User:Frosti/Hello World

Fab Academy - Hello World project

I made Hello.light. Sensor and Hello.RGB board.

Things that I have learned.

• It's very important to turn things rightly.
• Remember that on microcontroler that 1 is where the dot is.
• About resistors, you should notice the difference between 10 Ohm and 10.000 Ohm.

Problems not solved yet, 2009-11-11.

• RGB Chip is not working properly.
• Program has been installed but it doesn't work properly

Programming the board in Windows

1. Open AVR studio.
2. Select New Project -> Project Name -> Atmel AVR Studio
3. Select Atiny44 Next ->Finish
4. Copy paste .asm code into the project
5. Build -> Build and Run

Connect programming cable and serial cable.

Copy the .hex file into avrdude folder on C:\

• Open cmd
• tiny44 load hex file: avrdude -p t44 -c bsd -U flash:w:file.hex
• tiny44 use 20 MHz xtal: avrdude -p t44 -c bsd -U lfuse:w:0x7E:m

Problem:

• can't open device giveio

Solution:

• Load the driver using: loaddrv.exe
• open avrdude in cmd and write: loaddrv start giveio

(then it says: starting giveio..... ok.)

In Ubuntu I made hello.Step45.MTA.cad board

• Turn .asm file to .hex file
• open terminal go to the same location as the .asm file, write gavrasm filename.asm and press enter.

Programming hello.step45 board in Ubuntu frosti@frosti:~/Desktop$ avrdude -p t45 -P /dev/ttyS0 -c dasa -U flash:w:hello.step.45.hex

• Connect the programming cable
• open terminal go to the same location as the .hex file
• Problem I could not program, because it seemed to lack energy.

I connected battery cable to the 4 pin +, - to the ground part.

• Then I could program it using right cable and writing the lines above.
• Next step was to get program working so I downloaded hello.step.45.py
• Then I opened the terminal and wrote frosti@frosti:~/Desktop$ python hello.step.45.py /dev/ttyS0 and press enter
• Yes belive it or not it works

Serial cable serial header plug <-> DB9F cable (wire side view):

     plug                 DB9
   GND (1)   ------------- 5
-- DTR   (2) --- cable --- 4
--  Tx (3)   - direction - 3
    Rx   (4) ------------- 2

  plug      4   3   2   1
       DCD  Rx  Tx DTR GND
         DSR RTS CTS  RI
  DB9   1   2   3   4   5
  DB9     6   7   8   9