MPSoC Debug

Zynq MPSoC Debug Troubleshooting

#	Problem	Possible reason, fix and workaround	Fix(es) or workaround
1	Debug freezes on DDR4 init	DDR4 init can be done only once, if the PS DDR4 was initialized then any attempt of double init, by FSBL c code or psu_init.tcl will freeze	Power cycle or hardware reset is required to clear DDR4 registers
2	Debug freezes on SERDES init	On TE0808 Si5345 is not initialized after power-up by default, and if the FSBL was generated from Vivado project that enables any PS GT, then FSBL or psu_init.tcl would freeze	Programming the Si5345 OTP, disabling all PS GT in Vivado, starting an FSBL that does init Si5345 then debugging without power cycle, using Silabs desktop programmer to init Si5345.