Problem with connecting to xc2787

Hi 

I want to connect the Xc2787 chip with keil uvision5 and with ulink 2 or miniwiggler programmer but i have a problem.

this chip seems have two jtag port connection which is:

port A:

tms_a : pin39 / tdo_a: pin8 / tdi_a: pin34 / tck_a: pin 82

Port B:

tms_b: pin 118 / tdo_b: pin 121 / tdi_b: pin 117 / tck_b: 115

We connected vref and treset  and ground and reset on both port a and port b but when we press the start/stop debug session, it will say that the jtag device is not connected.

I have checked the tms  and tdi and tck pins via Oscilloscope and i saw that these pins have pulse except tdo pin when i start the debug session 

here is the link of the chip datasheet for you:

https://www.infineon.com/dgdl/Infineon-SAK-XC2787X-200F100L%20AB-DataSheet-v01_03-en.pdf?fileId=db3a304328c6bd5c012912087ab5098e

please help us to how to connect this chip to ulink2 or miniwiggler.

Best regards

Good luck