1 | //Pins
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2 | # define SENS_CLK_PIN (13) // 13=PB5 CLK
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3 | # define SENS_MISO_PIN (12) // 12=PB4 MISO
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4 | # define SENS_MOSI_PIN (11) // 11=PB3 MOSI
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5 |
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6 | # define SENS_CS_PIN ( 0)
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7 | # define SENS_CS_ENABLE() PORTD |= (1<<0) // PB2->1
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8 | # define SENS_CS_DISABLE() PORTD &= ~(1<<0) // PB2->0
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9 |
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10 |
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11 | char tmp[1];
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12 |
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13 |
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14 | void Sens_writeSPI(uint8_t data);
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15 | uint8_t Sens_readSPI(uint8_t data);
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16 | void RESET(void);
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17 |
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18 |
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19 | uint8_t Sens_readSPI(uint8_t data)
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20 | {
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21 | PORTD ^= ( 1 << PIND1 ); // TOGGLE LED---------------------------------------------------------------
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22 |
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23 | SPDR = data; //read-command
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24 | while(!(SPSR & (1<<SPIF)));
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25 | return SPDR;
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26 | }
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27 |
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28 |
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29 | void Sens_writeSPI(uint8_t data)
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30 | {
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31 | SPDR = data; //write-command
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32 | while(!(SPSR & (1<<SPIF)));
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33 | return;
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34 | }
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35 |
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36 |
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37 | //------------ PROGRAMMABLAUF ----------
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38 |
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39 | void loop()
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40 | {
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41 | while(1)
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42 | {
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43 | uint8_t temp[23];
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44 |
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45 | // Register auslesen
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46 | SPCR = SPCR | (1<<CPHA);
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47 |
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48 | PORTD &=~ (1<<PIND0); //CS-Sensor Enable
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49 |
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50 | Sens_writeSPI(0x00 | 0x80); // Erstes Register ab dem gelesen wird. rw-bit = 1
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51 |
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52 | temp[0] = Sens_readSPI(0x00); // Datenregister des Sensors
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53 | temp[1] = Sens_readSPI(0x01); // Datenregister des Sensors
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54 | temp[2] = Sens_readSPI(0x02); // Datenregister des Sensors
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55 | temp[3] = Sens_readSPI(0x03); // Datenregister des Sensors
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56 | temp[4] = Sens_readSPI(0x04); // Datenregister des Sensors
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57 | temp[5] = Sens_readSPI(0x05); // Datenregister des Sensors
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58 | temp[6] = Sens_readSPI(0x06); // Datenregister des Sensors
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59 | temp[7] = Sens_readSPI(0x07); // Datenregister des Sensors
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60 | temp[8] = Sens_readSPI(0x08); // Datenregister des Sensors
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61 | temp[9] = Sens_readSPI(0x09); // Datenregister des Sensors
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62 | temp[10] = Sens_readSPI(0x0a); // Datenregister des Sensors
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63 | temp[11] = Sens_readSPI(0x0b); // Datenregister des Sensors
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64 | temp[12] = Sens_readSPI(0x0c); // Datenregister des Sensors
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65 | temp[13] = Sens_readSPI(0x0d); // Datenregister des Sensors
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66 | temp[14] = Sens_readSPI(0x0e); // Datenregister des Sensors
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67 | temp[15] = Sens_readSPI(0x0f); // Datenregister des Sensors
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68 | temp[16] = Sens_readSPI(0x10); // Datenregister des Sensors
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69 | temp[17] = Sens_readSPI(0x11); // Datenregister des Sensors
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70 | temp[18] = Sens_readSPI(0x12); // Datenregister des Sensors
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71 | temp[19] = Sens_readSPI(0x13); // Datenregister des Sensors
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72 | temp[20] = Sens_readSPI(0x14); // Datenregister des Sensors
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73 | temp[21] = Sens_readSPI(0x15); // Datenregister des Sensors
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74 |
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75 | PORTD |= (1<<PIND0); //CS-Sensor Disable
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76 | delay(1);
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77 |
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78 | SPCR = SPCR & ~(1<<CPHA);
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79 |
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80 | PORTD ^= ( 1 << PIND2 ); // TOGGLE LED---------------------------------------------------------------
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81 | }
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82 |
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83 | }
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84 |
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85 |
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86 | void RESET(void)
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87 | {
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88 | PORTD &=~ (1<<PIND0); //CS-Sensor Enable
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89 | delay(10);
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90 | Sens_writeSPI(0x0A | 0x2);
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91 | delay(100);
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92 | PORTD |= (1<<PIND0);
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93 | }
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94 |
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95 | void setup()
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96 | {
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97 |
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98 | DDRD |= (1 << PIND1); //OUTPUT FÜR LED1
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99 | DDRD |= (1 << PIND2); //OUTPUT FÜR LED2
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100 |
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101 | DDRD |= (1 << PIND0); //CS-Sensor
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102 |
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103 | DDRB |= (1 << PINB2); // /SS - OUTPUT
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104 | DDRB |= (1 << PINB3); // MOSI - OUTPUT
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105 | DDRB &=~ (1 << PINB4); // MISO - INPUT
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106 | PORTB |= (1 << PINB4);
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107 | DDRB |= (1 << PINB5); // SKC - OUTPUT
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108 |
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109 | // SPI Clock 16MHz/2
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110 | SPCR = (1<<SPE) | (1<<MSTR); //enable SPI, Master, clk=Fcpu/4
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111 | SPSR = (1<<SPI2X); //clk=Fcpu*2
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112 |
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113 | //INIT SENSOR
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114 | PORTD &=~ (1<<PIND0); //CS-Sensor Enable
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115 | delay(10);
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116 | Sens_writeSPI(0x15 & 0x7F); // Erstes Register ab dem gelesen wird. rw-bit = 1
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117 | Sens_writeSPI(0b10000000);
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118 | delay(100);
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119 | PORTD |= (1<<PIND0); //CS-Sensor Disable
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120 |
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121 | }
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