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Dell Venue 7 3740: How to get serial interface
After experimenting with Intel Edison board I decided to have a look at Dell Venue 7 3740 which is based on the same chip (but has higher frequency and bigger eMMC, including LTE modem, display, and audio). It can be found on the second hand market for something like 60€ + delivery (as of day of writing this blog post).
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HTTP-only accessible PDU (Power Delivery Units)
In our lab we are using a lot of different DUTs and most of them are connected via PDUs for the remote power cycle. The biggest part of PDUs are APC 7820B or similar (from APC). APC is controllable via SNMP and everything is so far, so good.
Couple of years ago I have got Keil Systems EnviroBot PDU (not produced anymore) from e-waste, which is 12 ( Read more... ) -
Turning Minnowboard (v1) to life on vanilla kernel
Intel Minnowboard (v1) was one of the first Intel's attempts to create an open hardware (okay, to some extent, if we take all possible blobs into consideration) platform based on Intel CPU or SoC (in this case it's an Intel Atom E600 series with EG20T PCH).
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It's hard to get an ACPI ID
Historically and due to lack of knowledge about process the ACPI IDs for some devices are abusing the specification. As of today the v6.4 of it [1] says in the chapter 6.1.5 "_HID (Hardware ID)":
A valid ACPI ID must be of the form “NNNN####” where N is an uppercase letter or a digit (‘0’-‘9’) and # is a hex digit. This specification reserves the ( Read more... ) -
Ampire AC162AY or what can go wrong?
I have spent some time to get the proper pin layout for the 16x2 LCD from Ampire (the model is AC162AY, or 162A-1-D Rev.B). The problem begins with the different polarity of the power rails. I thought if the polarity is wrong, what else can be wrong? That's how I started my search on Internet without any positive results - all of the layouts have a ( Read more... ) -
А нужен ли ЖЖ?
Настолько редко захожу в ЖЖ, да и почти перестал читать свои подписки...
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Что же дальше?
Решил набросать мысли, которые, возможно, могут ответить на вопрос "что же дальше?"
Успокоиться. Не должно быть никакой эйфории. Все материальные блага и документы должны быть описаны и сохранены.
xВласть. Януковича и прочих бывших при власти ни в коем случае не убивать. Должны быть процессы, показательные, но справедливые.
Тимошенко. Пусть ( Read more... ) -
К размышлению: хитрый Шустер
В передаче от 22.11.2013 первым выступал известный Н.Я. Азаров. На время его выступления убрали лого "поддержки студии" (около 100 человек, если не ошибаюсь, которые по выборке примерно соответствуют всей стране). Подали также кадр, где некоторые давят на пультах кнопку "поддерживаю". Очевидно, что сверху поступило указание. Правда и верхов ( Read more... ) -
Dreamwidth.Org
So, finally I've moved to dreamwidth.org. I set up crossposting, but I prefer to use Dreamwidth engine instead of LJ.
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