Category Archives: EET325

Programming the DrACo/Z80

Instructions on how to program the DrACo/Z80, including dealing with the weird Z80 quirks… Continue reading

Posted in Assembly, Coding, Digital, DrACo/Z80, Drexel, EET325, Electronics, HOW-TO | Leave a comment

TTL debugging techniques

Here are some of the most common reasons why a digital circuit might not work, along with tips on how to diagnose the problem. Continue reading

Posted in Design, Digital, EET205, EET325, Electronics, HOW-TO | Leave a comment

Z80 delay loops

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

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Peripheral Interfacing on the 8-bit DrACo/Z80

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