Our spartan3IC is xc3s50 and has only 1728 logic cells we are implementing a 16 bit RISC core with Some peripherals ..Now We are at Subsystem design level and find it difficult to verify the ouput with LEDS on the board Itself so We want to Migrate to Chipscope ...How much resource will be consumed ..We have no experience with chipscope .....
It will use some, but it will depend on how many signal you add into chipscope. Its generally quite small for LEs, but more BRAM is consumed for more signals/larger capture size.