ADC configuration structure.
Configuration structure for an ADC instance. This structure should be initialized by the adc_get_config_defaults() function before being modified by the user application.
#include <adc_feature.h>
Data Fields | |
| enum adc_accumulate_samples | accumulate_samples |
Number of ADC samples to accumulate when using the ADC_RESOLUTION_CUSTOM mode. More... | |
| enum adc_clock_prescaler | clock_prescaler |
| Clock prescaler. More... | |
| enum gclk_generator | clock_source |
| GCLK generator used to clock the peripheral. More... | |
| struct adc_correction_config | correction |
| Gain and offset correction configuration structure. More... | |
| bool | differential_mode |
| Enables differential mode if true. More... | |
| enum adc_divide_result | divide_result |
| Division ration when using the ADC_RESOLUTION_CUSTOM mode. More... | |
| enum adc_event_action | event_action |
| Event action to take on incoming event. More... | |
| bool | freerunning |
| Enables free running mode if true. More... | |
| enum adc_gain_factor | gain_factor |
| Gain factor. More... | |
| bool | left_adjust |
| Left adjusted result. More... | |
| enum adc_negative_input | negative_input |
| Negative MUX input. More... | |
| struct adc_pin_scan_config | pin_scan |
| Pin scan configuration structure. More... | |
| enum adc_positive_input | positive_input |
| Positive Multiplexer (MUX) input. More... | |
| enum adc_reference | reference |
| Voltage reference. More... | |
| bool | reference_compensation_enable |
| Enables reference buffer offset compensation if true. More... | |
| enum adc_resolution | resolution |
| Result resolution. More... | |
| bool | run_in_standby |
| Enables ADC in standby sleep mode if true. More... | |
| uint8_t | sample_length |
This value (0-63) control the ADC sampling time in number of half ADC prescaled clock cycles (depends of ADC_PRESCALER value), thus controlling the ADC input impedance. More... | |
| struct adc_window_config | window |
| Window monitor configuration structure. More... | |
| enum adc_accumulate_samples adc_config::accumulate_samples |
Number of ADC samples to accumulate when using the ADC_RESOLUTION_CUSTOM mode.
Note: if the result width increases, result resolution will be changed accordingly.
Referenced by _adc_set_config(), and adc_get_config_defaults().
| enum adc_clock_prescaler adc_config::clock_prescaler |
Clock prescaler.
Referenced by _adc_set_config(), adc_get_config_defaults(), and configure_light_sensor().
| enum gclk_generator adc_config::clock_source |
GCLK generator used to clock the peripheral.
Referenced by _adc_set_config(), adc_get_config_defaults(), and configure_light_sensor().
| struct adc_correction_config adc_config::correction |
Gain and offset correction configuration structure.
Referenced by _adc_set_config(), and adc_get_config_defaults().
| bool adc_config::differential_mode |
Enables differential mode if true.
if false, ADC will run in singled-ended mode.
Referenced by _adc_set_config(), and adc_get_config_defaults().
| enum adc_divide_result adc_config::divide_result |
Division ration when using the ADC_RESOLUTION_CUSTOM mode.
Referenced by _adc_set_config(), and adc_get_config_defaults().
| enum adc_event_action adc_config::event_action |
Event action to take on incoming event.
Referenced by _adc_set_config(), adc_get_config_defaults(), and adc_init().
| bool adc_config::freerunning |
Enables free running mode if true.
Referenced by _adc_set_config(), adc_get_config_defaults(), and adc_init().
| enum adc_gain_factor adc_config::gain_factor |
Gain factor.
Referenced by _adc_set_config(), adc_get_config_defaults(), and configure_light_sensor().
| bool adc_config::left_adjust |
Left adjusted result.
Referenced by _adc_set_config(), and adc_get_config_defaults().
| enum adc_negative_input adc_config::negative_input |
Negative MUX input.
For singled-ended conversion mode, the negative input must be connected to ground. This ground could be the internal GND, IOGND or an external ground connected to a pin.
Referenced by _adc_set_config(), and adc_get_config_defaults().
| struct adc_pin_scan_config adc_config::pin_scan |
Pin scan configuration structure.
Referenced by _adc_set_config(), and adc_get_config_defaults().
| enum adc_positive_input adc_config::positive_input |
Positive Multiplexer (MUX) input.
Referenced by _adc_set_config(), adc_get_config_defaults(), and configure_light_sensor().
| enum adc_reference adc_config::reference |
Voltage reference.
Referenced by _adc_set_config(), adc_get_config_defaults(), adc_init(), and configure_light_sensor().
| bool adc_config::reference_compensation_enable |
Enables reference buffer offset compensation if true.
This will increase the accuracy of the gain stage, but decreases the input impedance; therefore the startup time of the reference must be increased.
Referenced by _adc_set_config(), and adc_get_config_defaults().
| enum adc_resolution adc_config::resolution |
Result resolution.
Referenced by _adc_set_config(), adc_get_config_defaults(), and configure_light_sensor().
| bool adc_config::run_in_standby |
Enables ADC in standby sleep mode if true.
Referenced by _adc_set_config(), and adc_get_config_defaults().
| uint8_t adc_config::sample_length |
This value (0-63) control the ADC sampling time in number of half ADC prescaled clock cycles (depends of ADC_PRESCALER value), thus controlling the ADC input impedance.
Sampling time is set according to the formula: Sample time = (sample_length+1) * (ADCclk / 2).
Referenced by _adc_set_config(), and adc_get_config_defaults().
| struct adc_window_config adc_config::window |
Window monitor configuration structure.
Referenced by _adc_set_config(), and adc_get_config_defaults().
1.8.5