for yours comments first at all sorry for my bad english, but I am from Mexico, Im using rs232 hex com tool for testing all commands i need for my project and everything work in the way is expecting, now my goal is design in basic, i am more asm girl but one think is a big trouble for my is banks memory switch and because basic compiler takes care about and i think the project is going to need all ram posibble from pic for file names array, i am reading and reading pic basic manual and i will divide the project in 4 or 5 parts and test each one until all of then work well and then assemble in only one, you think is a good idea?