Rev 426 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 426 | killagreg | 1 | #include "timer0.h" |
| 2 | #include "button.h" |
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| 434 | killagreg | 3 | #include "printf_P.h" |
| 426 | killagreg | 4 | |
| 5 | |||
| 6 | #ifdef USE_FOLLOWME |
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| 7 | #define BUTTON !(PINC & (1<<PINC6)) |
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| 8 | #endif |
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| 9 | #ifdef USE_SDLOGGER |
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| 10 | #define BUTTON !(PINC & (1<<PINC3)) |
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| 11 | #endif |
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| 12 | |||
| 13 | #define CNT_KEY 10 // at least 3 |
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| 14 | #define KEY_DELAY_MS 50 |
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| 15 | |||
| 16 | uint16_t ButtonTimer = 0; |
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| 17 | |||
| 18 | void Button_Init(void) |
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| 19 | { |
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| 434 | killagreg | 20 | printf("\r\n BUTTON init..."); |
| 426 | killagreg | 21 | // set port pin as input pullup |
| 22 | #ifdef USE_FOLLOWME |
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| 23 | PORTC |= (1 << PORTC6); |
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| 24 | DDRC &= ~(1 << DDC6); |
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| 25 | #endif |
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| 26 | |||
| 27 | #ifdef USE_SDLOGGER |
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| 28 | PORTC |= (1 << PORTC3); |
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| 29 | DDRC &= ~(1 << DDC3); |
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| 30 | #endif |
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| 31 | ButtonTimer = SetDelay(KEY_DELAY_MS); |
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| 434 | killagreg | 32 | printf("ok"); |
| 426 | killagreg | 33 | } |
| 34 | |||
| 35 | uint8_t GetButton(void) |
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| 36 | { |
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| 37 | static uint8_t button = 0; |
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| 38 | uint8_t ret = 0; |
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| 39 | |||
| 40 | if(CheckDelay(ButtonTimer)) |
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| 41 | { |
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| 42 | if(BUTTON) |
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| 43 | { |
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| 44 | if(button++ == 0 || button == CNT_KEY) ret = 1; |
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| 45 | if(button == CNT_KEY) button = CNT_KEY - CNT_KEY / 3; |
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| 46 | } |
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| 47 | else button = 0; |
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| 48 | ButtonTimer = SetDelay(KEY_DELAY_MS); |
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| 49 | } |
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| 50 | return(ret); |
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| 51 | } |
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| 52 |