I recently got TS68000 microprocessor. My final goal is to build a simple computer based on that CPU.
For now I am trying to find a way to single step it.
I found schematic below by
John Tsiombikas and I tried to introduce it but I failed...
Below is run using 10MHz clock.
I de-bounced my switch (used with pull-up resistor to revert the logic) and connected it to
SN74LS93N (4 input NAND - Schmitt Trigger) - 3 pins are set
HIGH and 1 is driven by button so when I press the button the output goes
Output of this gate is connected to
MM74C74N (Dual D Flip Flop) - D-Flipflop - output(
Q) is connected to second D-Flipflop
Second Flip Flop
Q' output are both connected to - dual Input NAND gate - output from this gate is what I am after(
However when I press the button is stays HIGH for longer than 1 clock cycle as explained in John's video
Not sure what am I doing wrong...
P.S - I hope you can read my writing... I am not the best drawing schematics...