On Thu, 2013-10-03 at 16:22 +0000, Lindy Mayfield wrote: > If I use the Xlinx Vivado to do the design, will that work with the other= brands like Lattice? No. You have to use the tool flow and programming hardware for the FPGA manu you choose. While theoretically the RTL will be portable, there are certain elements that are proprietary to the manu and even part you are using. TTYL --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .