Moving dcPin init to SPI and parallel setup functions

Author: nseidle

src/SFE_MicroOLED.cpp

@@ -209,8 +209,6 @@ void MicroOLED::begin()
 
 	// Set up the selected interface:
 	if (interface == MODE_SPI)
-	{
-		pinMode(dcPin, OUTPUT);
 		spiSetup();
 	}
 	else if (interface == MODE_I2C)

src/hardware.cpp

@@ -50,6 +50,7 @@ SPISettings oledSettings(10000000, MSBFIRST, SPI_MODE0);
 void MicroOLED::spiSetup()
 {
 	// Initialize the pins:
+	pinMode(dcPin, OUTPUT); //dc Is used for SPI and parallel interfaces but not I2C
 	pinMode(MOSI, OUTPUT);	// MOSI is an OUTPUT
 	pinMode(SCK, OUTPUT);	// SCK is an OUTPUT
 	pinMode(csPin, OUTPUT);	// CS is an OUTPUT
@@ -107,6 +108,8 @@ void MicroOLED::i2cWrite(byte address, byte dc, byte data)
 **/
 void MicroOLED::parallelSetup()
 {
+	pinMode(dcPin, OUTPUT); //dc Is used for SPI and parallel interfaces but not I2C
+
 	// Initialize WR, RD, CS and data pins as outputs.
 	pinMode(wrPin, OUTPUT);
 	digitalWrite(wrPin, HIGH);