sakthi priya amirtharaj
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pcb_test_v1_1_1
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pcb_test_v1_1
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sakthi priya amirtharaj
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beacon.cpp
00001 //switch off the sync!!!!!!! 00002 //switch off the preamble!!!!!!! 00003 /*for crc in tx: 00004 regIrq2(0x28) : 00005 00006 regpacketconfig 1(0x37) : 00007 set crc detection/calc. on : | 0x10 00008 crcautoclearoff : | 0x08 00009 00010 for data whitening : regpacketconfig 1(0x37) :| 0x40 00011 for 00012 00013 00014 00015 */ 00016 // 6CC000 for 435 MHz 00017 //set all values as FF for checking on spectrum analyzer 00018 #include "beacon.h" 00019 #include "HK.h" 00020 #include "pin_config.h" 00021 Serial chavan(USBTX, USBRX); // tx, rx 00022 //SPI spi(PIN2,PIN1,PIN3); // mosi, miso, sclk 00023 DigitalOut cs_bar(PIN6); //slave select or chip select 00024 SPI spi(PTD6,PTD7,PTD5); // mosi, miso, sclk 00025 //DigitalOut cs_bar(PTC11); //slave select or chip select 00026 //InterruptIn button(p9); 00027 //#define TIMES 16 00028 //Timer t; 00029 00030 /*void interrupt_func() 00031 { 00032 chavan.printf("INTERRUPT_FUNC TRIGGERED\n wait for 3 secs\n"); 00033 wait(3); 00034 00035 }*/ 00036 00037 extern ShortBeacy Shortbeacon; 00038 void writereg(uint8_t reg,uint8_t val) 00039 { 00040 cs_bar = 0; 00041 spi.write(reg | 0x80); 00042 spi.write(val); 00043 cs_bar = 1; 00044 } 00045 uint8_t readreg(uint8_t reg) 00046 { 00047 uint8_t val; 00048 cs_bar = 0; 00049 spi.write(reg & ~0x80); 00050 val = spi.write(0); 00051 cs_bar = 1; 00052 return val; 00053 } 00054 00055 void FUNC_BEA() { 00056 00057 //button.rise(&interrupt_func); //interrupt enabled ( rising edge of pin 9) 00058 printf("\n\rBeacon function entered\n\r"); 00059 wait(0.02); //takes 10 ms for POR event + 10ms for safety 00060 00061 uint8_t byte_counter = 0; 00062 00063 /*struct Short_beacon{ 00064 uint8_t Voltage[1]; 00065 uint8_t AngularSpeed[2]; 00066 uint8_t SubsystemStatus[1]; 00067 uint8_t Temp[3]; 00068 uint8_t ErrorFlag[1]; 00069 }Shortbeacon = { {0x22}, {0x22, 0x33} , {0x00},{0x00,0x00,0x00}, {0xFE} }; 00070 */ 00071 //filling hk data 00072 //ShortBeacon Shortbeacon; 00073 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]}; 00074 00075 //mask 00076 //uint8_t mask[] = {0x80, 0x40, 0x20,0x10,0x8,0x4,0x2,0x1}; 00077 00078 for(int i = 0; i < 15 ; i++) 00079 { 00080 chavan.printf("0x%X\n\r",(short_beacon[i])); 00081 } 00082 00083 spi.format(8,0); 00084 spi.frequency(10000000); //10MHz SCLK frequency(its max for rfm69hcw) 00085 cs_bar = 1; // Chip must be deselected 00086 00087 //initialization 00088 //Common configuration registers 00089 writereg(0x01,0x04); //sequencer on,standby mode 00090 writereg(0x02,0x08); //packet-mode used , ook modultion , no dc-shaping 00091 writereg(0x03,0x68); //1200bps datarate 00092 writereg(0x04,0x2B); //1200bps datarate 00093 writereg(0x07,0x6C); //Frequency MSB 00094 writereg(0x08,0xC0); //Frequency MID 00095 writereg(0x09,0x00); //Frequency LSB ....6C C0 00 for 435 MHZ 00096 00097 //Transmitter registers 00098 // RegPaLevel(default +13 dBm) 00099 00100 //IRQ and Pin Mapping Registers 00101 //no DIO mapped yet 00102 //regirq1(0x27): modeready (8th bit) will be checked for interrupts 00103 //regIrq2(0x28): fifothresh (5th bit) ,packetsent(3rd bit) will be checked for interrupts 00104 00105 //Packet Engine Registers 00106 writereg(0x2C,0x00); //set preamble 00107 writereg(0x2D,0x0A); //set preamble 00108 writereg(0x2E,0x80); //sync off 00109 writereg(0x2F,0x5E); //sync word 1 00110 writereg(0x37,0x08 | 0x40);// | 0x10); //packetconfig1, 0x40 for data whitening (only for testing) 00111 writereg(0x38,0x00); //payload length = 0 ... unlimited payload mode 00112 writereg(0x3C,0xB0); //fifothresh = 48 because we want it cleared once its 40!!!! 00113 //Initialization complete 00114 00115 //while(chavan.getc() == 't'){ 00116 //t.start(); 00117 //Filling Data into FIFO 64 BYTES : eff.32 bits = 4bytes //fread 00118 cs_bar = 0; 00119 spi.write(0x80);//fifo write access 00120 for(byte_counter=0 ; byte_counter<4; byte_counter++) 00121 { 00122 for(int i=7; i>=0 ; i--) 00123 { 00124 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!=0) 00125 //if((short_beacon[byte_counter] & mask[i]) != 0) 00126 { 00127 spi.write(0xFF); 00128 spi.write(0xFF); 00129 } 00130 else 00131 { 00132 spi.write(0x00); 00133 spi.write(0x00); 00134 } 00135 } 00136 } 00137 cs_bar = 1; //cs_bar 00138 00139 //Check for fifoThresh 00140 printf("\n\rfor loop executed\n\r"); 00141 while((readreg(0x28) & 0x20) != 0x20); 00142 printf("\n\rwhile loop executed\n\r"); 00143 //Highpower settings 00144 writereg(0x11,0x7F); //RegPalevel (20db) //~ 00145 writereg(0x13,0x0F); //RegOCP 00146 writereg(0x5A,0x5D); //RegTestPa1 00147 writereg(0x5C,0x7C); //RegTestPa2 00148 00149 //Set to Tx mode 00150 writereg(0x01,0x0C); 00151 00152 printf("\n\rpre 2nd while loop\n\r"); 00153 //Check for fifoThresh 00154 while((readreg(0x28) & 0x20) != 0x00); 00155 printf("\n\r2nd while loop executed\n\r"); 00156 while(byte_counter!=15){ 00157 00158 //writing again 00159 cs_bar = 0; 00160 spi.write(0x80); 00161 for(int i=7; i>=0 ;i--) 00162 { 00163 if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!=0) 00164 //if((short_beacon[byte_counter] & mask[i]) != 0) 00165 { 00166 spi.write(0xFF); 00167 spi.write(0xFF); 00168 } 00169 else 00170 { 00171 spi.write(0x00); 00172 spi.write(0x00); 00173 } 00174 } 00175 cs_bar = 1; 00176 byte_counter++; 00177 00178 //Check for fifoThresh 00179 while((readreg(0x28) & 0x20) != 0x00); 00180 } 00181 printf("\n\r3rd big while loop executed\n\r"); 00182 //wait for packet sent bit to fire 00183 while((readreg(0x28) & 0x08) != 0x08); 00184 printf("\n\r4th while loop executed\n\r"); 00185 //chavan.printf("packet sent!!! \n\r"); 00186 00187 //Switch back to Standby Mode 00188 writereg(0x01,0x04); 00189 00190 //Lowpowermode 00191 writereg(0x11,0x9F); //RegPalevel (13db) 00192 writereg(0x13,0x1A); //RegOCP 00193 writereg(0x5A,0x55); //RegTestPa1(setting PA_BOOST on RFIO) 00194 writereg(0x5C,0x70); //RegTestPa2(setting PA_BOOST on RFIO) 00195 00196 //wait for modeready 00197 while((readreg(0x27)&0x80)!=0x80); 00198 00199 //t.stop(); 00200 //chavan.printf(" time taken to init + transmit = %f \n", t.read()) ; 00201 //} 00202 printf("\n\rBeacon function exiting\n\r"); 00203 }
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