Category Archives: DrACo/Z80

Z80 delay loops

Posted on 2012-06-01 by M. Eric Carr

The “spinloop” is a useful, basic tool for creating simple delays in machine code. Continue reading →

Posted in Assembly, Coding, Digital, DrACo/Z80, Drexel, EET325 | Leave a comment

Peripheral Interfacing on the 8-bit DrACo/Z80

Posted on 2012-05-30 by M. Eric Carr

Interfacing peripherals with the 8-bit version of the DrACo/Z80 is still possible. Here’s how. Continue reading →

Posted in Assembly, Digital, DrACo/Z80, Drexel, EET325 | Leave a comment

Ugly hack of the week

Posted on 2012-04-17 by M. Eric Carr

A lack of 74LS245s leads to an ugly-but-effective design hack… Continue reading →

Posted in Digital, DrACo/Z80, Drexel, Hacks | Leave a comment

TIL311 replacement

Posted on 2011-09-26 by M. Eric Carr

A modern replacement of the venerable-but-expensive TIL311 hex display. Continue reading →

Posted in Assembly, Coding, Components, Digital, DrACo/Z80, Drexel, EET325, Electronics, Level 3, Nostalgia, PIC Microcontrollers, Projects | Tagged , , , , , | 5 Comments