adc_arch.c File Reference

Handling of ADC hardware for lpc21xx. More...

#include "mcu_periph/adc.h"
#include "LPC21xx.h"
#include "armVIC.h"
#include <BOARD_CONFIG>

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Functions
void	adcISR0 (void)
void	adcISR1 (void)
void	adc_buf_channel (uint8_t adc_channel, struct adc_buf *s, uint8_t av_nb_sample)
	Registers a buffer to be used to store the specified converted channel Usage: More...
void	adc_init (void)
	Starts conversions. More...

Variables
static struct adc_buf *	buffers [NB_ADC *2]
	First NB_ADC for bank 0, others for bank 2. More...
volatile uint16_t	adc0_val [NB_ADC] = {1, 2, 3, 4, 5, 6, 7, 8}
volatile uint16_t	adc1_val [NB_ADC] = {9, 10, 11, 12, 13, 14, 15, 16}
static const uint32_t	ADC_PINSEL0_ONES = 0
static const uint32_t	ADC_PINSEL1_ONES = 0
static const uint32_t	ADC_AD0CR_SEL_HW_SCAN = 0
static const uint32_t	ADC_AD1CR_SEL_HW_SCAN = 0

Detailed Description

Handling of ADC hardware for lpc21xx.

Definition in file adc_arch.c.

Function Documentation

void adc_buf_channel	(	uint8_t	adc_channel,
		struct adc_buf *	s,
		uint8_t	av_nb_sample
	)

Registers a buffer to be used to store the specified converted channel Usage:

struct adc_buf channel_buf;
adc_buf_channel(1, &channel_buf, 12);

Registers channel_buf as buffer for ADC channel 1, with max index 12 (12 samples).

Registers a buffer to be used to store the specified converted channel Usage:

Todo:

: fx a more general ADC

Definition at line 59 of file adc_arch.c.

References adc_buf::av_nb_sample.

void adc_init

(

void

)

Starts conversions.

Starts conversions.

Initialize ADC drivers, buffers and start conversion in the background

Starts conversions.

Definition at line 195 of file adc_arch.c.

References _VIC_ADDR, _VIC_CNTL, AD0CR, AD1CR, ADC_AD0CR_SEL_HW_SCAN, ADC_AD1CR_SEL_HW_SCAN, ADC_PINSEL0_ONES, ADC_PINSEL1_ONES, adcISR0(), adcISR1(), PINSEL0, PINSEL1, VIC_AD0, VIC_AD1, VIC_BIT, VIC_ENABLE, VICIntEnable, and VICIntSelect.

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void adcISR0

(

void

)

Definition at line 235 of file adc_arch.c.

References AD0GDR, adc0_val, adc_buf::av_nb_sample, channel, adc_buf::head, ISR_ENTRY, ISR_EXIT, adc_buf::sum, adc_buf::values, and VICVectAddr.

Referenced by adc_init().

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void adcISR1

(

void

)

Definition at line 257 of file adc_arch.c.

References AD1GDR, adc1_val, adc_buf::av_nb_sample, channel, adc_buf::head, ISR_ENTRY, ISR_EXIT, NB_ADC, adc_buf::sum, adc_buf::values, and VICVectAddr.

Referenced by adc_init().

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Variable Documentation

volatile uint16_t adc0_val[NB_ADC] = {1, 2, 3, 4, 5, 6, 7, 8}

Definition at line 53 of file adc_arch.c.

Referenced by adcISR0().

volatile uint16_t adc1_val[NB_ADC] = {9, 10, 11, 12, 13, 14, 15, 16}

Definition at line 54 of file adc_arch.c.

Referenced by adcISR1().

const uint32_t ADC_AD0CR_SEL_HW_SCAN = 0

static

Definition at line 141 of file adc_arch.c.

Referenced by adc_init().

const uint32_t ADC_AD1CR_SEL_HW_SCAN = 0

static

Definition at line 168 of file adc_arch.c.

Referenced by adc_init().

const uint32_t ADC_PINSEL0_ONES = 0

static

Definition at line 87 of file adc_arch.c.

Referenced by adc_init().

const uint32_t ADC_PINSEL1_ONES = 0

static

Definition at line 114 of file adc_arch.c.

Referenced by adc_init().

struct adc_buf* buffers[NB_ADC *2]

static

First NB_ADC for bank 0, others for bank 2.

Definition at line 51 of file adc_arch.c.

Referenced by v4l2_init().