jacob.eva/arduino-esp32
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set SCL to OUTPUT_OPEN_DRAIN

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fixes: https://github.com/espressif/arduino-esp32/issues/69
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Me No Dev 2016-11-25 11:25:50 +02:00 committed by GitHub
parent d8b2290313
commit be2a26b3ff
1 changed files with 1 additions and 1 deletions
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cores/esp32/esp32-hal-i2c.c
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@ -67,7 +67,7 @@ i2c_err_t i2cAttachSCL(i2c_t * i2c, int8_t scl)
if(i2c == NULL){
return I2C_ERROR_DEV;
}
pinMode(scl, OUTPUT);
pinMode(scl, OUTPUT_OPEN_DRAIN);
pinMatrixOutAttach(scl, I2C_SCL_IDX(i2c->num), false, false);
pinMatrixInAttach(scl, I2C_SCL_IDX(i2c->num), false);
return I2C_ERROR_OK;