adc_at91.h File Reference

ADC hardware-specific definition. More...

#include <hw/hw_cpufreq.h>
#include "cfg/cfg_adc.h"
#include <cfg/compiler.h>

Defines
#define	ADC_MUX_MAXCH 8
	ADC config define.
#define	ADC_COMPUTED_PRESCALER (DIV_ROUNDUP(CPU_FREQ, 2 * CONFIG_ADC_CLOCK) - 1)
	Macro for computing correct value to write into ADC register.
#define	ADC_INIT_PINS()
	Init pins macro for adc.
Functions
void	adc_hw_select_ch (uint8_t ch)
	Select mux channel ch.
uint16_t	adc_hw_read (void)
	Start an ADC convertion.
void	adc_hw_init (void)
	Init ADC hardware.

Detailed Description

ADC hardware-specific definition.

Definition in file adc_at91.h.

#define ADC_INIT_PINS ( )

Value:

do { \
    } while (0)

Init pins macro for adc.

Define PIO controller for enable ADC function. Init the ADC pins. Implement it if necessary.

Definition at line 90 of file adc_at91.h.

uint16_t adc_hw_read ( void )

Start an ADC convertion.

If a kernel is present, preempt until convertion is complete, otherwise a busy wait on ADC_DRDY bit is done.

If a kernel is present, preempt until convertion is complete, otherwise a busy wait on ADCS bit is done.

Definition at line 131 of file adc_at91.c.

void adc_hw_select_ch ( uint8_t ch )

Select mux channel ch.

Definition at line 117 of file adc_at91.c.