Проверка в analogWrite(), добавление экземпляров для Wire, SPI, Serial

В функции analogWrite() добавлена проверка, включен ли уже канал - если включен, применяется новое значение только если оно отличается от текущего.
В модулях Wire, SPI, Serial теперь по два экземпляра в соответствии с периферией МК. Для каждой платы задается свой экземпляр, используемый по умолчанию
Co-authored-by: KLASSENTS <klassen@elron.tech>
Co-committed-by: KLASSENTS <klassen@elron.tech>

variants/start/pins_arduino.h

@@ -122,6 +122,7 @@ static inline void additionalPinsDeinit(uint32_t PinNumber){}
 // UART
 // available uarts quantity
 #define SERIAL_PORT_QTY 2
+#define DEFAULT_SERIAL  Serial0
 
 // ADC
 #define MCU_ADC_RESOLUTION    12 // bits
@@ -135,7 +136,7 @@ static inline __attribute__((always_inline)) bool digitalPinHasPWM(uint8_t p)
   return (p < 32) && ((p & 0xF) < 4);
 }
 // return true if digitalPin configured as pwm
-bool digitalPinPwmIsOn(uint8_t digitalPin);
+int8_t digitalPinPwmIsOn(uint8_t digitalPin);
 // determines which timer the pin belongs to
 TIMER32_TypeDef* pwmPinToTimer(uint32_t digPinNumber);
 // determines which timer channel the pin belongs to
@@ -143,6 +144,7 @@ HAL_TIMER32_CHANNEL_IndexTypeDef pwmPinToTimerChannel(uint32_t digPinNumber);
 
 // SPI
 #define SPI_COMMON_QTY  2
+#define DEFAULT_SPI     SPI1
 
 #define PIN_SPI_SS      P1_3
 #define PIN_SPI_MOSI    P1_1
@@ -153,14 +155,14 @@ static const uint8_t MOSI = PIN_SPI_MOSI;
 static const uint8_t MISO = PIN_SPI_MISO;
 static const uint8_t SCK  = PIN_SPI_SCK;
 
-#define PIN_SPI1_SS      P0_3
-#define PIN_SPI1_MOSI    P0_1
-#define PIN_SPI1_MISO    P0_0
-#define PIN_SPI1_SCK     P0_2
-static const uint8_t SS1   = PIN_SPI1_SS;
-static const uint8_t MOSI1 = PIN_SPI1_MOSI;
-static const uint8_t MISO1 = PIN_SPI1_MISO;
-static const uint8_t SCK1  = PIN_SPI1_SCK;
+#define PIN_SPI0_SS      P0_3
+#define PIN_SPI0_MOSI    P0_1
+#define PIN_SPI0_MISO    P0_0
+#define PIN_SPI0_SCK     P0_2
+static const uint8_t SS0   = PIN_SPI0_SS;
+static const uint8_t MOSI0 = PIN_SPI0_MOSI;
+static const uint8_t MISO0 = PIN_SPI0_MISO;
+static const uint8_t SCK0  = PIN_SPI0_SCK;
 
 // check if pwm is used on spi pins
 void spi_onBegin(uint8_t spiNum);
@@ -168,12 +170,13 @@ static inline void spi_onEnd(uint8_t spiNum){}
 
 // I2C
 #define I2C_COMMON_QTY    2
-// Wire (I2C1)
+#define DEFAULT_WIRE      Wire0 // use I2C0 by default
+// Wire1 (I2C1)
 #define PIN_WIRE_SDA      P1_12
 #define PIN_WIRE_SCL      P1_13
 static const uint8_t      SDA = PIN_WIRE_SDA;
 static const uint8_t      SCL = PIN_WIRE_SCL;
-// Wire1 (I2C0)
+// Wire0 (I2C0)
 #define PIN_WIRE_SDA1     P0_9
 #define PIN_WIRE_SCL1     P0_10
 static const uint8_t      SDA1 = PIN_WIRE_SDA1;

variants/start/variant.c

@@ -101,27 +101,25 @@ uint32_t analogInputToChannelNumber(uint32_t PinNumber)
 }
 
 // ---------------------- PWM ---------------------- //
-// use only if digitalPinHasPWM() == true
-#define PWM_PIN_TO_PORT_NUMBER(pin) (((pin) & 16) ? 1 : 0)
-
-// use only if digitalPinHasPWM() == true
-// return true if digitalPin configured as pwm
-__attribute__((noinline, section(".ram_text"))) bool digitalPinPwmIsOn(uint8_t digitalPin)
+// return 1 if digitalPin configured as pwm and enabled, 
+// 0 if pwm on pin is disabled, 
+// -1 if pin doesn't support pwm
+__attribute__((noinline, section(".ram_text"))) int8_t digitalPinPwmIsOn(uint8_t digitalPin)
 {
   if (digitalPinHasPWM(digitalPin))
   {
     uint8_t config = 0;
-    uint8_t pinShift = digitalPin & 3;
-
-    if (PWM_PIN_TO_PORT_NUMBER(digitalPin) == 0)
-      config = PIN_GET_PAD_CONFIG(PORT_0_CFG, pinShift);
+    if ((digitalPin & 16) == 0)
+      config = PIN_GET_PAD_CONFIG(PORT_0_CFG, (digitalPin & 3));
     else
-      config = PIN_GET_PAD_CONFIG(PORT_1_CFG, pinShift);
+      config = PIN_GET_PAD_CONFIG(PORT_1_CFG, (digitalPin & 3));
 
     if (config == 2)
-      return true;
+      return 1; // pwm is on
+    else
+      return 0; // pwm is off
   }
-    return false;
+  return -1;    // pin doesn't support pwm
 }
 
 // function is used only if digitalPinHasPWM() is true