Some problems about Configration and board debug

Hello jerry , thanks for your kind-hearted reply ,the conf_down ,nstatus , nconfig pins of the four device are tied together ,and by a 10k resistor pull up to 3.3v(as the description of the attchment) ,i know this types of design my cause jtag chain configration failed ,but according to the handbook ,this won't affect the muti-device as configration ? i have check the status of conf_down ,nstatus after as configration , both of them operate at a status of low .