The XCZU19EG board designed by yourself, after the power is turned on, JTAG cannot scan to ARM_DAP, and it will become a dummy_dap, as shown in the following figure. There is no problem with the power supply voltage, PS_POR_B and PS_SRST_B have been pulled high. PS_REF_CLK is a 50MHz clock. PS_ERROR_OUT is pulled low. What is the reason for this situation, and what places need to be tested?