MicroDisCray, a stupid project
Posted: Tue Jul 21, 2015 12:49 pm
Right, last year I got a stupid Idea.
I am going to build a computer based on ECL-Logic, furthermore it is going to be of completly discrete components.
My goal is to build an at least 8-bit box running at 100 MHZ.
You will find schematics and PCB layouts on my project site www.microdiscray.com
I havent simulated any logic, so far (thats Why I am here), but as the work progress, I will post the circuits here.
Reason that I havent been simulating it, is that I've been looking for a simulator that can do both Analog and digital simulation at the same time, however that seemes to be impossible, at least for a low cost.
Hopfully I will be posting the circuit of the ALU-Slice tonight.
So, what am I using, well each 1-bit slice is going to sit on one 6-layer PCB, so to assemble a complete ALU, will require 8 PCB-boards.
Each of them in double eurocard format 233x160mm with approximatly 1000 components on each board.
In total there will be some 400 transistors and some 400 resistors on each board, together with some LED's, connectors etc.
After that the ALU is finiched, I will dig into the other logic.
Obviously all comments and advises are very welcome.
I am going to build a computer based on ECL-Logic, furthermore it is going to be of completly discrete components.
My goal is to build an at least 8-bit box running at 100 MHZ.
You will find schematics and PCB layouts on my project site www.microdiscray.com
I havent simulated any logic, so far (thats Why I am here), but as the work progress, I will post the circuits here.
Reason that I havent been simulating it, is that I've been looking for a simulator that can do both Analog and digital simulation at the same time, however that seemes to be impossible, at least for a low cost.
Hopfully I will be posting the circuit of the ALU-Slice tonight.
So, what am I using, well each 1-bit slice is going to sit on one 6-layer PCB, so to assemble a complete ALU, will require 8 PCB-boards.
Each of them in double eurocard format 233x160mm with approximatly 1000 components on each board.
In total there will be some 400 transistors and some 400 resistors on each board, together with some LED's, connectors etc.
After that the ALU is finiched, I will dig into the other logic.
Obviously all comments and advises are very welcome.