Olá,
Recentemente meu Arduino parou de ser reconhecido pelo computador. Realizei diversos testes:
– Troquei o Atmega328
– Regravei a bootloader
– Testei o controlador fora da placa
– Medi com o multimetro as conexões básicas para ver se fechava o circuito
Nada disso solucionou o problema e então decidi tentar programar o atmega8u2 que é responsável por controlar a conexão com a USB. Encontrei dois artigos principais os quais usei como base:
Atualizando o Atmega8U2 no Uno ou no Mega2560 usando DFU (Ingles) e também Como atualizar o firmware do atmega8u2 Updating the Atmega8U2 on an Uno or Mega2560 using DFU
Ambos utilizavam de soluções que era necessário soldar um resistor na placa, o que eu não queria fazer, então verifiquei que próximo ao atmega8u2 existem pinos de ICSP e imaginei que os mesmos servem para programar o atmega8u2. Decidi tentar, por garantia removi meu Atmega328 da placa. E conectei meu USB Asp seguindo os pinos da imagem, lembrando que o pino 1 possui uma marcação próxima no meu Arduino UNO uma pequena bolinha.
Após a conexão acessei o diretório que continha os hex do atmega8u2 do arduino Uno (/arduino/hardware/arduino/firmware/) e usei o comando:
sudo avrdude -c usbasp -p m8 -u -U flash:w:UNO-dfu_and_usbserial_combined.hex
O mesmo não aceitou dizendo que o identificador de ambos eram diferentes:
avrdude: Yikes! Invalid device signature.
voltei a pesquisar e descobri que o at90usb162 é compativel, então decidi arriscar e forçar a escrita com a opção
sudo avrdude -c usbasp -p usb162 -u -U flash:w:UNO-dfu_and_usbserial_combined.hex -F
Esperei gravar, desliguei o arduino, conectei meu atmega328 e a conexão USB voltou a aparecer no computador, tornando assim possivel eu utilizar meu Arduino pela USB novamente.
Matheus
PS: Logo após regravar a bootloader meu atmega328 não sincronizava com a USB, então escrevi a bootloader do atmega328 pro arduino uno novamente e tudo funcionou perfeitamente.
Referencias:
http://8515.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=688637
http://image.pinout.net/pinout_10_pin_files/connector_pinout.php?image=avr_icsp.png&pinout=%20This%20a%20pinout%20of%20the%20AVR%20ICSP%20header.%20(6-pin%20&%2010-pin)
My partner and I absolutely love your blog and find nearly all of your post’s to be what precisely I’m looking for. Do you offer guest writers to write content for you? I wouldn’t mind creating a post or elaborating on a few of the subjects you write concerning here. Again, awesome web log!
Помощь нарколога на дому в Мурманске обладает рядом неоспоримых преимуществ, которые делают данный метод лечения особенно актуальным:
Исследовать вопрос подробнее – [url=https://vyvod-iz-zapoya-murmansk0.ru/]vyvod-iz-zapoya-klinika murmansk[/url]
Процесс вывода из запоя капельничным методом организован по строгой схеме, позволяющей обеспечить максимальную эффективность терапии. Каждая стадия направлена на комплексное восстановление организма и минимизацию риска осложнений.
Изучить вопрос глубже – [url=https://kapelnica-ot-zapoya-tyumen0.ru/]после капельницы от запоя тюмень[/url]
I am extremely impressed along with your writing skills and also with the format for your blog.
Is this a paid topic or did you modify it your self? Anyway keep
up the nice high quality writing, it is uncommon to see
a great weblog like this one today..
Its like you read my mind! You seem to know so much approximately this, such as you wrote the ebook in it or something. I feel that you could do with some percent to pressure the message home a bit, but other than that, that is excellent blog. A fantastic read. I’ll certainly be back.
Работа клиники строится на принципах доказательной медицины и индивидуального подхода. При поступлении пациента осуществляется всесторонняя диагностика, включающая анализы крови, оценку психического состояния и анамнез. По результатам разрабатывается персонализированный курс терапии.
Подробнее можно узнать тут – [url=https://narkologicheskaya-klinika-v-ryazani12.ru/]chastnaya narkologicheskaya klinika rjazan'[/url]
Hi there, You have done a fantastic job. I?ll certainly digg it and in my view suggest to my friends. I’m confident they will be benefited from this website.
It’s like you wrote the book on it or something. Nice read. This information is magnificent. Good job on this article! The people at bitget exchange are a fake website. Interesting content. I have been looking everywhere for this! I really like your article. I enjoyed your post. Thank you. Great post! This is an excellent, an eye-opener for sure! I wished you were close so we could be friends. I’ve truly enjoyed browsing this site posts. Great read. Thumbs up! Thumbs up! I have truly enjoyed reading your website posts.
Быстрая профессиональная монтаж видеонаблюдения для квартир, домов, офисов и коммерческих объектов. Проектирование, монтаж и настройка систем безопасности, удалённый доступ, запись видео и контроль в реальном времени. Надёжные решения для защиты имущества и контроля территории.
Лучший выбор дня: https://l-parfum.ru/catalog/paco-rabanne/olympea/
Самое интересное: https://krasa-market.ru/
Обязательно к прочтению: https://1citywomen.ru/
I used to be very happy to find this web-site.I wanted to thanks to your time for this excellent read!! I positively enjoying each little little bit of it and I’ve you bookmarked to check out new stuff you weblog post.
Услуги грузчиков https://www.gruzchiki-kiev.net в Киеве для переездов, разгрузки транспорта, подъема мебели и строительных материалов. Профессиональные рабочие выполняют погрузочно-разгрузочные работы любой сложности, гарантируя аккуратное обращение с имуществом и оперативное выполнение заказа.
Сервис оценки недвижимости https://shalmach.pro помогает быстро узнать примерную стоимость объекта, возможные риски и рекомендации перед сделкой. Анализируйте состояние жилья, бюджет покупки и сценарии дальнейших действий до подписания договора.
Heyy There. I found yoyr bblog tthe udage oof msn. That is a reallpy
smaftly wrijtten article. I’ll bee sjre to bookmark iit aand return too readd extra oof your
helpfyl information. Thak yyou foor tthe post. I wikl definitely comeback.
my web-site; roloxxx.com (Fannie)
Yes! Finally soimeone writews about .
Feel free too urf tto my web-site txxxvideos.com
Great article.
Heree iis myy blog post: xxx
микрозайм оформить https://rusel-garant.ru
hey there and thanks to your info ? I have definitely picked up something new from proper here. I did alternatively expertise a few technical issues the use of this site, since I skilled to reload the site many times previous to I could get it to load properly. I were wondering if your hosting is OK? Now not that I am complaining, but sluggish loading circumstances times will very frequently affect your placement in google and could damage your quality score if ads and ***********|advertising|advertising|advertising and *********** with Adwords. Anyway I?m including this RSS to my e-mail and can glance out for much extra of your respective intriguing content. Ensure that you replace this once more very soon..