As I build the bus supervisor module last time, I just want to do some debug without using raspberry-pi and the bus supervisor module, and I think sometime it will be nice to do the hex code debugging using the bus monitor module and some sort of single step method. Furthermore, I think it also nice to have the slow clock without the bus supervisor module for code monitoring via the bus monitor module, and I think it look nice to have slow clock running for a demo too ! So this time I try to build the single stepper module, also designed by Dr. Scott M. Baker. As usual, Dr. Scott made a link to order the PCB at OshPark, so this time I also manufactured the PCB at OshPark.
Here is the PCB, look very nice, a low-profile rc2014 module. This time I missed up to take a shot of the components, so there is no components pictures here. I decided to use the angle tactile switch for reset and the angle potentiometer to to control the CPU clock, so we can do single-step and clock speed control from the top of the rc2014.
Here is the finished board, as usual have the flux cleaned up on the soldering side.
Here is the finished board, full implemented with all the ICs and jumpers. We can switch modes from run to slow clock and to single step with the middle switch. Overall, I think this module is very nice and I like it very much. I always use it for retro display on my desk.