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Dependencies:   FreescaleIAP mbed-rtos mbed

Fork of BAE_CODE_MARCH_2017 by Team Fox

BCN.cpp@33:76f2b8735501, 2016-07-04 (annotated)

Committer:
lakshya
Date:
Mon Jul 04 04:29:59 2016 +0000
Revision:
33:76f2b8735501
Parent:
27:61c856be467e
Child:
39:670133e7ffd8
watch_dog to be implemented ; fine detailings

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