ECE497 CAN Cape

Embedded Linux Class by Mark A. Yoder

Team members: David Mehl and Sabeeh Khan

Grading Template

I'm using the following template to grade. Each slot is 10 points. 0 = Missing, 5=OK, 10=Wow!

00 Executive Summary
00 Installation Instructions 
00 User Instructions
00 Highlights
00 Theory of Operation
00 Work Breakdown
00 Future Work
00 Conclusions
00 Demo
00 Late
Comments: I'm looking forward to seeing this.

Score:  10/100

(Inline Comment)

Executive Summary

Our project combines a cape circuit board design with the necessary software to configure the Beaglebone Black in order to view the messages on a CAN bus using the can-utils package. The use of jumpers allows for the cape to be adaptable to different situations (such as CAN development, sniffing a vehicle bus, evaluating CAN transceivers, etc) by allowing the user to select whether or not to use a terminating resistor, 3.3V or 5V for the transceiver chip, and if they would like an OBD-II signal ground to be connected to the ground pour of the board.

The first revision of the circuit board has been tested and is functioning as expected, and the configuration script is setting up the pins properly. We were able to read the CAN messages off of a homemade CAN bus built out of two dsPIC33EV256GM102 microcontrollers

We attempted to use a device tree overlay, but it failed to configure the pin registers correctly, if at all. We will be investigating this issue further, but as far as functionality is concerned the configuration script gets the cape to work without issue

The CAN cape will be an excellent tool for anyone wishing to look at CAN communication traffic on a bus or attempting to explore CAN system development. It will be flexible enough to meet almost all CAN development needs with only minor adjustments required to the setup steps to achieve different functionality (active bus participant vs. spy, setting bitrate, etc)

Packaging

If you have hardware, consider Small Build, Big Execuition for ideas on the final packaging.

Installation Instructions

Give step by step instructions on how to install your project.

• Include your github path as a link like this to the read-only git site: https://github.com/MarkAYoder/gitLearn.
• Be sure your README.md is includes an up-to-date and clear description of your project so that someone who comes across you git repository can quickly learn what you did and how they can reproduce it.
• Include a Makefile for you code.
• Include any additional packages installed via opkg.
• Include kernel mods.
• If there is extra hardware needed, include links to where it can be obtained.

User Instructions

Once everything is installed, how do you use the program? Give details here, so if you have a long user manual, link to it here.

Highlights

Here is where you brag about what your project can do.

Include a YouTube demo.

Theory of Operation

Give a high level overview of the structure of your software. Are you using GStreamer? Show a diagram of the pipeline. Are you running multiple tasks? Show what they do and how they interact.

Work Breakdown

Create PCB Footprints: Sabeeh and David

Create Schematic: David

Create PCB Layout: David

Explore Device Tree Overlays: Sabeeh

Create Setup Script: Sabeeh

Verify First Revision PCB: Sabeeh and David

Verify Second Revision PCB: Work in Progress, target date 11/8/16

Verify Overall Functionality: Work in Progress, target date 11/8/16

Enhance User Interface: Time permitting, target date 11/10/16

Future Work

Suggest addition things that could be done with this project.

Conclusions

Give some concluding thoughts about the project. Suggest some future additions that could make it even more interesting.

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Embedded Linux Class by Mark A. Yoder