H7: Add in Dual pads into pin names

Author: KurtE

variants/arduino_portenta_h7/PinNames.cpp

@@ -19,6 +19,8 @@ void pinMode(PinName pinNumber, PinMode mode) {
     return;
   }
 
+  if (pinNumber & DUAL_PAD) return;
+
   if (mode == INPUT) {  // input mode
     gpio_pin_configure(arduino_ports[pinNumber >> 4].port, pinNumber & 0xf,
                        GPIO_INPUT | GPIO_ACTIVE_HIGH);
@@ -35,20 +37,33 @@ void pinMode(PinName pinNumber, PinMode mode) {
 }
 
 void digitalWrite(PinName pinNumber, PinStatus status) {
+  if (pinNumber & DUAL_PAD) return;
   gpio_pin_set(arduino_ports[pinNumber >> 4].port, pinNumber & 0xf, status);
 }
 
 
 PinStatus digitalRead(PinName pinNumber) {
+  if (pinNumber & DUAL_PAD) return LOW;
   return (gpio_pin_get(arduino_ports[pinNumber >> 4].port, pinNumber & 0xf) == 1) ? HIGH : LOW;
 }
 
 int analogRead(PinName pinNumber) {
   // Not sure what to do here, does anyone do something like:
   // analogRead(PA_0c); or analogRead(PC2_ALT0)?
   // first pass only support ones on pins.
+  if (pinNumber & DUAL_PAD) {
+    switch (pinNumber & 0xf) {
+    case 0: Serial.print("<A0>"); return analogRead(A0);
+    case 1: Serial.print("<A1>"); return analogRead(A1);
+    case 2: Serial.print("<A2>"); return analogRead(A2);
+    case 3: Serial.print("<A3>"); return analogRead(A3);
+    default: return -1;
+    }
+
+  }
   int pin_index = PinNameToIndex(pinNumber);
   if (pin_index != -1) {
+    Serial.write('<'); Serial.print(pin_index); Serial.write('>');
     return analogRead(pin_index);
   }
   return -1;
@@ -57,6 +72,7 @@ int analogRead(PinName pinNumber) {
 
 void analogWrite(PinName pinNumber, int value) {
   // first pass only support ones on pins.
+  if (pinNumber & DUAL_PAD) return;
   int pin_index = PinNameToIndex(pinNumber);
   if (pin_index != -1) {
     analogWrite(pin_index, value);
@@ -66,6 +82,7 @@ void analogWrite(PinName pinNumber, int value) {
 
 
 int PinNameToIndex(PinName P) {
+  if (P & DUAL_PAD) return -1;
   for (size_t i = 0; i < ARRAY_SIZE(arduino_pins); i++) {
     if ((arduino_ports[P >> 4].port == arduino_pins[i].port) && ((P & 0xf) == arduino_pins[i].pin)) {
       return i;

variants/arduino_portenta_h7/PinNames.h

@@ -6,6 +6,8 @@
 extern "C" {
 #endif
 
+#define DUAL_PAD 0x800
+
 typedef enum {
     PA_0       = 0x00,
     PA_1       = 0x01,
@@ -176,6 +178,13 @@ typedef enum {
     PK_6       = 0xA6,
     PK_7       = 0xA7,
 
+    // Lets add the Analog only pins, will name them like the schematic, but number like  
+    PA_0C      = 0X00 | DUAL_PAD,
+    PA_1C      = 0X01 | DUAL_PAD,
+    PC_2C      = 0X02 | DUAL_PAD,
+    PC_3C      = 0X03 | DUAL_PAD,
+
+
     WL_REG_ON = PJ_1,
     WL_HOST_WAKE = PJ_5,
     WL_SDIO_0 = PC_8,