At specific temperature bands, the following problems have been observed with CPM5 and CPM4:
CPM5:
- In-deterministic behaviors are observed on the interfaces operating at user_clk. The problem is limited to PCIe Controller only mode.
CPM4:
- For Controller only mode, the user_clk based PL fabric logic is stuck in the reset state.
- In DMA mode, along with the above symptom, the DMA bar access fails.
Note: this issue is observed exclusively within temperature bands specific to the system. It will work normally beyond the given temperature bands.
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For more information on PCIe Debug, see https://xilinx.github.io/pcie-debug-kmap/pciedebug/build/html/index.html