ILA调试

在vivado 里面添加 ILA 进行调试，下载bit后没有 ILA 界面跳出。
WARNING: [Labtools 27-3361] The debug hub core was not detected.
Resolution:
1. Make sure the clock connected to the debug hub (dbg_hub) core is a free running clock and is active.
2. Make sure the BSCAN_SWITCH_USER_MASK device property in Vivado Hardware Manager reflects the user scan chain setting in the design and refresh the device.  To determine the user scan chain setting in the design, open the implemented design and use 'get_property C_USER_SCAN_CHAIN [get_debug_cores dbg_hub]'.
For more details on setting the scan chain property, consult the Vivado Debug and Programming User Guide (UG908).
WARNING: [Labtools 27-3413] Dropping logic core with cellname:'ila_0_inst' at location 'uuid_D8923DF3E0CA58EF8F947DE50E816F31' from probes file, since it cannot be found on the programmed device.