Posts with «cpu» label

Cambridge-1 is a 4-bit homebrew 7400-based CPU

Richard of ARITH-MATIC had the idea to build a 4-bit computer based on 7400 series ICs (like the 74HC273, 74HC193, and 74HC125), but other responsibilities got in the way of this becoming a reality for quite some time. Finally, with the Retro Computer Festival at the Centre for Computing History in Cambridge, England held earlier this month, he went ahead and started the project in hopes of creating a working computer in under 30 days.

The resulting homebrew CPU is known as the ‘Cambridge-1,’ comprised mostly of 7400 series ICs, wiring, and an SRAM chip for storage carefully arranged on a set of breadboards. In addition to the other components, an Arduino Micro is also implemented. While not technically a retro device, the Arduino allowed him to “change the control logic on-the fly,” and gave him the flexibility to finish the project in his compressed time scale.

Arduino Blog 26 Sep 19:01

Why not CPU's like intel or AMD instead of Microchip or Pickaxe and the like

First off I know very little about programing! But it seems to me that since there are tones of old CPUs around, many simply for the taking.

Why not use these on the larger complex Robots instead using two or three or more MCUs. 

But honestly I use one or two PIC chips on my small tinkerings. But I have larger project that I "think" I can see the CPU as being a much better fit. 

Am I missing something so fundamental that it boarders on the absurd?

Please, any I deas and feedbacks are welcome!


Let's Make Robots 01 Jan 00:00
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