daisy::AdcChannelConfig¶

Module: LIBDAISY / PERIPHERAL / ANALOG

Configuration Structure for an ADC Channel. More...

#include <adc.h>

Public Types¶

	Name
enum	MuxPin
enum	ConversionSpeed { SPEED_1CYCLES_5, SPEED_2CYCLES_5, SPEED_8CYCLES_5, SPEED_16CYCLES_5, SPEED_32CYCLES_5, SPEED_64CYCLES_5, SPEED_387CYCLES_5, SPEED_810CYCLES_5} per channel conversion speed added to fixed time based on bitdepth, etc.

Public Functions¶

	Name
void	InitSingle(dsy_gpio_pin pin, ConversionSpeed speed =SPEED_8CYCLES_5)
void	InitMux(dsy_gpio_pin adc_pin, size_t mux_channels, dsy_gpio_pin mux_0, dsy_gpio_pin mux_1 ={DSY_GPIOX, 0}, dsy_gpio_pin mux_2 ={DSY_GPIOX, 0}, ConversionSpeed speed =SPEED_8CYCLES_5)

Public Attributes¶

	Name
dsy_gpio	pin_
dsy_gpio[MUX_SEL_LAST]	mux_pin_
uint8_t	mux_channels_
ConversionSpeed	speed_

Detailed Description¶

struct daisy::AdcChannelConfig;

Configuration Structure for an ADC Channel.

Note: Sharing data lines to multiple muxes is possible, but each channel sharing data lines must be set to the maximum number of channels, even if some multiplexers have fewer inputs connected.

This can be used to configure a a single input, or a multiplexed input, allowing up to 8 inputs on one channel.

Public Types Documentation¶

enum MuxPin¶

Enumerator	Value	Description
MUX_SEL_0		&
MUX_SEL_1		&
MUX_SEL_2		&
MUX_SEL_LAST		&

Which pin to use for multiplexing

enum ConversionSpeed¶

Enumerator	Value	Description
SPEED_1CYCLES_5
SPEED_2CYCLES_5
SPEED_8CYCLES_5
SPEED_16CYCLES_5
SPEED_32CYCLES_5
SPEED_64CYCLES_5
SPEED_387CYCLES_5
SPEED_810CYCLES_5

per channel conversion speed added to fixed time based on bitdepth, etc.

Public Functions Documentation¶

function InitSingle¶

void InitSingle(
    dsy_gpio_pin pin,
    ConversionSpeed speed =SPEED_8CYCLES_5
)

Parameters:

pin Pin to init.
speed conversion speed for this pin defaults to 8.5 cycles

Initializes a single ADC pin as an ADC.

function InitMux¶

void InitMux(
    dsy_gpio_pin adc_pin,
    size_t mux_channels,
    dsy_gpio_pin mux_0,
    dsy_gpio_pin mux_1 ={DSY_GPIOX, 0},
    dsy_gpio_pin mux_2 ={DSY_GPIOX, 0},
    ConversionSpeed speed =SPEED_8CYCLES_5
)

Parameters:

adc_pin &
mux_channels must be 1-8
mux_0 First mux pin
mux_1 Second mux pin
mux_2 Third mux pin
speed conversion speed for this pin defaults to 8.5 cycles

Initializes a single ADC pin as a Multiplexed ADC. Requires a CD405X Multiplexer connected to the pin. You only need to supply the mux pins that are required, e.g. a 4052 mux would only require mux_0 and mux_1. Internal Callbacks handle the pin addressing.

Public Attributes Documentation¶

variable pin_¶

dsy_gpio pin_;

&

variable mux_pin_¶

dsy_gpio[MUX_SEL_LAST] mux_pin_;

&

variable mux_channels_¶

uint8_t mux_channels_;

&

variable speed_¶

ConversionSpeed speed_;

Updated on 2024-01-03 at 19:41:01 +0000