+portBASE_TYPE xStatus;\r
+const unsigned char ucSetToOutput = 0U;\r
+\r
+ /* Initialize the GPIO. */\r
+ xStatus = XGpio_Initialize( &xOutputGPIOInstance, XPAR_LEDS_4BITS_DEVICE_ID );\r
+ if( xStatus == XST_SUCCESS )\r
+ {\r
+ /* All LEDs on this channel are going to be outputs. */\r
+ XGpio_SetDataDirection( &xOutputGPIOInstance, uxGPIOOutputChannel, ucSetToOutput );\r
+\r
+ /* Start with all LEDs off. */\r
+ ucGPIOState = 0U;\r
+ XGpio_DiscreteWrite( &xOutputGPIOInstance, uxGPIOOutputChannel, ucGPIOState );\r
+ }\r
+\r
+ configASSERT( ( xStatus == XST_SUCCESS ) );\r
+\r