Debugging writes to a 74LS574 attached to the 6502 data bus I saw these signals which are a bit different from what I would expect. Here is the clock signal:

Channel 1 is the select line that gets triggered by writes to 0x0340. Channel 2 is the clock pulsing at 500kHz. Here is an example from one of the datalines:

Is it normal that while clock signal is 0 the datalines show a slope? If not, any idea where it might come from?

thanks for any answer

_________________
No simulation survives contact with reality!

I think that may be as expected: with the clock low, the databus is undriven, and any TTL loads will tend to pull the signals high.

thanks

_________________
No simulation survives contact with reality!