HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comment
BillGiovino
User Rank
Iron
Re: Feb 19 - Day 2 - Selecting an 8-bit Microcontroller
BillGiovino   2/19/2013 2:49:35 PM
NO RATINGS
Here's a what if. Say your application is a straightforward industrial process that can be handled by an 8 bit MCU. However, when upset conditions occur then suddenly all sorts of interrupts happen, complex software decisions need to be made, real time response is required. Would it be feasible to design a system with a seperate MCU, maybe 32 bit, to deal with the more complex software environment, rather than trying to cram everything into a one big MCU? Especially considering that upsets should be very rare..

If you are as interrupt-intenseve as you say, you have two options:

1) A 16-bit microcontroller. Why? because you have extra proessing power and don't have the interrupt overhead of a 32-bit MCU

2) Go like you said - an 8-bit as a dedicated interrupt processor, interfacing to a larger 32-bit or 26-bit system controller. I see this a lot



Partner Zone
Latest Analysis
Thanks to the Internet of Things, hardware developers are undertaking a flurry of potentially lucrative software developments.
After 10 years of evolution, the prototypes of NASA’s Orion “glass cockpit” are finally reaching maturity.
While there are tremendous opportunities in the consumer space for AR, a Juniper Research report says the enterprise AR market will grow tenfold by 2019.
Sherlock Ohms highlights stories told by engineers who have used their deductive reasoning and technical prowess to troubleshoot and solve the most perplexing engineering mysteries.
DuPont's cyber security assessment of its Texas plants is an effective blueprint for anyone looking to create a strategy for cyber protection.
More:Blogs|News
Design News Webinar Series
6/25/2015 11:00 a.m. California / 2:00 p.m. New York
6/24/2015 11:00 a.m. California / 2:00 p.m. New York
6/11/2015 11:00 a.m. California / 2:00 p.m. New York
8/13/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Aug 3 - 7, Developing, Testing, and Troubleshooting IPv4 and IPv6 Using Wireshark
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Course August 25-27:
Sponsored by Stratasys
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service