Analog Devices ADSP-2181 EZ-Kit Lite IDMA to PC Printer Port Interface Technical Note

About this manual

This document provides technical notes on using the IDMA port of the ADSP-2181 family to create an interface with a PC printer port. It details the hardware design using an i8255 port expander and level transceivers to connect the DSP's data and strobe lines to the PC. The guide explains how to modify the ADDS-2181-EZ-Kit Lite board to enable IDMA booting and data access.

What's inside

• Introduction
• Application Idea
• Hardware Design
• Software Design
• First Time Preparations
• API functions
• References

Frequently asked questions

What hardware component is required to connect the ADSP-2181 IDMA interface to a PC printer port?

An i8255 port expander is required to connect the four strobe lines and 16 data lines to the PC printer port.

What specific change must be made to the BMODE pin to enable IDMA booting on the ADDS-2181-EZ-Kit-Lite?

The BMODE pin must be lifted from ground and connected to VCC to allow IDMA booting.