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Defines | Functions
adc_sam3.h File Reference

ADC hardware-specific definition. More...

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

Go to the source code of this file.

Defines

#define ADC_MUX_MAXCH   16
 ADC config define.
#define ADC_PRESCALER   (DIV_ROUNDUP(CPU_FREQ, 2 * CONFIG_ADC_CLOCK) - 1)
 Macro for computing correct value to write into ADC register.

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.

Author:
Daniele Basile <asterix@develer.com>

Definition in file adc_sam3.h.


Function Documentation

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.

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 130 of file adc_at91.c.

void adc_hw_select_ch ( uint8_t  ch)

Select mux channel ch.

Generally the stm32 cpu family allow us to program the order of adc channel that we want to read. In this driver implementation we put as fist channel to read the select ones.

Generally the stm32 cpu family allow us to program the order of adc channel that we want to read. In this driver implementation we put as fist channel to read the select ones.

Definition at line 116 of file adc_at91.c.