adc.c File Reference

ADC library for the lpc176x bsp. More...

#include <rtems/status-checks.h>
#include <bsp/adc.h>
#include <bsp/adc-defs.h>

Functions
rtems_status_code	adc_open (const lpc176x_pin_number pin_number)
	Opens and initializes the ADC device.
rtems_status_code	adc_close (void)
	Closes the ADC device.
rtems_status_code	adc_read (const lpc176x_pin_number pin_number, float *const result)
	Starts a conversion, waits for it to finish and reads the value.

Detailed Description

ADC library for the lpc176x bsp.

Function Documentation

adc_close()

rtems_status_code adc_close

(

void

)

Closes the ADC device.

Returns

RTEMS_SUCCESSFUL if closed succesfully.

adc_open()

rtems_status_code adc_open

(

const lpc176x_pin_number

pin_number

)

Opens and initializes the ADC device.

Parameters

adc_number

The ADC pin number to be initialized.

Returns

RTEMS_SUCCESSFUL if the initialization was succesful, RTEMS_INVALID_NUMBER if wrong parameter.

adc_read()

rtems_status_code adc_read	(	const lpc176x_pin_number	pin_number,
		float *const	result
	)

Starts a conversion, waits for it to finish and reads the value.

Parameters

pin_number	The port to read the value.
result	The read result. (In a percentage between 0.0f and 1.0f).