Some help needed connecting NIOS-II with ISP1362 chip

Hello,

I'm pretty new to embedded programming. I want to use the DE2 board as mp3 player, using the USB as input for my mp3 files.

So I need an USB host controller. Since the SLS hc controller requires a license, I need to build my own but I can't seem to make it work.

This is what i've done so far:

In Qsys:

• Use the nios-system qsys file from the DE2 Media Computer (University Program) as a starting point

• From the CD-rom => DE2_NIOS_HOST_MOUSE_VGA => ISP1362, used the class.ptf file to add a new component.

• Connected clock, reset, avalon_slave and exported the conduit

• Used the 'Assign Base Addresses', it assigned address 0x00800000

In Quartus:

• Again using the Media Computer, added the OTG pin assignments

• Used the Media Computer sdc file for TimeQuest Timing Analyzer

• Compiled without errors

• Downloaded the .sof onto the board

In Nios II (Eclipse)

• Made a new project with the 'Hello uCos' template

• The console prints the hellos from the 2 tasks, so that's working fine

Then I used the following code to read the ChipID:

# define USB_BASEADDR 0x00800000
volatile int * hc_data = (int *) USB_BASEADDR;
volatile int * hc_com = (int *) USB_BASEADDR+1;
...
unsigned int ChipID = 1;
*(hc_com) = 0x27;          // hc_com=0x00800004
ChipID = *(hc_data);       // hc_data = 0x00800000
printf("hc_data is : %4X\n", hc_data);
printf("hc_com is : %4X\n", hc_com);
printf("ChipID is : %4X\n", ChipID);

But this returns 0

According to the datasheet it should return 3630h, what am I missing here?

Any help would be appreciated.