Update AdvancedADC.h

Added start(), new parameters to begin(), setADCDualMode, and enableDualMode() routines.  Also added dualMode and selectedADC members to AdvancedADC class.

Author: jmdodd95682

src/AdvancedADC.h

@@ -31,6 +31,8 @@ class AdvancedADC {
         size_t n_channels;
         adc_descr_t *descr;
         PinName adc_pins[AN_MAX_ADC_CHANNELS];
+        bool dualMode;
+        uint8_t selectedADC;
 
     public:
         template <typename ... T>
@@ -46,15 +48,23 @@ class AdvancedADC {
         ~AdvancedADC();
         bool available();
         SampleBuffer read();
-        int begin(uint32_t resolution, uint32_t sample_rate, size_t n_samples, size_t n_buffers);
-        int begin(uint32_t resolution, uint32_t sample_rate, size_t n_samples, size_t n_buffers, size_t n_pins, pin_size_t *pins) {
+        int begin(uint32_t resolution, uint32_t sample_rate, size_t n_samples, size_t n_buffers, bool do_start=true,uint8_t adcNum=0);
+        int begin(uint32_t resolution, uint32_t sample_rate, size_t n_samples, size_t n_buffers, size_t n_pins, pin_size_t *pins, bool start=true,uint8_t fixed_adc=0) {
             if (n_pins > AN_MAX_ADC_CHANNELS) n_pins = AN_MAX_ADC_CHANNELS;
             for (size_t i = 0; i < n_pins; ++i) {
                 adc_pins[i] = analogPinToPinName(pins[i]);
             }
+
             n_channels = n_pins;
-            return begin(resolution, sample_rate, n_samples, n_buffers);
+            return begin(resolution, sample_rate, n_samples, n_buffers,start,fixed_adc);
         }
+        
+        void clear();
+
+        int start(uint32_t sample_rate);
+        
+        void setADCDualMode(bool dm);
+        int enableDualMode();
         int stop();
 };