Week 9 / semana 9

program your board to do something, with as many different programming languages and programming environments as possible

first try

Second try

Third try

Fourth try

Fifth try

group assignment:

compare the performance and development workflows for other architectures

individual assignment:

read a microcontroller data sheet

I am using a ATtiny44 for my blinking board as well as my ISP programmer

Things that called my attention in the general information:

– 128/256/512 Bytes of Internal SRAM

– Data Retention: 20 years at 85°C / 100 years at 25°C

My board is connected schematically like this

And on the board the traces are linked like this

This is how I connected my pins and their configuration. On red is where I connected the LED, and on green the button.

name	pin	type	description	use
VCC	1		supply voltage
GND	14		ground
PB0	2	Port B	PCINT8/XTAL1/CLKI	XTAL 1 (1)
PB1	3		PCINT9/XTAL2	XTAL 1 (3)
PB2	5		PCINT10/INT0/OC0A/CKOUT
PB3	4		PCINT11/RESET/DW	RESET
PA7	6	Port A	PCINT7/ICP/OC0B/ADC7	LED
PA6	7		PCINT6/OC1A/SDA/MOSI/ADC6	MOSI
PA5	8		PCINT5/OC1B/MISO/DO/ADC5	MISO
PA4	9		PCINT4/T1/SCL/USCK/ADC4	SCK
PA3	10		PCINT3/T0/ADC3	BUTTON
PA2	11		PCINT2/AIN1/ADC2
PA1	12		PCINT1/AIN0/ADC1	RX
PA0	13		PCINT0/AREF/ADC0	TX

Types of ports

The external clock is the XTAL. It is connected to pin 2 and VCC

program your board to do something, with as many different programming languages and programming environments as possible

first try

1. Remove the 0 ohms resistance from the fabISP I did before in order to make it a programmer to program my board later

2. Before and after

Descripción: IMG_20180320_035715.jpg

Descripción: WhatsApp Image 2018-03-20 at 04.27.37.jpeg

Descripción: WhatsApp Image 2018-03-20 at 04.37.45.jpeg

3. Connected both between them and to the computer, been careful that the ground (black cable) was connected to the ground pin in both PCB

4. My computer recognized the FabISP programmer. The other one not, because has nothing loaded yet.

5. I followed this tutorial from Irina Chernyakova

6. Download the hello.ftdi.44.echo.c and the hello.ftdi.44.echo.c.make files from the website. The C file is a text file that contains the code necessary to instruct how to execute the given program. Each .c files has to have a .make counterpart. You can edit Neil's .make file for new projects. Place this files into designated directory on your computer

7. Just click download as

I put it in the assignment folder, but also a copy on the a firmware folder I copied in the desktop

Note: I think there is something wrong with my FabIsp programmer because my computer is always telling that there is a new device that is not recognizable. Suspicious. So I connected another FabISP and the message is not appearing anymore.
When I was testing the voltimeter with my FabIsp a couple of weeks ago, I realized with help of a friend that probably one of the components was not well connected or burned. I will check it later. For now I am going to work with the other FabISP.

8. Also download CrossPack, which installs the AVR code; as well as an FTDI serial server. Both of these are necessary to run through terminal. But I think this is more for mac (apple)

9. FTDI serial server (USB)

10. I went to another tutorial that I think also works for windows. This tutorial describes how to use command line utilities to install and run hello.ftdi.44.echo.c on a basic board used in 863.13

11. Use your terminal to CD into the directory containing the hello.ftdi.44.echo files

12. I wrote the command
make -f hello.ftdi.44.echo.c.make
but does not work

Second try

1. I went to another page
http://archive.fabacademy.org/2016/fablabamsterdam/students/21/08EmbeddedProgramming.html

2. I typed on the cmd:
avrdude –c usbtiny –p t44

3. After trying many ways. No one was working

Third try

4. Last try

5. Cd to the folder with the firmware

6. Make clean

7. Make hex

8. Make fuse

9. And again, did not work

Fourth try

10. Will try with arduino

11. Oscar´s assigment

12. installed the ATtiny package into Arduino (this are not included into Arduino base programm) going to Arduino >> Preferences >> Additional Boards Manager URLs

13. 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

14. Tools >> Board >> Board Manager menu