[wiring] Allow creating parameterless Wire instance

libretiny-eu · Dec 12, 2023 · cf3f23e · cf3f23e
1 parent 1ed395b
commit cf3f23e
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/cores/beken-72xx/arduino/libraries/Wire/Wire.cpp b/cores/beken-72xx/arduino/libraries/Wire/Wire.cpp
@@ -113,7 +113,7 @@ bool TwoWire::setClock(uint32_t frequency) {
 	if (!this->data)
 		return false;
 
-	uint32_t maxFrequency = 409600;
+	uint32_t maxFrequency = 400000;
 	if (frequency > maxFrequency) {
 		LT_WM(I2C, "Clock freq too high! %lu < %lu", frequency, maxFrequency);
 		frequency = maxFrequency;

diff --git a/cores/common/arduino/libraries/api/Wire/Wire.h b/cores/common/arduino/libraries/api/Wire/Wire.h
@@ -27,7 +27,7 @@ enum TwoWireResult {
 
 class TwoWire : public Stream {
   private:
-	uint8_t port{0};			 //!< port number, family-specific
+	int port{-1};				 //!< port number, family-specific
 	bool fixedPort{false};		 //!< whether port is not changeable
 	pin_size_t sda{PIN_INVALID}; //!< SDA pin number of this instance
 	pin_size_t scl{PIN_INVALID}; //!< SCL pin number of this instance
@@ -65,6 +65,8 @@ class TwoWire : public Stream {
 
 	TwoWire(pin_size_t sda, pin_size_t scl) : sda(sda), scl(scl) {}
 
+	TwoWire() {}
+
 	~TwoWire();
 
 	bool begin(pin_size_t sda, pin_size_t scl, uint32_t frequency = 0);