>oscillator i see the message that was loaded with th RC oscillator >eventhoug in the program i wrote in the configuration : __config_xt_osc, >besides when i use the "&" character in that instruction the MPLAB send >me a message that says illegal character, what is wrong? If you're using MPLAB to assemble the code and it's giving you an error, it sometimes helps to include your code along with your question so that we can identify it. Just telling us the problem doesn't really indicate to us where you went wrong, unless someone just happened to have the exact same problem before. One thing that might help: "__config_xt_osc" doesn't seem valid; you need a space in there. Your configuration instruction should look similar to this: __CONFIG _CP_OFF & _XT_OSC & _PWRTE_ON & _WDT_OFF Note that there is no "&" between the __config directive and the first configuration word. --Andrew _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads