Quote Originally Posted by Larry View Post
I'm trying to put a display on an LCD using the '886. and am using a 4MHZ internal clock. I can't make it work. I can substitute a '876 in the same circuit with a Xtal osc. and it works fine. Any ideas? My display is a LM044L, 20X4.
You need to read the datasheet regarding all of the PORTs used to control your LCD. The PORTs on the '88x line have new features, requiring new register settings. Unfortunately, the default register settings make them incompatible with old code without edits. I can't remember the settings off-hand, but I do know from experience that reading and setting each and every register setting will get it to work.