Problem getting Zynq Book exercise 4A "Create IP in HDL" to work

[sam60]

I've been learning to create my own AXI peripheral using the Zynq Book exercise "Create IP in HDL".  Having trouble getting it to work on the Zybo.

I don't get any errors in the hardware or software build process but it doesn't run as expected.  I see the printf output in the SDK console but the LEDs don't function. 
I've tried the exercise twice with exactly the same result.  Then for the third time I used the sources supplied for the Zynq Book tutorials, but again with the same result.
I was very careful to follow the "tool flow".

Has anyone had success with this tutorial?

[sam60]

Well, I got it to work but there appears to be a problem. Not sure what yet but suspect Vivado 15.3

In the application software I noticed the expansion of macro LED_BASE was 0xFFFFFFFF which didn't seem right.
I checked in the hardware and it should be 0x43c00000
Also checked system.hdf which is correct
xparameters.h is wrong :-

/******************************************************************/

/* Definitions for driver LED_CONTROLLER */
#define XPAR_LED_CONTROLLER_NUM_INSTANCES 1

/* Definitions for peripheral LED_CONTROLLER_0 */
#define XPAR_LED_CONTROLLER_0_DEVICE_ID 0
#define XPAR_LED_CONTROLLER_0_S00_AXI_BASEADDR 0xFFFFFFFF
#define XPAR_LED_CONTROLLER_0_S00_AXI_HIGHADDR 0x00000000

Changed this value and the tutorial now works properly.