On Wed, May 2, 2018 at 4:25 AM, Jeffrey Birt <[email protected]> wrote: > > Thanks for the response concerning the 40H parts. > > > > I took some time this evening to very carefully look at all the signals on > the 80C55. I thought I saw some odd waveforms and after setting the scope to > single shot mode I did indeed see some oddness on AD0 through AD7. > > > > Take a look: https://1drv.ms/u/s!AtH4vpaZnzX7j8A29GFkjLbQlWpLUA
those aren't necessarily bad signals if they happen for example when a bus transceiver is disabled and the signals start to float to a mid-voltage value. Also you see some spikes on trasceivers signals when they switch direction. Frank
