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Set I2C clock to 1MHz for Adafruit Feather M0 (And presumably Arduino Zero) #91

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Set I2C clock to 1MHz for Adafruit Feather M0 (And presumably Arduino Zero) #91

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3 changes: 3 additions & 0 deletions Adafruit_SSD1306.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -204,6 +204,9 @@ void Adafruit_SSD1306::begin(uint8_t vccstate, uint8_t i2caddr, bool reset) {
{
// I2C Init
Wire.begin();
#ifdef ARDUINO_SAMD_ZERO
Wire.setClock(1000000u); // Fast mode plus: 1MHz
#endif
#ifdef __SAM3X8E__
// Force 400 KHz I2C, rawr! (Uses pins 20, 21 for SDA, SCL)
TWI1->TWI_CWGR = 0;
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