I'm working with Infineon XC16x board ( with XC164 ) and with our production board with a setup for external multiplexed 16 bit RAM and internal ROM . My problem is : using the ULINK interface , with XC16x board I can work both with "OCDS driver for XC16x" and "ULINK driver for XC16x" , but with our board I can work only with "OCDS driver for XC16x" , and I if I try use "ULINK driver for XC16x" I have "JTAG devices not found" . With infineon board I have also correct informations on JTAG devices chain , with our board the list is blank . Maybe this problems became from a wrong startup PINs setup ?