Sensor-Watch/patch/watch__adc_8h_source.html

 /*

-  * MIT License

-  *

-  * Copyright (c) 2020 Joey Castillo

-  *

-  * Permission is hereby granted, free of charge, to any person obtaining a copy

-  * of this software and associated documentation files (the "Software"), to deal

-  * in the Software without restriction, including without limitation the rights

-  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

-  * copies of the Software, and to permit persons to whom the Software is

-  * furnished to do so, subject to the following conditions:

-  *

-  * The above copyright notice and this permission notice shall be included in all

-  * copies or substantial portions of the Software.

-  *

-  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

-  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

-  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

-  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

-  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

-  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

-  * SOFTWARE.

-  */

- #ifndef _WATCH_ADC_H_INCLUDED

- #define _WATCH_ADC_H_INCLUDED

-

- #include "watch.h"

-

-

- void watch_enable_adc(void);

-

- void watch_enable_analog_input(const uint8_t pin);

-

- uint16_t watch_get_analog_pin_level(const uint8_t pin);

-

- void watch_set_analog_num_samples(uint16_t samples);

-

- void watch_set_analog_sampling_length(uint8_t cycles);

-

- typedef enum {

-     ADC_REFERENCE_INTREF = ADC_REFCTRL_REFSEL_INTREF_Val,

-     ADC_REFERENCE_VCC_DIV1POINT6 = ADC_REFCTRL_REFSEL_INTVCC0_Val,

-     ADC_REFERENCE_VCC_DIV2 = ADC_REFCTRL_REFSEL_INTVCC1_Val,

-     ADC_REFERENCE_VCC = ADC_REFCTRL_REFSEL_INTVCC2_Val,

- } watch_adc_reference_voltage;

-

-

- void watch_set_analog_reference_voltage(watch_adc_reference_voltage reference);

-

- uint16_t watch_get_vcc_voltage(void);

-

- void watch_disable_analog_input(const uint8_t pin);

-

- void watch_disable_adc(void);

-

- #endif

-watch_get_analog_pin_level
uint16_t watch_get_analog_pin_level(const uint8_t pin)
Reads an analog value from one of the pins.
Definition: watch_adc.c:104

-watch_enable_analog_input
void watch_enable_analog_input(const uint8_t pin)
Configures the selected pin for analog input.
Definition: watch_adc.c:81

-watch_get_vcc_voltage
uint16_t watch_get_vcc_voltage(void)
Returns the voltage of the VCC supply in millivolts (i.e. 3000 mV == 3.0 V). If running on a coin cel...
Definition: watch_adc.c:154

-watch_enable_adc
void watch_enable_adc(void)
Enables the ADC peripheral. You must call this before attempting to read a value from an analog pin.
Definition: watch_adc.c:43

-watch_set_analog_num_samples
void watch_set_analog_num_samples(uint16_t samples)
Sets the number of samples to accumulate when measuring a pin level. Default is 16.
Definition: watch_adc.c:121

-watch_set_analog_reference_voltage
void watch_set_analog_reference_voltage(watch_adc_reference_voltage reference)
Selects the reference voltage to use for analog readings. Default is ADC_REFERENCE_VCC.
Definition: watch_adc.c:141

-watch_disable_analog_input
void watch_disable_analog_input(const uint8_t pin)
Disables the analog circuitry on the selected pin.
Definition: watch_adc.c:170

-watch_set_analog_sampling_length
void watch_set_analog_sampling_length(uint8_t cycles)
Sets the length of time spent sampling, which allows measurement of higher impedance inputs....
Definition: watch_adc.c:133

-watch_disable_adc
void watch_disable_adc(void)
Disables the ADC peripheral.
Definition: watch_adc.c:174

-watch.h

-