 | | LCD & serial connection —Tunde
| | | | Thanks to those of you who sent your suggestions regarding the message below. I tried it all (replacing the LCD, checking each pin on both the RAM and the octal transparent latch 74HC373 for continuity, double checking the installed parts, I even (...) (27 years ago, 24-Apr-97, to lugnet.robotics.handyboard)
| | | | | | | | | | Re: LCD & serial connection —Fred G. Martin
| | | | | It is possible you have a bum 6811. I have seen 6811's with bad output address lines. this causes mirroring in the RAM as what should be multiple locations get mapped to the same byte in memory. The downloader thinks things are working because each (...) (27 years ago, 24-Apr-97, to lugnet.robotics.handyboard)
| | | | | | |
