Forum Discussion
CSoti
New Contributor
6 years agoProblem resolved and it is a quartus software issue.
The problem was caused by the HDL generated files from platform designer. I changed the option to generate the HDL files from VHDL to Verilog and then in quartus I changed the compiler settings for Verilog input to system verilog.
The problem disappeared. Clearly there is a problem with the avalon MM address space interpretation when generating VHDL files.
Problem solved.