ATtiny2313 pin mapping

Pinout:

Link to the spec sheet

http://www.atmel.com/Images/doc2543.pdf

what im trying to say is that i dont know what does PA 0 for example means or PB1.

I even tried googling PB0 pin but i get stuck at a black berry forum

I need the red text from here couse i have no idea where to connect stuff

Again thaks in advance couse i just cant find anything on that topic

It means Port, letter and position.

so PB0 is Bit 0 on Port B.

PD7 Bit 7 (the last bit in the 8 bit port) on Port D.

INT is an Interupt pin (or just part of a Port depending how you config it).

AN0 would be analog 0 (but can also be a digital Bit on a port as well).

the PDF file from Atmel for this chip should explain the pin definitions normally.

you`ll also have to transpose them manually.

hope that helps

That was verry helpful, i will try to make a diagram and post it to make sure that im correct.

Thnaks alot!

So is that how the pins are numbered?    Oh and PB2,PB3,PB4 and PD5 are PWM pins , right?but they are the only ones

That depends on how the Bootloader is configured. I'm sure there is one out there for the Tiny, but I dont know of one and I don't think the Arduino IDE supports the Tiny. You will probably need to load this with a programer using AVRDude.

If you read over the data sheet, it will explain what each pin can be configured for.

For example;

XTAL1 Input to the inverting Oscillator amplifier and input to the internal clock operating circuit. XTAL1

is an alternate function for PA0.

XTAL2 Output from the inverting Oscillator amplifier. XTAL2 is an alternate function for PA1.

So those pins can be used as either 3-bit Bi-Directional IO port, or you can connect a crystal.

To translate these pins to a "Digital 0, 1, 2 ect" Arduino style layout depends on how the bootloader is set up.

Here is a link I just found,

http://provideyourown.com/2011/arduino-program-attiny/

This might interest you,

http://www.pjrc.com/teensy/

You can program it like an Arduino useing the Teensyduino add on, link further down on that page.

OK i have a few questions

1st- how is the attiny 45 able to have configured pins (digital pin 1 , digital 2 and so on) and the Attiny2313 needs additional work for that?

2nd- i just saw that the teensy can act as a joystick, do you have any idea if it can controll a pc game , for example to have a potentiometer act as a steering wheel?

Thanks!

1. Don't know of any Arduino boards that use the ATtiny 45, it only has 8 pins, so not sure what you mean.

2. I'm Sure it could.

it`s easy, check this out: http://hlt.media.mit.edu/?p=1229

you`de just need to write new definitions for the 2313 to make it work.