AR# 22179: Virtex-4 FX - How do I determine PowerPC startup, hang, or reset issues?
AR# 22179
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Virtex-4 FX - How do I determine PowerPC startup, hang, or reset issues?
描述
Keywords: PPC, PPC405, 0x00000000, XMD, connect
How do I determine PowerPC (PPC) startup issues?
解决方案
To determine PPC startup issues, use the following guidelines:
- On power up, PPC does not boot as follows: * Independent of frequency or configuration mode * Independent of JTAG chain setup (with or without JTAGPPC) * With or without DCMs
- FPGA configures correctly, and FPGA logic works
- Asserting PPC reset has no effect
- XMD cannot connect to the PPC
- Instrumented design with ChipScope: * Instruction side PPC Request to 0xFFFFFFFC is followed by request 0x????0800 (observe behavior with PLB IBA or ILA on C405DBGWBIAR port)