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AR# 66436

Zynq UltraScale+ MPSoC: XSDB is not able to connect to PSU after successfully booting in SD mode on ZCU102

Description

After successfully booting in SD mode on a ZCU102, I am not able to connect to PSU using XSDB to debug:

xsdb% targets
  1  PS TAP
     2  CSU
        3  MicroBlaze CSU (Running)
     4  PMU
        5  MicroBlaze PMU (Running)
     6  PL
  7* DAP (AP transaction error, DAP status 50000021. No debug power)
xsdb%

Solution

In ZCU102 psu_init configuration, MIO26 is configured as an input which is connected to the PMU ROM interrupt. On the board this pin is left for user configuration and driving spurious interrupts to PMU.

The work-around is to remove the configuration of MIO26 in psu_init.

AR# 66436
Date Created 01/19/2016
Last Updated 01/21/2016
Status Active
Type General Article
Devices
  • Zynq UltraScale+ MPSoC
Tools
  • Vivado Design Suite - 2015.4