Emma's note

Class wk 8

Embedded programming.

Home About Classes Final project Various notes

ASSIGNMENT
Read a microcontroller data sheet.
Program your board to do something, with as many different programming languages
and programming environments as possible.

WHAT I DID
- Programm my board with Arduino UNO.
- Programm and read back my board with FabISP.

MY BOARD - ARDUINO
My inspiration: http://highlowtech.org/?p=1695.

How-to-do list:
- Download Arduino software version 1.0.1
- Download the ATiny master.zip file from the link above.
- Unzip the attiny master.zip file. It should contain an "attiny-master" folder that contains an "attiny" folder.
- Create a new sub-folder called "hardware" in the sketchbook folder, if it doesn't exist already.
- Copy the "attiny" folder (not the attiny-master folder) from the unzipped ATtiny master.zip to the "hardware" folder. You should end up with folder structure like Documents > Arduino > hardware > attiny that contains the file boards.txt and another folder called variants.
- Restart the Arduino development environment.
- Open Arduino Software IDE.
- From Tools menu select the board you are goign to program, ATtiny44 (exteranl clock 20MHz)

- Connect Arduino to your board.

- From Tools menu of Arduino environment select Arduino like your programmer.

- Now I can ready to programm my board.

MY BOARD - FabISP
- Setup the AVR development platform, I started from this tutorial learn/avr/setup-mac.html and chose the Option1.

In the new Terminal window, type in echo $SHELL and press return.

If the output is /bin/bash then type the following command: echo 'PATH=$PATH:/usr/local/bin' >> ~/.bash_profile all on one line. Press return.

If the output is /bin/csh or /bin/tcsh then type the following command: echo 'set path = ($path /usr/local/bin)' >> ~/.cshrc all on one line. Press return.

Close any Terminal windows and open up a new one. This makes sure the .bash_profile or .cshrc is reloaded. Now type in echo $PATH (for bash) or echo $path (for t/csh) you should get something like the following:

The important thing is that at the end of the line is /usr/local/bin.

- From http://www.obdev.at/products/crosspack/index.html I downloaded and installed AVR Dude.
- From http://digistump.com/wiki/digispark/tutorials/connecting I downloaded:

- "Micronucleus tiny85" bootloader version 1.02. From this directory copy micronucleus file (micronucleus-master -> commandline -> builds -> OSX) and paste it in usr/bin/loacl).
- DigisparkArduino environment for Mac

- From Zaerc http://fablab.waag.org/project/fabtinystar I downloaded the firmware for my ISP. To unzip the file: delete .txt and underscores from the name file and unzip it.
- Inside the directory of the firmware and from terminal send the command: "micronucleus --run vusbtiny.hex"
- To check if you can comunicate with the FabISP to your board:

- Connect all your hardware

- on terminal: ">avrdude -c usbtiny -p t44" and if everything is fine you get this:

- Open Arduino1.0.1
- From tools menu select: programmer->USBtinyISP, board->Attiny44 (external 20MHz clock)
- From tools select : click burnbootloader
- Now you can programm the board.

Reminder.
- The brown cable of the rainbow goes to MISO pin, so called pin 1.
- Use Arduino 1.0.1 environment.
- In the FTDI cable the ground is the black wire.
- Keep in mind the pinout of the ATtiny, for instance if you want use the PWM pin of ATtiny45 I will use pin1 or pin0. Take also care that in ATTtiny45-85 digital and analog pin has different names even if the pin is the same, for istance Digital pin 2 = Analog pin 1. The last name mismatch of the ATtiny45-85 doesn't exist in ATtiny44-84.

MY CODE
This is the code I loaded on the board developed during lesson 6.

	Emma's notes
	Class wk 8
	Embedded programming.
		Home About Classes Final project Various notes

	ASSIGNMENT Read a microcontroller data sheet. Program your board to do something, with as many different programming languages and programming environments as possible. WHAT I DID - Programm my board with Arduino UNO. - Programm and read back my board with FabISP. MY BOARD - ARDUINO My inspiration: http://highlowtech.org/?p=1695. How-to-do list: - Download Arduino software version 1.0.1 - Download the ATiny master.zip file from the link above. - Unzip the attiny master.zip file. It should contain an "attiny-master" folder that contains an "attiny" folder. - Create a new sub-folder called "hardware" in the sketchbook folder, if it doesn't exist already. - Copy the "attiny" folder (not the attiny-master folder) from the unzipped ATtiny master.zip to the "hardware" folder. You should end up with folder structure like Documents > Arduino > hardware > attiny that contains the file boards.txt and another folder called variants. - Restart the Arduino development environment. - Open Arduino Software IDE. - From Tools menu select the board you are goign to program, ATtiny44 (exteranl clock 20MHz) - Connect Arduino to your board. - From Tools menu of Arduino environment select Arduino like your programmer. - Now I can ready to programm my board. MY BOARD - FabISP - Setup the AVR development platform, I started from this tutorial learn/avr/setup-mac.html and chose the Option1. In the new Terminal window, type in echo $SHELL and press return. If the output is /bin/bash then type the following command: echo 'PATH=$PATH:/usr/local/bin' >> ~/.bash_profile all on one line. Press return. If the output is /bin/csh or /bin/tcsh then type the following command: echo 'set path = ($path /usr/local/bin)' >> ~/.cshrc all on one line. Press return. Close any Terminal windows and open up a new one. This makes sure the .bash_profile or .cshrc is reloaded. Now type in echo $PATH (for bash) or echo $path (for t/csh) you should get something like the following: The important thing is that at the end of the line is /usr/local/bin. - From http://www.obdev.at/products/crosspack/index.html I downloaded and installed AVR Dude. - From http://digistump.com/wiki/digispark/tutorials/connecting I downloaded: - "Micronucleus tiny85" bootloader version 1.02. From this directory copy micronucleus file (micronucleus-master -> commandline -> builds -> OSX) and paste it in usr/bin/loacl). - DigisparkArduino environment for Mac - From Zaerc http://fablab.waag.org/project/fabtinystar I downloaded the firmware for my ISP. To unzip the file: delete .txt and underscores from the name file and unzip it. - Inside the directory of the firmware and from terminal send the command: "micronucleus --run vusbtiny.hex" - To check if you can comunicate with the FabISP to your board: - Connect all your hardware - on terminal: ">avrdude -c usbtiny -p t44" and if everything is fine you get this: - Open Arduino1.0.1 - From tools menu select: programmer->USBtinyISP, board->Attiny44 (external 20MHz clock) - From tools select : click burnbootloader - Now you can programm the board. Reminder. - The brown cable of the rainbow goes to MISO pin, so called pin 1. - Use Arduino 1.0.1 environment. - In the FTDI cable the ground is the black wire. - Keep in mind the pinout of the ATtiny, for instance if you want use the PWM pin of ATtiny45 I will use pin1 or pin0. Take also care that in ATTtiny45-85 digital and analog pin has different names even if the pin is the same, for istance Digital pin 2 = Analog pin 1. The last name mismatch of the ATtiny45-85 doesn't exist in ATtiny44-84. MY CODE This is the code I loaded on the board developed during lesson 6.