Beacon tx main incomplete

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tx.cpp

00001 #include "tx.h"
00002 
00003 SPI spi(D11, D12, D13);              // mosi, miso, sclk
00004 DigitalOut cs(D10);                //slave select or chip select
00005 
00006 void FCTN_BEA_TX_MAIN()
00007 {
00008     BEA_TX_MAIN_STATUS = 1;
00009     if(BEA_FEN){
00010         if(BEA_TX_EN){
00011             if(BEA_TX_STANDBY){
00012                 Set_BEA_TX_MAIN_STATE_STATUS(BEA_TX_STANDBY);
00013                 BEA_TX_MAIN_STATUS = 0;
00014                 break;
00015             }
00016             else{
00017                 if(check_POWER_LEVEL()){  //Power level is measured using SoC(State of Charge)
00018                     SHORT_BEA_TX();
00019                     if(Check_ACK_RECEIVED()){
00020                         Set_BEA_TX_MAIN_STATE_STATUS(BEA_TX_SB_SI_SUCCESS);
00021                         BEA_TX_MAIN_STATUS = 0;
00022                         break;    
00023                     }
00024                     else{
00025                         Set_BEA_TX_MAIN_STATE_STATUS(BEA_TX_FAILURE);
00026                         BEA_TX_MAIN_STATUS = 0;
00027                         break;
00028                     }
00029                 }
00030                 else{
00031                     INC_BEA_LOW_POWER_COUNTER();
00032                     if(LOW_POWER_COUNTER=3){
00033                         SHORT_BEA_TX();
00034                         if(Check_ACK_RECEIVED()){
00035                             Set_BEA_TX_MAIN_STATE_STATUS(BEA_TX_SB_LI_SUCCESS);
00036                             BEA_TX_MAIN_STATUS = 0;
00037                             break;    
00038                         }
00039                         else{
00040                             Set_BEA_TX_MAIN_STATE_STATUS(BEA_TX_FAILURE);
00041                             BEA_TX_MAIN_STATUS = 0;
00042                             break;
00043                         }
00044                     }
00045                     else{
00046                         BEA_TX_MAIN_STATUS = 0;
00047                         break;
00048                     }
00049                 }
00050             }
00051         }
00052         else {
00053             Set_BEA_TX_MAIN_STATE_STATUS(BEA_TX_DISABLED);
00054             BEA_TX_MAIN_STATUS = 0;
00055             break;
00056         }
00057     }
00058     else {
00059         Set_BEA_TX_MAIN_STATE_STATUS(BEA_RF_SILENCE);
00060         BEA_TX_MAIN_STATUS = 0;
00061         break;
00062     }
00063     
00064 }
00065 
00066 void Set_BEA_TX_MAIN_STATE_STATUS(uint8_t STATUS){
00067     BEA_TX_MAIN_STATE_STATUS = STATUS;
00068 }
00069 check_POWER_LEVEL(){
00070     
00071 }
00072 void SHORT_BEA_TX()
00073 {
00074     /*
00075     init();
00076     //init complete
00077     pc.printf("init complete.....press t to send\n");
00078 while(pc.getc()=='t')
00079 {   */
00080     //button.rise(&interrupt_func);         //interrupt enabled ( rising edge of pin 9)
00081     wait(0.02);                                                           // pl. update this value  or even avoid it!!!                  
00082     int i=0;
00083     //extract values from short_beacon[]
00084     uint8_t byte_counter = 0;
00085     struct Short_beacon{
00086         uint8_t Voltage[1];
00087         uint8_t AngularSpeed[2];
00088         uint8_t SubsystemStatus[1];
00089         uint8_t Temp[3];
00090         uint8_t ErrorFlag[1];
00091         }Shortbeacon = { {0x88}, {0x99, 0xAA} , {0xAA},{0xAA,0xDD,0xEE}, {0x00} };
00092     
00093     //filling hk data
00094     //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]};
00095     uint8_t short_beacon[] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,Shortbeacon.Voltage[0],Shortbeacon.AngularSpeed[0], Shortbeacon.AngularSpeed[1],Shortbeacon.SubsystemStatus[0],Shortbeacon.Temp[0],Shortbeacon.Temp[1],Shortbeacon.Temp[2],Shortbeacon.ErrorFlag[0]};
00096     //mask
00097     /*uint8_t data[] = "Hello World!";
00098     pc.printf("%d %d %d %d %d %d %d %d %d %d %d %d",data[0],data[1],data[2],data[3],data[4],data[5],data[6],data[7],data[8],data[9],data[10],data[11],data[12]);*/
00099     
00100     //setModeIdle();
00101     writereg(RF22_REG_07_OPERATING_MODE1,0x01);        //ready mode    
00102     clearTxBuf();     
00103     //writing data first time
00104     cs = 0;
00105     spi.write(0xFF);   
00106     for(i=7; i>0;i--)
00107     {
00108     pc.printf("i=%d \n",i);        
00109     if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!= pow(2.0,i))
00110     {
00111         i--;
00112         if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!= pow(2.0,i))
00113         {
00114             spi.write(0x00);
00115             //pc.printf("0x00\n");
00116         }
00117         else
00118         {
00119             spi.write(0x0F);
00120             //pc.printf("0x0F\n");
00121         }
00122     }
00123     else
00124     {
00125         i--;
00126         if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!= pow(2.0,i))
00127         {
00128             spi.write(0xF0);
00129             //pc.printf("0xF0\n");                
00130         }
00131         else
00132         {
00133             spi.write(0xFF);
00134             //pc.printf("0xFF\n");                
00135         }
00136     }
00137     }
00138     cs = 1;
00139     byte_counter++;
00140     //Check for fifoThresh
00141     while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20) pc.printf("fifothresh1?\n");
00142     
00143     //Set to Tx mode
00144     writereg(RF22_REG_07_OPERATING_MODE1,0x09);
00145     
00146     while(byte_counter!=15){
00147         pc.printf("%d\n",byte_counter);
00148         cs = 0;
00149         spi.write(0xFF);   
00150         for(i=7; i>0;i--)
00151         {
00152         pc.printf("i=%d \n",i);        
00153         if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!= pow(2.0,i))
00154         {
00155             i--;
00156             if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!= pow(2.0,i))
00157             {
00158                 spi.write(0x00);
00159                 //pc.printf("0x00\n");
00160             }
00161             else
00162             {
00163                 spi.write(0x0F);
00164                 //pc.printf("0x0F\n");
00165             }
00166         }
00167         else
00168         {
00169             i--;
00170             if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!= pow(2.0,i))
00171             {
00172                 spi.write(0xF0);
00173                 //pc.printf("0xF0\n");                
00174             }
00175             else
00176             {
00177                 spi.write(0xFF);
00178                 //pc.printf("0xFF\n");                
00179             }
00180         }
00181         }
00182         cs = 1;
00183         byte_counter++;
00184         wait(0.01);
00185         //Check for fifoThresh
00186         while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20) pc.printf("fifothresh2?\n");      
00187     }  
00188     //rf22.waitPacketSent();
00189     while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) != 0x04)pc.printf(" chck pkt sent!\n");     
00190     pc.printf(" packet sent ");
00191     }
00192 }
00193 void writereg(uint8_t reg,uint8_t val)
00194 {
00195     cs = 0;__disable_irq();spi.write(reg | 0x80);spi.write(val);__enable_irq();cs = 1;
00196 }
00197 uint8_t readreg(uint8_t reg)
00198 {
00199     int val;cs = 0;__disable_irq();spi.write(reg & ~0x80);val = spi.write(0);__enable_irq();cs = 1;return val;
00200 }
00201 void clearTxBuf()
00202 {
00203     writereg(RF22_REG_08_OPERATING_MODE2,0x01);
00204     writereg(RF22_REG_08_OPERATING_MODE2,0x00);
00205 }
00206 void clearRxBuf()
00207 {
00208     writereg(RF22_REG_08_OPERATING_MODE2,0x02);
00209     writereg(RF22_REG_08_OPERATING_MODE2,0x00);
00210 }
00211 int setFrequency(float centre,float afcPullInRange)
00212 {
00213 //freq setting begins 
00214     uint8_t fbsel = 0x40;
00215     uint8_t afclimiter;
00216     if (centre >= 480.0) {
00217         centre /= 2;
00218         fbsel |= 0x20;
00219         afclimiter = afcPullInRange * 1000000.0 / 1250.0;
00220     } else {
00221         if (afcPullInRange < 0.0 || afcPullInRange > 0.159375)
00222             return false;
00223         afclimiter = afcPullInRange * 1000000.0 / 625.0;
00224     }
00225     centre /= 10.0;
00226     float integerPart = floor(centre);
00227     float fractionalPart = centre - integerPart;
00228  
00229     uint8_t fb = (uint8_t)integerPart - 24; // Range 0 to 23
00230     fbsel |= fb;
00231     uint16_t fc = fractionalPart * 64000;
00232     writereg(RF22_REG_73_FREQUENCY_OFFSET1, 0);  // REVISIT
00233     writereg(RF22_REG_74_FREQUENCY_OFFSET2, 0);
00234     writereg(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel);
00235     writereg(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8);
00236     writereg(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff);
00237     writereg(RF22_REG_2A_AFC_LIMITER, afclimiter);
00238     return 0;
00239 }
00240 
00241 void Init_BEACON_HW()
00242 {
00243     cs=1;                          // chip must be deselected
00244     wait(1);                    //change the time later
00245     spi.format(8,0);
00246     spi.frequency(10000000);       //10MHz SCLK    
00247     if (readreg(RF22_REG_00_DEVICE_TYPE) == 0x08) pc.printf("spi connection valid\n");
00248     else pc.printf("error in spi connection\n");
00249     //reset()
00250     writereg(RF22_REG_07_OPERATING_MODE1,0x80);        //sw_reset
00251     wait(1);                    //takes time to reset                                  
00252 
00253     clearTxBuf();                                                             
00254     clearRxBuf();                                                             
00255     //txfifoalmostempty
00256     writereg(RF22_REG_7D_TX_FIFO_CONTROL2,10);
00257     //rxfifoalmostfull
00258     writereg(RF22_REG_7E_RX_FIFO_CONTROL,20);
00259     //Packet-engine registers
00260     writereg(RF22_REG_30_DATA_ACCESS_CONTROL,0x8E);    //RF22_REG_30_DATA_ACCESS_CONTROL, RF22_ENPACRX | RF22_ENPACTX | RF22_ENCRC | RF22_CRC_CRC_16_IBM
00261     //&0x77 = diasable packet rx-tx handling
00262     writereg(RF22_REG_32_HEADER_CONTROL1,0x88);    //RF22_REG_32_HEADER_CONTROL1, RF22_BCEN_HEADER3 | RF22_HDCH_HEADER3
00263     writereg(RF22_REG_33_HEADER_CONTROL2,0x42);    //RF22_REG_33_HEADER_CONTROL2, RF22_HDLEN_4 | RF22_SYNCLEN_2
00264     writereg(RF22_REG_34_PREAMBLE_LENGTH,8);       //RF22_REG_34_PREAMBLE_LENGTH, nibbles); preamble length = 8;
00265     writereg(RF22_REG_36_SYNC_WORD3,0x2D);    //syncword3=2D
00266     writereg(RF22_REG_37_SYNC_WORD2,0xD4);    //syncword2=D4
00267     writereg(RF22_REG_3F_CHECK_HEADER3,0);    //RF22_REG_3F_CHECK_HEADER3, RF22_DEFAULT_NODE_ADDRESS
00268     writereg(RF22_REG_3A_TRANSMIT_HEADER3,0xab);    //header_to
00269     writereg(RF22_REG_3B_TRANSMIT_HEADER2,0xbc);    //header_from 
00270     writereg(RF22_REG_3C_TRANSMIT_HEADER1,0xcd);    //header_ids
00271     writereg(RF22_REG_3D_TRANSMIT_HEADER0,0xde);    //header_flags
00272     writereg(RF22_REG_3F_CHECK_HEADER3,0xab);   
00273     writereg(RF22_REG_40_CHECK_HEADER2,0xbc);   
00274     writereg(RF22_REG_41_CHECK_HEADER1,0xcd);   
00275     writereg(RF22_REG_42_CHECK_HEADER0,0xde);
00276     
00277     //RSSI threshold for clear channel indicator
00278     writereg(RF22_REG_27_RSSI_THRESHOLD,0xA5);         //55 for -80dBm, 2D for -100dBm, 7D for -60dBm, A5 for -40dBm, CD for -20 dBm
00279     
00280     writereg(RF22_REG_0B_GPIO_CONFIGURATION0,0x15); // TX state                        ??
00281     writereg(RF22_REG_0C_GPIO_CONFIGURATION1,0x12); // RX state                        ??
00282     
00283     //interrupts
00284     // spiWrite(RF22_REG_05_INTERRUPT_ENABLE1, RF22_ENTXFFAEM |RF22_ENRXFFAFULL | RF22_ENPKSENT |RF22_ENPKVALID| RF22_ENCRCERROR);
00285     // spiWrite(RF22_REG_06_INTERRUPT_ENABLE2, RF22_ENPREAVAL);
00286     
00287     setFrequency(435.0, 0.05);
00288     
00289     //return !(statusRead() & RF22_FREQERR);
00290     if((readreg(RF22_REG_02_DEVICE_STATUS)& 0x08)!= 0x00)
00291     pc.printf("frequency not set properly\n");
00292     //frequency set
00293 
00294     //setModemConfig(FSK_Rb2_4Fd36);       FSK_Rb2_4Fd36,       ///< FSK, No Manchester, Rb = 2.4kbs,  Fd = 36kHz
00295     //setmodemregisters
00296     //0x1b, 0x03, 0x41, 0x60, 0x27, 0x52, 0x00, 0x07, 0x40, 0x0a, 0x1e, 0x80, 0x60, 0x13, 0xa9, 0x2c, 0x22, 0x3a = FSK_RB2_4FD36
00297     //0xc8, 0x03, 0x39, 0x20, 0x68, 0xdc, 0x00, 0x6b, 0x2a, 0x08, 0x2a, 0x80, 0x60, 0x13, 0xa9, 0x2c, 0x21, 0x08 = OOK,2.4, 335
00298     writereg(RF22_REG_1C_IF_FILTER_BANDWIDTH,0xdf);
00299     writereg(RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE,0x03);
00300     writereg(RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE,0x39);
00301     writereg(RF22_REG_21_CLOCK_RECOVERY_OFFSET2,0x20);                     
00302     writereg(RF22_REG_22_CLOCK_RECOVERY_OFFSET1,0x68);           //updated 20 to 25 reg values from excel sheet for 1.2 Khz freq. deviation,fsk
00303     writereg(RF22_REG_23_CLOCK_RECOVERY_OFFSET0,0xdc);
00304     writereg(RF22_REG_24_CLOCK_RECOVERY_TIMING_LOOP_GAIN1,0x00);
00305     writereg(RF22_REG_25_CLOCK_RECOVERY_TIMING_LOOP_GAIN0,0x6B);
00306     writereg(RF22_REG_2C_OOK_COUNTER_VALUE_1,0x2C);
00307     writereg(RF22_REG_2D_OOK_COUNTER_VALUE_2,0x11);    //not required for fsk (OOK counter value)
00308     writereg(RF22_REG_2E_SLICER_PEAK_HOLD,0x2A);         //??
00309     writereg(RF22_REG_58,0x80);
00310     writereg(RF22_REG_69_AGC_OVERRIDE1,0x60);
00311     writereg(RF22_REG_6E_TX_DATA_RATE1,0x09);
00312     writereg(RF22_REG_6F_TX_DATA_RATE0,0xd5);
00313     writereg(RF22_REG_70_MODULATION_CONTROL1,0x2c);
00314     writereg(RF22_REG_71_MODULATION_CONTROL2,0x21);//ook = 0x21 //fsk = 0x22
00315     writereg(RF22_REG_72_FREQUENCY_DEVIATION,0x50);
00316     //set tx power
00317     writereg(RF22_REG_6D_TX_POWER,0x07);    //20dbm
00318     writereg(RF22_REG_3E_PACKET_LENGTH,TX_DATA); //packet length     
00319 }
00320 
00321 Check_ACK_RECEIVED(){
00322 
00323 }
00324 void INC_BEA_LOW_POWER_COUNTER(){
00325     LOW_POWER_COUNTER++;
00326 }