Main mTouch application configuration file. More...
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Defines | |
Required, Basic Configuration Options | |
These configuration options must be uniquely set for each application. | |
#define | _XTAL_FREQ |
The Fosc frequency of your system in Hz. | |
#define | TMR0_PRESCALER |
The TMR0 prescaler value of your system. | |
#define | CVD_NUMBER_SENSORS |
Number of CVD Sensor Inputs. | |
#define | CVD_SENSOR0 |
Analog port assignment for Sensor 0. | |
#define | CVD_SAMPLES_PER_SCAN |
Determines the degree of oversampling and the sample rate of your system. | |
#define | CVD_DEBUG_SPEED |
Determines the output transfer speed of the communications module. Valid options: 9600 (preferred) or 115200. | |
#define | CVD_Software_Revision |
Used to determine what communication protocol to use when sending data to the mTouch GUI. Leave set to 0002. | |
Predefined Option Macros to Provide Specific Sampling Rates | |
These macros are calculations that use the clock frequency, TMR0 prescaler, average jitter preload value, and the number of sensors to calculate the number of scans between decoding to ensure a specific timing. They are only used if they are chosen as the CVD_SAMPLES_PER_SCAN value. | |
#define | CVD_100ms_Timing |
Precalculated CVD_SAMPLES_PER_SCAN value to achieve ~100ms sample rate. | |
#define | CVD_20ms_Timing |
Precalculated CVD_SAMPLES_PER_SCAN value to achieve ~20ms sample rate. | |
#define | CVD_17ms_Timing |
Precalculated CVD_SAMPLES_PER_SCAN value to achieve ~17ms sample rate. | |
Adjusting the Framework's Behavior | |
These configuration options will adjust the acquisition and decoding behavior of the mTouch Framework. Editting these values is optional. | |
#define | THRESHOLD_PRESS_SENSOR0 |
Determines the press threshold of sensor 0. | |
#define | CVD_SCALING |
mTouch CVD post-scaler of reading value | |
#define | CVD_DEBUG_OUTPUT_RAW |
When defined, the communications module will output raw data in its information packet. | |
#define | POWER_UP_SAMPLES |
Number of total scans that should be taken across all sensors before they will be considered initialized. | |
#define | BUTTON_TIMEOUT |
Number of press decisions before resetting sensor to released state. | |
#define | AVG_UPDATE |
Determines the weight given to the raw value when updating the average. | |
#define | AVG_RATE |
Sets the update rate of the average when unpressed. | |
#define | RELEASE_THRESHOLD_FACTOR |
Defines the hysteresis relationship between the press and release thresholds. | |
#define | CVD_JITTER_TYPE |
Selects between two acquisition jittering implementations. | |
#define | DEBOUNCE_COUNT_RELEASE |
Number of consecutive scans a sensor must be decoded as released before changing states. | |
#define | DEBOUNCE_COUNT_PRESS |
Number of consecutive scans a sensor must be decoded as pressed before changing states. | |
#define | NEGATIVE_CAPACITANCE |
Determines the method used to handle a negative capacitance shift on the readings. | |
#define | CVD_SETTLING_DELAY |
Determines the amount of time provided for the external sensor and internal hold capacitor to balance their voltages during the CVD scanning process. | |
#define | CVD_CHOLD_CHARGE_DELAY |
Determines the amount of time provided for charging the internal hold capacitor of the ADC during the CVD scanning process. | |
Unimplemented | |
These options are still under development and are not yet implemented. | |
#define | CVD_DEBUG_PIN |
Not currently implemented. | |
#define | CVD_Frame_Revision |
Not currently implemented. | |
#define | CVD_Board_Revision |
Not currently implemented. | |
Advanced Options - Not recommended except for debugging | |
These configuration options will adjust a fundamental section of the framework to perform differently. Care should be taken by anyone using these options as they will have a significant effect on the operation and noise performance of the system. | |
#define | AVG_ENABLE |
Enables/Disables implementation of a baseline average. Turning this off is highly discouraged. | |
#define | CVD_JITTER_ENABLE |
Enables/Disables implementation of the TMR0 jittering feature. Turning this off is highly discouraged due to noise immunity concerns. |
Main mTouch application configuration file.
Definition in file mTouchCVD_Config.h.
#define CVD_100ms_Timing |
Precalculated CVD_SAMPLES_PER_SCAN value to achieve ~100ms sample rate.
Using the generalized formula:
where
Since N does not change, this has been simplified down to:
Definition at line 116 of file mTouchCVD_Config.h.
#define CVD_17ms_Timing |
Precalculated CVD_SAMPLES_PER_SCAN value to achieve ~17ms sample rate.
Using the generalized formula:
where
Since N does not change, this has been simplified down to:
Definition at line 118 of file mTouchCVD_Config.h.
#define CVD_20ms_Timing |
Precalculated CVD_SAMPLES_PER_SCAN value to achieve ~20ms sample rate.
Using the generalized formula:
where
Since N does not change, this has been simplified down to:
Definition at line 117 of file mTouchCVD_Config.h.