Bitcoin Forum
October 14, 2024, 12:10:22 PM
Welcome,
Guest
. Please
login
or
register
.
News
: Latest Bitcoin Core release:
28.0
[
Torrent
]
Home
Help
Search
Login
Register
More
Bitcoin Forum
>
Bitcoin
>
Mining
>
Hardware
>
How to test BM1385 chip?
Pages: [
1
]
« previous topic
next topic »
Print
Author
Topic: How to test BM1385 chip? (Read 1502 times)
Rekumkacz
(OP)
Newbie
Offline
Activity: 14
Merit: 8
How to test BM1385 chip?
July 15, 2016, 11:19:21 AM
#1
Hi
I have several damaged Boards from S7 after the warranty period.
I thought about building a tester for testing individual chips, voltage, protocol, UART, etc.
I read the documentation but not too much I learned
I measured the voltage that generates a DC-DC converter and is about 8V to the chain chips
Where to start?
It is now available schema for the board?
NotFuzzyWarm
Legendary
Offline
Activity: 3780
Merit: 2689
Evil beware: We have waffles!
Re: How to test BM1385 chip?
July 15, 2016, 01:26:58 PM
#2
Bitmain has never released schematics of their miners and most likely never will.
As for data on the chips themselves,
https://bitmaintech.com/files/download/BM1385_Datasheet_v2.0.pdf
- For bitcoin to succeed the community must police itself - My info useful? Donations welcome!
3NtFuzyWREGoDHWeMczeJzxFZpiLAFJXYr
-
Sole remaining active Primary developer of cgminer, Kano's repo is here
-Support Sidehacks miner development. Donations to:
1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
Unacceptable
Legendary
Offline
Activity: 2212
Merit: 1001
Re: How to test BM1385 chip?
July 15, 2016, 11:14:28 PM
#3
About the only person who could shed any light on this for you is sidehack.
Maybe he'll show up & share some info on whether what your asking is something you could do or not
"If you run into an asshole in the morning, you ran into an asshole. If you run into assholes all day long, you are the asshole." -Raylan Givens
Got GOXXED ??
https://www.youtube.com/watch?v=9KiqRpPiJAU&feature=youtu.be
"An ASIC being late is perfectly normal, predictable, and legal..."Hashfast & BFL slogan
sidehack
Legendary
Offline
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
Re: How to test BM1385 chip?
July 16, 2016, 05:43:02 AM
#4
I did work up a test Compac with BM1385 but could never get it to work. The friggin' 0.4mm pitch ASICs are a bear to work with, plus that they're impossible to reliably acquire thanks to the chipside heatsinks, got the whole project scrapped in prototype.
I haven't looked over an S7 board specifically for chip stuff in a while (been focused more on power) but I believe there are test pads between chips if you can get to them around the heatsinks. You could at least verify where signals are going.
If the DC-DC is at about 8V, there's something wrong. It should start out around 9.3V and if you provide 3.3V to the 3.3V pin on the 18-pin header (or just plug the cable into a powered controller board) you should see that jump to 10.2V or so unless there's something very wrong with the PIC/DPOT parts of the power circuit. There's already a couple threads on that subject though.
Cool, quiet and up to 1TH pod miner, on sale now!
Currently in development -
200+GH USB stick; 6TH volt-adjustable S1/3/5 upgrade kit
Server PSU interface boards and cables. USB and small-scale miners. Hardware hosting, advice and odd-jobs.
Supporting the home miner community since 2013 -
http://www.gekkoscience.com
Rekumkacz
(OP)
Newbie
Offline
Activity: 14
Merit: 8
Re: How to test BM1385 chip?
July 16, 2016, 11:33:30 AM
#5
I made some steps and measured the voltage on the individual chips .
https://i.imgur.com/WZjjpi9.jpg
After connecting 3.3v voltage jumped from 8.32V to 10.56V .
It comes out that three chips are connected in series, then fifteen groups are connected in parallel
sidehack
Legendary
Offline
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
Re: How to test BM1385 chip?
July 16, 2016, 02:18:14 PM
#6
That's about exactly what you should be seeing, so it means the power circuit is functional. Next thing would be to poke reset, TX, RX and clock lines at the 18-pin and see if those signals make it all the way to the last chip in the chain. This should be done while the board is powered up, of course.
Cool, quiet and up to 1TH pod miner, on sale now!
Currently in development -
200+GH USB stick; 6TH volt-adjustable S1/3/5 upgrade kit
Server PSU interface boards and cables. USB and small-scale miners. Hardware hosting, advice and odd-jobs.
Supporting the home miner community since 2013 -
http://www.gekkoscience.com
Rekumkacz
(OP)
Newbie
Offline
Activity: 14
Merit: 8
Re: How to test BM1385 chip?
July 16, 2016, 02:47:07 PM
#7
I understand now that I connect the USB to UART and see what appears on the terminal ?
The control board detect the only one chip.
which chip is first and which is last in the chain?
sidehack
Legendary
Offline
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
Re: How to test BM1385 chip?
July 16, 2016, 03:08:18 PM
#8
Where'd a USB to UART enter the picture?
Signals in Antminers go uphill, so the first chip would be on the lowest-volt node and the last is at the highest. I'm not sure offhand where those are but it shouldn't be too hard to tell.
Cool, quiet and up to 1TH pod miner, on sale now!
Currently in development -
200+GH USB stick; 6TH volt-adjustable S1/3/5 upgrade kit
Server PSU interface boards and cables. USB and small-scale miners. Hardware hosting, advice and odd-jobs.
Supporting the home miner community since 2013 -
http://www.gekkoscience.com
Rekumkacz
(OP)
Newbie
Offline
Activity: 14
Merit: 8
⇾
Re: How to test BM1385 chip?
July 16, 2016, 04:19:23 PM
#9
I have a FT232 USB to uart converter and i will use to connect to the 18 pin header
Pages: [
1
]
Print
Bitcoin Forum
>
Bitcoin
>
Mining
>
Hardware
>
How to test BM1385 chip?
« previous topic
next topic »
Jump to:
Please select a destination:
-----------------------------
Bitcoin
-----------------------------
=> Bitcoin Discussion
===> Legal
===> Press
===> Meetups
===> Important Announcements
=> Development & Technical Discussion
===> Wallet software
=====> Electrum
=====> Bitcoin Wallet for Android
=====> BitcoinJ
=====> Armory
=====> Mycelium
=====> Hardware wallets
=> Mining
===> Mining support
===> Pools
===> Mining software (miners)
===> Hardware
=====> Group buys
===> Mining speculation
=> Bitcoin Technical Support
=> Project Development
-----------------------------
Economy
-----------------------------
=> Economics
===> Speculation
=> Marketplace
===> Goods
=====> Computer hardware
=====> Digital goods
=======> Invites & Accounts
=====> Collectibles
===> Services
===> Currency exchange
===> Gambling
=====> Games and rounds
=====> Investor-based games
=====> Gambling discussion
===> Lending
=====> Long-term offers
===> Securities
===> Auctions
===> Service Announcements
=====> Micro Earnings
===> Service Discussion
=====> Web Wallets
=====> Exchanges
=> Trading Discussion
===> Scam Accusations
===> Reputation
-----------------------------
Other
-----------------------------
=> Meta
===> New forum software
===> Bitcoin Wiki
=> Politics & Society
=> Beginners & Help
=> Off-topic
=> Serious discussion
===> Ivory Tower
=> Archival
===> Корзина
===> CPU/GPU Bitcoin mining hardware
===> Chinese students
===> Obsolete (buying)
===> Obsolete (selling)
===> MultiBit
-----------------------------
Alternate cryptocurrencies
-----------------------------
=> Altcoin Discussion
=> Announcements (Altcoins)
===> Tokens (Altcoins)
=> Mining (Altcoins)
===> Pools (Altcoins)
=> Marketplace (Altcoins)
===> Service Announcements (Altcoins)
===> Service Discussion (Altcoins)
===> Bounties (Altcoins)
=> Speculation (Altcoins)
-----------------------------
Local
-----------------------------
=> العربية (Arabic)
===> العملات البديلة (Altcoins)
=====> النقاشات
===> إستفسارات و أسئلة المبتدئين
===> التعدين
===> النقاشات الأخرى
===> منصات التبادل
=> Bahasa Indonesia (Indonesian)
===> Marketplace (Bahasa Indonesia)
===> Mining (Bahasa Indonesia)
===> Altcoins (Bahasa Indonesia)
===> Trading dan Spekulasi
===> Ekonomi, Politik, dan Budaya
===> Topik Lainnya
=> Español (Spanish)
===> Mercado y Economía
=====> Servicios
=====> Trading y especulación
===> Hardware y Minería
===> Esquina Libre
===> Mercadillo
=====> Mexico
=====> Argentina
=====> España
=====> Centroamerica y Caribe
===> Primeros pasos y ayuda
===> Altcoins (criptomonedas alternativas)
=====> Minería de altcoins
=====> Servicios
=====> Tokens (Español)
=> 中文 (Chinese)
===> 跳蚤市场
===> 山寨币
===> 媒体
===> 挖矿
===> 离题万里
=> Hrvatski (Croatian)
===> Trgovina
===> Altcoins (Hrvatski)
=====> Announcements (Hrvatski)
===> Off-topic (Hrvatski)
=> Deutsch (German)
===> Anfänger und Hilfe
===> Mining (Deutsch)
===> Trading und Spekulation
===> Projektentwicklung
===> Off-Topic (Deutsch)
===> Treffen
===> Presse
===> Altcoins (Deutsch)
=====> Announcements (Deutsch)
===> Marktplatz
=====> Auktionen
=====> Suche
=====> Biete
=> Ελληνικά (Greek)
===> Αγορά
===> Mining Discussion (Ελληνικά)
===> Altcoins (Ελληνικά)
=====> Altcoin Announcements (Ελληνικά)
=====> Altcoin Mining (Ελληνικά)
=> עברית (Hebrew)
=> Français
===> Actualité et News
===> Débutants
===> Discussions générales et utilisation du Bitcoin
===> Mining et Hardware
===> Économie et spéculation
===> Place de marché
=====> Échanges
=====> Produits et services
=====> Petites annonces
===> Le Bitcoin et la loi
===> Wiki, documentation et traduction
===> Développement et technique
===> Vos sites et projets
===> Hors-sujet
===> Altcoins (Français)
=====> Annonces
=> India
===> Mining (India)
===> Marketplace (India)
===> Regional Languages (India)
===> Press & News from India
===> Alt Coins (India)
===> Buyer/ Seller Reputations (India)
===> Off-Topic (India)
=> Italiano (Italian)
===> Guide (Italiano)
===> Progetti
===> Discussioni avanzate e sviluppo
===> Trading, analisi e speculazione
===> Mercato
=====> Mercato valute
=====> Beni
=====> Servizi
=====> Esercizi commerciali
=====> Hardware/Mining (Italiano)
=====> Gambling (Italiano)
===> Accuse scam/truffe
===> Mining (Italiano)
===> Alt-Currencies (Italiano)
=====> Annunci
===> Raduni/Meeting (Italiano)
===> Crittografia e decentralizzazione
===> Off-Topic (Italiano)
=> 日本語 (Japanese)
===> アルトコイン
=> Nederlands (Dutch)
===> Markt
===> Gokken/lotterijen
===> Mining (Nederlands)
===> Beurzen
===> Alt Coins (Nederlands)
===> Off-topic (Nederlands)
===> Meetings (Nederlands)
=> Nigeria (Naija)
===> Politics and society (Naija)
===> Off-topic (Naija)
=> 한국어 (Korean)
===> 대체코인 Alt Coins (한국어)
=> Pilipinas
===> Altcoins (Pilipinas)
=====> Altcoin Announcements (Pilipinas)
===> Pamilihan
===> Others (Pilipinas)
=> Polski
===> Tablica ogłoszeń
===> Alternatywne kryptowaluty
=====> Nowe kryptowaluty i tokeny
=====> Tablica ogłoszeń (altcoiny)
=> Português (Portuguese)
===> Primeiros Passos (Iniciantes)
===> Economia & Mercado
===> Mineração em Geral
===> Desenvolvimento & Discussões Técnicas
===> Criptomoedas Alternativas
===> Brasil
===> Portugal
=> Русский (Russian)
===> Новички
===> Бизнес
=====> Барахолка
=====> Обменники
===> Идеи
===> Кодеры
===> Майнеры
===> Политика
===> Трейдеры
===> Альтернативные криптовалюты
=====> Токены
=====> Бayнти и aиpдpoпы
===> Хайпы
===> Работа
===> Разное
===> Oбcyждeниe Bitcoin
=====> Новости
=====> Юристы
=> Română (Romanian)
===> Anunturi importante
===> Offtopic
===> Market
=====> Discutii Servicii
===> Minerit
===> Tutoriale
===> Bine ai venit!
===> Presa
===> Altcoins (Monede Alternative)
=====> Anunturi Monede Alternative
=> Skandinavisk
=> Türkçe (Turkish)
===> Bitcoin Haberleri
===> Pazar Alanı
===> Madencilik
===> Ekonomi
===> Servisler
=====> Fonlar
===> Proje Geliştirme
===> Alternatif Kripto-Paralar
=====> Madencilik (Alternatif Kripto-Paralar)
=====> Duyurular (Alternatif Kripto-Paralar)
===> Konu Dışı
===> Yeni Başlayanlar & Yardım
===> Buluşmalar
=> Other languages/locations
Loading...