#include <stdbool.h>
#include <stdint.h>

Include dependency graph for pit.h:

This graph shows which files directly or indirectly include this file:

Macros
#define	PIT_CHANNEL_BASE 0x40

#define	PIT_CHANNEL0_PORT (PIT_CHANNEL_BASE)

#define	PIT_CHANNEL1_PORT (PIT_CHANNEL_BASE+1)

#define	PIT_CHANNEL2_PORT (PIT_CHANNEL_BASE+2)

#define	PIT_MODE_PORT 0x43

#define	PIT_BINARY 0

#define	PIT_BCD 1

#define	PIT_INTERNAL 0

#define	PIT_LSB 1

#define	PIT_MSB 2

#define	PIT_LSB_MSB 3

#define	PIT_CONTROL_VALUE(FORMAT, MODE, REGISTER, CHANNEL) ((CHANNEL) << 6 \| (REGISTER) << 4 \| (MODE) << 1 \| FORMAT)

#define	PIT_CHANNEL_COUNT 3

#define	PIT_FREQUENCY 1193182

Timer Modes

#define	PIT_MODE_INTERRUPT_ON_TERMINAL 0

#define	PIT_MODE_ONE_SHOT 1

#define	PIT_MODE_RATE_GENERATOR 2

#define	PIT_MODE_SQUARE_WAVE_GENERATOR 3

#define	PIT_MODE_SOFTWARE_STROBE 4

#define	PIT_MODE_HARDWARE_STROBE 5

Functions
void	pitSetValue (uint32_t channel, uint32_t mode, uint16_t value)
	Internal function to set a value of the PIT. More...

void	pitSetFrequency (uint32_t channel, uint32_t frequency)
	Set frequency of the programmable interval timer. More...

Macro Definition Documentation

◆ PIT_BCD

#define PIT_BCD 1

Definition at line 61 of file pit.h.

◆ PIT_BINARY

#define PIT_BINARY 0

Definition at line 60 of file pit.h.

◆ PIT_CHANNEL0_PORT

#define PIT_CHANNEL0_PORT (PIT_CHANNEL_BASE)

Definition at line 55 of file pit.h.

◆ PIT_CHANNEL1_PORT

#define PIT_CHANNEL1_PORT (PIT_CHANNEL_BASE+1)

Definition at line 56 of file pit.h.

◆ PIT_CHANNEL2_PORT

#define PIT_CHANNEL2_PORT (PIT_CHANNEL_BASE+2)

Definition at line 57 of file pit.h.

◆ PIT_CHANNEL_BASE

#define PIT_CHANNEL_BASE 0x40

Definition at line 54 of file pit.h.

◆ PIT_CHANNEL_COUNT

#define PIT_CHANNEL_COUNT 3

Definition at line 71 of file pit.h.

◆ PIT_CONTROL_VALUE

#define PIT_CONTROL_VALUE	(	FORMAT,
		MODE,
		REGISTER,
		CHANNEL
	)	((CHANNEL) << 6 \| (REGISTER) << 4 \| (MODE) << 1 \| FORMAT)

Definition at line 68 of file pit.h.

◆ PIT_FREQUENCY

#define PIT_FREQUENCY 1193182

Definition at line 72 of file pit.h.

◆ PIT_INTERNAL

#define PIT_INTERNAL 0

Definition at line 63 of file pit.h.

◆ PIT_LSB

#define PIT_LSB 1

Definition at line 64 of file pit.h.

◆ PIT_LSB_MSB

#define PIT_LSB_MSB 3

Definition at line 66 of file pit.h.

◆ PIT_MODE_PORT

#define PIT_MODE_PORT 0x43

Definition at line 58 of file pit.h.

◆ PIT_MSB

#define PIT_MSB 2

Definition at line 65 of file pit.h.

Macros

Functions