Analog Devices ADSP-218x Embedded System Software Management ISP Manual

About this manual

This document provides technical notes on using Analog Devices DSP components, specifically focusing on safe in-system programming (ISP) and updating user application code. It details a method to run a systems management software (SMS) on the ADSP-218x to flash user code into an external 4Mbit FLASH component connected via the BDMA port.

The guide explains hardware design requirements, including the use of a dip switch on DATA[7] to select between booting the user application or the system software. It covers the process of downloading the SMS, erasing FLASH sectors, and programming Motorola S2 image files for both the system management software and the user application boot image.

What's inside

• Introduction
• Declarations and Naming
• Application Idea
• Hardware Design
• System Software Design
• First Time Preparations
• Programming User Boot Images
• Caveats

Frequently asked questions

What is the baud rate and parity for the ASCII terminal connection?

The connection requires an ASCII terminal at 9600,N,8,1 (9600 baud, no parity, 8 data bits, 1 stop bit).

Which command erases FLASH sectors?

The command is used to erase destination sectors of the FLASH memory.

How do you select between user code and system software at boot?

Selection is handled by changing a jumper or switch installed on the data memory line DATA[7].