adc_pm_irq.c File Reference

#include "adc_pm.h"
#include <LPC17xx.h>
#include <stdlib.h>

Go to the source code of this file.

Functions
void	ADC_PMSetSampleReadyAction (ADC_PMInterruptHandler action)
	Sets the action to be executed when the conversion is done.
void	ADC_PMUnsetSampleReadyAction (void)
void	ADC_IRQHandler (void)

Variables
_PRIVATE ADC_PMInterruptHandler	done_action = NULL
	Holds the handler that is executed when the conversion is done.
_PRIVATE u16	prv_value = 0x0
	Used to store the previous value of the conversion.

Function Documentation

ADC_IRQHandler()

void ADC_IRQHandler ( void  )

extern

Definition at line 25 of file adc_pm_irq.c.

{
    // The interrupt reads info from the ADGDR register.
    const u16 new_value = (LPC_ADC->ADGDR >> 4) & 0xFFF;
 
    if (done_action)
        done_action(prv_value, new_value);
 
    if (new_value != prv_value)
        prv_value = new_value;
}

ADC_PMSetSampleReadyAction()

void ADC_PMSetSampleReadyAction

(

ADC_PMInterruptHandler

action

)

Sets the action to be executed when the conversion is done.

Todo:

This function is not implemented void ADC_PMDisableSampling();

Parameters

action

The action to be executed when the conversion is done.

Definition at line 13 of file adc_pm_irq.c.

{
    done_action = action;
}

ADC_PMUnsetSampleReadyAction()

void ADC_PMUnsetSampleReadyAction

(

void

)

Definition at line 18 of file adc_pm_irq.c.

{
    done_action = NULL;
}

Variable Documentation

done_action

_PRIVATE ADC_PMInterruptHandler done_action = NULL

Holds the handler that is executed when the conversion is done.

Definition at line 6 of file adc_pm_irq.c.

prv_value

_PRIVATE u16 prv_value = 0x0

Used to store the previous value of the conversion.

Definition at line 9 of file adc_pm_irq.c.