_Week08_EMBEDDED PROGRAMMING

_Introduction

In the week of embedded programs we go through differents components and ways to programming this type of systems; basically starting with get know about microcontrollers and microprocessors and its configuration, architectures, the communication between, boards familys and also ente into the datasheet information of each components knowing how can we use it.

_Background

Embedded programming is a specific type of programming that supports the creation of consumer facing or business facing devices that don't operate on traditional operating systems the way that full-scale laptop computers and mobile devices do. The idea of embedded programming is part of what drives the evolution of the digital appliances and equipment in today's IT markets. Embedded programming is also known as embedded software development or embedded systems programming.

Interest links

_Week Assignments

  • Read the ATtiny44 microcontroller data sheet.
  • Program your board to do something.

    • _Workflow /Step by Step

    _Reading ATtiny44 data sheet.

    Trying to understand for the first time the datasheet of the microcontroller was very difficult even right now I don't understand a lot of thing buy it start to get know some concepts of the ATtiny (pins, clock,components) and I think that during the work I will open again and reading the part what I need to understand more of the microcontroller.

    Later through the assigments I came back to this datasheet and it helps me a lot about how to use each PIN, how to improve the internal clock for having more useful PINS, how many memory for uploading an Arduino sketch for example.

    _Arduino programming.

    We got our first class for introduce us Arduino programming with Guillem Camprodon were we know more about the board, the components, the uses and how to start to build a circuit to programm. I worked with Fritzing software for simulate the circuit and also use a resistor calculator for start using LED to programm.

    In Fritzing I put the correct resistor and start to wiring all the components on the BreadBoard for connecting the circuit, then I start for programming some examples like a Blink for the LED, later a Fade ant this the result.

    _Program your board to do something.

    First try on my laptop several times the steps in the tutorial they gave us but I always left this error without specifying and I was advised to do so in a Macbook so I used the Arnau.

    These were the steps I followed to program my board:

  • Once that I have already Arduino installed, I installed the ATtiny package into Arduino (this are not included into Arduino base programm) going to 
        
Arduino >> Preferences >> Additional Boards Manager URLs
    Then paste the following URL into the space 
        
https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json

  • Then open the board in 
        
Tools >> Board >> Board Manager menu
    Find the ATtiny click on install and should appear the INSTALLED word.

  • Later I go to 
        
Tools >> Boards >> Select ATtiny
    And I selected the processor, the clock and the correct USB port and do the Burn Bootloader. 
        
Tools >> Boards >> Select ATtiny
Tools >> Processor >> Select ATtiny44
Tools >> Clock >> Select 20MHz (external)
Tools >> Programmer >> USBtinyISP
Tools >> Burn Bootloader
    Once that the Burn Bootloader its done we can programm as usual the board.

    • For these exercise I worked with the basic examples of Arduino, Blink for the LED, Digital read serial to programm the button and a Fade also defining PIN 5 (PB2) of the ATtiny 44 as the LED.

    NOTES:

  • Be secure of maching the correct pin from ATtiny of the board with the correct Arduino PIN.
  • After getting my computer full of virus and trying to use the FabISP I get always error because of one Windows 10 update that never get installed properly and that gave me a lot of trouble with the dynamic memory. After a lot of work and reinstalled the Windows Image from fabric, my Arduino IDE starts to recognize the FabISP and the AVRdude programmer but soon (I still dont know why) stop to recognize in the Arduino IDE the FabISP but in my computer do recognize it so the after work I continue working with the AVRdude programmer for matter of time of searching a proper solution of this memory error.

    • _FILES

    All the files for this assignment are available to download here