Mercurial > ~darius > hgwebdir.cgi > avr
comparison testavr.c @ 54:58f1ec46bff6
Add a beeper when the data is stale (only when USB is disabled as they share
a pin)
Move the time of day timer to OCR2 so we can use PB3/OC0 for PWM.
| author | darius@Inchoate |
|---|---|
| date | Wed, 29 Oct 2008 17:41:04 +1030 |
| parents | 98b5a43fc748 |
| children | 09f8d879afb9 |
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| 53:98b5a43fc748 | 54:58f1ec46bff6 |
|---|---|
| 82 DDRB = 0x0d; | 82 DDRB = 0x0d; |
| 83 PORTB = 0x00; | 83 PORTB = 0x00; |
| 84 #else | 84 #else |
| 85 DDRA = 0xff; | 85 DDRA = 0xff; |
| 86 PORTA = 0x00; | 86 PORTA = 0x00; |
| 87 | |
| 88 DDRB = 0x00; | |
| 89 PORTB = 0x00; | |
| 90 | |
| 87 #endif | 91 #endif |
| 88 /* GPIO (0:7) */ | 92 /* GPIO (0:7) */ |
| 89 DDRC = 0xff; | 93 DDRC = 0xff; |
| 90 PORTC = 0x00; | 94 PORTC = 0x00; |
| 91 | 95 |
| 92 /* USART (0:1), IDBus (2:5), 485 (6:6), GPIO (7:7) */ | 96 /* USART (0:1), IDBus (2:5), 485 (6:6), GPIO (7:7) */ |
| 93 DDRD = 0xf7; | 97 DDRD = 0xf7; |
| 94 PORTD = 0xf7; | 98 PORTD = 0xf7; |
| 99 | |
| 100 #ifndef WITHUSB | |
| 101 /* Beep | |
| 102 * | |
| 103 * Fpwm = Fclk / (N * 510) | |
| 104 * = 16e6 / (8 * 510) | |
| 105 * = 3921Hz | |
| 106 * | |
| 107 * Behind ifndef because PB3 is A0 on PDI chip | |
| 108 * | |
| 109 * Phase correct PWM, non-inverted output, divide by 8 */ | |
| 110 TCCR0 = _BV(WGM00) | _BV(WGM11) | _BV(COM00) | _BV(COM01) | _BV(CS01); | |
| 111 OCR0 = 253; | |
| 112 #endif | |
| 95 | 113 |
| 96 /* Set up the one wire stuff */ | 114 /* Set up the one wire stuff */ |
| 97 OWInit(); | 115 OWInit(); |
| 98 | 116 |
| 99 /* Init UART */ | 117 /* Init UART */ |