adc_at91.c File Reference

ADC hardware-specific implementation. More...

#include "adc_at91.h"
#include <hw/hw_cpufreq.h>
#include "cfg/cfg_adc.h"
#include <cfg/compiler.h>
#include <cpu/irq.h>
#include "cfg/cfg_proc.h"
#include "cfg/cfg_signal.h"
#include <cfg/macros.h>
#include <cfg/log.h>
#include <drv/adc.h>
#include <io/arm.h>

Go to the source code of this file.

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 implementation.

This ADC module should be use both whit kernel or none. If you are using a kernel, the adc drive does not wait the finish of conversion but use a singal every time a required conversion are ended. This signal wake up a process that return a result of conversion. Otherwise, if you not use a kernl, this module wait whit a loop the finishing of conversion.

Author:

Daniele Basile <asterix@develer.com>

Definition in file adc_at91.c.

---

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.

Definition at line 130 of file adc_at91.c.

void adc_hw_select_ch

(

uint8_t

ch

)

Select mux channel ch.

Definition at line 116 of file adc_at91.c.