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Dependencies:   FreescaleIAP mbed-rtos mbed

Fork of BAE_CODE_MARCH_2017 by Team Fox

BCN.cpp@47:d59ba66229ce, 2016-07-07 (annotated)

Committer:
lakshya
Date:
Thu Jul 07 14:34:00 2016 +0000
Revision:
47:d59ba66229ce
Parent:
39:670133e7ffd8
Child:
49:61c9f28332ba
edited stage1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lakshya 20:949d13045431 1 #include "BCN.h"
lakshya 33:76f2b8735501 2 #include "EPS.h"
lakshya 20:949d13045431 3 #include <stdio.h>
lakshya 20:949d13045431 4 #include "pin_config.h"
lakshya 20:949d13045431 5 //Check the pin names
lakshya 27:61c856be467e 6 //Takes max 4 sec in void FCTN_BCN_TX_MAIN() (temp.calc. + long_beacon + short_beacon)
lakshya 20:949d13045431 7
lakshya 20:949d13045431 8 Serial pc_bcn(USBTX, USBRX); //tx,rx
lakshya 47:d59ba66229ce 9 //SPI spi(D11, D12, D13); // mosi, miso, sclk
lakshya 47:d59ba66229ce 10 //DigitalOut cs(D10); //slave select or chip select
lakshya 47:d59ba66229ce 11 SPI spi(PIN16, PIN17, PIN15); // mosi, miso, sclk
lakshya 47:d59ba66229ce 12 DigitalOut cs(PIN6); //slave select or chip select
lakshya 20:949d13045431 13 Timer t_i;//timer for checking the time taken by (temp.calc. + long_beacon + short_beacon)
lakshya 20:949d13045431 14 //Timer t_is;//timer for short_beacon
lakshya 20:949d13045431 15 //Timer t_il;//timer for long_beacon
lakshya 20:949d13045431 16 Timeout rf_sl_timeout;//RF_silence timer
lakshya 20:949d13045431 17 Ticker loop;//for transmitting every 10 secs
lakshya 20:949d13045431 18
lakshya 20:949d13045431 19 //GLOBAL VARIABLES
lakshya 20:949d13045431 20 uint8_t BCN_INIT_STATUS = 0;
lakshya 20:949d13045431 21 uint8_t BCN_TX_MAIN_STATUS = 0;
lakshya 20:949d13045431 22 uint8_t BCN_TX_STATUS = 0;
lakshya 20:949d13045431 23 uint8_t BCN_TX_ENABLE = 1; //hardcoding for now //check where is this variable toggled??
lakshya 20:949d13045431 24 uint8_t BCN_TX_SW_STATUS = 1;
lakshya 20:949d13045431 25 uint8_t BCN_FEN = 0; //hardcoding for now //write this value to flash
lakshya 20:949d13045431 26 uint8_t BCN_SPND_TX = 0; //hardcoding for now //check where is this variable toggled??
lakshya 20:949d13045431 27 uint8_t BCN_TMP = 0; // For Temperature
lakshya 20:949d13045431 28 uint8_t ERROR_CHECK = 0;
lakshya 20:949d13045431 29 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)
lakshya 20:949d13045431 30 //This Flag when exceeds a threshold, uC should reset.
lakshya 20:949d13045431 31 uint16_t BCN_TX_MAIN_COUNTER = 0;
lakshya 33:76f2b8735501 32 uint8_t SHORT_HK_data[15];
lakshya 33:76f2b8735501 33 extern uint8_t BCN_LONG_MSG_TYPE;
lakshya 33:76f2b8735501 34 extern uint8_t LONG_HK_data[2][134];
lakshya 47:d59ba66229ce 35 extern DigitalOut BCN_SW;
lakshya 33:76f2b8735501 36 extern float EPS_BTRY_TMP_AVG;
lakshya 33:76f2b8735501 37
lakshya 33:76f2b8735501 38 extern BAE_HK_quant quant_data;
lakshya 33:76f2b8735501 39 extern uint8_t BAE_RESET_COUNTER;
lakshya 33:76f2b8735501 40 extern Timer BAE_uptime;
lakshya 33:76f2b8735501 41 extern Timer I2C_last;
lakshya 33:76f2b8735501 42 extern void RETURN_UPTIME(float,uint8_t*,uint8_t*,uint8_t*);
lakshya 47:d59ba66229ce 43 extern DigitalIn CDMS_OC_FAULT;
lakshya 47:d59ba66229ce 44 extern DigitalIn EPS_CHARGER_STATUS;
lakshya 33:76f2b8735501 45 extern uint8_t crc8_short();
lakshya 33:76f2b8735501 46
lakshya 33:76f2b8735501 47 void SHORT_HK_data_AQ()
lakshya 33:76f2b8735501 48 {
lakshya 33:76f2b8735501 49 uint8_t days,hours,mins;//for calculating the timing data in bae i2c uptime
lakshya 33:76f2b8735501 50
lakshya 33:76f2b8735501 51 //1st 0-7 call sign
lakshya 33:76f2b8735501 52 //SHORT_HK_data[0] _ SHORT_HK_data[6]
lakshya 33:76f2b8735501 53
lakshya 33:76f2b8735501 54 SHORT_HK_data[7] = quant_data.voltage_quant[15];
lakshya 33:76f2b8735501 55 SHORT_HK_data[7] = (SHORT_HK_data[7] & 0xF0) | (quant_data.current_quant[1]>>4);
lakshya 33:76f2b8735501 56 //braga SHORT_HK_data[8] = acs first 4 bit
lakshya 33:76f2b8735501 57 SHORT_HK_data[8] = (SHORT_HK_data[8] & 0xF0) | BCN_TMP>>4;
lakshya 33:76f2b8735501 58 //SHORT_HK_data[9] = float_to_uint8(min,max,EPS_BTRY_TMP_AVG); min max diss azad
lakshya 33:76f2b8735501 59 SHORT_HK_data[9] = (SHORT_HK_data[9]&0xF0) | BAE_RESET_COUNTER>>4;
lakshya 33:76f2b8735501 60
lakshya 33:76f2b8735501 61 RETURN_UPTIME(BAE_uptime.read(),&days,&hours,&mins);
lakshya 33:76f2b8735501 62 SHORT_HK_data[10] = CDMS_OC_FAULT;
lakshya 33:76f2b8735501 63 //SHORT_HK_data[10] = (1<<SHORT_HK_data[10]) | receiver_oc_fault//to be diss;
lakshya 33:76f2b8735501 64 SHORT_HK_data[10] = (SHORT_HK_data[10]<<1) | ((quant_data.voltage_quant[12]>>2)&0x3C);
lakshya 33:76f2b8735501 65 SHORT_HK_data[10] = (SHORT_HK_data[10]<<2) | ((days>>3)&0x03);
lakshya 33:76f2b8735501 66 SHORT_HK_data[11] = (days<<5) | (hours&0x1F);
lakshya 33:76f2b8735501 67
lakshya 33:76f2b8735501 68 RETURN_UPTIME(I2C_last.read(),&days,&hours,&mins);
lakshya 33:76f2b8735501 69 SHORT_HK_data[12] = EPS_CHARGER_STATUS;
lakshya 33:76f2b8735501 70 SHORT_HK_data[12] = (SHORT_HK_data[12]<<4) | (quant_data.voltage_quant[13]>>4);
lakshya 33:76f2b8735501 71 SHORT_HK_data[12] = (SHORT_HK_data[12]<<3) | (days>>2);
lakshya 33:76f2b8735501 72 SHORT_HK_data[13] = (days<<6) | (mins&0x3F);
lakshya 33:76f2b8735501 73
lakshya 33:76f2b8735501 74 SHORT_HK_data[14] = crc8_short();
lakshya 33:76f2b8735501 75 }
lakshya 20:949d13045431 76
lakshya 20:949d13045431 77 void FCTN_BCN_INIT()
lakshya 20:949d13045431 78 {
lakshya 20:949d13045431 79 pc_bcn.printf("FCTN_BCN_INIT\n");
lakshya 20:949d13045431 80 BCN_INIT_STATUS = 1;
lakshya 33:76f2b8735501 81 if( BCN_TX_SW_STATUS == 0b00000001)
lakshya 20:949d13045431 82 Init_BEACON_HW();
lakshya 20:949d13045431 83 else Set_BCN_TX_STATUS(BCN_TX_DISABLED);
lakshya 33:76f2b8735501 84 // if(BCN_FEN == 0)//BCN_FEN is in flash
lakshya 33:76f2b8735501 85 // rf_sl_timeout.attach(&FCTN_BCN_FEN, RF_SILENCE_TIME);
lakshya 20:949d13045431 86 BCN_INIT_STATUS = 0;
lakshya 20:949d13045431 87 }
lakshya 20:949d13045431 88
lakshya 20:949d13045431 89 extern uint32_t FCTN_BAE_RD_FLASH_ENTITY(uint16_t);
lakshya 20:949d13045431 90 extern void FCTN_BAE_WR_FLASH(uint16_t ,uint32_t );
lakshya 20:949d13045431 91
lakshya 20:949d13045431 92 void FCTN_BCN_FEN(const void*)
lakshya 20:949d13045431 93 {
lakshya 20:949d13045431 94 pc_bcn.printf("FCTN_FEN\n\r");
lakshya 20:949d13045431 95 BCN_FEN = 1;//write this value to flash
lakshya 20:949d13045431 96 uint32_t FLASH_DATA;
lakshya 20:949d13045431 97 FLASH_DATA = FCTN_BAE_RD_FLASH_ENTITY(0);
lakshya 27:61c856be467e 98 FLASH_DATA = (FLASH_DATA | 0x00000800);//see if uint8 to uint32 conversion works
lakshya 20:949d13045431 99 FCTN_BAE_WR_FLASH(0,FLASH_DATA);
lakshya 20:949d13045431 100 }
lakshya 20:949d13045431 101 void FCTN_BCN_TX_MAIN()
lakshya 20:949d13045431 102 {
lakshya 20:949d13045431 103 ERROR_CHECK=0;
lakshya 20:949d13045431 104 pc_bcn.printf("\n\nFCTN_BCN_TX_MAIN\n\r");
lakshya 20:949d13045431 105 t_i.start();
lakshya 20:949d13045431 106 int begin = t_i.read_us();
lakshya 20:949d13045431 107 //int begins,beginl,endl;
lakshya 20:949d13045431 108 int begintx,endtx;
lakshya 20:949d13045431 109 BCN_TX_MAIN_STATUS = 1;
lakshya 20:949d13045431 110 BCN_TX_MAIN_COUNTER++;
lakshya 20:949d13045431 111 if(BCN_FEN == 1)
lakshya 20:949d13045431 112 {
lakshya 20:949d13045431 113 if(BCN_TX_SW_STATUS == 0b00000001)
lakshya 20:949d13045431 114 {
lakshya 33:76f2b8735501 115 Init_BEACON_HW();
lakshya 33:76f2b8735501 116 if( BCN_TX_STATUS == BCN_INIT_SUCCESS )
lakshya 20:949d13045431 117 {
lakshya 47:d59ba66229ce 118 pc_bcn.printf("\n\r transmitting");
lakshya 33:76f2b8735501 119 //Measure and store BCN temperature in BCN_TS_BUFFER
lakshya 33:76f2b8735501 120 uint8_t temp_temp = check_Temperature();
lakshya 33:76f2b8735501 121 if( temp_temp != 0xFF )
lakshya 33:76f2b8735501 122 BCN_TMP = temp_temp;
lakshya 33:76f2b8735501 123 pc_bcn.printf("temperature = %d\n\r",BCN_TMP);
lakshya 33:76f2b8735501 124 //Get BCN_HK data from BCN HW(SPI) //Store BCN_HK data in BCN_HK_BUFFER
lakshya 33:76f2b8735501 125 if(BCN_SPND_TX == 1 )
lakshya 33:76f2b8735501 126 {
lakshya 33:76f2b8735501 127 Set_BCN_TX_STATUS(BCN_TX_SUSPENDED);
lakshya 33:76f2b8735501 128 BCN_TX_MAIN_STATUS = 0;
lakshya 33:76f2b8735501 129 }
lakshya 33:76f2b8735501 130 else
lakshya 33:76f2b8735501 131 {
lakshya 20:949d13045431 132 //transmit short beacon and long beacon
lakshya 20:949d13045431 133 begintx = t_i.read_us();
lakshya 20:949d13045431 134 BCN_TX();
lakshya 20:949d13045431 135 endtx = t_i.read_us();
lakshya 33:76f2b8735501 136
lakshya 20:949d13045431 137 if(Check_ACK_RECEIVED() == 1)
lakshya 20:949d13045431 138 {
lakshya 20:949d13045431 139 Set_BCN_TX_STATUS(BCN_TX_SUCCESS);
lakshya 20:949d13045431 140 BCN_TX_MAIN_STATUS = 0;
lakshya 20:949d13045431 141 }
lakshya 20:949d13045431 142 else
lakshya 20:949d13045431 143 {
lakshya 33:76f2b8735501 144 Set_BCN_TX_STATUS(BCN_TX_FAILURE);
lakshya 33:76f2b8735501 145 //BCN_FAIL_COUNT++;
lakshya 33:76f2b8735501 146 //Init_BEACON_HW();
lakshya 20:949d13045431 147 BCN_TX_MAIN_STATUS = 0;
lakshya 33:76f2b8735501 148
lakshya 20:949d13045431 149 }
lakshya 33:76f2b8735501 150 }
lakshya 33:76f2b8735501 151 }
lakshya 20:949d13045431 152 }
lakshya 20:949d13045431 153 else
lakshya 20:949d13045431 154 {
lakshya 20:949d13045431 155 Set_BCN_TX_STATUS(BCN_TX_DISABLED);
lakshya 20:949d13045431 156 BCN_TX_MAIN_STATUS = 0;
lakshya 20:949d13045431 157 }
lakshya 20:949d13045431 158 }
lakshya 20:949d13045431 159 else
lakshya 20:949d13045431 160 {
lakshya 20:949d13045431 161 Set_BCN_TX_STATUS(BCN_RF_SILENCE); //Window of RF Silence: None of the Txs should be on.
lakshya 20:949d13045431 162 BCN_TX_MAIN_STATUS = 0;
lakshya 20:949d13045431 163 }
lakshya 20:949d13045431 164 t_i.stop();
lakshya 20:949d13045431 165 int end = t_i.read_us();
lakshya 20:949d13045431 166 pc_bcn.printf("The time required for FCTN_BCN_TX_MAIN is %d useconds\r\n", end-begin);
lakshya 20:949d13045431 167 pc_bcn.printf("The time required for FCTN_BCN_TX is %d useconds\r\n", endtx-begintx);
lakshya 20:949d13045431 168 /*
lakshya 20:949d13045431 169 pc_bcn.printf("The time required for Short_BCN is %d useconds\r\n", beginl-begins);
lakshya 20:949d13045431 170 pc_bcn.printf("The time required for Long_BCN is %d useconds\r\n", endtx-beginl);
lakshya 20:949d13045431 171 */
lakshya 20:949d13045431 172 ERROR_CHECK = 0;
lakshya 20:949d13045431 173
lakshya 20:949d13045431 174 }
lakshya 20:949d13045431 175
lakshya 20:949d13045431 176 void Set_BCN_TX_STATUS(uint8_t STATUS)
lakshya 20:949d13045431 177 {
lakshya 20:949d13045431 178 BCN_TX_STATUS = STATUS;
lakshya 20:949d13045431 179 }
lakshya 20:949d13045431 180
lakshya 20:949d13045431 181 uint8_t check_Temperature()
lakshya 20:949d13045431 182 {
lakshya 20:949d13045431 183 uint8_t temperature;
lakshya 20:949d13045431 184 writereg(RF22_REG_0F_ADC_CONFIGURATION,0x00);//set ADC to temp measurement
lakshya 33:76f2b8735501 185 writereg(RF22_REG_12_Temperature_Sensor_Calibration,0x60);//measure in degree celsius
lakshya 20:949d13045431 186 writereg(RF22_REG_0F_ADC_CONFIGURATION,0x80);//start adc
lakshya 20:949d13045431 187 wait(0.1);
lakshya 33:76f2b8735501 188 if( readreg(RF22_REG_0F_ADC_CONFIGURATION) & 0x80 == 0x00 )
lakshya 33:76f2b8735501 189 {
lakshya 33:76f2b8735501 190 temperature = readreg(RF22_REG_11_ADC_Value);
lakshya 33:76f2b8735501 191 temperature = (float)temperature - 64; //* 0.5 factor
lakshya 33:76f2b8735501 192 }
lakshya 33:76f2b8735501 193 else temperature = 0xFF;
lakshya 33:76f2b8735501 194 // temperature = (float)temperature*0.5 - 64;
lakshya 20:949d13045431 195 return temperature;
lakshya 20:949d13045431 196 }
lakshya 33:76f2b8735501 197
lakshya 33:76f2b8735501 198 uint32_t timeout_count;
lakshya 20:949d13045431 199 void BCN_TX()
lakshya 20:949d13045431 200 {
lakshya 20:949d13045431 201 printf("BCN_TX\n\r");
lakshya 20:949d13045431 202 writereg(RF22_REG_6E_TX_DATA_RATE,0x0A);
lakshya 20:949d13045431 203 writereg(RF22_REG_6F_TX_DATA_RATE,0x7C);//1280bps
lakshya 20:949d13045431 204
lakshya 20:949d13045431 205 wait(0.02);
lakshya 20:949d13045431 206
lakshya 33:76f2b8735501 207 timeout_count = 10e5;
lakshya 20:949d13045431 208 //extract values from short_beacon[]
lakshya 33:76f2b8735501 209 /*
lakshya 20:949d13045431 210 uint8_t Long_beacon[LONG_TX_DATA];
lakshya 20:949d13045431 211 for(int i = 0;i<LONG_TX_DATA;i++)
lakshya 20:949d13045431 212 {
lakshya 20:949d13045431 213 Long_beacon[i] = 0xFF;
lakshya 20:949d13045431 214 }
lakshya 20:949d13045431 215
lakshya 20:949d13045431 216 struct Short_beacon
lakshya 20:949d13045431 217 {
lakshya 20:949d13045431 218 uint8_t Voltage[1];
lakshya 20:949d13045431 219 uint8_t AngularSpeed[2];
lakshya 20:949d13045431 220 uint8_t SubsystemStatus[1];
lakshya 20:949d13045431 221 uint8_t Temp[3];
lakshya 20:949d13045431 222 uint8_t ErrorFlag[1];
lakshya 20:949d13045431 223 }Shortbeacon = { {0xFF}, {0xFF, 0xFF} , {0xFF},{0xFF,0xFF,0xFF}, {0xFF} };
lakshya 20:949d13045431 224
lakshya 20:949d13045431 225 //filling hk data
lakshya 20:949d13045431 226 //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]};
lakshya 20:949d13045431 227 uint8_t short_beacon[] = { 0xF3, 0x02, 0xFA, 0xC6, 0xD4, 0x28, 0x8A,Shortbeacon.Voltage[0],Shortbeacon.AngularSpeed[0], Shortbeacon.AngularSpeed[1],Shortbeacon.SubsystemStatus[0],Shortbeacon.Temp[0],Shortbeacon.Temp[1],Shortbeacon.Temp[2],Shortbeacon.ErrorFlag[0]};
lakshya 20:949d13045431 228
lakshya 20:949d13045431 229 //writereg(RF22_REG_07_OPERATING_MODE1,0x01); //ready mode ??
lakshya 33:76f2b8735501 230 */
lakshya 20:949d13045431 231 clearTxBuf(); //writing data first time
lakshya 20:949d13045431 232
lakshya 33:76f2b8735501 233 int byte_counter;
lakshya 20:949d13045431 234 uint8_t onebyte[4] = {0x81,0xA6,0xBE,0x4E};
lakshya 20:949d13045431 235 uint8_t zerobyte[4] = {0x7E,0x59,0x41,0xB1};
lakshya 20:949d13045431 236 for (byte_counter = 0; byte_counter <15 ; byte_counter++)
lakshya 20:949d13045431 237 {
lakshya 20:949d13045431 238 for(int j = 7; j >= 0 ; j--)
lakshya 20:949d13045431 239 {
lakshya 20:949d13045431 240 cs = 0;
lakshya 20:949d13045431 241 spi.write(0xFF);
lakshya 33:76f2b8735501 242 if((SHORT_HK_data[byte_counter] & (uint8_t) pow(2.0,j))!= pow(2.0,j))
lakshya 20:949d13045431 243 {
lakshya 20:949d13045431 244 //byte=0x00;
lakshya 20:949d13045431 245 spi.write(zerobyte[0]);
lakshya 20:949d13045431 246 spi.write(zerobyte[1]);
lakshya 20:949d13045431 247 spi.write(zerobyte[2]);
lakshya 20:949d13045431 248 spi.write(zerobyte[3]);
lakshya 20:949d13045431 249 }
lakshya 20:949d13045431 250 else
lakshya 20:949d13045431 251 {
lakshya 20:949d13045431 252 //byte=0xFF;
lakshya 20:949d13045431 253 spi.write(onebyte[0]);
lakshya 20:949d13045431 254 spi.write(onebyte[1]);
lakshya 20:949d13045431 255 spi.write(onebyte[2]);
lakshya 20:949d13045431 256 spi.write(onebyte[3]);
lakshya 20:949d13045431 257 }
lakshya 20:949d13045431 258 cs = 1;
lakshya 20:949d13045431 259 /*
lakshya 20:949d13045431 260 spi.write(byte);
lakshya 20:949d13045431 261 spi.write(byte);
lakshya 20:949d13045431 262 spi.write(byte);
lakshya 20:949d13045431 263 spi.write(byte); //Each bit is written 32 times
lakshya 20:949d13045431 264 */
lakshya 33:76f2b8735501 265 // byte_count+=4;
lakshya 20:949d13045431 266
lakshya 20:949d13045431 267 }
lakshya 20:949d13045431 268
lakshya 20:949d13045431 269 if(byte_counter == 1)
lakshya 33:76f2b8735501 270 if(BCN_SPND_TX != 1) //Check for flag update by COM
lakshya 33:76f2b8735501 271 {
lakshya 33:76f2b8735501 272 //Set to Tx mode
lakshya 33:76f2b8735501 273 writereg(RF22_REG_07_OPERATING_MODE1,0x08); //txon
lakshya 33:76f2b8735501 274 wait(0.1);// takes time to set to tx mode hence the delay of 0.1.
lakshya 33:76f2b8735501 275 }
lakshya 33:76f2b8735501 276
lakshya 20:949d13045431 277 //testing level
lakshya 20:949d13045431 278 /*if(byte_counter > 0)
lakshya 20:949d13045431 279 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x40) == 0x00)break;else
lakshya 20:949d13045431 280 {
lakshya 20:949d13045431 281 pc_bcn.printf("w_f_empty1\n\r");
lakshya 20:949d13045431 282 //reset_rfm(1);
lakshya 20:949d13045431 283 }*/
lakshya 20:949d13045431 284
lakshya 20:949d13045431 285
lakshya 20:949d13045431 286 //Check for fifoThresh
lakshya 20:949d13045431 287
lakshya 20:949d13045431 288 if(byte_counter > 0)
lakshya 20:949d13045431 289 {
lakshya 33:76f2b8735501 290 wait_ms(25);
lakshya 33:76f2b8735501 291 while( timeout_count --)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 33:76f2b8735501 292 {
lakshya 33:76f2b8735501 293 //pc_bcn.printf("w_f_empty\n");
lakshya 33:76f2b8735501 294 //reset_rfm(1);
lakshya 33:76f2b8735501 295 }
lakshya 33:76f2b8735501 296 timeout_count = 10e5;
lakshya 20:949d13045431 297 }
lakshya 20:949d13045431 298
lakshya 20:949d13045431 299 /* if(byte_counter%2==0 && byte_counter)
lakshya 20:949d13045431 300 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x40) == 0x00)break;else
lakshya 20:949d13045431 301 {
lakshya 20:949d13045431 302 pc_bcn.printf("W = %d\r\n",byte_counter);
lakshya 20:949d13045431 303 }*/
lakshya 20:949d13045431 304 //pc_bcn.printf("W = %d\r\n",byte_counter);
lakshya 20:949d13045431 305 }
lakshya 20:949d13045431 306
lakshya 33:76f2b8735501 307 for(byte_counter = 15;byte_counter<149;byte_counter++)
lakshya 20:949d13045431 308 {
lakshya 20:949d13045431 309 cs = 0;
lakshya 20:949d13045431 310 spi.write(0xFF);
lakshya 33:76f2b8735501 311 spi.write(LONG_HK_data[BCN_LONG_MSG_TYPE][byte_counter-15]);
lakshya 20:949d13045431 312 cs = 1;
lakshya 20:949d13045431 313
lakshya 20:949d13045431 314 if((byte_counter-15)%32==0)
lakshya 20:949d13045431 315 { //Check for fifoThresh
lakshya 20:949d13045431 316 wait_ms(25);
lakshya 33:76f2b8735501 317 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 20:949d13045431 318 {
lakshya 20:949d13045431 319 //pc_bcn.printf("Reset\n");
lakshya 20:949d13045431 320 //reset_rfm(1);
lakshya 20:949d13045431 321 }
lakshya 20:949d13045431 322 }
lakshya 20:949d13045431 323
lakshya 20:949d13045431 324 }
lakshya 20:949d13045431 325 wait_ms(70);
lakshya 20:949d13045431 326 //Check for fifoThresh
lakshya 33:76f2b8735501 327 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x40) == 0x00)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 20:949d13045431 328 {
lakshya 20:949d13045431 329 pc_bcn.printf("Waiting for fifo to empty\r\n");
lakshya 20:949d13045431 330 }
lakshya 20:949d13045431 331
lakshya 20:949d13045431 332 //Check for packetsent interrupt
lakshya 20:949d13045431 333 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 20:949d13045431 334
lakshya 20:949d13045431 335 //pc_bcn.printf("Short packet sent, bytes written = %d\r\n",byte_count);
lakshya 20:949d13045431 336
lakshya 20:949d13045431 337 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
lakshya 20:949d13045431 338
lakshya 20:949d13045431 339 }
lakshya 20:949d13045431 340 #if 0
lakshya 20:949d13045431 341 void LONG_BCN_TX()
lakshya 20:949d13045431 342 {
lakshya 20:949d13045431 343 /*
lakshya 20:949d13045431 344 writereg(RF22_REG_6E_TX_DATA_RATE,0x04);
lakshya 20:949d13045431 345 writereg(RF22_REG_6F_TX_DATA_RATE,0xEA);//600 bps
lakshya 20:949d13045431 346 */
lakshya 20:949d13045431 347 writereg(RF22_REG_3E_PACKET_LENGTH,LONG_TX_DATA); //long packet length
lakshya 20:949d13045431 348 wait(0.02);
lakshya 20:949d13045431 349 uint32_t timeout_count=10e5;
lakshya 20:949d13045431 350
lakshya 20:949d13045431 351 //get long_beacon array
lakshya 20:949d13045431 352
lakshya 20:949d13045431 353 uint8_t Long_beacon[LONG_TX_DATA];
lakshya 20:949d13045431 354 for(int i = 0;i<LONG_TX_DATA;i++)
lakshya 20:949d13045431 355 {
lakshya 20:949d13045431 356 Long_beacon[i] = 0xFF;
lakshya 20:949d13045431 357 }
lakshya 20:949d13045431 358
lakshya 20:949d13045431 359 clearTxBuf();
lakshya 20:949d13045431 360 //writing data first time
lakshya 20:949d13045431 361 cs = 0;
lakshya 20:949d13045431 362 spi.write(0xFF);
lakshya 20:949d13045431 363 for(int i=0; i<64;i++)
lakshya 20:949d13045431 364 {
lakshya 20:949d13045431 365 spi.write(Long_beacon[i]);
lakshya 20:949d13045431 366 }
lakshya 20:949d13045431 367 cs = 1;
lakshya 20:949d13045431 368
lakshya 20:949d13045431 369 //Set to Tx mode
lakshya 20:949d13045431 370 writereg(RF22_REG_07_OPERATING_MODE1,0x08);
lakshya 20:949d13045431 371 wait(0.1);//necessary
lakshya 20:949d13045431 372
lakshya 20:949d13045431 373 //Check for fifoThresh
lakshya 20:949d13045431 374 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1)
lakshya 20:949d13045431 375 {
lakshya 20:949d13045431 376 pc_bcn.printf("Reset\n");
lakshya 20:949d13045431 377 reset_rfm(1);
lakshya 20:949d13045431 378 }
lakshya 20:949d13045431 379 timeout_count=10e5;
lakshya 20:949d13045431 380
lakshya 20:949d13045431 381 cs = 0;
lakshya 20:949d13045431 382 spi.write(0xFF);
lakshya 20:949d13045431 383 for(int i=64; i<127;i++)
lakshya 20:949d13045431 384 {
lakshya 20:949d13045431 385 spi.write(Long_beacon[i]);
lakshya 20:949d13045431 386 }
lakshya 20:949d13045431 387 cs = 1;
lakshya 20:949d13045431 388 wait(0.1);
lakshya 20:949d13045431 389 //Check for fifoThresh
lakshya 20:949d13045431 390 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1)
lakshya 20:949d13045431 391 {
lakshya 20:949d13045431 392 pc_bcn.printf("Reset\n");
lakshya 20:949d13045431 393 reset_rfm(1);}
lakshya 20:949d13045431 394 timeout_count=10e5;
lakshya 20:949d13045431 395
lakshya 20:949d13045431 396 //Check for packetsent interrupt
lakshya 20:949d13045431 397 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 20:949d13045431 398
lakshya 20:949d13045431 399 //pc_bcn.printf("Long packet sent\r\n");
lakshya 20:949d13045431 400
lakshya 20:949d13045431 401 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
lakshya 20:949d13045431 402 }
lakshya 20:949d13045431 403 #endif
lakshya 20:949d13045431 404 void reset_rfm(uint8_t fl)
lakshya 20:949d13045431 405 {
lakshya 20:949d13045431 406 if (fl ==1 && ERROR_CHECK ==0)
lakshya 20:949d13045431 407 { BCN_FAIL_COUNT++;
lakshya 20:949d13045431 408 ERROR_CHECK=1;
lakshya 20:949d13045431 409 printf("BCN_FAIL_COUNT++\n");
lakshya 20:949d13045431 410 }
lakshya 20:949d13045431 411 else if(fl == 0)
lakshya 20:949d13045431 412 {
lakshya 20:949d13045431 413 BCN_FAIL_COUNT = 0;
lakshya 20:949d13045431 414 ERROR_CHECK=0;
lakshya 20:949d13045431 415 }
lakshya 20:949d13045431 416 }
lakshya 20:949d13045431 417 void writereg(uint8_t reg,uint8_t val)
lakshya 20:949d13045431 418 {
lakshya 20:949d13045431 419
lakshya 20:949d13045431 420 uint8_t count = 0;
lakshya 20:949d13045431 421 for(;;count++)
lakshya 20:949d13045431 422 {
lakshya 20:949d13045431 423 int read_val =0; cs = 0;spi.write(reg | 0x80);spi.write(val);cs = 1;
lakshya 20:949d13045431 424 if(reg != 0x7 && reg != 0x58 && reg != 0xF)
lakshya 20:949d13045431 425 {
lakshya 20:949d13045431 426 read_val = readreg(reg);
lakshya 20:949d13045431 427 if (read_val == val)
lakshya 20:949d13045431 428 {
lakshya 20:949d13045431 429 break;
lakshya 20:949d13045431 430 }
lakshya 33:76f2b8735501 431 else if(count == 2)
lakshya 20:949d13045431 432 {
lakshya 20:949d13045431 433 reset_rfm(1); printf("reg = 0x%X\n",reg);break;
lakshya 20:949d13045431 434 }
lakshya 20:949d13045431 435 else init_spi();
lakshya 20:949d13045431 436 }
lakshya 20:949d13045431 437 else
lakshya 20:949d13045431 438 break;
lakshya 20:949d13045431 439 }
lakshya 20:949d13045431 440 }
lakshya 20:949d13045431 441 uint8_t readreg(uint8_t reg)
lakshya 20:949d13045431 442 {
lakshya 20:949d13045431 443 uint8_t val;cs = 0;spi.write(reg & ~0x80);val = spi.write(0);cs = 1;return val;
lakshya 20:949d13045431 444 }
lakshya 20:949d13045431 445 void clearTxBuf()
lakshya 20:949d13045431 446 {
lakshya 20:949d13045431 447 writereg(RF22_REG_08_OPERATING_MODE2,0x01);
lakshya 20:949d13045431 448 writereg(RF22_REG_08_OPERATING_MODE2,0x00);
lakshya 20:949d13045431 449 }
lakshya 20:949d13045431 450 uint8_t setFrequency(double centre)
lakshya 20:949d13045431 451 {
lakshya 20:949d13045431 452 uint8_t fbsel = 0x40;
lakshya 20:949d13045431 453 if (centre >= 480.0) {
lakshya 20:949d13045431 454 centre /= 2;
lakshya 20:949d13045431 455 fbsel |= 0x20;
lakshya 20:949d13045431 456 }
lakshya 20:949d13045431 457 centre /= 10.0;
lakshya 20:949d13045431 458 double integerPart = floor(centre);
lakshya 20:949d13045431 459 double fractionalPart = centre - integerPart;
lakshya 20:949d13045431 460
lakshya 20:949d13045431 461 uint8_t fb = (uint8_t)integerPart - 24; // Range 0 to 23
lakshya 20:949d13045431 462 fbsel |= fb;
lakshya 20:949d13045431 463 uint16_t fc = fractionalPart * 64000;
lakshya 20:949d13045431 464 writereg(RF22_REG_73_FREQUENCY_OFFSET1, 0); // REVISIT
lakshya 20:949d13045431 465 writereg(RF22_REG_74_FREQUENCY_OFFSET2, 0);
lakshya 20:949d13045431 466 writereg(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel);
lakshya 20:949d13045431 467 writereg(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8);
lakshya 20:949d13045431 468 writereg(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff);
lakshya 20:949d13045431 469 return 0;
lakshya 20:949d13045431 470 }
lakshya 20:949d13045431 471 void init_spi()
lakshya 20:949d13045431 472 {
lakshya 20:949d13045431 473 cs=1; // chip must be deselected
lakshya 20:949d13045431 474 wait(0.1);
lakshya 20:949d13045431 475 spi.format(8,0);
lakshya 20:949d13045431 476 spi.frequency(10000000); //10MHz SCLK
lakshya 20:949d13045431 477 }
lakshya 20:949d13045431 478 void Init_BEACON_HW()
lakshya 20:949d13045431 479 {
lakshya 20:949d13045431 480 printf("Init HW\n\r");
lakshya 20:949d13045431 481 ERROR_CHECK=0;
lakshya 20:949d13045431 482 wait(0.1);
lakshya 20:949d13045431 483 int BCN_INIT_COUNTER = 1;
lakshya 20:949d13045431 484 while(BCN_INIT_COUNTER)
lakshya 20:949d13045431 485 {
lakshya 20:949d13045431 486 init_spi();
lakshya 20:949d13045431 487 printf("init spi\r\n");
lakshya 20:949d13045431 488 //should either have a flag for invalid SPI or discard this for actual case or add reset
lakshya 20:949d13045431 489 if (readreg(RF22_REG_00_DEVICE_TYPE) == 0x08)
lakshya 20:949d13045431 490 {
lakshya 20:949d13045431 491 pc_bcn.printf("spi connection valid\r\n");
lakshya 20:949d13045431 492 reset_rfm(0);
lakshya 33:76f2b8735501 493 Set_BCN_TX_STATUS(BCN_INIT_SUCCESS);
lakshya 20:949d13045431 494 break;
lakshya 20:949d13045431 495 }
lakshya 20:949d13045431 496 else if (BCN_INIT_COUNTER == 1)
lakshya 20:949d13045431 497 {
lakshya 20:949d13045431 498 pc_bcn.printf("error in spi connection\r\n");
lakshya 20:949d13045431 499 reset_rfm(1);
lakshya 20:949d13045431 500 writereg(RF22_REG_07_OPERATING_MODE1,0x80); //sw_reset
lakshya 20:949d13045431 501 wait(0.1); //takes time to reset
lakshya 20:949d13045431 502 }
lakshya 20:949d13045431 503 else if (BCN_INIT_COUNTER == 2)
lakshya 20:949d13045431 504 {
lakshya 20:949d13045431 505 pc_bcn.printf("error in spi connection\r\n");
lakshya 20:949d13045431 506 reset_rfm(1);
lakshya 20:949d13045431 507 BCN_TX_SW_STATUS = 0b00000011; //Device disabled
lakshya 20:949d13045431 508 //reset BCN HW using switch here
lakshya 20:949d13045431 509 }
lakshya 20:949d13045431 510 else
lakshya 20:949d13045431 511 {
lakshya 20:949d13045431 512 pc_bcn.printf("BCN_TX_FAILURE\r\n");
lakshya 33:76f2b8735501 513 Set_BCN_TX_STATUS(BCN_INIT_FAILURE);
lakshya 20:949d13045431 514 break;
lakshya 20:949d13045431 515 }
lakshya 20:949d13045431 516 BCN_INIT_COUNTER++;
lakshya 20:949d13045431 517 }
lakshya 20:949d13045431 518
lakshya 33:76f2b8735501 519 if(BCN_TX_STATUS == BCN_INIT_SUCCESS)
lakshya 20:949d13045431 520 {
lakshya 20:949d13045431 521 writereg(RF22_REG_07_OPERATING_MODE1,0x80); //sw_reset
lakshya 20:949d13045431 522 wait(0.1); //takes time to reset
lakshya 20:949d13045431 523
lakshya 20:949d13045431 524 clearTxBuf();
lakshya 20:949d13045431 525
lakshya 20:949d13045431 526 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
lakshya 20:949d13045431 527
lakshya 20:949d13045431 528 //txfifoalmostempty
lakshya 20:949d13045431 529 writereg(RF22_REG_7D_TX_FIFO_CONTROL2,30);
lakshya 20:949d13045431 530
lakshya 20:949d13045431 531 //txfifoalmostfull
lakshya 20:949d13045431 532 writereg(RF22_REG_7C_TX_FIFO_CONTROL1,50);
lakshya 20:949d13045431 533
lakshya 20:949d13045431 534
lakshya 20:949d13045431 535 //Packet-engine registers
lakshya 20:949d13045431 536 writereg(RF22_REG_30_DATA_ACCESS_CONTROL,0x00);
lakshya 20:949d13045431 537
lakshya 20:949d13045431 538 writereg(RF22_REG_33_HEADER_CONTROL2,0x08);
lakshya 20:949d13045431 539 writereg(RF22_REG_34_PREAMBLE_LENGTH,0x00);
lakshya 20:949d13045431 540
lakshya 20:949d13045431 541 writereg(RF22_REG_0B_GPIO_CONFIGURATION0,0x15); // TX state
lakshya 20:949d13045431 542 writereg(RF22_REG_0C_GPIO_CONFIGURATION1,0x12); // RX state
lakshya 20:949d13045431 543
lakshya 20:949d13045431 544 setFrequency(435.0);
lakshya 20:949d13045431 545
lakshya 20:949d13045431 546 int i=3;
lakshya 20:949d13045431 547 while(i--)
lakshya 20:949d13045431 548 if((readreg(RF22_REG_02_DEVICE_STATUS)& 0x08)!= 0x00)
lakshya 20:949d13045431 549 {
lakshya 20:949d13045431 550 setFrequency(435.0);
lakshya 20:949d13045431 551 if (i==1)
lakshya 20:949d13045431 552 {pc_bcn.printf("frequency not set properly\r\n");
lakshya 20:949d13045431 553 reset_rfm(1);
lakshya 20:949d13045431 554 }
lakshya 20:949d13045431 555 }
lakshya 20:949d13045431 556
lakshya 20:949d13045431 557 //set Modem Configuration
lakshya 20:949d13045431 558 writereg(RF22_REG_58,0x80);
lakshya 20:949d13045431 559
lakshya 20:949d13045431 560 //Set Data rate - same for both long and short beacon
lakshya 20:949d13045431 561
lakshya 20:949d13045431 562 writereg(RF22_REG_6E_TX_DATA_RATE,0x0A);
lakshya 33:76f2b8735501 563 writereg(RF22_REG_6F_TX_DATA_RATE,0x7C);//1280bps
lakshya 33:76f2b8735501 564 writereg(RF22_REG_70_MODULATION_CONTROL1,0x20);//For data rates below 30kbps
lakshya 20:949d13045431 565
lakshya 20:949d13045431 566
lakshya 33:76f2b8735501 567 writereg(RF22_REG_71_MODULATION_CONTROL2,0x21);//0x21 = FIFO mode with ook demodulation
lakshya 33:76f2b8735501 568
lakshya 20:949d13045431 569
lakshya 20:949d13045431 570 //set tx power
lakshya 20:949d13045431 571 writereg(RF22_REG_6D_TX_POWER,0x07); //20dbm
lakshya 20:949d13045431 572
lakshya 20:949d13045431 573 //TX_packet_length written later
lakshya 20:949d13045431 574 ERROR_CHECK = 0;
lakshya 20:949d13045431 575 printf("Done Init HW\n\r");
lakshya 20:949d13045431 576 }
lakshya 20:949d13045431 577 }
lakshya 20:949d13045431 578 bool Check_ACK_RECEIVED()
lakshya 20:949d13045431 579 {
lakshya 20:949d13045431 580 if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)
lakshya 20:949d13045431 581 {
lakshya 20:949d13045431 582 printf("Packet sent: ACK received\r\n");
lakshya 20:949d13045431 583 return 1;
lakshya 20:949d13045431 584 }
lakshya 20:949d13045431 585 else
lakshya 20:949d13045431 586 {
lakshya 20:949d13045431 587 pc_bcn.printf("Packet not sent\r\n");
lakshya 20:949d13045431 588 return 0;
lakshya 20:949d13045431 589 }
lakshya 20:949d13045431 590 }
lakshya 20:949d13045431 591 /*
lakshya 20:949d13045431 592 int main()
lakshya 20:949d13045431 593 {
lakshya 20:949d13045431 594 FCTN_BCN_INIT();
lakshya 20:949d13045431 595
lakshya 20:949d13045431 596 loop.attach(&FCTN_BCN_TX_MAIN, 10.0);//in actual case its 30.0
lakshya 20:949d13045431 597
lakshya 20:949d13045431 598 while(1);
lakshya 20:949d13045431 599
lakshya 20:949d13045431 600 }
lakshya 33:76f2b8735501 601 */
lakshya 33:76f2b8735501 602
lakshya 33:76f2b8735501 603 void FCTN_BCN_SPND_TX()
lakshya 33:76f2b8735501 604 {
lakshya 33:76f2b8735501 605 BCN_SPND_TX = 1;
lakshya 33:76f2b8735501 606 if( BCN_TX_MAIN_STATUS == 1 && BCN_TX_SW_STATUS == 1 )
lakshya 33:76f2b8735501 607 {
lakshya 33:76f2b8735501 608 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
lakshya 33:76f2b8735501 609 if( readreg(RF22_REG_07_OPERATING_MODE1) & 0x08 == 0x08 )
lakshya 33:76f2b8735501 610 {
lakshya 33:76f2b8735501 611 BCN_SW = 0;
lakshya 33:76f2b8735501 612 BCN_TX_SW_STATUS = 3;
lakshya 33:76f2b8735501 613 }
lakshya 33:76f2b8735501 614 }
lakshya 33:76f2b8735501 615 }
lakshya 33:76f2b8735501 616