co processor design problem

Unfortunately I'm neither familiar to any TI DSP nor plan a related project. I reviewed the cyclone ii fft co-processor reference design documentation (AN375) and took a look on the design files to understand your problem. It seems to me, that the interface is documented sufficiently. The access method from DSP side called edma may or may be not applicable for your DSP. I think, it's a good service from Altera design engineers to provide a complete reference design including the DSP code. As far as I understand, it's basically applicable for TMS320C6000 family, but there may be differences with your specific processor or due to changes of the TI design enviroment.