1 | #include <avr/io.h>
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2 | #include <util/delay.h>
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3 | #include <avr/interrupt.h>
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4 | //#include <lcd-routines.h>
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5 | #include "uart.h"
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6 |
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7 |
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8 | #define UART_BAUD_RATE 19200
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9 |
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10 | // Defines der einzelnen Ports
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11 | // Buttons defines
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12 | #define BTN_PORT PORTB
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13 | #define BTN_DDR DDRB
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14 | #define BTN_SECOND_UP PB5
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15 | #define BTN_SECOND_DOWN PB4
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16 | #define BTN_MINUTE_UP PB3
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17 | #define BTN_MINUTE_DOWN PB2
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18 | #define BTN_START PB1
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19 | #define BTN_STOP PB0
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20 | // Summer und Relais
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21 | #define OUT_POPRT PORTD
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22 | #define OUT_DDR DDRD
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23 | #define OUT_SUMMER1 PD5
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24 | #define OUT_SUMMER2 PD6
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25 | #define OUT_RELAIS PD7
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26 | #define TEST_BLINC PD6
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27 | #define TEST_POWER PD5
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28 | #define TEST_SWITCH_LED PD4
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29 | #define TEST_BTN PD3
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30 | #define TEST_BTN2 PD2
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31 | #define TEST_LED2 PD1
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32 |
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33 | #define debounce( port, pin ) \
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34 | ({ \
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35 | static uint8_t flag = 0; /* new variable on every macro usage */ \
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36 | uint8_t i = 0; \
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37 | \
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38 | if( flag ){ /* check for key release: */ \
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39 | for(;;){ /* loop ... */ \
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40 | if( !(port & 1<<pin) ){ /* ... until key pressed or ... */ \
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41 | i = 0; /* 0 = bounce */ \
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42 | break; \
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43 | } \
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44 | _delay_us( 98 ); /* * 256 = 25ms */ \
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45 | if( --i == 0 ){ /* ... until key >25ms released */ \
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46 | flag = 0; /* clear press flag */ \
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47 | i = 0; /* 0 = key release debounced */ \
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48 | break; \
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49 | } \
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50 | } \
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51 | }else{ /* else check for key press: */ \
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52 | for(;;){ /* loop ... */ \
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53 | if( (port & 1<<pin) ){ /* ... until key released or ... */ \
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54 | i = 0; /* 0 = bounce */ \
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55 | break; \
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56 | } \
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57 | _delay_us( 98 ); /* * 256 = 25ms */ \
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58 | if( --i == 0 ){ /* ... until key >25ms pressed */ \
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59 | flag = 1; /* set press flag */ \
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60 | i = 1; /* 1 = key press debounced */ \
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61 | break; \
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62 | } \
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63 | } \
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64 | } \
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65 | i; /* return value of Macro */ \
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66 | })
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67 |
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68 | ISR(TIMER0_OVF_vect)
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69 | {
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70 | TCNT0 = 00;
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71 | OUT_POPRT ^= (1 << TEST_BLINC);
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72 | }
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73 |
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74 | ISR(TIMER1_COMPA_vect)
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75 | {
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76 | //Auflösung 1 Sekunde
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77 | TCNT1 = 0;
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78 | OUT_POPRT ^= (1 << OUT_RELAIS);
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79 | }
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80 |
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81 | void init(void)
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82 | {
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83 | TIMSK |= (1<<TOIE0);
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84 | TCCR0 |= (1<<CS02) | (1<<CS00);
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85 | TCNT0 = 00;
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86 |
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87 | //TCCR1B = (1 << WGM12) | (1 << CS12);
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88 | //OCR1A = 62500;
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89 |
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90 | //TIMSK = (1 << OCIE1A) | (1 << TOIE0);
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91 | TIMSK = (1 << TOIE0);
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92 |
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93 | uart_init( UART_BAUD_SELECT(UART_BAUD_RATE,F_CPU) );
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94 | uart_puts("Starting\r\n");
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95 | }
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96 |
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97 | int main(void)
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98 | {
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99 | init();
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100 | sei();
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101 |
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102 | OUT_DDR |= ((1 << OUT_RELAIS) | (1 << TEST_BLINC) | (1 << TEST_POWER) | (1 << TEST_SWITCH_LED) | (1 << TEST_LED2));
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103 | OUT_DDR |= ((1 << OUT_RELAIS) | (1 << TEST_BLINC) | (1 << TEST_POWER) | (1 << TEST_SWITCH_LED));
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104 | //OUT_DDR &= ~((1 << TEST_BTN) | (1 << TEST_BTN2));
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105 | //PORTD |= ((1 << TEST_BTN) | (1 << TEST_BTN2));
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106 |
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107 | BTN_DDR &= ~((1 << BTN_START) | (1 << BTN_STOP) | (1 << BTN_SECOND_UP) | (1 << BTN_SECOND_DOWN) | (1 << BTN_MINUTE_UP) | (1 << BTN_MINUTE_DOWN));
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108 | BTN_PORT |= ((1 << BTN_START) | (1 << BTN_STOP) | (1 << BTN_SECOND_UP) | (1 << BTN_SECOND_DOWN) | (1 << BTN_MINUTE_UP) | (1 << BTN_MINUTE_DOWN));
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109 |
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110 | PORTD |= ((1 << TEST_POWER));
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111 |
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112 | while(1)
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113 | {
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114 | if (debounce(PINB, BTN_MINUTE_DOWN))
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115 | {
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116 | uart_puts("MIN_DOWN\r\n");
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117 | }
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118 |
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119 | if (debounce(PINB, BTN_MINUTE_UP))
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120 | {
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121 | uart_puts("MIN_UP\r\n");
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122 | }
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123 |
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124 | if (debounce(PINB, BTN_SECOND_DOWN))
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125 | {
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126 | uart_puts("SECOND_DOWN\r\n");
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127 | }
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128 |
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129 | if (debounce(PINB, BTN_SECOND_UP))
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130 | {
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131 | uart_puts("SECOND_UP\r\n");
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132 | }
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133 |
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134 | if (debounce(PINB, BTN_START))
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135 | {
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136 | uart_puts("START\r\n");
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137 | }
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138 |
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139 | if (debounce(PINB, BTN_STOP))
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140 | {
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141 | uart_puts("STOP\r\n");
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142 | }
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143 |
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144 | }
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145 | }
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