I have been doing most of my projects using an Dallas Semi DS5000K so that I didn't have to fight with EPROMs when it was time to download my program. I am now working on a new project using the 87c550 and would like to have the same kind of configuration. I have been swaping ram chips back and forth but it is a real pain. Is there a easy way to accomplish what I am wanting w/o sending me back to the store to buy a EPROM programmer and an adapter for the 87c550?