[PETERg0rsq]

Today things not looking so promising!

With the same setup the signal generator refuses to boot up!

I am also having problems with my logic analyser, which is not clocking on the E line.

When I use the internal clock (20MHz), the E is a perfect squarewave, but not getting reliable results when using E as external clock.

Need to sort this out before I can move on again. I am sure I am close. I have lost confidence in the data I am looking at!

When I scope all the logic and PSU lines they are all a good 5V, with no significant noise. I scoped the E line looking for wide, or short pulses but found nothing

The power supplies are all up before RESET.

I will look to see if I have any spare EPOMS and burn some new ones to try.

My capacitors have arrived, so will replace all these.

I cant do anything over the weekend, so will come back as soon as I have anything more to add

Thanks for all the help

peter