Dokumentace souboru /home/mrazik/Documents/web/old/hdo/at91lib/peripherals/pit/pit.h

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Funkce
void	PIT_Init (unsigned int period, unsigned int pit_frequency)
void	PIT_SetPIV (unsigned int piv)
	Set the PIT Periodic Interval Value.
void	PIT_Enable (void)
	Enable the PIT.
void	PIT_EnableIT (void)
	Enable PIT periodic interrupt.
void	PIT_DisableIT (void)
	Disable PIT periodic interrupt.
unsigned int	PIT_GetMode (void)
	Read PIT mode register.
unsigned int	PIT_GetStatus (void)
	Read PIT status register.
unsigned int	PIT_GetPIIR (void)
	Read PIT CPIV and PICNT without ressetting the counters.
unsigned int	PIT_GetPIVR (void)
	Read System timer CPIV and PICNT without ressetting the counters.

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Detailní popis

Purpose

Configuration and handling of PIT.

Usage

1. Initialize System timer for a period in �second with PIT_Init
2. Set the PIT Periodic Interval Value with PIT_SetPIV
3. Enable the PIT with PIT_Enable
4. Enable & disable PIT interrupts using PIT_EnableInt and PIT_DisableInt
5. Read PIT mode register PIT_GetMode
6. Read PIT status register PIT_GetStatus
7. Read PIT CPIV and PICNT without ressetting the counters PIT_GetPIIR
8. Read System timer CPIV and PICNT without ressetting the counters PIT_GetPIVR

Definice v souboru pit.h.

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Dokumentace funkcí

void PIT_Init	(	unsigned int	period,
		unsigned int	pit_frequency
	)

Initialize the System timer for a period in �second with a system clock freq in MHz

Parametry:

period	Period in �second.
pit_frequency	System clock frequency in MHz.

Definice je uvedena na řádku 46 v souboru pit.c.