![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Final Beacon code for testing
main.cpp
- Committer:
- shekhar
- Date:
- 2015-10-22
- Revision:
- 2:44b63c859531
- Parent:
- 1:8b18c140a710
File content as of revision 2:44b63c859531:
#include "tx.h" #include <stdio.h> Ticker loop; Serial pc(USBTX, USBRX); //tx,rx SPI spi(D11, D12, D13); // mosi, miso, sclk DigitalOut cs(D10); //slave select or chip select int once = 1; Timer t; void P_BCN_INIT() { BCN_INIT_STATUS = 1; //check initialization parameters Init_BEACON_HW(); //t.start(); BCN_INIT_STATUS = 0; } void P_BCN_FEN() { BCN_FEN = 1; } void P_BCN_TX_MAIN() { pc.printf("line 25"); BCN_TX_MAIN_STATUS = 1; if(BCN_FEN == 1) { pc.printf("line 30"); if(BCN_TX_EN == 1) { pc.printf("line 33"); //Measure and store BCN temperature in BCN_TS_BUFFER BCN_TS_BUFFER = check_Temperature(); pc.printf("\n\ntemperature = %d\n\n",BCN_TS_BUFFER); pc.printf("line 36"); //Get BCN_HK data from BCN HW(SPI) //Store BCN_HK data in BCN_HK_BUFFER if(BCN_STANDBY == 1 ) { pc.printf("line 40"); Set_BCN_TX_STATUS(BCN_TX_STANDBY); BCN_TX_MAIN_STATUS = 0; // break; } else { //pc.printf("in BCN_TX_STANDBY != 1\r\n"); pc.printf("line 49"); t.start(); int begin = t.read_us(); //pc.printf("line 52"); SHORT_BCN_TX(); LONG_BCN_TX(); //pc.printf("line 55"); t.stop(); int end = t.read_us(); pc.printf("The time required for short and long is %d seconds\r\n", end-begin); pc.printf("Short and Long packets sent\r\n"); //include LONG_BCN_TX also if(Check_ACK_RECEIVED() == 1) { Set_BCN_TX_STATUS(BCN_TX_SUCCESS); BCN_TX_MAIN_STATUS = 0; // break; } else { Set_BCN_TX_STATUS(BCN_TX_FAILURE); BCN_TX_MAIN_STATUS = 0; // break; } } } else { Set_BCN_TX_STATUS(BCN_TX_DISABLED); BCN_TX_MAIN_STATUS = 0; // break; } } else { Set_BCN_TX_STATUS(BCN_RF_SILENCE); //Window of RF Silence: None of the Txs should be on. BCN_TX_MAIN_STATUS = 0; // break; } } void Set_BCN_TX_STATUS(uint8_t STATUS) { BCN_TX_STATUS = STATUS; } int check_Temperature() { int temperature; //P_BCN_INIT(); writereg(RF22_REG_0F_ADC_CONFIGURATION,0x80); //128 = 10000000 writereg(RF22_REG_12_Temperature_Sensor_Calibration,0x20); //160 == 10100000 32 == 00100000 wait(1); temperature = readreg(RF22_REG_11_ADC_Value); temperature = (float)temperature*0.5 - 64; return temperature; } void SHORT_BCN_TX() { writereg(RF22_REG_6E_TX_DATA_RATE,0x01); writereg(RF22_REG_6F_TX_DATA_RATE,0x4F);//160bps writereg(RF22_REG_3E_PACKET_LENGTH,SHORT_TX_DATA); //short packet length /* init(); //init complete pc.printf("init complete.....press t to send\n"); while(pc.getc()=='t') { */ //button.rise(&interrupt_func); //interrupt enabled ( rising edge of pin 9) wait(0.02); // pl. update this value or even avoid it!!! int i=0; //extract values from short_beacon[] struct Short_beacon { uint8_t Voltage[1]; uint8_t AngularSpeed[2]; uint8_t SubsystemStatus[1]; uint8_t Temp[3]; uint8_t ErrorFlag[1]; }Shortbeacon = { {0x88}, {0x99, 0xAA} , {0xAA},{0xAA,0xDD,0xEE}, {0x00} }; //filling hk data //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]}; 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]}; //uint8_t Short_beacon[15]; // for(int i = 0;i<15;i++) // { // Long_beacon[i] = 0xAA; // } //writereg(RF22_REG_07_OPERATING_MODE1,0x01); //ready mode ?? clearTxBuf(); //writing data first time int byte = 0; cs = 0; spi.write(0xFF); pc.printf("line 151"); for (int byte_counter = 0; byte_counter <15 ; byte_counter++) { for(int j = 3; j >= 0 ; j--) { if((short_beacon[byte_counter] & (uint8_t) pow(2.0,(j*2+1)))!= pow(2.0,(j*2+1))) { byte=0x00; } else { byte=0xF0; } if((short_beacon[byte_counter] & (uint8_t) pow(2.0,j*2))!= pow(2.0,j*2)) { byte=byte | 0x00; } else { byte=byte | 0x0F; } spi.write(byte); } } cs = 1; pc.printf("line 177\n"); //Set to Tx mode writereg(RF22_REG_07_OPERATING_MODE1,0x09); //Check for fifoThresh while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20); //pc.printf("fifothresh1?\n"); pc.printf("line 184\n"); //rf22.waitPacketSent(); while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) != 0x04); //pc.printf(" chk pkt sent!\r\n"); pc.printf("Short packet sent\r\n"); } void LONG_BCN_TX() { writereg(RF22_REG_6E_TX_DATA_RATE,0x04); writereg(RF22_REG_6F_TX_DATA_RATE,0xea); writereg(RF22_REG_3E_PACKET_LENGTH,LONG_TX_DATA); //long packet length wait(0.02); // pl. update this value or even avoid it!!! //extract values from long_beacon[] //uint8_t Long_beacon[] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,Longbeacon.Voltage[0],Longbeacon.AngularSpeed[0], Longbeacon.AngularSpeed[1],Longbeacon.SubsystemStatus[0],Longbeacon.Temp[0],Longbeacon.Temp[1],Longbeacon.Temp[2],Longbeacon.ErrorFlag[0]}; uint8_t Long_beacon[75]; for(int i = 0;i<75;i++) { Long_beacon[i] = 0xA0; } //setModeIdle(); writereg(RF22_REG_07_OPERATING_MODE1,0x01); //ready mode clearTxBuf(); //writing data first time cs = 0; spi.write(0xFF); for(int i=0; i<60;i++) { spi.write(Long_beacon[i]); } cs = 1; //Set to Tx mode writereg(RF22_REG_07_OPERATING_MODE1,0x09); //Check for fifoThresh while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20); //pc.printf("fifothresh1?\n"); //writing data first time cs = 0; spi.write(0xFF); for(int i=60; i<75;i++) { spi.write(Long_beacon[i]); } cs = 1; wait(0.01); //Check for fifoThresh while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20); //pc.printf("fifothresh2?\n"); //rf22.waitPacketSent(); while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) != 0x04); //pc.printf(" chk pkt sent!]\r\n"); pc.printf("Long packet sent\r\n"); } void writereg(uint8_t reg,uint8_t val) { cs = 0;__disable_irq();spi.write(reg | 0x80);spi.write(val);__enable_irq();cs = 1; } uint8_t readreg(uint8_t reg) { int val;cs = 0;__disable_irq();spi.write(reg & ~0x80);val = spi.write(0);__enable_irq();cs = 1;return val; } void clearTxBuf() { writereg(RF22_REG_08_OPERATING_MODE2,0x01); writereg(RF22_REG_08_OPERATING_MODE2,0x00); } int setFrequency(double centre) { //freq setting begins uint8_t fbsel = 0x40; if (centre >= 480.0) { centre /= 2; fbsel |= 0x20; } else return false; centre /= 10.0; double integerPart = floor(centre); double fractionalPart = centre - integerPart; uint8_t fb = (uint8_t)integerPart - 24; // Range 0 to 23 fbsel |= fb; uint16_t fc = fractionalPart * 64000; writereg(RF22_REG_73_FREQUENCY_OFFSET1, 0); // REVISIT writereg(RF22_REG_74_FREQUENCY_OFFSET2, 0); writereg(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel); writereg(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8); writereg(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff); return 0; } void Init_BEACON_HW() { cs=1; // chip must be deselected //wait(1); //change the time later spi.format(8,0); spi.frequency(10000000); //10MHz SCLK //should either have a flag for invalid SPI or discard this for actual case or add reset if (readreg(RF22_REG_00_DEVICE_TYPE) == 0x08) pc.printf("spi connection valid\r\n"); else pc.printf("error in spi connection\r\n"); //reset() writereg(RF22_REG_07_OPERATING_MODE1,0x80); //sw_reset wait(1); //takes time to reset clearTxBuf(); //txfifoalmostempty writereg(RF22_REG_7D_TX_FIFO_CONTROL2,10); //Packet-engine registers writereg(RF22_REG_30_DATA_ACCESS_CONTROL,0x00); //RF22_REG_30_DATA_ACCESS_CONTROL, RF22_ENPACRX | RF22_ENPACTX | RF22_ENCRC | RF22_CRC_CRC_16_IBM //&0x77 = diasable packet rx-tx handling writereg(RF22_REG_33_HEADER_CONTROL2,0x08); //RF22_REG_33_HEADER_CONTROL2, RF22_HDLEN_4 | RF22_SYNCLEN_2 writereg(RF22_REG_34_PREAMBLE_LENGTH,0x00); //RF22_REG_34_PREAMBLE_LENGTH, nibbles); preamble length = 8; //may be redundant since packethandler is disabled writereg(RF22_REG_0B_GPIO_CONFIGURATION0,0x15); // TX state ?? writereg(RF22_REG_0C_GPIO_CONFIGURATION1,0x12); // RX state ?? //interrupts // spiWrite(RF22_REG_05_INTERRUPT_ENABLE1, RF22_ENTXFFAEM |RF22_ENRXFFAFULL | RF22_ENPKSENT |RF22_ENPKVALID| RF22_ENCRCERROR); // spiWrite(RF22_REG_06_INTERRUPT_ENABLE2, RF22_ENPREAVAL); setFrequency(435.0); //This may not be required if((readreg(RF22_REG_02_DEVICE_STATUS)& 0x08)!= 0x00) pc.printf("frequency not set properly\r\n"); //frequency set //setModemConfig(FSK_Rb2_4Fd36); FSK_Rb2_4Fd36, ///< FSK, No Manchester, Rb = 2.4kbs, Fd = 36kHz //setmodemregisters //0x1b, 0x03, 0x41, 0x60, 0x27, 0x52, 0x00, 0x07, 0x40, 0x0a, 0x1e, 0x80, 0x60, 0x13, 0xa9, 0x2c, 0x22, 0x3a = FSK_RB2_4FD36 //0xc8, 0x03, 0x39, 0x20, 0x68, 0xdc, 0x00, 0x6b, 0x2a, 0x08, 0x2a, 0x80, 0x60, 0x13, 0xa9, 0x2c, 0x21, 0x08 = OOK,2.4, 335 writereg(RF22_REG_1C_IF_FILTER_BANDWIDTH,0xdf); writereg(RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE,0x03); writereg(RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE,0x39); writereg(RF22_REG_21_CLOCK_RECOVERY_OFFSET2,0x20); writereg(RF22_REG_22_CLOCK_RECOVERY_OFFSET1,0x68); //updated 20 to 25 reg values from excel sheet for 1.2 Khz freq. deviation,fsk writereg(RF22_REG_23_CLOCK_RECOVERY_OFFSET0,0xdc); writereg(RF22_REG_24_CLOCK_RECOVERY_TIMING_LOOP_GAIN1,0x00); writereg(RF22_REG_25_CLOCK_RECOVERY_TIMING_LOOP_GAIN0,0x6B); writereg(RF22_REG_2C_OOK_COUNTER_VALUE_1,0x2C); writereg(RF22_REG_2D_OOK_COUNTER_VALUE_2,0x11); //not required for fsk (OOK counter value) writereg(RF22_REG_2E_SLICER_PEAK_HOLD,0x2A); //?? writereg(RF22_REG_58,0x80); writereg(RF22_REG_69_AGC_OVERRIDE1,0x60); //writereg(RF22_REG_6E_TX_DATA_RATE_0.125_1,0x09);//written later //writereg(RF22_REG_6F_TX_DATA_RATE_0.125_0,0xd5);//written later writereg(RF22_REG_70_MODULATION_CONTROL1,0x20);//changed from 0x2c to 0x20 since machester is not required writereg(RF22_REG_71_MODULATION_CONTROL2,0x21);//ook = 0x21 //fsk = 0x22 //writereg(RF22_REG_72_FREQUENCY_DEVIATION,0x50); //required for OOK??? //set tx power writereg(RF22_REG_6D_TX_POWER,0x07); //20dbm //why 0x06?? 0x07 is for max//is the previous bits required? //writereg(RF22_REG_3E_PACKET_LENGTH,SHORT_TX_DATA); //short packet length //written later } bool Check_ACK_RECEIVED() { //logic: if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04) //bit is set if the data packet is sent correctly { printf("Packet sent: ACK received\r\n"); return 1; //for ACK received: yes } else { pc.printf("Packet not sent\r\n"); return 0; //actual value //return 1; //to make this function work in any condition //Why?? } } int main() { pc.printf("entered main"); int temp, final_temp; P_BCN_INIT(); pc.printf("completed bcn_init"); writereg(RF22_REG_07_OPERATING_MODE1,0x00); //standby mode t.start(); //loop.attach(&P_BCN_TX_MAIN, 10.0); pc.printf("loop_attached"); while (t.read() < RF_SILENCE_TIME); P_BCN_FEN(); P_BCN_TX_MAIN(); t.stop(); while(1) { P_BCN_TX_MAIN(); //temp = check_Temperature(); // final_temp = (float)temp*0.5 - 64; // P_BCN_INIT(); // pc.printf("final temp = %d\r\n", final_temp); } //while(1) // { // temp = check_Temperature(); // final_temp = (float)temp*0.5 - 64; // pc.printf("Temperature: %d\r\n", final_temp); // wait(900); //15 minutes // } while(1) { //pc.printf("%d\n",BCN_TS_BUFFER); //display statuses or wait //BCN_INIT_STATUS //BCN_TX_MAIN_STATUS //BCN_TX_STATUS //BCN_TX_EN //BCN_FEN //BCN_STANDBY } }