23 lines
442 B
C
23 lines
442 B
C
#ifndef HAZEL_PIT_H_
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#define HAZEL_PIT_H_
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#define PIT_CHAN0_DATA 0x40
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#define PIT_CHAN1_DATA 0x41
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#define PIT_CHAN2_DATA 0x42
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#define PIT_MODE_CMD 0x43
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#define PIT_MODE0 0
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#define PIT_MODE2 (2<<1)
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#define PIT_LOBYTE (1<<4)
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#define PIT_LOHIGH (3<<4)
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#define PIT_CHAN0 0
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#define PIT_FREQUENCY 1193182
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#define DESIRED_FREQUENCY 1000
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#define DIVISOR (PIT_FREQUENCY/DESIRED_FREQUENCY)
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void pit_init(void);
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void pit_handler(void);
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#endif
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