diff --git a/cores/esp32/esp32-hal-i2c-slave.c b/cores/esp32/esp32-hal-i2c-slave.c index 85eddcdfcf4..edaa15aaab5 100644 --- a/cores/esp32/esp32-hal-i2c-slave.c +++ b/cores/esp32/esp32-hal-i2c-slave.c @@ -335,7 +335,12 @@ esp_err_t i2cSlaveInit(uint8_t num, int sda, int scl, uint16_t slaveID, uint32_t } #endif // !defined(CONFIG_IDF_TARGET_ESP32P4) +#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 3, 3) + i2c_ll_set_mode(i2c->dev, I2C_BUS_MODE_SLAVE); + i2c_ll_enable_pins_open_drain(i2c->dev, true); +#else i2c_ll_slave_init(i2c->dev); +#endif i2c_ll_slave_set_fifo_mode(i2c->dev, true); i2c_ll_set_slave_addr(i2c->dev, slaveID, false); i2c_ll_set_tout(i2c->dev, I2C_LL_MAX_TIMEOUT);