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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | ingob | 1 | /***************************************************************************** |
| 2 | |||
| 3 | *****************************************************************************/ |
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| 4 | #include "main.h" |
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| 5 | volatile unsigned int CountMilliseconds = 0; |
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| 6 | volatile unsigned char Timer0Overflow; |
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| 7 | |||
| 8 | enum { |
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| 9 | STOP = 0, |
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| 10 | CK = 1, |
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| 11 | CK8 = 2, |
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| 12 | CK64 = 3, |
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| 13 | CK256 = 4, |
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| 14 | CK1024 = 5, |
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| 15 | T0_FALLING_EDGE = 6, |
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| 16 | T0_RISING_EDGE = 7 |
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| 17 | }; |
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| 18 | |||
| 19 | |||
| 20 | SIGNAL(SIG_OVERFLOW0) |
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| 21 | { |
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| 22 | static unsigned char cnt; |
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| 23 | Timer0Overflow++; |
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| 24 | if(!cnt--) |
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| 25 | { |
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| 26 | cnt = 3; |
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| 27 | CountMilliseconds += 1; |
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| 28 | if(I2C_Timeout) I2C_Timeout--; |
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| 29 | if(PPM_Timeout) PPM_Timeout--; |
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| 30 | if(SIO_Timeout) SIO_Timeout--; |
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| 31 | } |
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| 32 | } |
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| 33 | |||
| 34 | |||
| 35 | void Timer0_Init(void) |
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| 36 | { |
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| 37 | TCCR0 = TIMER_TEILER; |
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| 38 | // TCNT0 = -TIMER_RELOAD_VALUE; // reload |
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| 39 | TIM0_START; |
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| 40 | TIMER2_INT_ENABLE; |
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| 41 | } |
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| 42 | |||
| 43 | |||
| 44 | unsigned int SetDelay(unsigned int t) |
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| 45 | { |
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| 46 | return(CountMilliseconds + t - 1); |
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| 47 | } |
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| 48 | |||
| 49 | char CheckDelay (unsigned int t) |
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| 50 | { |
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| 51 | return(((t - CountMilliseconds) & 0x8000) >> 8); |
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| 52 | } |
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| 53 | |||
| 54 | void Delay_ms(unsigned int w) |
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| 55 | { |
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| 56 | unsigned int akt; |
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| 57 | akt = SetDelay(w); |
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| 58 | while (!CheckDelay(akt)); |
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| 59 | } |