Olimex ARM-USB-TINY H in crossworks

I am using CrossWorks for developing my LPC2468 Project with Olimex ARM-USB-TINY H Target.

Installation of its driver had done properly.

Now I am testing my board by debugging a sample LPC2468 OEM PROJECT.I had build the project.

No error during build.

After that I performed the following step.

target->connect->Olimex arm-usb-tiny

Target connected successfully.

So I debug the project…But it is showing an error :: read failed -ARM7TDMI-S (0X4F1F 0F0F) on Olimex ARM-USB-TINY.

How to solve this issue?I changed JTAG clock divider to different values and checked it again.

But still same error…

Do I have to change any jumper settings on LPCe2468 Board?

Kindly Please reply…and help me…