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Dependencies:   FreescaleIAP mbed-rtos mbed

Fork of workinQM_10thDec by Team Fox

BCN.cpp@42:413cd8c60cfc, 2016-07-05 (annotated)

Committer:
azaddevarm
Date:
Tue Jul 05 18:20:41 2016 +0000
Revision:
42:413cd8c60cfc
Parent:
39:670133e7ffd8
Child:
43:dec54ff03d3f
Integrated BCN working

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
azaddevarm 42:413cd8c60cfc 9 SPI spi(PIN16, PIN17, PIN15); // mosi, miso, sclk
azaddevarm 42:413cd8c60cfc 10 //SPI spi(D11, D12, D13); // mosi, miso, sclk
azaddevarm 42:413cd8c60cfc 11 DigitalOut cs(PIN6); //slave select or chip select
lakshya 20:949d13045431 12 //SPI spi(PIN16, PIN17, PIN15); // mosi, miso, sclk
lakshya 20:949d13045431 13 //DigitalOut cs(PIN6); //slave select or chip select
lakshya 20:949d13045431 14 Timer t_i;//timer for checking the time taken by (temp.calc. + long_beacon + short_beacon)
lakshya 20:949d13045431 15 //Timer t_is;//timer for short_beacon
lakshya 20:949d13045431 16 //Timer t_il;//timer for long_beacon
lakshya 20:949d13045431 17 Timeout rf_sl_timeout;//RF_silence timer
lakshya 20:949d13045431 18 Ticker loop;//for transmitting every 10 secs
lakshya 20:949d13045431 19
lakshya 20:949d13045431 20 //GLOBAL VARIABLES
lakshya 20:949d13045431 21 uint8_t BCN_INIT_STATUS = 0;
lakshya 20:949d13045431 22 uint8_t BCN_TX_MAIN_STATUS = 0;
lakshya 20:949d13045431 23 uint8_t BCN_TX_STATUS = 0;
lakshya 20:949d13045431 24 uint8_t BCN_TX_ENABLE = 1; //hardcoding for now //check where is this variable toggled??
lakshya 20:949d13045431 25 uint8_t BCN_TX_SW_STATUS = 1;
lakshya 20:949d13045431 26 uint8_t BCN_FEN = 0; //hardcoding for now //write this value to flash
lakshya 20:949d13045431 27 uint8_t BCN_SPND_TX = 0; //hardcoding for now //check where is this variable toggled??
lakshya 20:949d13045431 28 uint8_t BCN_TMP = 0; // For Temperature
lakshya 20:949d13045431 29 uint8_t ERROR_CHECK = 0;
lakshya 20:949d13045431 30 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 31 //This Flag when exceeds a threshold, uC should reset.
lakshya 20:949d13045431 32 uint16_t BCN_TX_MAIN_COUNTER = 0;
lakshya 33:76f2b8735501 33 uint8_t SHORT_HK_data[15];
lakshya 33:76f2b8735501 34 extern uint8_t BCN_LONG_MSG_TYPE;
lakshya 33:76f2b8735501 35 extern uint8_t LONG_HK_data[2][134];
lakshya 39:670133e7ffd8 36 extern DigitalInOut BCN_SW;
lakshya 33:76f2b8735501 37 extern float EPS_BTRY_TMP_AVG;
lakshya 33:76f2b8735501 38
lakshya 33:76f2b8735501 39 extern BAE_HK_quant quant_data;
lakshya 33:76f2b8735501 40 extern uint8_t BAE_RESET_COUNTER;
lakshya 33:76f2b8735501 41 extern Timer BAE_uptime;
lakshya 33:76f2b8735501 42 extern Timer I2C_last;
lakshya 33:76f2b8735501 43 extern void RETURN_UPTIME(float,uint8_t*,uint8_t*,uint8_t*);
lakshya 39:670133e7ffd8 44 extern DigitalInOut CDMS_OC_FAULT;
lakshya 39:670133e7ffd8 45 extern DigitalInOut EPS_CHARGER_STATUS;
lakshya 33:76f2b8735501 46 extern uint8_t crc8_short();
lakshya 33:76f2b8735501 47
lakshya 33:76f2b8735501 48 void SHORT_HK_data_AQ()
lakshya 33:76f2b8735501 49 {
lakshya 33:76f2b8735501 50 uint8_t days,hours,mins;//for calculating the timing data in bae i2c uptime
lakshya 33:76f2b8735501 51
lakshya 33:76f2b8735501 52 //1st 0-7 call sign
lakshya 33:76f2b8735501 53 //SHORT_HK_data[0] _ SHORT_HK_data[6]
azaddevarm 42:413cd8c60cfc 54 SHORT_HK_data[0] = 0xF3;
azaddevarm 42:413cd8c60cfc 55 SHORT_HK_data[1] = 0x02;
azaddevarm 42:413cd8c60cfc 56 SHORT_HK_data[2] = 0xFA;
azaddevarm 42:413cd8c60cfc 57 SHORT_HK_data[3] = 0xC6;
azaddevarm 42:413cd8c60cfc 58 SHORT_HK_data[4] = 0xD4;
azaddevarm 42:413cd8c60cfc 59 SHORT_HK_data[5] = 0x28;
azaddevarm 42:413cd8c60cfc 60 SHORT_HK_data[6] = 0x8A;
azaddevarm 42:413cd8c60cfc 61
lakshya 33:76f2b8735501 62
lakshya 33:76f2b8735501 63 SHORT_HK_data[7] = quant_data.voltage_quant[15];
lakshya 33:76f2b8735501 64 SHORT_HK_data[7] = (SHORT_HK_data[7] & 0xF0) | (quant_data.current_quant[1]>>4);
azaddevarm 42:413cd8c60cfc 65 SHORT_HK_data[8] = 0xFF;
lakshya 33:76f2b8735501 66 //braga SHORT_HK_data[8] = acs first 4 bit
lakshya 33:76f2b8735501 67 SHORT_HK_data[8] = (SHORT_HK_data[8] & 0xF0) | BCN_TMP>>4;
azaddevarm 42:413cd8c60cfc 68 SHORT_HK_data[9] = 0xFF;
lakshya 33:76f2b8735501 69 //SHORT_HK_data[9] = float_to_uint8(min,max,EPS_BTRY_TMP_AVG); min max diss azad
lakshya 33:76f2b8735501 70 SHORT_HK_data[9] = (SHORT_HK_data[9]&0xF0) | BAE_RESET_COUNTER>>4;
lakshya 33:76f2b8735501 71
lakshya 33:76f2b8735501 72 RETURN_UPTIME(BAE_uptime.read(),&days,&hours,&mins);
lakshya 33:76f2b8735501 73 SHORT_HK_data[10] = CDMS_OC_FAULT;
lakshya 33:76f2b8735501 74 //SHORT_HK_data[10] = (1<<SHORT_HK_data[10]) | receiver_oc_fault//to be diss;
lakshya 33:76f2b8735501 75 SHORT_HK_data[10] = (SHORT_HK_data[10]<<1) | ((quant_data.voltage_quant[12]>>2)&0x3C);
lakshya 33:76f2b8735501 76 SHORT_HK_data[10] = (SHORT_HK_data[10]<<2) | ((days>>3)&0x03);
lakshya 33:76f2b8735501 77 SHORT_HK_data[11] = (days<<5) | (hours&0x1F);
lakshya 33:76f2b8735501 78
lakshya 33:76f2b8735501 79 RETURN_UPTIME(I2C_last.read(),&days,&hours,&mins);
lakshya 33:76f2b8735501 80 SHORT_HK_data[12] = EPS_CHARGER_STATUS;
lakshya 33:76f2b8735501 81 SHORT_HK_data[12] = (SHORT_HK_data[12]<<4) | (quant_data.voltage_quant[13]>>4);
lakshya 33:76f2b8735501 82 SHORT_HK_data[12] = (SHORT_HK_data[12]<<3) | (days>>2);
lakshya 33:76f2b8735501 83 SHORT_HK_data[13] = (days<<6) | (mins&0x3F);
lakshya 33:76f2b8735501 84
lakshya 33:76f2b8735501 85 SHORT_HK_data[14] = crc8_short();
lakshya 33:76f2b8735501 86 }
lakshya 20:949d13045431 87
lakshya 20:949d13045431 88 void FCTN_BCN_INIT()
lakshya 20:949d13045431 89 {
lakshya 20:949d13045431 90 pc_bcn.printf("FCTN_BCN_INIT\n");
lakshya 20:949d13045431 91 BCN_INIT_STATUS = 1;
lakshya 33:76f2b8735501 92 if( BCN_TX_SW_STATUS == 0b00000001)
lakshya 20:949d13045431 93 Init_BEACON_HW();
lakshya 20:949d13045431 94 else Set_BCN_TX_STATUS(BCN_TX_DISABLED);
lakshya 33:76f2b8735501 95 // if(BCN_FEN == 0)//BCN_FEN is in flash
lakshya 33:76f2b8735501 96 // rf_sl_timeout.attach(&FCTN_BCN_FEN, RF_SILENCE_TIME);
lakshya 20:949d13045431 97 BCN_INIT_STATUS = 0;
lakshya 20:949d13045431 98 }
lakshya 20:949d13045431 99
lakshya 20:949d13045431 100 extern uint32_t FCTN_BAE_RD_FLASH_ENTITY(uint16_t);
lakshya 20:949d13045431 101 extern void FCTN_BAE_WR_FLASH(uint16_t ,uint32_t );
lakshya 20:949d13045431 102
lakshya 20:949d13045431 103 void FCTN_BCN_FEN(const void*)
lakshya 20:949d13045431 104 {
lakshya 20:949d13045431 105 pc_bcn.printf("FCTN_FEN\n\r");
lakshya 20:949d13045431 106 BCN_FEN = 1;//write this value to flash
lakshya 20:949d13045431 107 uint32_t FLASH_DATA;
lakshya 20:949d13045431 108 FLASH_DATA = FCTN_BAE_RD_FLASH_ENTITY(0);
lakshya 27:61c856be467e 109 FLASH_DATA = (FLASH_DATA | 0x00000800);//see if uint8 to uint32 conversion works
lakshya 20:949d13045431 110 FCTN_BAE_WR_FLASH(0,FLASH_DATA);
lakshya 20:949d13045431 111 }
lakshya 20:949d13045431 112 void FCTN_BCN_TX_MAIN()
lakshya 20:949d13045431 113 {
lakshya 20:949d13045431 114 ERROR_CHECK=0;
lakshya 20:949d13045431 115 pc_bcn.printf("\n\nFCTN_BCN_TX_MAIN\n\r");
lakshya 20:949d13045431 116 t_i.start();
lakshya 20:949d13045431 117 int begin = t_i.read_us();
lakshya 20:949d13045431 118 //int begins,beginl,endl;
lakshya 20:949d13045431 119 int begintx,endtx;
lakshya 20:949d13045431 120 BCN_TX_MAIN_STATUS = 1;
lakshya 20:949d13045431 121 BCN_TX_MAIN_COUNTER++;
lakshya 20:949d13045431 122 if(BCN_FEN == 1)
lakshya 20:949d13045431 123 {
lakshya 20:949d13045431 124 if(BCN_TX_SW_STATUS == 0b00000001)
lakshya 20:949d13045431 125 {
lakshya 33:76f2b8735501 126 Init_BEACON_HW();
lakshya 33:76f2b8735501 127 if( BCN_TX_STATUS == BCN_INIT_SUCCESS )
lakshya 20:949d13045431 128 {
lakshya 33:76f2b8735501 129 //Measure and store BCN temperature in BCN_TS_BUFFER
lakshya 33:76f2b8735501 130 uint8_t temp_temp = check_Temperature();
lakshya 33:76f2b8735501 131 if( temp_temp != 0xFF )
lakshya 33:76f2b8735501 132 BCN_TMP = temp_temp;
lakshya 33:76f2b8735501 133 pc_bcn.printf("temperature = %d\n\r",BCN_TMP);
lakshya 33:76f2b8735501 134 //Get BCN_HK data from BCN HW(SPI) //Store BCN_HK data in BCN_HK_BUFFER
lakshya 33:76f2b8735501 135 if(BCN_SPND_TX == 1 )
lakshya 33:76f2b8735501 136 {
lakshya 33:76f2b8735501 137 Set_BCN_TX_STATUS(BCN_TX_SUSPENDED);
lakshya 33:76f2b8735501 138 BCN_TX_MAIN_STATUS = 0;
lakshya 33:76f2b8735501 139 }
lakshya 33:76f2b8735501 140 else
lakshya 33:76f2b8735501 141 {
lakshya 20:949d13045431 142 //transmit short beacon and long beacon
lakshya 20:949d13045431 143 begintx = t_i.read_us();
lakshya 20:949d13045431 144 BCN_TX();
lakshya 20:949d13045431 145 endtx = t_i.read_us();
lakshya 33:76f2b8735501 146
lakshya 20:949d13045431 147 if(Check_ACK_RECEIVED() == 1)
lakshya 20:949d13045431 148 {
lakshya 20:949d13045431 149 Set_BCN_TX_STATUS(BCN_TX_SUCCESS);
lakshya 20:949d13045431 150 BCN_TX_MAIN_STATUS = 0;
lakshya 20:949d13045431 151 }
lakshya 20:949d13045431 152 else
lakshya 20:949d13045431 153 {
lakshya 33:76f2b8735501 154 Set_BCN_TX_STATUS(BCN_TX_FAILURE);
lakshya 33:76f2b8735501 155 //BCN_FAIL_COUNT++;
lakshya 33:76f2b8735501 156 //Init_BEACON_HW();
lakshya 20:949d13045431 157 BCN_TX_MAIN_STATUS = 0;
lakshya 33:76f2b8735501 158
lakshya 20:949d13045431 159 }
lakshya 33:76f2b8735501 160 }
lakshya 33:76f2b8735501 161 }
lakshya 20:949d13045431 162 }
lakshya 20:949d13045431 163 else
lakshya 20:949d13045431 164 {
lakshya 20:949d13045431 165 Set_BCN_TX_STATUS(BCN_TX_DISABLED);
lakshya 20:949d13045431 166 BCN_TX_MAIN_STATUS = 0;
lakshya 20:949d13045431 167 }
lakshya 20:949d13045431 168 }
lakshya 20:949d13045431 169 else
lakshya 20:949d13045431 170 {
lakshya 20:949d13045431 171 Set_BCN_TX_STATUS(BCN_RF_SILENCE); //Window of RF Silence: None of the Txs should be on.
lakshya 20:949d13045431 172 BCN_TX_MAIN_STATUS = 0;
lakshya 20:949d13045431 173 }
lakshya 20:949d13045431 174 t_i.stop();
lakshya 20:949d13045431 175 int end = t_i.read_us();
lakshya 20:949d13045431 176 pc_bcn.printf("The time required for FCTN_BCN_TX_MAIN is %d useconds\r\n", end-begin);
lakshya 20:949d13045431 177 pc_bcn.printf("The time required for FCTN_BCN_TX is %d useconds\r\n", endtx-begintx);
lakshya 20:949d13045431 178 /*
lakshya 20:949d13045431 179 pc_bcn.printf("The time required for Short_BCN is %d useconds\r\n", beginl-begins);
lakshya 20:949d13045431 180 pc_bcn.printf("The time required for Long_BCN is %d useconds\r\n", endtx-beginl);
lakshya 20:949d13045431 181 */
lakshya 20:949d13045431 182 ERROR_CHECK = 0;
lakshya 20:949d13045431 183
lakshya 20:949d13045431 184 }
lakshya 20:949d13045431 185
lakshya 20:949d13045431 186 void Set_BCN_TX_STATUS(uint8_t STATUS)
lakshya 20:949d13045431 187 {
lakshya 20:949d13045431 188 BCN_TX_STATUS = STATUS;
lakshya 20:949d13045431 189 }
lakshya 20:949d13045431 190
lakshya 20:949d13045431 191 uint8_t check_Temperature()
lakshya 20:949d13045431 192 {
lakshya 20:949d13045431 193 uint8_t temperature;
lakshya 20:949d13045431 194 writereg(RF22_REG_0F_ADC_CONFIGURATION,0x00);//set ADC to temp measurement
lakshya 33:76f2b8735501 195 writereg(RF22_REG_12_Temperature_Sensor_Calibration,0x60);//measure in degree celsius
lakshya 20:949d13045431 196 writereg(RF22_REG_0F_ADC_CONFIGURATION,0x80);//start adc
lakshya 20:949d13045431 197 wait(0.1);
lakshya 33:76f2b8735501 198 if( readreg(RF22_REG_0F_ADC_CONFIGURATION) & 0x80 == 0x00 )
lakshya 33:76f2b8735501 199 {
lakshya 33:76f2b8735501 200 temperature = readreg(RF22_REG_11_ADC_Value);
lakshya 33:76f2b8735501 201 temperature = (float)temperature - 64; //* 0.5 factor
lakshya 33:76f2b8735501 202 }
lakshya 33:76f2b8735501 203 else temperature = 0xFF;
lakshya 33:76f2b8735501 204 // temperature = (float)temperature*0.5 - 64;
lakshya 20:949d13045431 205 return temperature;
lakshya 20:949d13045431 206 }
lakshya 33:76f2b8735501 207
lakshya 33:76f2b8735501 208 uint32_t timeout_count;
lakshya 20:949d13045431 209 void BCN_TX()
lakshya 20:949d13045431 210 {
lakshya 20:949d13045431 211 printf("BCN_TX\n\r");
lakshya 20:949d13045431 212 writereg(RF22_REG_6E_TX_DATA_RATE,0x0A);
lakshya 20:949d13045431 213 writereg(RF22_REG_6F_TX_DATA_RATE,0x7C);//1280bps
lakshya 20:949d13045431 214
lakshya 20:949d13045431 215 wait(0.02);
lakshya 20:949d13045431 216
lakshya 33:76f2b8735501 217 timeout_count = 10e5;
lakshya 20:949d13045431 218 //extract values from short_beacon[]
lakshya 33:76f2b8735501 219 /*
lakshya 20:949d13045431 220 uint8_t Long_beacon[LONG_TX_DATA];
lakshya 20:949d13045431 221 for(int i = 0;i<LONG_TX_DATA;i++)
lakshya 20:949d13045431 222 {
lakshya 20:949d13045431 223 Long_beacon[i] = 0xFF;
lakshya 20:949d13045431 224 }
lakshya 20:949d13045431 225
lakshya 20:949d13045431 226 struct Short_beacon
lakshya 20:949d13045431 227 {
lakshya 20:949d13045431 228 uint8_t Voltage[1];
lakshya 20:949d13045431 229 uint8_t AngularSpeed[2];
lakshya 20:949d13045431 230 uint8_t SubsystemStatus[1];
lakshya 20:949d13045431 231 uint8_t Temp[3];
lakshya 20:949d13045431 232 uint8_t ErrorFlag[1];
lakshya 20:949d13045431 233 }Shortbeacon = { {0xFF}, {0xFF, 0xFF} , {0xFF},{0xFF,0xFF,0xFF}, {0xFF} };
lakshya 20:949d13045431 234
lakshya 20:949d13045431 235 //filling hk data
lakshya 20:949d13045431 236 //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 237 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 238
lakshya 20:949d13045431 239 //writereg(RF22_REG_07_OPERATING_MODE1,0x01); //ready mode ??
lakshya 33:76f2b8735501 240 */
lakshya 20:949d13045431 241 clearTxBuf(); //writing data first time
lakshya 20:949d13045431 242
lakshya 33:76f2b8735501 243 int byte_counter;
lakshya 20:949d13045431 244 uint8_t onebyte[4] = {0x81,0xA6,0xBE,0x4E};
lakshya 20:949d13045431 245 uint8_t zerobyte[4] = {0x7E,0x59,0x41,0xB1};
lakshya 20:949d13045431 246 for (byte_counter = 0; byte_counter <15 ; byte_counter++)
lakshya 20:949d13045431 247 {
lakshya 20:949d13045431 248 for(int j = 7; j >= 0 ; j--)
lakshya 20:949d13045431 249 {
lakshya 20:949d13045431 250 cs = 0;
lakshya 20:949d13045431 251 spi.write(0xFF);
lakshya 33:76f2b8735501 252 if((SHORT_HK_data[byte_counter] & (uint8_t) pow(2.0,j))!= pow(2.0,j))
lakshya 20:949d13045431 253 {
lakshya 20:949d13045431 254 //byte=0x00;
lakshya 20:949d13045431 255 spi.write(zerobyte[0]);
lakshya 20:949d13045431 256 spi.write(zerobyte[1]);
lakshya 20:949d13045431 257 spi.write(zerobyte[2]);
lakshya 20:949d13045431 258 spi.write(zerobyte[3]);
lakshya 20:949d13045431 259 }
lakshya 20:949d13045431 260 else
lakshya 20:949d13045431 261 {
lakshya 20:949d13045431 262 //byte=0xFF;
lakshya 20:949d13045431 263 spi.write(onebyte[0]);
lakshya 20:949d13045431 264 spi.write(onebyte[1]);
lakshya 20:949d13045431 265 spi.write(onebyte[2]);
lakshya 20:949d13045431 266 spi.write(onebyte[3]);
lakshya 20:949d13045431 267 }
lakshya 20:949d13045431 268 cs = 1;
lakshya 20:949d13045431 269 /*
lakshya 20:949d13045431 270 spi.write(byte);
lakshya 20:949d13045431 271 spi.write(byte);
lakshya 20:949d13045431 272 spi.write(byte);
lakshya 20:949d13045431 273 spi.write(byte); //Each bit is written 32 times
lakshya 20:949d13045431 274 */
lakshya 33:76f2b8735501 275 // byte_count+=4;
lakshya 20:949d13045431 276
lakshya 20:949d13045431 277 }
lakshya 20:949d13045431 278
lakshya 20:949d13045431 279 if(byte_counter == 1)
lakshya 33:76f2b8735501 280 if(BCN_SPND_TX != 1) //Check for flag update by COM
lakshya 33:76f2b8735501 281 {
lakshya 33:76f2b8735501 282 //Set to Tx mode
lakshya 33:76f2b8735501 283 writereg(RF22_REG_07_OPERATING_MODE1,0x08); //txon
lakshya 33:76f2b8735501 284 wait(0.1);// takes time to set to tx mode hence the delay of 0.1.
lakshya 33:76f2b8735501 285 }
lakshya 33:76f2b8735501 286
lakshya 20:949d13045431 287 //testing level
lakshya 20:949d13045431 288 /*if(byte_counter > 0)
lakshya 20:949d13045431 289 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x40) == 0x00)break;else
lakshya 20:949d13045431 290 {
lakshya 20:949d13045431 291 pc_bcn.printf("w_f_empty1\n\r");
lakshya 20:949d13045431 292 //reset_rfm(1);
lakshya 20:949d13045431 293 }*/
lakshya 20:949d13045431 294
lakshya 20:949d13045431 295
lakshya 20:949d13045431 296 //Check for fifoThresh
lakshya 20:949d13045431 297
lakshya 20:949d13045431 298 if(byte_counter > 0)
lakshya 20:949d13045431 299 {
lakshya 33:76f2b8735501 300 wait_ms(25);
lakshya 33:76f2b8735501 301 while( timeout_count --)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 33:76f2b8735501 302 {
lakshya 33:76f2b8735501 303 //pc_bcn.printf("w_f_empty\n");
lakshya 33:76f2b8735501 304 //reset_rfm(1);
lakshya 33:76f2b8735501 305 }
lakshya 33:76f2b8735501 306 timeout_count = 10e5;
lakshya 20:949d13045431 307 }
lakshya 20:949d13045431 308
lakshya 20:949d13045431 309 /* if(byte_counter%2==0 && byte_counter)
lakshya 20:949d13045431 310 while(1)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x40) == 0x00)break;else
lakshya 20:949d13045431 311 {
lakshya 20:949d13045431 312 pc_bcn.printf("W = %d\r\n",byte_counter);
lakshya 20:949d13045431 313 }*/
lakshya 20:949d13045431 314 //pc_bcn.printf("W = %d\r\n",byte_counter);
lakshya 20:949d13045431 315 }
lakshya 20:949d13045431 316
lakshya 33:76f2b8735501 317 for(byte_counter = 15;byte_counter<149;byte_counter++)
lakshya 20:949d13045431 318 {
lakshya 20:949d13045431 319 cs = 0;
lakshya 20:949d13045431 320 spi.write(0xFF);
lakshya 33:76f2b8735501 321 spi.write(LONG_HK_data[BCN_LONG_MSG_TYPE][byte_counter-15]);
lakshya 20:949d13045431 322 cs = 1;
lakshya 20:949d13045431 323
lakshya 20:949d13045431 324 if((byte_counter-15)%32==0)
lakshya 20:949d13045431 325 { //Check for fifoThresh
lakshya 20:949d13045431 326 wait_ms(25);
lakshya 33:76f2b8735501 327 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 20:949d13045431 328 {
lakshya 20:949d13045431 329 //pc_bcn.printf("Reset\n");
lakshya 20:949d13045431 330 //reset_rfm(1);
lakshya 20:949d13045431 331 }
lakshya 20:949d13045431 332 }
lakshya 20:949d13045431 333
lakshya 20:949d13045431 334 }
lakshya 20:949d13045431 335 wait_ms(70);
lakshya 20:949d13045431 336 //Check for fifoThresh
lakshya 33:76f2b8735501 337 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x40) == 0x00)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 20:949d13045431 338 {
lakshya 20:949d13045431 339 pc_bcn.printf("Waiting for fifo to empty\r\n");
lakshya 20:949d13045431 340 }
lakshya 20:949d13045431 341
lakshya 20:949d13045431 342 //Check for packetsent interrupt
lakshya 20:949d13045431 343 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 20:949d13045431 344
lakshya 20:949d13045431 345 //pc_bcn.printf("Short packet sent, bytes written = %d\r\n",byte_count);
lakshya 20:949d13045431 346
lakshya 20:949d13045431 347 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
lakshya 20:949d13045431 348
lakshya 20:949d13045431 349 }
lakshya 20:949d13045431 350 #if 0
lakshya 20:949d13045431 351 void LONG_BCN_TX()
lakshya 20:949d13045431 352 {
lakshya 20:949d13045431 353 /*
lakshya 20:949d13045431 354 writereg(RF22_REG_6E_TX_DATA_RATE,0x04);
lakshya 20:949d13045431 355 writereg(RF22_REG_6F_TX_DATA_RATE,0xEA);//600 bps
lakshya 20:949d13045431 356 */
lakshya 20:949d13045431 357 writereg(RF22_REG_3E_PACKET_LENGTH,LONG_TX_DATA); //long packet length
lakshya 20:949d13045431 358 wait(0.02);
lakshya 20:949d13045431 359 uint32_t timeout_count=10e5;
lakshya 20:949d13045431 360
lakshya 20:949d13045431 361 //get long_beacon array
lakshya 20:949d13045431 362
lakshya 20:949d13045431 363 uint8_t Long_beacon[LONG_TX_DATA];
lakshya 20:949d13045431 364 for(int i = 0;i<LONG_TX_DATA;i++)
lakshya 20:949d13045431 365 {
lakshya 20:949d13045431 366 Long_beacon[i] = 0xFF;
lakshya 20:949d13045431 367 }
lakshya 20:949d13045431 368
lakshya 20:949d13045431 369 clearTxBuf();
lakshya 20:949d13045431 370 //writing data first time
lakshya 20:949d13045431 371 cs = 0;
lakshya 20:949d13045431 372 spi.write(0xFF);
lakshya 20:949d13045431 373 for(int i=0; i<64;i++)
lakshya 20:949d13045431 374 {
lakshya 20:949d13045431 375 spi.write(Long_beacon[i]);
lakshya 20:949d13045431 376 }
lakshya 20:949d13045431 377 cs = 1;
lakshya 20:949d13045431 378
lakshya 20:949d13045431 379 //Set to Tx mode
lakshya 20:949d13045431 380 writereg(RF22_REG_07_OPERATING_MODE1,0x08);
lakshya 20:949d13045431 381 wait(0.1);//necessary
lakshya 20:949d13045431 382
lakshya 20:949d13045431 383 //Check for fifoThresh
lakshya 20:949d13045431 384 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1)
lakshya 20:949d13045431 385 {
lakshya 20:949d13045431 386 pc_bcn.printf("Reset\n");
lakshya 20:949d13045431 387 reset_rfm(1);
lakshya 20:949d13045431 388 }
lakshya 20:949d13045431 389 timeout_count=10e5;
lakshya 20:949d13045431 390
lakshya 20:949d13045431 391 cs = 0;
lakshya 20:949d13045431 392 spi.write(0xFF);
lakshya 20:949d13045431 393 for(int i=64; i<127;i++)
lakshya 20:949d13045431 394 {
lakshya 20:949d13045431 395 spi.write(Long_beacon[i]);
lakshya 20:949d13045431 396 }
lakshya 20:949d13045431 397 cs = 1;
lakshya 20:949d13045431 398 wait(0.1);
lakshya 20:949d13045431 399 //Check for fifoThresh
lakshya 20:949d13045431 400 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;else if(timeout_count == 1)
lakshya 20:949d13045431 401 {
lakshya 20:949d13045431 402 pc_bcn.printf("Reset\n");
lakshya 20:949d13045431 403 reset_rfm(1);}
lakshya 20:949d13045431 404 timeout_count=10e5;
lakshya 20:949d13045431 405
lakshya 20:949d13045431 406 //Check for packetsent interrupt
lakshya 20:949d13045431 407 while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;else if(timeout_count == 1) reset_rfm(1);
lakshya 20:949d13045431 408
lakshya 20:949d13045431 409 //pc_bcn.printf("Long packet sent\r\n");
lakshya 20:949d13045431 410
lakshya 20:949d13045431 411 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
lakshya 20:949d13045431 412 }
lakshya 20:949d13045431 413 #endif
lakshya 20:949d13045431 414 void reset_rfm(uint8_t fl)
lakshya 20:949d13045431 415 {
lakshya 20:949d13045431 416 if (fl ==1 && ERROR_CHECK ==0)
lakshya 20:949d13045431 417 { BCN_FAIL_COUNT++;
lakshya 20:949d13045431 418 ERROR_CHECK=1;
lakshya 20:949d13045431 419 printf("BCN_FAIL_COUNT++\n");
lakshya 20:949d13045431 420 }
lakshya 20:949d13045431 421 else if(fl == 0)
lakshya 20:949d13045431 422 {
lakshya 20:949d13045431 423 BCN_FAIL_COUNT = 0;
lakshya 20:949d13045431 424 ERROR_CHECK=0;
lakshya 20:949d13045431 425 }
lakshya 20:949d13045431 426 }
lakshya 20:949d13045431 427 void writereg(uint8_t reg,uint8_t val)
lakshya 20:949d13045431 428 {
lakshya 20:949d13045431 429
lakshya 20:949d13045431 430 uint8_t count = 0;
lakshya 20:949d13045431 431 for(;;count++)
lakshya 20:949d13045431 432 {
lakshya 20:949d13045431 433 int read_val =0; cs = 0;spi.write(reg | 0x80);spi.write(val);cs = 1;
lakshya 20:949d13045431 434 if(reg != 0x7 && reg != 0x58 && reg != 0xF)
lakshya 20:949d13045431 435 {
lakshya 20:949d13045431 436 read_val = readreg(reg);
lakshya 20:949d13045431 437 if (read_val == val)
lakshya 20:949d13045431 438 {
lakshya 20:949d13045431 439 break;
lakshya 20:949d13045431 440 }
lakshya 33:76f2b8735501 441 else if(count == 2)
lakshya 20:949d13045431 442 {
lakshya 20:949d13045431 443 reset_rfm(1); printf("reg = 0x%X\n",reg);break;
lakshya 20:949d13045431 444 }
lakshya 20:949d13045431 445 else init_spi();
lakshya 20:949d13045431 446 }
lakshya 20:949d13045431 447 else
lakshya 20:949d13045431 448 break;
lakshya 20:949d13045431 449 }
lakshya 20:949d13045431 450 }
lakshya 20:949d13045431 451 uint8_t readreg(uint8_t reg)
lakshya 20:949d13045431 452 {
lakshya 20:949d13045431 453 uint8_t val;cs = 0;spi.write(reg & ~0x80);val = spi.write(0);cs = 1;return val;
lakshya 20:949d13045431 454 }
lakshya 20:949d13045431 455 void clearTxBuf()
lakshya 20:949d13045431 456 {
lakshya 20:949d13045431 457 writereg(RF22_REG_08_OPERATING_MODE2,0x01);
lakshya 20:949d13045431 458 writereg(RF22_REG_08_OPERATING_MODE2,0x00);
lakshya 20:949d13045431 459 }
lakshya 20:949d13045431 460 uint8_t setFrequency(double centre)
lakshya 20:949d13045431 461 {
lakshya 20:949d13045431 462 uint8_t fbsel = 0x40;
lakshya 20:949d13045431 463 if (centre >= 480.0) {
lakshya 20:949d13045431 464 centre /= 2;
lakshya 20:949d13045431 465 fbsel |= 0x20;
lakshya 20:949d13045431 466 }
lakshya 20:949d13045431 467 centre /= 10.0;
lakshya 20:949d13045431 468 double integerPart = floor(centre);
lakshya 20:949d13045431 469 double fractionalPart = centre - integerPart;
lakshya 20:949d13045431 470
lakshya 20:949d13045431 471 uint8_t fb = (uint8_t)integerPart - 24; // Range 0 to 23
lakshya 20:949d13045431 472 fbsel |= fb;
lakshya 20:949d13045431 473 uint16_t fc = fractionalPart * 64000;
lakshya 20:949d13045431 474 writereg(RF22_REG_73_FREQUENCY_OFFSET1, 0); // REVISIT
lakshya 20:949d13045431 475 writereg(RF22_REG_74_FREQUENCY_OFFSET2, 0);
lakshya 20:949d13045431 476 writereg(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel);
lakshya 20:949d13045431 477 writereg(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8);
lakshya 20:949d13045431 478 writereg(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff);
lakshya 20:949d13045431 479 return 0;
lakshya 20:949d13045431 480 }
lakshya 20:949d13045431 481 void init_spi()
lakshya 20:949d13045431 482 {
lakshya 20:949d13045431 483 cs=1; // chip must be deselected
lakshya 20:949d13045431 484 wait(0.1);
lakshya 20:949d13045431 485 spi.format(8,0);
lakshya 20:949d13045431 486 spi.frequency(10000000); //10MHz SCLK
lakshya 20:949d13045431 487 }
lakshya 20:949d13045431 488 void Init_BEACON_HW()
lakshya 20:949d13045431 489 {
lakshya 20:949d13045431 490 printf("Init HW\n\r");
lakshya 20:949d13045431 491 ERROR_CHECK=0;
lakshya 20:949d13045431 492 wait(0.1);
lakshya 20:949d13045431 493 int BCN_INIT_COUNTER = 1;
lakshya 20:949d13045431 494 while(BCN_INIT_COUNTER)
lakshya 20:949d13045431 495 {
lakshya 20:949d13045431 496 init_spi();
lakshya 20:949d13045431 497 printf("init spi\r\n");
lakshya 20:949d13045431 498 //should either have a flag for invalid SPI or discard this for actual case or add reset
lakshya 20:949d13045431 499 if (readreg(RF22_REG_00_DEVICE_TYPE) == 0x08)
lakshya 20:949d13045431 500 {
lakshya 20:949d13045431 501 pc_bcn.printf("spi connection valid\r\n");
lakshya 20:949d13045431 502 reset_rfm(0);
lakshya 33:76f2b8735501 503 Set_BCN_TX_STATUS(BCN_INIT_SUCCESS);
lakshya 20:949d13045431 504 break;
lakshya 20:949d13045431 505 }
lakshya 20:949d13045431 506 else if (BCN_INIT_COUNTER == 1)
lakshya 20:949d13045431 507 {
lakshya 20:949d13045431 508 pc_bcn.printf("error in spi connection\r\n");
lakshya 20:949d13045431 509 reset_rfm(1);
lakshya 20:949d13045431 510 writereg(RF22_REG_07_OPERATING_MODE1,0x80); //sw_reset
lakshya 20:949d13045431 511 wait(0.1); //takes time to reset
lakshya 20:949d13045431 512 }
lakshya 20:949d13045431 513 else if (BCN_INIT_COUNTER == 2)
lakshya 20:949d13045431 514 {
lakshya 20:949d13045431 515 pc_bcn.printf("error in spi connection\r\n");
lakshya 20:949d13045431 516 reset_rfm(1);
lakshya 20:949d13045431 517 BCN_TX_SW_STATUS = 0b00000011; //Device disabled
lakshya 20:949d13045431 518 //reset BCN HW using switch here
lakshya 20:949d13045431 519 }
lakshya 20:949d13045431 520 else
lakshya 20:949d13045431 521 {
lakshya 20:949d13045431 522 pc_bcn.printf("BCN_TX_FAILURE\r\n");
lakshya 33:76f2b8735501 523 Set_BCN_TX_STATUS(BCN_INIT_FAILURE);
lakshya 20:949d13045431 524 break;
lakshya 20:949d13045431 525 }
lakshya 20:949d13045431 526 BCN_INIT_COUNTER++;
lakshya 20:949d13045431 527 }
lakshya 20:949d13045431 528
lakshya 33:76f2b8735501 529 if(BCN_TX_STATUS == BCN_INIT_SUCCESS)
lakshya 20:949d13045431 530 {
lakshya 20:949d13045431 531 writereg(RF22_REG_07_OPERATING_MODE1,0x80); //sw_reset
lakshya 20:949d13045431 532 wait(0.1); //takes time to reset
lakshya 20:949d13045431 533
lakshya 20:949d13045431 534 clearTxBuf();
lakshya 20:949d13045431 535
lakshya 20:949d13045431 536 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
lakshya 20:949d13045431 537
lakshya 20:949d13045431 538 //txfifoalmostempty
lakshya 20:949d13045431 539 writereg(RF22_REG_7D_TX_FIFO_CONTROL2,30);
lakshya 20:949d13045431 540
lakshya 20:949d13045431 541 //txfifoalmostfull
lakshya 20:949d13045431 542 writereg(RF22_REG_7C_TX_FIFO_CONTROL1,50);
lakshya 20:949d13045431 543
lakshya 20:949d13045431 544
lakshya 20:949d13045431 545 //Packet-engine registers
lakshya 20:949d13045431 546 writereg(RF22_REG_30_DATA_ACCESS_CONTROL,0x00);
lakshya 20:949d13045431 547
lakshya 20:949d13045431 548 writereg(RF22_REG_33_HEADER_CONTROL2,0x08);
lakshya 20:949d13045431 549 writereg(RF22_REG_34_PREAMBLE_LENGTH,0x00);
lakshya 20:949d13045431 550
lakshya 20:949d13045431 551 writereg(RF22_REG_0B_GPIO_CONFIGURATION0,0x15); // TX state
lakshya 20:949d13045431 552 writereg(RF22_REG_0C_GPIO_CONFIGURATION1,0x12); // RX state
lakshya 20:949d13045431 553
lakshya 20:949d13045431 554 setFrequency(435.0);
lakshya 20:949d13045431 555
lakshya 20:949d13045431 556 int i=3;
lakshya 20:949d13045431 557 while(i--)
lakshya 20:949d13045431 558 if((readreg(RF22_REG_02_DEVICE_STATUS)& 0x08)!= 0x00)
lakshya 20:949d13045431 559 {
lakshya 20:949d13045431 560 setFrequency(435.0);
lakshya 20:949d13045431 561 if (i==1)
lakshya 20:949d13045431 562 {pc_bcn.printf("frequency not set properly\r\n");
lakshya 20:949d13045431 563 reset_rfm(1);
lakshya 20:949d13045431 564 }
lakshya 20:949d13045431 565 }
lakshya 20:949d13045431 566
lakshya 20:949d13045431 567 //set Modem Configuration
lakshya 20:949d13045431 568 writereg(RF22_REG_58,0x80);
lakshya 20:949d13045431 569
lakshya 20:949d13045431 570 //Set Data rate - same for both long and short beacon
lakshya 20:949d13045431 571
lakshya 20:949d13045431 572 writereg(RF22_REG_6E_TX_DATA_RATE,0x0A);
lakshya 33:76f2b8735501 573 writereg(RF22_REG_6F_TX_DATA_RATE,0x7C);//1280bps
lakshya 33:76f2b8735501 574 writereg(RF22_REG_70_MODULATION_CONTROL1,0x20);//For data rates below 30kbps
lakshya 20:949d13045431 575
lakshya 20:949d13045431 576
lakshya 33:76f2b8735501 577 writereg(RF22_REG_71_MODULATION_CONTROL2,0x21);//0x21 = FIFO mode with ook demodulation
lakshya 33:76f2b8735501 578
lakshya 20:949d13045431 579
lakshya 20:949d13045431 580 //set tx power
lakshya 20:949d13045431 581 writereg(RF22_REG_6D_TX_POWER,0x07); //20dbm
lakshya 20:949d13045431 582
lakshya 20:949d13045431 583 //TX_packet_length written later
lakshya 20:949d13045431 584 ERROR_CHECK = 0;
lakshya 20:949d13045431 585 printf("Done Init HW\n\r");
lakshya 20:949d13045431 586 }
lakshya 20:949d13045431 587 }
lakshya 20:949d13045431 588 bool Check_ACK_RECEIVED()
lakshya 20:949d13045431 589 {
lakshya 20:949d13045431 590 if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)
lakshya 20:949d13045431 591 {
lakshya 20:949d13045431 592 printf("Packet sent: ACK received\r\n");
lakshya 20:949d13045431 593 return 1;
lakshya 20:949d13045431 594 }
lakshya 20:949d13045431 595 else
lakshya 20:949d13045431 596 {
lakshya 20:949d13045431 597 pc_bcn.printf("Packet not sent\r\n");
lakshya 20:949d13045431 598 return 0;
lakshya 20:949d13045431 599 }
lakshya 20:949d13045431 600 }
lakshya 20:949d13045431 601 /*
lakshya 20:949d13045431 602 int main()
lakshya 20:949d13045431 603 {
lakshya 20:949d13045431 604 FCTN_BCN_INIT();
lakshya 20:949d13045431 605
lakshya 20:949d13045431 606 loop.attach(&FCTN_BCN_TX_MAIN, 10.0);//in actual case its 30.0
lakshya 20:949d13045431 607
lakshya 20:949d13045431 608 while(1);
lakshya 20:949d13045431 609
lakshya 20:949d13045431 610 }
lakshya 33:76f2b8735501 611 */
lakshya 33:76f2b8735501 612
lakshya 33:76f2b8735501 613 void FCTN_BCN_SPND_TX()
lakshya 33:76f2b8735501 614 {
lakshya 33:76f2b8735501 615 BCN_SPND_TX = 1;
lakshya 33:76f2b8735501 616 if( BCN_TX_MAIN_STATUS == 1 && BCN_TX_SW_STATUS == 1 )
lakshya 33:76f2b8735501 617 {
lakshya 33:76f2b8735501 618 writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode
lakshya 33:76f2b8735501 619 if( readreg(RF22_REG_07_OPERATING_MODE1) & 0x08 == 0x08 )
lakshya 33:76f2b8735501 620 {
lakshya 33:76f2b8735501 621 BCN_SW = 0;
lakshya 33:76f2b8735501 622 BCN_TX_SW_STATUS = 3;
lakshya 33:76f2b8735501 623 }
lakshya 33:76f2b8735501 624 }
lakshya 33:76f2b8735501 625 }
lakshya 33:76f2b8735501 626