diff --git a/Anaren_uart_example/uart_example.c b/Anaren_uart_example/uart_example.c
index bdf77a5..66ce08b 100644
--- a/Anaren_uart_example/uart_example.c
+++ b/Anaren_uart_example/uart_example.c
@@ -337,9 +337,12 @@ void app(void)
 	gpio_configurePin(PIN2PORT(GREEN_LED), PIN2PIN(GREEN_LED), GPIO_OUTPUT_ENABLE, GPIO_PIN_OUTPUT_LOW);
 	gpio_configurePin(PIN2PORT(BLUE_LED), PIN2PIN(BLUE_LED), GPIO_OUTPUT_ENABLE, GPIO_PIN_OUTPUT_LOW);
 	gpio_configurePin(PIN2PORT(IOEXPAND_INT), PIN2PIN(IOEXPAND_INT), GPIO_INPUT_ENABLE | GPIO_PULL_UP | GPIO_EN_INT_FALLING_EDGE, GPIO_PIN_INPUT_HIGH);
-	gpio_registerForInterrupt(NULL, ioexpand_int_handler, NULL);
+	//gpio_registerForInterrupt(NULL, ioexpand_int_handler, NULL);
 	//Buzzer config
 	aclk_configure(512000, ACLK1, ACLK_FREQ_24_MHZ);
+	//I2C Bus init
+	i2cm_init();
+	i2cm_setSpeed(I2CM_SPEED_400KHZ);
 
 	puart_print("App init done\r\n");
 }