Since 4/25/2012 9:10:30 PM, mborgerson has written 8 articles and participated in 478 conversations. mborgerson signature: mborgerson
Puzzling power results STM32F4 FPU test1749 (1/5/2013 5:59:47 PM) comp.arch.embedded
In a recent thread Jon Kirwan and I were discussing FPUs and power
consumption. I decided to try some real world tests on an
STM32F4 Discovery board. After a few tests in the ChiBios
RTOS, where I discov... Mark
Micro SD power consumption354 (5/23/2009 4:03:11 PM) comp.arch.embedded I'm working on a low-power logger to continuously log data at fairly low rates (2-3KB/s) for months. I've successfully used SD and SD micro cards at lower rates, but I'm seeing a power dissipation problem with... Mark
FTDI FT245R power requirement555 (1/12/2009 4:07:28 PM) comp.arch.embedded I've used the FT245R for USB data upload in a number of data logger designs. I have generally used the logger 3.3V supply to power the chips. However, I just ran across the following note in the most recen... Mark
Those French---Behind the Power Curve Again277 (12/19/2008 5:46:51 PM) comp.arch.embedded I received the following note in an email newsletter: "synchronous design startup readies ultra-low power 16-bit MCU On the eve of the IP'2008 conference this week in Grenoble, Tiempo AS, French startup speci... Mark
SanDisk Ultra II SD plus USB153 (12/1/2007 12:28:27 AM) comp.arch.embedded I just bought a SanDisk 1GB Ultra II SD + USB at Staples for about $27. I have several projects that use SD cards in SPI mode for data storage. This SD card seems to work fine after a limited amount of test... Mark
AT91SAM7 samples163 (4/25/2005 4:43:23 PM) comp.arch.embedded Hi, Does anyone know of a source for samples of any of the chips in the AT91SAM7 line? My standard net searches show only the dev kits at $250. I don't really want another dev kit, since I already have the ... Mark
Really tiny microcontrollers5052 (2/25/2013 8:47:20 AM) comp.arch.embedded I'm wondering what the physically smallest microcontrollers are, that
aren't too crazy to program and that are amenable to hand soldering with
normal SMT tools. I've found some of the ATtiny parts in 2x2mm
LPC1788 versus LPC2478323 (2/26/2013 2:44:12 PM) comp.arch.embedded Hi,
I have a project running on a LPC2478 with a QVGA LCD, similar to the Olimex
LPC2478-STK (a subset ). It runs at 72MHz.
The size of my code is approaching the 500k limit, so I have tried to cross
Working principle of a Desktop environment825 (3/6/2013 5:28:00 AM) comp.arch.embedded Hi guys
You guys have been always a great help to me.
Today I am posting or you can say asking something very unusual.
till now you guys have met people asking that questions about Linux and
it's deve... piyushpandey
STM32F2 series users group1643 (3/11/2013 3:02:02 PM) comp.arch.embedded
Can anyone point me in the direction of a suitable user's group?
I'm currently battling with a STM32F205 and come across a couple of snags!!
Video Solutions Ltd
OT: Recommend a decent news reader?2533 (4/7/2013 12:01:21 AM) comp.arch.embedded Outlook Express used to be ok if you had the OE patch fix for
top-posting, bottom-feeding or whatever they called it, but it seems to
have gone the way of much half-decent software. I could editorialize on... nrm1(6)
Power Gating Devices728 (5/3/2013 7:29:16 PM) comp.arch.embedded I've been toying around with the idea of using transistors to power gate devices, an SD card for example. Is there any proper practices when doing this and/or anything to be concerned about?
Routing signals under crystals2412 (8/22/2013 5:33:53 PM) comp.arch.embedded Hello,
We got a product that uses a low power RTC crystal and a 12Mhz crystal on a=
4 layer board. The inner layers are VCC and GND. Should I remove the VCC o=
r/and GND under any of both crystals? Would ... luisf.rossi(3)
Robust user interface requirement155 (11/17/2013 12:04:51 PM) comp.arch.embedded I have a UI requirement that's slightly unusual. Ideally it would be a touch
screen, but it will be 'touched' / poked in a big hurry, and maybe in a
that would damage a normal screen at times. It's a... bv2144(57)