AVR Burner

DALL-E: "please create a black and white sketch of a chip labeld Atmega368 with a thin smoke cloud and an attached Raspberry Pi"

TL;DR: python3 app.py - open http://localhost:5001 in your browser.

The "AVR Burner" can be used to:

• Read the fuses of an ATmega328P, or
• flash a hex file to an ATmega328P.

Under the hood we use avrdude and a usbasp programmer.

Pre-requisites:

• avrdude installed, and
• usbasp programmer connected to the ATmega328P and the host (Raspberry Pi).

Setup

sudo apt-get install avrdude -y

(manually) Check the Fuses

Read the fuses to stdout:

avrdude -c usbasp -p m328p -U lfuse:r:-:h -U hfuse:r:-:h -U efuse:r:-:h

read the fuses from the ATmega328P and write the (hex) values to files:

avrdude -c usbasp -p m328p -U lfuse:r:low_fuse.hex:h -U hfuse:r:high_fuse.hex:h -U efuse:r:extended_fuse.hex:h

Tip: On linux you might need to use sudo or check the permissions on the USB device, if you encounter: error sending control message: Operation not permitted.

Known Issues

• (copilot) The avrdude command is executed as root (via sudo), which is not ideal.
• (copilot) The avrdude command is executed synchronously, which is not ideal.
• The avrdude command is executed with a fixed set of parameters, which is not ideal (-B 125kHz required, for "cheap" USBasp devices).