Hi skybird,
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Fatal Error! : Memory map is not consistent with memory image file - check that file 'Debug/hello_world_4.elf' is compiled and linked for system '
D:\test\lab5\my_cpu.ptf'[/b]
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from this message, I think that your software project it's not correctly linked with your hardware configuration: I mean, when u have created your project have you specified the file "my_cpu.ptf" and created an associated system library?...or have u downloaded the correct hardware configuration to FPGA, before downloading software project?
bye