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Technical University of Iasi - Fac. Automation and Computers
Design with microprocessors

Friday, 1 Feb., 2119
Time 12:18

Experiment No. 3

E3.1 Name:

ARM Cortex M3 mbed - ByteDisplay extension

E3.2 Overview, purpose:

Exploring ARM mbed extensions and using ByteDisply / 7segment displays to view binary information. At the end of the lab, basic information will be provided on how to feed the expanded mbed platform, making extensions as well as using the bus and ticker classes in the cloud compiler structure available in the cloud.

E3. 3 Resources:

Pmbed Platform, ByteDisplay extension, 7v, browser and connection to www.mbed.org, 7-segment extension, oscilloscope.

E3.4 Programs example:

Prototype1
Prototype Program2

E2.5 Experiment Run / Tracking Mode:

Analyze

the mbed power scheme

and identify the power mode and identify the signals at the extension ports.

Analyze the internal structure of the 3.3v stabilizer
Analyze the internal structure of the current limiter provided by USB
Analyze the role of the diodes included in the mbed power scheme
Analyze how to make ByteDisplay binary extensions
Analyze / identify LPC 1768 microcontroller pin groups;
Examine the classes for instantiating data transfer operations through inbound / outbound ports;
Identify the resources involved in the time sharing process and run the softwarefoot;
Solve the proposed problems.

E3.6 Proposed Issues:

1. Modify the prototype program so that byteDisplay displays a reversible counter;

2. Attach a byteDisplay to the J3 connector and create a program that will display a binary count;

3. Make a program that will display on bits of display 2 binary counts of 4 bits;

4. Highlight the length of a counting cycle from 1 to 256

5. Attach to the J2 connector a seven-segment display cell according to the sheme and make a program that will display the figures from 0 to 9.

E3.7 The experiment can be extended to:

Making a flexible embedded computer with standard components;

Developing Internet of Things for Future Internet;

Make extensions for iPhone / iPad / Android

E3.8 Collateral Information: