Getting started with AtTiny3226

This project will show you how to get started with a tinyAVR-2 processor, specifically an AtTiny3226. We will be using basic tools:

• avrgcc compiler
• make utility
• avrdude firmware utility
• prototype pcb board
• usb to serial-port

See full documentation

Project summary

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Avrgcc compiler

• Where to get the compiler
• How to set it up

See details

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Mounting a processor on a protoboard

• Schematic diagram
• Minimal Blink-led application
• UPDI connector for programming
• Example protoboard

See details

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Sourcecode for Blink-led

• Full sourcecode
• Detailed explanation per section.

See details

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Project Make file

Using an easy-to-use make script with step-by-step explanation of each section.

• Setting macros
• Setting compiler options
• Compile sources to .elf
• Extract .hex file from .elf
• Extract assembly listing from .elf
• Write firmware into target
• Update fuses in target

See details

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Downloading firmware into target

Using avrdude and an USB-serialport

• Required hardware
• How to connect
• Using serialupdi protocol

See details

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Explanation of processor fuses

• What do they mean
• How can you change them

See details

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Who needs PROGMEM

• PROGMEM is no longer required. No more literal strings in SRAM.
• PROGMEM is supported and still works, but only needed for library functions that use pgm_read..() functions from <avr/pgmspace.h>

See details

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See full project documentation