A better firmware for usbserial on the ATmega 8U2/16U2

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1

Hi,

This is just an announce and/or a request for anyone who's interested in this to test...

Here's the link: GitHub - urjaman/fast-usbserial: ATMega16U2 firmare - faster than arduino-usbserial

It should be capable of 2Mbaud full-duplex and be otherwise compatible with eg. the firmware on the Arduino Uno R3's ATmega16U2. I havent tested on any 8U2 but it is small enough to fit.

(Just so if you didnt know: the normal firmware (Arduino-usbserial) isnt even capable of clean 115200 full duplex...)

I've posted about this on the Arduino developers group but that seems to be stuck in moderation queue, and anyways i'd like to let both users and them know, so this is the announce for users who are savvy enough to mess with the firmware on the *U2.

Sorry if wrong section, i couldnt really find one that was a better fit.

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Hi Urjaman,

I like to test your fast_serialport firmware. I have a problem now with the 230400 baud. When i use a FT232 instead of the onboard 16U2 on Arduino MEGA R3 it works fine. I never upgraded the 16U2 firmware. Can you give me a brief guidance to do.

Thanks in advance,

Guus van Dooren

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Does the DFU bootloader stay? Also, can fast-usbserial.hex just be uploaded with flip?