Comments on: Control Matrix Programming

By: Kyle

Kyle — Tue, 20 Jan 2015 18:19:22 +0000

That is the Radioshack Electronics Learning Lab. It is essentially a glorified breadboard with extraneous components. It is super useful for prototyping. In this setup I utilized the momentary push switches and the DPDT switch (as well as the power rail).

By: juke

juke — Wed, 24 Sep 2014 04:45:25 +0000

what is this radioshack board ?

By: Cody

Cody — Sun, 17 Mar 2013 03:01:12 +0000

How are the registers only updated on the rising clock pulse? The diagrams only had the input and output pins on the registers. Is there a pin not shown?

By: Kyle

Kyle — Tue, 26 Feb 2013 17:52:46 +0000

I’m not exactly sure what is causing that problem for you. If I recall correctly, when the control matrix sent out the (~RO,~AI) control, and then the A register was updated with the addressed byte in memory on the next rising clock pulse. Perhaps you are trying to run the control matrix and the registers on the same clock cycle. I set the structure of my computer up so that the control words for each OP are output on the falling clock pulses, and the registers are updated on the rising. The time in-between rising and falling pulses should be well enough for the memory to set up the current byte for loading.

By: Cody

Cody — Tue, 26 Feb 2013 16:39:11 +0000

When the control matrix outputs the RO,AI control word how do you keep the timing right? What if the program memory stops outputting before the A register can input the value. I tested it in a circuit simulator and it did not work correctly with the timing issues.

By: Automatización Industrial | Diseño e ingeniería de sistemas automáticos | programación de PLC | sistemas Scadas y redes.

Wed, 02 May 2012 02:08:26 +0000

My brother recommended I might like this web site. He was once entirely right. This put up truly made my day. You cann’t believe simply how much time I had spent for this info! Thanks!