sakthi priya amirtharaj
/
BAE_working_always
i2c working version
beacon.cpp@0:7882d03f59e2, 2015-04-09 (annotated)
- Committer:
- sakthipriya
- Date:
- Thu Apr 09 22:44:39 2015 +0000
- Revision:
- 0:7882d03f59e2
i2c working version
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sakthipriya | 0:7882d03f59e2 | 1 | //switch off the sync!!!!!!! |
sakthipriya | 0:7882d03f59e2 | 2 | //switch off the preamble!!!!!!! |
sakthipriya | 0:7882d03f59e2 | 3 | /*for crc in tx: |
sakthipriya | 0:7882d03f59e2 | 4 | regIrq2(0x28) : |
sakthipriya | 0:7882d03f59e2 | 5 | |
sakthipriya | 0:7882d03f59e2 | 6 | regpacketconfig 1(0x37) : |
sakthipriya | 0:7882d03f59e2 | 7 | set crc detection/calc. on : | 0x10 |
sakthipriya | 0:7882d03f59e2 | 8 | crcautoclearoff : | 0x08 |
sakthipriya | 0:7882d03f59e2 | 9 | |
sakthipriya | 0:7882d03f59e2 | 10 | for data whitening : regpacketconfig 1(0x37) :| 0x40 |
sakthipriya | 0:7882d03f59e2 | 11 | for |
sakthipriya | 0:7882d03f59e2 | 12 | |
sakthipriya | 0:7882d03f59e2 | 13 | |
sakthipriya | 0:7882d03f59e2 | 14 | |
sakthipriya | 0:7882d03f59e2 | 15 | */ |
sakthipriya | 0:7882d03f59e2 | 16 | // 6CC000 for 435 MHz |
sakthipriya | 0:7882d03f59e2 | 17 | //set all values as FF for checking on spectrum analyzer |
sakthipriya | 0:7882d03f59e2 | 18 | #include "beacon.h" |
sakthipriya | 0:7882d03f59e2 | 19 | #include "HK.h" |
sakthipriya | 0:7882d03f59e2 | 20 | Serial chavan(USBTX, USBRX); // tx, rx |
sakthipriya | 0:7882d03f59e2 | 21 | SPI spi(PTD6,PTD7,PTD5); // mosi, miso, sclk |
sakthipriya | 0:7882d03f59e2 | 22 | //DigitalOut cs_bar(PTC11); //slave select or chip select |
sakthipriya | 0:7882d03f59e2 | 23 | DigitalOut cs_bar(PIN6); //slave select or chip select |
sakthipriya | 0:7882d03f59e2 | 24 | |
sakthipriya | 0:7882d03f59e2 | 25 | //InterruptIn button(p9); |
sakthipriya | 0:7882d03f59e2 | 26 | //#define TIMES 16 |
sakthipriya | 0:7882d03f59e2 | 27 | //Timer t; |
sakthipriya | 0:7882d03f59e2 | 28 | |
sakthipriya | 0:7882d03f59e2 | 29 | /*void interrupt_func() |
sakthipriya | 0:7882d03f59e2 | 30 | { |
sakthipriya | 0:7882d03f59e2 | 31 | chavan.printf("INTERRUPT_FUNC TRIGGERED\n wait for 3 secs\n"); |
sakthipriya | 0:7882d03f59e2 | 32 | wait(3); |
sakthipriya | 0:7882d03f59e2 | 33 | |
sakthipriya | 0:7882d03f59e2 | 34 | }*/ |
sakthipriya | 0:7882d03f59e2 | 35 | |
sakthipriya | 0:7882d03f59e2 | 36 | extern ShortBeacy Shortbeacon; |
sakthipriya | 0:7882d03f59e2 | 37 | void writereg(uint8_t reg,uint8_t val) |
sakthipriya | 0:7882d03f59e2 | 38 | { |
sakthipriya | 0:7882d03f59e2 | 39 | cs_bar = 0; |
sakthipriya | 0:7882d03f59e2 | 40 | spi.write(reg | 0x80); |
sakthipriya | 0:7882d03f59e2 | 41 | spi.write(val); |
sakthipriya | 0:7882d03f59e2 | 42 | cs_bar = 1; |
sakthipriya | 0:7882d03f59e2 | 43 | } |
sakthipriya | 0:7882d03f59e2 | 44 | uint8_t readreg(uint8_t reg) |
sakthipriya | 0:7882d03f59e2 | 45 | { |
sakthipriya | 0:7882d03f59e2 | 46 | uint8_t val; |
sakthipriya | 0:7882d03f59e2 | 47 | cs_bar = 0; |
sakthipriya | 0:7882d03f59e2 | 48 | spi.write(reg & ~0x80); |
sakthipriya | 0:7882d03f59e2 | 49 | val = spi.write(0); |
sakthipriya | 0:7882d03f59e2 | 50 | cs_bar = 1; |
sakthipriya | 0:7882d03f59e2 | 51 | return val; |
sakthipriya | 0:7882d03f59e2 | 52 | } |
sakthipriya | 0:7882d03f59e2 | 53 | |
sakthipriya | 0:7882d03f59e2 | 54 | void FUNC_BEA() { |
sakthipriya | 0:7882d03f59e2 | 55 | |
sakthipriya | 0:7882d03f59e2 | 56 | //button.rise(&interrupt_func); //interrupt enabled ( rising edge of pin 9) |
sakthipriya | 0:7882d03f59e2 | 57 | printf("\n\rBeacon function entered\n\r"); |
sakthipriya | 0:7882d03f59e2 | 58 | wait(0.02); //takes 10 ms for POR event + 10ms for safety |
sakthipriya | 0:7882d03f59e2 | 59 | |
sakthipriya | 0:7882d03f59e2 | 60 | uint8_t byte_counter = 0; |
sakthipriya | 0:7882d03f59e2 | 61 | |
sakthipriya | 0:7882d03f59e2 | 62 | /*struct Short_beacon{ |
sakthipriya | 0:7882d03f59e2 | 63 | uint8_t Voltage[1]; |
sakthipriya | 0:7882d03f59e2 | 64 | uint8_t AngularSpeed[2]; |
sakthipriya | 0:7882d03f59e2 | 65 | uint8_t SubsystemStatus[1]; |
sakthipriya | 0:7882d03f59e2 | 66 | uint8_t Temp[3]; |
sakthipriya | 0:7882d03f59e2 | 67 | uint8_t ErrorFlag[1]; |
sakthipriya | 0:7882d03f59e2 | 68 | }Shortbeacon = { {0x22}, {0x22, 0x33} , {0x00},{0x00,0x00,0x00}, {0xFE} }; |
sakthipriya | 0:7882d03f59e2 | 69 | */ |
sakthipriya | 0:7882d03f59e2 | 70 | //filling hk data |
sakthipriya | 0:7882d03f59e2 | 71 | //ShortBeacon Shortbeacon; |
sakthipriya | 0:7882d03f59e2 | 72 | 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]}; |
sakthipriya | 0:7882d03f59e2 | 73 | |
sakthipriya | 0:7882d03f59e2 | 74 | //mask |
sakthipriya | 0:7882d03f59e2 | 75 | //uint8_t mask[] = {0x80, 0x40, 0x20,0x10,0x8,0x4,0x2,0x1}; |
sakthipriya | 0:7882d03f59e2 | 76 | |
sakthipriya | 0:7882d03f59e2 | 77 | for(int i = 0; i < 15 ; i++) |
sakthipriya | 0:7882d03f59e2 | 78 | { |
sakthipriya | 0:7882d03f59e2 | 79 | chavan.printf("0x%X\n\r",(short_beacon[i])); |
sakthipriya | 0:7882d03f59e2 | 80 | } |
sakthipriya | 0:7882d03f59e2 | 81 | |
sakthipriya | 0:7882d03f59e2 | 82 | spi.format(8,0); |
sakthipriya | 0:7882d03f59e2 | 83 | spi.frequency(10000000); //10MHz SCLK frequency(its max for rfm69hcw) |
sakthipriya | 0:7882d03f59e2 | 84 | cs_bar = 1; // Chip must be deselected |
sakthipriya | 0:7882d03f59e2 | 85 | |
sakthipriya | 0:7882d03f59e2 | 86 | //initialization |
sakthipriya | 0:7882d03f59e2 | 87 | //Common configuration registers |
sakthipriya | 0:7882d03f59e2 | 88 | writereg(0x01,0x04); //sequencer on,standby mode |
sakthipriya | 0:7882d03f59e2 | 89 | writereg(0x02,0x08); //packet-mode used , ook modultion , no dc-shaping |
sakthipriya | 0:7882d03f59e2 | 90 | writereg(0x03,0x68); //1200bps datarate |
sakthipriya | 0:7882d03f59e2 | 91 | writereg(0x04,0x2B); //1200bps datarate |
sakthipriya | 0:7882d03f59e2 | 92 | writereg(0x07,0x6C); //Frequency MSB |
sakthipriya | 0:7882d03f59e2 | 93 | writereg(0x08,0xC0); //Frequency MID |
sakthipriya | 0:7882d03f59e2 | 94 | writereg(0x09,0x00); //Frequency LSB ....6C C0 00 for 435 MHZ |
sakthipriya | 0:7882d03f59e2 | 95 | |
sakthipriya | 0:7882d03f59e2 | 96 | //Transmitter registers |
sakthipriya | 0:7882d03f59e2 | 97 | // RegPaLevel(default +13 dBm) |
sakthipriya | 0:7882d03f59e2 | 98 | |
sakthipriya | 0:7882d03f59e2 | 99 | //IRQ and Pin Mapping Registers |
sakthipriya | 0:7882d03f59e2 | 100 | //no DIO mapped yet |
sakthipriya | 0:7882d03f59e2 | 101 | //regirq1(0x27): modeready (8th bit) will be checked for interrupts |
sakthipriya | 0:7882d03f59e2 | 102 | //regIrq2(0x28): fifothresh (5th bit) ,packetsent(3rd bit) will be checked for interrupts |
sakthipriya | 0:7882d03f59e2 | 103 | |
sakthipriya | 0:7882d03f59e2 | 104 | //Packet Engine Registers |
sakthipriya | 0:7882d03f59e2 | 105 | writereg(0x2C,0x00); //set preamble |
sakthipriya | 0:7882d03f59e2 | 106 | writereg(0x2D,0x0A); //set preamble |
sakthipriya | 0:7882d03f59e2 | 107 | writereg(0x2E,0x80); //sync off |
sakthipriya | 0:7882d03f59e2 | 108 | writereg(0x2F,0x5E); //sync word 1 |
sakthipriya | 0:7882d03f59e2 | 109 | writereg(0x37,0x08 | 0x40);// | 0x10); //packetconfig1, 0x40 for data whitening (only for testing) |
sakthipriya | 0:7882d03f59e2 | 110 | writereg(0x38,0x00); //payload length = 0 ... unlimited payload mode |
sakthipriya | 0:7882d03f59e2 | 111 | writereg(0x3C,0xB0); //fifothresh = 48 because we want it cleared once its 40!!!! |
sakthipriya | 0:7882d03f59e2 | 112 | //Initialization complete |
sakthipriya | 0:7882d03f59e2 | 113 | |
sakthipriya | 0:7882d03f59e2 | 114 | //while(chavan.getc() == 't'){ |
sakthipriya | 0:7882d03f59e2 | 115 | //t.start(); |
sakthipriya | 0:7882d03f59e2 | 116 | //Filling Data into FIFO 64 BYTES : eff.32 bits = 4bytes //fread |
sakthipriya | 0:7882d03f59e2 | 117 | cs_bar = 0; |
sakthipriya | 0:7882d03f59e2 | 118 | spi.write(0x80);//fifo write access |
sakthipriya | 0:7882d03f59e2 | 119 | for(byte_counter=0 ; byte_counter<4; byte_counter++) |
sakthipriya | 0:7882d03f59e2 | 120 | { |
sakthipriya | 0:7882d03f59e2 | 121 | for(int i=7; i>=0 ; i--) |
sakthipriya | 0:7882d03f59e2 | 122 | { |
sakthipriya | 0:7882d03f59e2 | 123 | if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!=0) |
sakthipriya | 0:7882d03f59e2 | 124 | //if((short_beacon[byte_counter] & mask[i]) != 0) |
sakthipriya | 0:7882d03f59e2 | 125 | { |
sakthipriya | 0:7882d03f59e2 | 126 | spi.write(0xFF); |
sakthipriya | 0:7882d03f59e2 | 127 | spi.write(0xFF); |
sakthipriya | 0:7882d03f59e2 | 128 | } |
sakthipriya | 0:7882d03f59e2 | 129 | else |
sakthipriya | 0:7882d03f59e2 | 130 | { |
sakthipriya | 0:7882d03f59e2 | 131 | spi.write(0x00); |
sakthipriya | 0:7882d03f59e2 | 132 | spi.write(0x00); |
sakthipriya | 0:7882d03f59e2 | 133 | } |
sakthipriya | 0:7882d03f59e2 | 134 | } |
sakthipriya | 0:7882d03f59e2 | 135 | } |
sakthipriya | 0:7882d03f59e2 | 136 | cs_bar = 1; //cs_bar |
sakthipriya | 0:7882d03f59e2 | 137 | |
sakthipriya | 0:7882d03f59e2 | 138 | //Check for fifoThresh |
sakthipriya | 0:7882d03f59e2 | 139 | printf("\n\rfor loop executed\n\r"); |
sakthipriya | 0:7882d03f59e2 | 140 | while((readreg(0x28) & 0x20) != 0x20); |
sakthipriya | 0:7882d03f59e2 | 141 | printf("\n\rwhile loop executed\n\r"); |
sakthipriya | 0:7882d03f59e2 | 142 | //Highpower settings |
sakthipriya | 0:7882d03f59e2 | 143 | writereg(0x11,0x7F); //RegPalevel (20db) //~ |
sakthipriya | 0:7882d03f59e2 | 144 | writereg(0x13,0x0F); //RegOCP |
sakthipriya | 0:7882d03f59e2 | 145 | writereg(0x5A,0x5D); //RegTestPa1 |
sakthipriya | 0:7882d03f59e2 | 146 | writereg(0x5C,0x7C); //RegTestPa2 |
sakthipriya | 0:7882d03f59e2 | 147 | |
sakthipriya | 0:7882d03f59e2 | 148 | //Set to Tx mode |
sakthipriya | 0:7882d03f59e2 | 149 | writereg(0x01,0x0C); |
sakthipriya | 0:7882d03f59e2 | 150 | |
sakthipriya | 0:7882d03f59e2 | 151 | printf("\n\rpre 2nd while loop\n\r"); |
sakthipriya | 0:7882d03f59e2 | 152 | //Check for fifoThresh |
sakthipriya | 0:7882d03f59e2 | 153 | while((readreg(0x28) & 0x20) != 0x00); |
sakthipriya | 0:7882d03f59e2 | 154 | printf("\n\r2nd while loop executed\n\r"); |
sakthipriya | 0:7882d03f59e2 | 155 | while(byte_counter!=15){ |
sakthipriya | 0:7882d03f59e2 | 156 | |
sakthipriya | 0:7882d03f59e2 | 157 | //writing again |
sakthipriya | 0:7882d03f59e2 | 158 | cs_bar = 0; |
sakthipriya | 0:7882d03f59e2 | 159 | spi.write(0x80); |
sakthipriya | 0:7882d03f59e2 | 160 | for(int i=7; i>=0 ;i--) |
sakthipriya | 0:7882d03f59e2 | 161 | { |
sakthipriya | 0:7882d03f59e2 | 162 | if((short_beacon[byte_counter] & (uint8_t) pow(2.0,i))!=0) |
sakthipriya | 0:7882d03f59e2 | 163 | //if((short_beacon[byte_counter] & mask[i]) != 0) |
sakthipriya | 0:7882d03f59e2 | 164 | { |
sakthipriya | 0:7882d03f59e2 | 165 | spi.write(0xFF); |
sakthipriya | 0:7882d03f59e2 | 166 | spi.write(0xFF); |
sakthipriya | 0:7882d03f59e2 | 167 | } |
sakthipriya | 0:7882d03f59e2 | 168 | else |
sakthipriya | 0:7882d03f59e2 | 169 | { |
sakthipriya | 0:7882d03f59e2 | 170 | spi.write(0x00); |
sakthipriya | 0:7882d03f59e2 | 171 | spi.write(0x00); |
sakthipriya | 0:7882d03f59e2 | 172 | } |
sakthipriya | 0:7882d03f59e2 | 173 | } |
sakthipriya | 0:7882d03f59e2 | 174 | cs_bar = 1; |
sakthipriya | 0:7882d03f59e2 | 175 | byte_counter++; |
sakthipriya | 0:7882d03f59e2 | 176 | |
sakthipriya | 0:7882d03f59e2 | 177 | //Check for fifoThresh |
sakthipriya | 0:7882d03f59e2 | 178 | while((readreg(0x28) & 0x20) != 0x00); |
sakthipriya | 0:7882d03f59e2 | 179 | } |
sakthipriya | 0:7882d03f59e2 | 180 | printf("\n\r3rd big while loop executed\n\r"); |
sakthipriya | 0:7882d03f59e2 | 181 | //wait for packet sent bit to fire |
sakthipriya | 0:7882d03f59e2 | 182 | while((readreg(0x28) & 0x08) != 0x08); |
sakthipriya | 0:7882d03f59e2 | 183 | printf("\n\r4th while loop executed\n\r"); |
sakthipriya | 0:7882d03f59e2 | 184 | //chavan.printf("packet sent!!! \n\r"); |
sakthipriya | 0:7882d03f59e2 | 185 | |
sakthipriya | 0:7882d03f59e2 | 186 | //Switch back to Standby Mode |
sakthipriya | 0:7882d03f59e2 | 187 | writereg(0x01,0x04); |
sakthipriya | 0:7882d03f59e2 | 188 | |
sakthipriya | 0:7882d03f59e2 | 189 | //Lowpowermode |
sakthipriya | 0:7882d03f59e2 | 190 | writereg(0x11,0x9F); //RegPalevel (13db) |
sakthipriya | 0:7882d03f59e2 | 191 | writereg(0x13,0x1A); //RegOCP |
sakthipriya | 0:7882d03f59e2 | 192 | writereg(0x5A,0x55); //RegTestPa1(setting PA_BOOST on RFIO) |
sakthipriya | 0:7882d03f59e2 | 193 | writereg(0x5C,0x70); //RegTestPa2(setting PA_BOOST on RFIO) |
sakthipriya | 0:7882d03f59e2 | 194 | |
sakthipriya | 0:7882d03f59e2 | 195 | //wait for modeready |
sakthipriya | 0:7882d03f59e2 | 196 | while((readreg(0x27)&0x80)!=0x80); |
sakthipriya | 0:7882d03f59e2 | 197 | |
sakthipriya | 0:7882d03f59e2 | 198 | //t.stop(); |
sakthipriya | 0:7882d03f59e2 | 199 | //chavan.printf(" time taken to init + transmit = %f \n", t.read()) ; |
sakthipriya | 0:7882d03f59e2 | 200 | //} |
sakthipriya | 0:7882d03f59e2 | 201 | printf("\n\rBeacon function exiting\n\r"); |
sakthipriya | 0:7882d03f59e2 | 202 | } |