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Re: New urboot bootloader

From: Xiaofan Chen
Subject: Re: New urboot bootloader
Date: Wed, 16 Nov 2022 09:21:30 +0800

urboot is a bootloader based on  STK500v1 protocol, just like
 optiboot. As of now, it only supports classic AVRs.

More details here:

1) Tight code: most bootloaders fit into
256 bytes albeit without EEPROM read/write support
384 bytes with EEPROM read/write support
512 bytes with dual-boot, EEPROM read/write support and Chip 
Erase capability
2) EEPROM read/write support and Chip Erase support
3) Bootloader protects itself from overwriting (default on)

The protocol used is called urprotocol

Best regards,

On Wed, Nov 16, 2022 at 7:33 AM Matt <m7allen@sonic.net> wrote:

What's it do?

(408) 638 - 0273

On 2022-11-15 15:10, Xiaofan Chen wrote:

You may find the new urboot bootloader interesting. Take note
you need avrdude git main with PR #1171 to get it working with

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