Optisk dataoverførsel til en microcontroller - Danmarks Tekniske ...

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eceived checksum byte with check byte in cell 1 data_buffer + ASCII_OFFSET); eeprom_read(CHECK_BYTE_ADR + bank_temp)){ data_byte-1); // activate temporary bank DATA_BANK_EMPTY); // inactivate other bank TIMEOUT/NUMBER_OF_LEDS*LED_SPEED; } // main } // operation operation = OP_READY; break; // end of false mode case(MODE_RECEIVE): // receiving data if(data_buffer != STOP_BYTE){ // more text // calculate weighted sum - ignore checksum += data_byte * data_buffer; // store data in temporary bank starting eeprom_write(++data_byte + bank_temp, // wait for next byte operation = OP_READY; } else { // stop byte detected // calculate checksum from weighted sum checksum %= MODULO; } } // mode control // reset data buffer data_buffer_next = 0; data_buffer = 0; break; // end of OP_MODE // check to see if checksum is valid if(checksum + ASCII_OFFSET == // store data length eeprom_write(bank_temp, eeprom_write(bank_active, // change bank bank_select(); idle_time = 0; led_unit = operation = OP_FINISH; } else { // checksum not valid idle_time = 0; operation = OP_READY; } mode = MODE_NONE; break; // end of MODE_RECEIVE case(OP_FINISH): // data successfully received if(idle_time >= TIMEOUT/2) operation = OP_RESET; led_value = (1 > 1; break; // end of OP_FINISH // LED control display(led_value); // display status on wavecard // signal debugging - scope on port RA7 RA7 = digital_value; } // forever... 78 Bilag D - Kildekode
it-manipulated square wave generation void square_wave(void){ value trigger value signed int signal_low_margin = 0; signed int signal_high_margin = 0; unsigned int trigger_low = 0; unsigned int trigger_high = 0; // define signal margins according to last measure signal_high_margin = mean_signal_old + MEAN_SIGNAL_OFFSET_VALUE; signal_low_margin = mean_signal_old - MEAN_SIGNAL_OFFSET_VALUE; // define when signal triggers the edge trigger_high = (signal_high_margin * SIGNAL_TRIGGER_LEVEL_PCT) / 100; trigger_low = (signal_low_margin * SIGNAL_TRIGGER_LEVEL_PCT) / 100; if(mean_signal >= (signal_high_margin+trigger_high)){ // signal above trigger if(digital_value != LOW){ // signal has changed edge_detected = true; digital_value = LOW; } } else if(mean_signal
Page 1:
“Optisk dataoverførsel til en mi
Page 4 and 5:
Indhold Forord.....................
Page 6 and 7:
1 Indledning Der er, specielt i USA
Page 8 and 9:
2 Forundersøgelse Følgende afsnit
Page 10 and 11:
2.5 Kravspecifikation I tabel 1 her
Page 12 and 13:
2.8 Tidsplan Der er for projektet u
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komme i kontakt med de enkelte ben
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(ca. 4 V) og et strømforbrug for h
Page 18 and 19:
4 Test-applikation Der skal udarbej
Page 20 and 21:
”haler” efter musen, som det ka
Page 22 and 23:
fokusere på binær datatransmissio
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håndteres vil system-ressurcerne f
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private void createGUI() { ... look
Page 28 and 29: Testen har til formål at verificer
Page 30 and 31: 5 Modtager Der er i det foregående
Page 32 and 33: Ønskes en endnu mere brugervenlig
Page 34 and 35: for dette signal når ned på omkri
Page 36 and 37: Inden for emnet datakommunikation b
Page 38 and 39: at indsætte et mellemrum mellem m
Page 40 and 41: 5.2.4 Kommandoer I tilstandsmaskine
Page 42 and 43: 5.3.5.1 Tjeksum Data-blokkene best
Page 44 and 45: Efter at have afsluttet de krævend
Page 46 and 47: Modtageren sættes til at modtage d
Page 48 and 49: 6 Sender Test-applikationen viste s
Page 50 and 51: 6.3 Implementering Som vist i desig
Page 52 and 53: 6.3.3 Dynamisk hjemmeside Senderen
Page 54 and 55: Mens modtageren stadig viser period
Page 56 and 57: 7 Udvidelser Udviklingsafdelingen b
Page 58 and 59: 8 Konklusion På baggrund af de udf
Page 60 and 61: Bilag A - Tidsplan Der afsættes en
Page 62 and 63: Bilag B - Logbog Her følger en ove
Page 64 and 65: tor. 24. jan. Opsætning af microco
Page 66 and 67: PIC Programmable Interface Controll
Page 68 and 69: Debugging private JLabel periodLabe
Page 70 and 71: outputPanel.setHighContrast( ((Inte
Page 72 and 73: } public void setLowContrast(int lo
Page 74 and 75: This browser does not have a Java P
Page 76 and 77: mode +read_char); // ** testing **
Page 80 and 81: BIT_CLR clears in 'obj', the bits t
Page 82 and 83: normal operation extern unsigned ch
Page 84 and 85: private static final long serialVer
Page 86 and 87: statusPanel = new JPanel(); statusP
Page 88 and 89: 8.2.1 D.3.2 DataPanel.java (version
Page 90 and 91: } catch (InterruptedException e) {
Page 92 and 93: Color highColor = new Color(getHigh
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Optisk dataoverførsel til en microcontroller - Danmarks Tekniske ...

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