1 / 39

Designing with Components

en.wikipedia.org/wiki/Microcontroller. A microcontroller can be considered a self-contained system with a processor, memory and peripherals and can be used as an embedded system.. Typical Peripherals. Digital I/OParallel Slave PortTimers and CountersInput CaptureOutput ComparePulse Width Modula

delores
Download Presentation

Designing with Components

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Designing with Components Wilmer Arellano

    2. en.wikipedia.org/wiki/Microcontroller A microcontroller can be considered a self-contained system with a processor, memory and peripherals and can be used as an embedded system.

    3. Typical Peripherals Digital I/O Parallel Slave Port Timers and Counters Input Capture Output Compare Pulse Width Modulator Synchronous Serial Asynchronous Serial A/D Converter Analog Comparator Miscellaneous

    4. Pin Multiplexing In a microcontroller the pins usually serve more than one purpose

    5. Choosing a Microcontroller Choose one that you are familiar with or that is easy to learn

    6. http://arduino.cc/

    7. Choosing a Microcontroller When possible select a self contained board that can be used as a learning lab

    8. http://www.mikroe.com

    10. http://mbed.org/

    11. Choosing a Microcontroller Additional boards and accessories available may help

    12. http://www.mikroe.com

    13. http://arduino.cc/

    14. http://elmicro.com

    15. Choosing a Microcontroller Select one where many libraries are available

    21. Choosing a Microcontroller Make sure that good online documentation is available http://www.mikroe.com/en/books/ http://arduino.cc/en/Tutorial/HomePage

    22. Choosing a Microcontroller If you are new to this type of components and the project allows: Start with a simple microcontroller Then switch to a more powerful one

    24. Traffic Light Control Int ledRed = 13; int ledGreen = 11; int ledYellow = 12; void setup() {   pinMode(ledRed, OUTPUT);      // sets the digital pin as output   pinMode(ledYellow, OUTPUT);      // sets the digital pin as output   pinMode(ledGreen, OUTPUT);      // sets the digital pin as output } void loop() {   digitalWrite(ledGreen, HIGH);   // sets the Green LED on   delay(1000);                  // waits for a second   digitalWrite(ledGreen, LOW);    // sets the Green LED off   digitalWrite(ledYellow,HIGH);   // sets the Yellow LED on   delay(1000);                  // waits for a second   digitalWrite(ledYellow, LOW);    // sets the Yellow LED off   digitalWrite(ledRed, HIGH);   // sets the Red LED on   delay(1000);                  // waits for a second   digitalWrite(ledRed, LOW);    // sets the Reed LED off }

    25. Arduino UNO Board

    26. Arduino UNO Board

    27. Prototyping Example

    28. Arduino Ethernet Shield

    30. Example #include <Ethernet.h> // network configuration. gateway and subnet are optional. byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; byte ip[] = { 10, 0, 0, 177 }; byte gateway[] = { 10, 0, 0, 1 }; byte subnet[] = { 255, 255, 0, 0 }; // telnet defaults to port 23 Server server = Server(23); void setup() { // initialize the ethernet device Ethernet.begin(mac, ip, gateway, subnet); // start listening for clients server.begin(); } void loop() { Client client = server.available(); if (client) { server.write(client.read()); } }

    31. Arduino ADK The Arduino ADK is a microcontroller board based on the ATmega2560 (datasheet). It has a USB host interface to connect with Android based phones, based on the MAX3421e IC.

    32. Arduino ADK

    33. Choosing a Microcontroller Make sure you can meet the throughput One line of C code can transform into many lines of assembly If necessary take one step further

    34. ColdFire V1 ColdFire® Core brings 8-bit ease of use to 32-bit performance V2 ColdFire Core

    36. ColdFire V3 ColdFire Core: Single-Issue + Pipelined Local Refined instruction prefetch pipeline Branch prediction capabilities Higher frequencies of operation V4e ColdFire Core: Limited Superscalar High performance IP Core for the 68K/ColdFire family Partial superscalar execution Harvard memory architecture resulting in enhanced bandwidth Support for variable sized instruction caches and data caches Minimal change-of-flow program execution time via sophisticated 2 level branch acceleration Virtual memory management unit (MMU)

    37. ColdFire

    39. Summary Choose one that you are familiar with or that is easy to learn When possible select a self contained board that can be used as a learning lab Make a pin count per peripheral required ADC, UARTS, etc Additional boards and accessories available may help Select one where many libraries are available If you are new to this type of components and the project allows: Start with a simple one Make sure you can meet the throughput One line of C code can transform into many lines of assembly If necessary take one step further

More Related