Allow changing the PAD via API (#19)

Author: Rocketct

src/Arduino_MCHPTouch.cpp

@@ -98,6 +98,18 @@ void QtouchClass::setSensorsSensitivity(unsigned int newSens)
   setSensitivity(newSens);
 }
 
+/*******************************************************************************
+ * Function Name  : setTouchPad
+ * Description    : Sets the touch's pad zero in accord with the carrier
+ *                  version
+ * Input          : pad - desired pad
+ * Return         : NONE
+ *******************************************************************************/
+void QtouchClass::setTouchPad(int pad)
+{
+  setTouchZero(pad);
+}
+
 /*******************************************************************************
  * Function Name  : setSensorsSensitivity
  * Description    : Sets a sensor sensitivity value

src/Arduino_MCHPTouch.h

@@ -23,6 +23,7 @@ class QtouchClass
   int available();
   int read(int sensor_id);
   void setSensorsSensitivity(unsigned int newSens);
+  void setTouchPad(int pad = 0);
   void setSensorsSensitivity(unsigned int newSens ,unsigned int btn_channel);
   void setSensorsHysteresis(hysteresis_t newHyst);
   unsigned int getSensorsSensitivity();

src/touch.c

@@ -96,7 +96,7 @@ unsigned int _sensitivity = 50u;
 unsigned int _sensitivity_ch[5] = {50u , 50u, 50u, 50u, 50u};
 
 hysteresis_t _hysteresis = HYST_6_25;
-
+int _pad = 0;
 uint8_t module_error_code = 0;
 /*----------------------------------------------------------------------------
 *                               static variables
@@ -258,6 +258,8 @@ touch_ret_t touch_sensors_init(void)
 
 	touch_time.measurement_period_ms = DEF_TOUCH_MEASUREMENT_PERIOD_MS;
 
+	touch_config.p_selfcap_config->p_selfcap_y_nodes[0] = Y(_pad);
+
 	/* Initialize touch library for Self Cap operation. */
 	touch_ret = touch_selfcap_sensors_init(&touch_config);
 	if (touch_ret != TOUCH_SUCCESS) {
@@ -417,6 +419,10 @@ void setSensitivity(unsigned int newSens){
 	}
 }
 
+void setTouchZero(int pad){
+	_pad = pad;
+}
+
 void setSensitivityChannel(unsigned int newSens, unsigned int btn_channel){
 	_sensitivity_ch[btn_channel] = newSens;
 }

src/touch_api_SAMD.h

@@ -994,7 +994,7 @@ void setSensitivity(unsigned int newSens);
 void setSensitivityChannel(unsigned int newSens, unsigned int btn_channel);
 hysteresis_t getHysteresis();
 unsigned int getSensitivity();
-
+void setTouchZero(int pad);
 
 /* Acquisition module SAMD21 Sequential */
 

src/touch_config_samd.h

@@ -358,7 +358,7 @@
 /***************** Communication - Data Streamer ******************/
 /**********************************************************/
 
-#define DEF_TOUCH_DATA_STREAMER_ENABLE 1u
+#define DEF_TOUCH_DATA_STREAMER_ENABLE 0u
 #define DATA_STREAMER_BOARD_TYPE USER_BOARD
 
 #endif /* TOUCH_CONFIG_SAMD_H */