BAXTER_A@wehi.dn.mu.oz (03/19/91)
Has any one written a better overlay manager thay would like to share? I am using Lattice 4.05 and am having the following problems ( most of which I found by trial and error, because they weren't documented). 1 Chip ram type data must be in root. 2 Some other modules (haven't tracked down why) work fine in root, but crash in other levels. 3 A module cannot be called from two different modules (unless they are in root). 4 Using a set of redirection function calls doesn't work as a way of over comming 3. (It crashes). 5 Code that requires rapid swapping of a single module (I know, I was just testing) crashes. All these problems are overcome by putting everything in root... But it kinda defeats the purpose. Regards Alan