| 0,0 → 1,50 |
|---|
| #include "timer0.h" |
| #include "button.h" |
| |
| |
| #ifdef USE_FOLLOWME |
| #define BUTTON !(PINC & (1<<PINC6)) |
| #endif |
| #ifdef USE_SDLOGGER |
| #define BUTTON !(PINC & (1<<PINC3)) |
| #endif |
| |
| #define CNT_KEY 10 // at least 3 |
| #define KEY_DELAY_MS 50 |
| |
| uint16_t ButtonTimer = 0; |
| |
| void Button_Init(void) |
| { |
| |
| // set port pin as input pullup |
| #ifdef USE_FOLLOWME |
| PORTC |= (1 << PORTC6); |
| DDRC &= ~(1 << DDC6); |
| #endif |
| |
| #ifdef USE_SDLOGGER |
| PORTC |= (1 << PORTC3); |
| DDRC &= ~(1 << DDC3); |
| #endif |
| ButtonTimer = SetDelay(KEY_DELAY_MS); |
| } |
| |
| uint8_t GetButton(void) |
| { |
| static uint8_t button = 0; |
| uint8_t ret = 0; |
| |
| if(CheckDelay(ButtonTimer)) |
| { |
| if(BUTTON) |
| { |
| if(button++ == 0 || button == CNT_KEY) ret = 1; |
| if(button == CNT_KEY) button = CNT_KEY - CNT_KEY / 3; |
| } |
| else button = 0; |
| ButtonTimer = SetDelay(KEY_DELAY_MS); |
| } |
| return(ret); |
| } |
| |