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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 276 | killagreg | 1 | #include "timer0.h" |
| 2 | #include "button.h" |
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| 3 | |||
| 4 | |||
| 5 | #ifdef USE_FOLLOWME |
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| 6 | #define BUTTON !(PINC & (1<<PINC6)) |
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| 7 | #endif |
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| 8 | #ifdef USE_SDLOGGER |
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| 9 | #define BUTTON !(PINC & (1<<PINC3)) |
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| 10 | #endif |
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| 11 | |||
| 12 | #define CNT_KEY 10 // at least 3 |
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| 13 | #define KEY_DELAY_MS 50 |
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| 14 | |||
| 15 | uint16_t ButtonTimer = 0; |
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| 16 | |||
| 17 | void Button_Init(void) |
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| 18 | { |
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| 19 | |||
| 20 | // set port pin as input pullup |
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| 21 | #ifdef USE_FOLLOWME |
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| 22 | PORTC |= (1 << PORTC6); |
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| 23 | DDRC &= ~(1 << DDC6); |
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| 24 | #endif |
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| 25 | |||
| 26 | #ifdef USE_SDLOGGER |
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| 27 | PORTC |= (1 << PORTC3); |
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| 28 | DDRC &= ~(1 << DDC3); |
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| 29 | #endif |
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| 30 | ButtonTimer = SetDelay(KEY_DELAY_MS); |
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| 31 | } |
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| 32 | |||
| 33 | uint8_t GetButton(void) |
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| 34 | { |
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| 35 | static uint8_t button = 0; |
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| 36 | uint8_t ret = 0; |
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| 37 | |||
| 38 | if(CheckDelay(ButtonTimer)) |
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| 39 | { |
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| 40 | if(BUTTON) |
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| 41 | { |
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| 42 | if(button++ == 0 || button == CNT_KEY) ret = 1; |
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| 43 | if(button == CNT_KEY) button = CNT_KEY - CNT_KEY / 3; |
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| 44 | } |
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| 45 | else button = 0; |
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| 46 | ButtonTimer = SetDelay(KEY_DELAY_MS); |
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| 47 | } |
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| 48 | return(ret); |
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| 49 | } |
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| 50 |