162b2d1a79 272 }
shekhar 0:e4162b2d1a79 273 else
shekhar 0:e4162b2d1a79 274 {
shekhar 0:e4162b2d1a79 275 if (afcPullInRange < 0.0 || afcPullInRange > 0.159375)
shekhar 0:e4162b2d1a79 276 return false;
shekhar 0:e4162b2d1a79 277 afclimiter = afcPullInRange * 1000000.0 / 625.0;
shekhar 0:e4162b2d1a79 278 }
shekhar 0:e4162b2d1a79 279 centre /= 10.0;
shekhar 0:e4162b2d1a79 280 float integerPart = floor(centre);
shekhar 0:e4162b2d1a79 281 float fractionalPart = centre - integerPart;
shekhar 0:e4162b2d1a79 282
shekhar 0:e4162b2d1a79 283 uint8_t fb = (uint8_t)integerPart - 24; // Range 0 to 23
shekhar 0:e4162b2d1a79 284 fbsel |= fb;
shekhar 0:e4162b2d1a79 285 uint16_t fc = fractionalPart * 64000;
shekhar 0:e4162b2d1a79 286 writereg(RF22_REG_73_FREQUENCY_OFFSET1, 0); // REVISIT
shekhar 0:e4162b2d1a79 287 writereg(RF22_REG_74_FREQUENCY_OFFSET2, 0);
shekhar 0:e4162b2d1a79 288 writereg(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel);
shekhar 0:e4162b2d1a79 289 writereg(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8);
shekhar 0:e4162b2d1a79 290 writereg(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff);
shekhar 0:e4162b2d1a79 291 writereg(RF22_REG_2A_AFC_LIMITER, afclimiter);
shekhar 0:e4162b2d1a79 292 return 0;
shekhar 0:e4162b2d1a79 293 }
shekhar 0:e4162b2d1a79 294
shekhar 0:e4162b2d1a79 295 void Init_BEACON_HW()
shekhar 0:e4162b2d1a79 296 {
shekhar 0:e4162b2d1a79 297 cs=1; // chip must be deselected
shekhar 0:e4162b2d1a79 298 //wait(1); //change the time later
shekhar 0:e4162b2d1a79 299 spi.format(8,0);
shekhar 0:e4162b2d1a79 300 spi.frequency(10000000); //10MHz SCLK
shekhar 0:e4162b2d1a79 301
shekhar 0:e4162b2d1a79 302 //should either have a flag for invalid SPI or discard this for actual case or add reset
shekhar 0:e4162b2d1a79 303 if (readreg(RF22_REG_00_DEVICE_TYPE) == 0x08)
shekhar 0:e4162b2d1a79 304 pc.printf("spi connection valid\r\n");
shekhar 0:e4162b2d1a79 305 else
shekhar 0:e4162b2d1a79 306 pc.printf("error in spi connection\r\n");
shekhar 0:e4162b2d1a79 307 //reset()
shekhar 0:e4162b2d1a79 308
shekhar 0:e4162b2d1a79 309
shekhar 0:e4162b2d1a79 310 writereg(RF22_REG_07_OPERATING_MODE1,0x80); //sw_reset
shekhar 0:e4162b2d1a79 311 wait(1); //takes time to reset
shekhar 0:e4162b2d1a79 312
shekhar 0:e4162b2d1a79 313 clearTxBuf();
shekhar 0:e4162b2d1a79 314
shekhar 0:e4162b2d1a79 315 clearRxBuf();//may not be required
shekhar 0:e4162b2d1a79 316
shekhar 0:e4162b2d1a79 317 //txfifoalmostempty
shekhar 0:e4162b2d1a79 318 writereg(RF22_REG_7D_TX_FIFO_CONTROL2,10);
shekhar 0:e4162b2d1a79 319
shekhar 0:e4162b2d1a79 320 //Packet-engine registers
shekhar 0:e4162b2d1a79 321 writereg(RF22_REG_30_DATA_ACCESS_CONTROL,0x00); //RF22_REG_30_DATA_ACCESS_CONTROL, RF22_ENPACRX | RF22_ENPACTX | RF22_ENCRC | RF22_CRC_CRC_16_IBM
shekhar 0:e4162b2d1a79 322 //&0x77 = diasable packet rx-tx handling
shekhar 0:e4162b2d1a79 323
shekhar 0:e4162b2d1a79 324 writereg(RF22_REG_33_HEADER_CONTROL2,0x08); //RF22_REG_33_HEADER_CONTROL2, RF22_HDLEN_4 | RF22_SYNCLEN_2
shekhar 0:e4162b2d1a79 325 writereg(RF22_REG_34_PREAMBLE_LENGTH,0x00); //RF22_REG_34_PREAMBLE_LENGTH, nibbles); preamble length = 8;
shekhar 0:e4162b2d1a79 326 //may be redundant since packethandler is disabled
shekhar 0:e4162b2d1a79 327
shekhar 0:e4162b2d1a79 328 writereg(RF22_REG_0B_GPIO_CONFIGURATION0,0x15); // TX state ??
shekhar 0:e4162b2d1a79 329 writereg(RF22_REG_0C_GPIO_CONFIGURATION1,0x12); // RX state ??
shekhar 0:e4162b2d1a79 330
shekhar 0:e4162b2d1a79 331 //interrupts
shekhar 0:e4162b2d1a79 332 // spiWrite(RF22_REG_05_INTERRUPT_ENABLE1, RF22_ENTXFFAEM |RF22_ENRXFFAFULL | RF22_ENPKSENT |RF22_ENPKVALID| RF22_ENCRCERROR);
shekhar 0:e4162b2d1a79 333 // spiWrite(RF22_REG_06_INTERRUPT_ENABLE2, RF22_ENPREAVAL);
shekhar 0:e4162b2d1a79 334
shekhar 0:e4162b2d1a79 335 setFrequency(435.0, 0.05);
shekhar 0:e4162b2d1a79 336
shekhar 0:e4162b2d1a79 337 //This may not be required
shekhar 0:e4162b2d1a79 338 if((readreg(RF22_REG_02_DEVICE_STATUS)& 0x08)!= 0x00)
shekhar 0:e4162b2d1a79 339 pc.printf("frequency not set properly\r\n");
shekhar 0:e4162b2d1a79 340 //frequency set
shekhar 0:e4162b2d1a79 341
shekhar 0:e4162b2d1a79 342 //setModemConfig(FSK_Rb2_4Fd36); FSK_Rb2_4Fd36, ///< FSK, No Manchester, Rb = 2.4kbs, Fd = 36kHz
shekhar 0:e4162b2d1a79 343 //setmodemregisters
shekhar 0:e4162b2d1a79 344 //0x1b, 0x03, 0x41, 0x60, 0x27, 0x52, 0x00, 0x07, 0x40, 0x0a, 0x1e, 0x80, 0x60, 0x13, 0xa9, 0x2c, 0x22, 0x3a = FSK_RB2_4FD36
shekhar 0:e4162b2d1a79 345 //0xc8, 0x03, 0x39, 0x20, 0x68, 0xdc, 0x00, 0x6b, 0x2a, 0x08, 0x2a, 0x80, 0x60, 0x13, 0xa9, 0x2c, 0x21, 0x08 = OOK,2.4, 335
shekhar 0:e4162b2d1a79 346 writereg(RF22_REG_1C_IF_FILTER_BANDWIDTH,0xdf);
shekhar 0:e4162b2d1a79 347 writereg(RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE,0x03);
shekhar 0:e4162b2d1a79 348 writereg(RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE,0x39);
shekhar 0:e4162b2d1a79 349 writereg(RF22_REG_21_CLOCK_RECOVERY_OFFSET2,0x20);
shekhar 0:e4162b2d1a79 350 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:e4162b2d1a79 351 writereg(RF22_REG_23_CLOCK_RECOVERY_OFFSET0,0xdc);
shekhar 0:e4162b2d1a79 352 writereg(RF22_REG_24_CLOCK_RECOVERY_TIMING_LOOP_GAIN1,0x00);
shekhar 0:e4162b2d1a79 353 writereg(RF22_REG_25_CLOCK_RECOVERY_TIMING_LOOP_GAIN0,0x6B);
shekhar 0:e4162b2d1a79 354 writereg(RF22_REG_2C_OOK_COUNTER_VALUE_1,0x2C);
shekhar 0:e4162b2d1a79 355 writereg(RF22_REG_2D_OOK_COUNTER_VALUE_2,0x11); //not required for fsk (OOK counter value)
shekhar 0:e4162b2d1a79 356 writereg(RF22_REG_2E_SLICER_PEAK_HOLD,0x2A); //??
shekhar 0:e4162b2d1a79 357 writereg(RF22_REG_58,0x80);
shekhar 0:e4162b2d1a79 358 writereg(RF22_REG_69_AGC_OVERRIDE1,0x60);
shekhar 0:e4162b2d1a79 359
shekhar 0:e4162b2d1a79 360
shekhar 0:e4162b2d1a79 361 //writereg(RF22_REG_6E_TX_DATA_RATE_0.125_1,0x09);//written later
shekhar 0:e4162b2d1a79 362 //writereg(RF22_REG_6F_TX_DATA_RATE_0.125_0,0xd5);//written later
shekhar 0:e4162b2d1a79 363
shekhar 0:e4162b2d1a79 364 writereg(RF22_REG_70_MODULATION_CONTROL1,0x20);//changed from 0x2c to 0x20 since machester is not required
shekhar 0:e4162b2d1a79 365 writereg(RF22_REG_71_MODULATION_CONTROL2,0x21);//ook = 0x21 //fsk = 0x22
shekhar 0:e4162b2d1a79 366
shekhar 0:e4162b2d1a79 367 //writereg(RF22_REG_72_FREQUENCY_DEVIATION,0x50);
shekhar 0:e4162b2d1a79 368 //required for OOK???
shekhar 0:e4162b2d1a79 369
shekhar 0:e4162b2d1a79 370 //set tx power
shekhar 0:e4162b2d1a79 371 writereg(RF22_REG_6D_TX_POWER,0x07); //20dbm
shekhar 0:e4162b2d1a79 372 //why 0x06?? 0x07 is for max//is the previous bits required?
shekhar 0:e4162b2d1a79 373
shekhar 0:e4162b2d1a79 374 //writereg(RF22_REG_3E_PACKET_LENGTH,SHORT_TX_DATA); //short packet length //written later
shekhar 0:e4162b2d1a79 375 }
shekhar 0:e4162b2d1a79 376 bool Check_ACK_RECEIVED()
shekhar 0:e4162b2d1a79 377 {
shekhar 0:e4162b2d1a79 378 //logic:
shekhar 0:e4162b2d1a79 379 if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04) //bit is set if the data packet is sent correctly
shekhar 0:e4162b2d1a79 380 {
shekhar 0:e4162b2d1a79 381 printf("Packet sent: ACK received\r\n");
shekhar 0:e4162b2d1a79 382 return 1; //for ACK received: yes
shekhar 0:e4162b2d1a79 383
shekhar 0:e4162b2d1a79 384 }
shekhar 0:e4162b2d1a79 385 else
shekhar 0:e4162b2d1a79 386 {
shekhar 0:e4162b2d1a79 387 pc.printf("Packet not sent\r\n");
shekhar 0:e4162b2d1a79 388 return 0; //actual value
shekhar 0:e4162b2d1a79 389 //return 1; //to make this function work in any condition //Why??
shekhar 0:e4162b2d1a79 390
shekhar 0:e4162b2d1a79 391 }
shekhar 0:e4162b2d1a79 392 }
shekhar 0:e4162b2d1a79 393 int main()
shekhar 0:e4162b2d1a79 394 {
shekhar 1:8b18c140a710 395
shekhar 1:8b18c140a710 396 pc.printf("entered main");
shekhar 1:8b18c140a710 397 int temp, final_temp;
shekhar 0:e4162b2d1a79 398
shekhar 0:e4162b2d1a79 399 P_BCN_INIT();
shekhar 1:8b18c140a710 400 pc.printf("completed bcn_init");
shekhar 1:8b18c140a710 401
shekhar 1:8b18c140a710 402 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
shekhar 0:e4162b2d1a79 403
shekhar 0:e4162b2d1a79 404 t.start();
shekhar 0:e4162b2d1a79 405
shekhar 1:8b18c140a710 406 //loop.attach(&P_BCN_TX_MAIN, 10.0);
shekhar 1:8b18c140a710 407 pc.printf("loop_attached");
shekhar 1:8b18c140a710 408
shekhar 0:e4162b2d1a79 409
shekhar 0:e4162b2d1a79 410 while (t.read() < RF_SILENCE_TIME);
shekhar 0:e4162b2d1a79 411
shekhar 0:e4162b2d1a79 412 P_BCN_FEN();
shekhar 0:e4162b2d1a79 413
shekhar 1:8b18c140a710 414 P_BCN_TX_MAIN();
shekhar 1:8b18c140a710 415
shekhar 0:e4162b2d1a79 416 t.stop();
shekhar 1:8b18c140a710 417 while(1)
shekhar 1:8b18c140a710 418 {
shekhar 0:e4162b2d1a79 419
shekhar 1:8b18c140a710 420 temp = check_Temperature();
shekhar 1:8b18c140a710 421 final_temp = (float)temp*0.5 - 64;
shekhar 1:8b18c140a710 422 pc.printf("final temp = %d\r\n", final_temp);}
shekhar 0:e4162b2d1a79 423 //while(1)
shekhar 0:e4162b2d1a79 424 // {
shekhar 0:e4162b2d1a79 425 // temp = check_Temperature();
shekhar 0:e4162b2d1a79 426 // final_temp = (float)temp*0.5 - 64;
shekhar 0:e4162b2d1a79 427 // pc.printf("Temperature: %d\r\n", final_temp);
shekhar 0:e4162b2d1a79 428 // wait(900); //15 minutes
shekhar 0:e4162b2d1a79 429 // }
shekhar 0:e4162b2d1a79 430 while(1)
shekhar 0:e4162b2d1a79 431 {
shekhar 0:e4162b2d1a79 432
shekhar 1:8b18c140a710 433 //pc.printf("%d\n",BCN_TS_BUFFER);
shekhar 0:e4162b2d1a79 434 //display statuses or wait
shekhar 0:e4162b2d1a79 435
shekhar 0:e4162b2d1a79 436 //BCN_INIT_STATUS
shekhar 0:e4162b2d1a79 437 //BCN_TX_MAIN_STATUS
shekhar 0:e4162b2d1a79 438 //BCN_TX_STATUS
shekhar 0:e4162b2d1a79 439 //BCN_TX_EN
shekhar 0:e4162b2d1a79 440 //BCN_FEN
shekhar 0:e4162b2d1a79 441 //BCN_STANDBY
shekhar 0:e4162b2d1a79 442 }
shekhar 0:e4162b2d1a79 443
shekhar 0:e4162b2d1a79 444 }