"J. Cabral" wrote: > I've compiled sucesseful the project and made a dowload to memory! > > I connected an oscilloscope to the socket pin 2 (used pin 12 as GND) > and ... nothing worked! It's never useful to say "nothing worked". Firstly - did you start the program running? Did you single step to confirm that it executes the code you wrote? Did you examine the contents of TRISA and PORTA to see if the bits actually changed? When using the PICMaster you can do this - it's not like you're just programming a ROM and turning it on. Maybe the lines like "bsf rp0" should be "bsf status,rp0". But your message should be much more detailed when asking for help. Cheers, Clyde -- Clyde Smith-Stubbs | HI-TECH Software, | Voice: +61 7 3354 2411 clyde@hitech.com.au | P.O. Box 103, Alderley, | Fax: +61 7 3354 2422 http://www.hitech.com.au | QLD, 4051, AUSTRALIA. | --------------------------------------------------------------------------- For info on the World's best C cross compilers for embedded systems, point your WWW browser at http://www.hitech.com.au, or email info@hitech.com.au