I must be brain dead. ;) Thanks for the kick start. I knew that back when I was getting more sleep than 4 hours a night. My FAE missed reminding me of that one too. Thanks again. At 10:29 PM 7/31/97 -0400, you wrote: >Larry, > >RA4 is always a Open Collector (Drain) bit. It can never drive any kind of >voltage. > >If you are driving logic, and have to use this pin, pull it up with a 1K (or >thereabouts) resistor. > >Good Luck, > >myke >>I have the ADCON 1 set to 04 hex and the TRIS A register configured to give >>bits 4 and 5 as outputs. When I write port a with a BSF instruction I can >>toggle bit 5 but not bit 4. The Simulator shows it working ok but not the >>emulator. Anyone have any ideas? I already changed the Bondout chip >>thinking I had a blown port. As usual these problems happen on deadline and >>tend to be show stoppers. >> >>As always any help or words of wisdom are greatly appreciated. >> >> >>Larry G. Nelson Sr. >>L.Nelson@ieee.org >>http://www.ultranet.com/~nr >> >> > >"If at first you don't succeed, then maybe sky diving isn't the sport for >you" - Steve Smith > > Larry G. Nelson Sr. L.Nelson@ieee.org http://www.ultranet.com/~nr