Fix PalX ADC config

targets/ChibiOS/ORGPAL_PALX/managed_helpers/ORGPAL_PALX.Adc.cs

@@ -6,53 +6,70 @@
 namespace nanoFramework.Targets.ORGPAL_PALX
 {
     /// <summary>
-    /// Enumeration of ADC channels available in ORGPAL_PALX
+    /// Enumeration of ADC channels available for the ORGPAL_PALX.
     /// </summary>
+    /// <remarks>
+    /// Aligned to `target_system_device_adc_config.cpp` and must be kept inline.
+    /// </remarks>
     public static class AdcChannels
     {
-        /// <summary>
-        /// Channel 0, exposed on A0, connected to PA6 (ADC1 - IN6)
-        /// </summary>
-        public const int Channel_0 = 0;
 
         /// <summary>
-        /// Channel 1, exposed on A1, connected to PA4 (ADC1 - IN4)
+        /// Channel 0, Thermistor port input.
         /// </summary>
-        public const int Channel_1 = 1;
+        /// <remarks>
+        /// Connected to PA2 (ADC1 - IN2).
+        /// </remarks>
+        public const int Channel0_ThermistorInput = 0;
 
         /// <summary>
-        /// Channel 2, exposed on A2, connected to PC2 (ADC1 - IN12)
+        /// Channel 1, Battery port input.
         /// </summary>
-        public const int Channel_2 = 2;
+        /// <remarks>
+        /// Connected to PB0 (ADC1 - IN8).
+        /// </remarks>
+        public const int Channel1_BatteryInput = 1;
 
         /// <summary>
-        /// Channel 3, exposed on A3, connected to PF10 (ADC1 - IN8)
+        /// Channel 2, 420mA Current sensor port input.
         /// </summary>
-        public const int Channel_3 = 3;
+        /// <remarks>
+        /// Connected to PC2 (ADC1 - IN12).
+        /// </remarks>
+        public const int Channel2_CurrentSensorInput = 2;
 
         /// <summary>
-        /// Channel 4, exposed on A4, connected to PF8 (ADC3 - IN6)
+        /// Channel 3, Onboard PCB temperature.
         /// </summary>
-        public const int Channel_4 = 4;
+        /// <remarks>
+        /// Connected to PC3 (ADC1 - IN13).
+        /// </remarks>
+        public const int Channel3_PcbTemperatureSensor = 3;
 
-        /// <summary>
-        /// Channel 5, exposed on A5, connected to PB8 (ADC3 - IN7)
-        /// </summary>
-        public const int Channel_5 = 5;
 
         /// <summary>
-        /// Channel 6, internal temperature sensor, connected to ADC1
+        /// Channel 4.
         /// </summary>
-        public const int Channel_TemperatureSensor = 6;
+        /// <remarks>
+        /// Internal MCU temperature sensor, connected to ADC1.
+        /// </remarks>
+        public const int Channel4_McuTemperatureSensor = 4;
 
         /// <summary>
-        /// Channel 7, internal voltage reference, connected to ADC1
+        /// Channel 5.
         /// </summary>
-        public const int Channel_VrefIn = 7;
+        /// <remarks>
+        /// Internal voltage reference, connected to ADC1.
+        /// </remarks>
+        public const int Channel5_InternalVoltageReference = 5;
 
         /// <summary>
-        /// Channel 8, connected to VBatt pin, ADC1
+        /// Channel 6.
         /// </summary>
-        public const int Channel_Vbatt = 8;
+        /// <remarks>
+        /// Internal VBATT pin, connected to ADC1.
+        /// </remarks>
+        public const int Channel6_BatteryVoltage = 6;
+
     }
 }

targets/ChibiOS/ORGPAL_PALX/target_system_device_adc_config.cpp

@@ -8,21 +8,16 @@
 const NF_PAL_ADC_PORT_PIN_CHANNEL AdcPortPinConfig[] = {
 
     // ADC1
-    {1, GPIOA, 3, ADC_CHANNEL_IN3},
-    {1, GPIOA, 4, ADC_CHANNEL_IN4},
-    {1, GPIOB, 0, ADC_CHANNEL_IN8},
-    {1, GPIOB, 1, ADC_CHANNEL_IN9},
-    {1, GPIOC, 2, ADC_CHANNEL_IN12},
-    {1, GPIOC, 3, ADC_CHANNEL_IN13},
+    {1, GPIOA, 2, ADC_CHANNEL_IN2},  // Channel 0, Thermistor port Input
+    {1, GPIOB, 0, ADC_CHANNEL_IN8},  // Channel 1, Battery port input.
+    {1, GPIOC, 2, ADC_CHANNEL_IN12}, // Channel 2, 420MA Current sensor port input.
+    {1, GPIOC, 3, ADC_CHANNEL_IN13}, // Channel 3, Onboard PCB temperature.
 
-    // ADC3
-    {3, GPIOF, 8, ADC_CHANNEL_IN6},
-    {3, GPIOF, 9, ADC_CHANNEL_IN7},
-
-    // these are the internal sources, available only at ADC1
-    {1, NULL, 0, ADC_CHANNEL_SENSOR},
-    {1, NULL, 0, ADC_CHANNEL_VREFINT},
-    {1, NULL, 0, ADC_CHANNEL_VBAT},
+    // These are the internal sources, available only at ADC1
+    // and are added to the end.
+    {1, NULL, 0, ADC_CHANNEL_SENSOR},  // Channel 4, internal MCU temperature.
+    {1, NULL, 0, ADC_CHANNEL_VREFINT}, // Channel 5, internal MCU voltage reference
+    {1, NULL, 0, ADC_CHANNEL_VBAT},    // Channel 6, internal MCU vbat reference.
 };
 
 const int AdcChannelCount = ARRAYSIZE(AdcPortPinConfig);