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Discussion Groups
USB
Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.
We found 1374 threads matching "usb"
You are looking at page 1 of 35.
The most relevant threads are listed first
Re: Mini USB cable with all 5 pins + shield = 6 wires?
Don McKenzie - 16:58 23-07-08
cs_posting@hotmail.com wrote:
> Due to a PCB "oops" in an embedded project, I'm wondering if anyone
> knows where to buy mini-usb cables with all 5 pins plus the connector
> shield wired through.
>
> I saw some indication that a motorola bar code scanner might have used
> the connector ...
Re: Cheapest USB microcontroller?
Neil - 00:38 23-07-08
Bob wrote:
> Does anyone know the lowest cost microcontroller with a USB interface?
>
> I have done some Googling, and it seems there are quite a few USB
> microcontrollers based on either ARM or 8051. Either is okay, but
> they are not very cheap. They are all over $3 @ qty 1000.
>
...Virtualizing QNX 6.0
Jack Klein - 23:07 22-07-08
I'm looking for any suggestions, and especially any real experiences,
that anyone cares to offer.
We have a system that includes an x86 box running QNX 6.something. It
has the following interfaces:
-- network card for product specific data acquisition, 100 base T or
faster
-- network ca...USB2.0 Flash Controller for Microcontroller project
2bluesc - 08:36 22-07-08
I'm building a data logger with a microcontroller and logging to a microSD
card over time and then want to be able to copy it off fast over USB with a
USB 2.0 Flash controller like those found in PC flash card readers. I
stumbled across this webpage @
http://www.hjreggel.net/cardspeed/info-controll...Re: computer-driven fans
Ron Ford - 21:40 21-07-08
On Mon, 21 Jul 2008 10:40:51 +0200, Frank Buss posted:
> Ron Ford wrote:
>
> > My question is what is the minumum cost of entry? I saw other numbers that
> > were ten times as much.
>
> I didn't tried it (I have some AVRs, but no time so far to try it), but
> looks like this is a ...Re: GPS receiver question
rickman - 10:32 21-07-08
On Jul 21, 2:43 am, vorange wrote:
> I'm looking for an easy to use/integrate gps receiver.
>
> I've come across tyco's products.
>
> Is one of these babies all I would need or is there some 'antenna' or
> other stuff required that's not shown in the picture?
>
> I plan to hook it...Re: Micro-SD card initialisation-problem
R.Wieser - 03:45 19-07-08
Hello Don,
> I don't know if you are doing this to interface to an
> embedded system or not,
In that case I can use my 36-in-1 card-reading/writing USB-stick. :-)
But yes, the idea is to hook it up to an Atmel so I can retrieve, from the
card, some voice-files (adpcm, pre-loaded onto it...Re: USB host + FAT32 filesystem
Not Really Me - 12:08 18-07-08
wrote in message
news:2881d670-497e-4593-a971-4cd067faae70@q24g2000prf.googlegroups.com...
> Hi,
>
> I'm gonna purchase the following embedded libraries:
>
> USB Host + Mass Storage Class driver + FAT32 filesystem
>
> Among many, I'm focusing my attention on (alphabetical order)...Re: Multiple USB 1.1 devices in USB 2 Hub speed ?
lowcost - 08:59 17-07-08
Anton Erasmus ha scritto:
> If I have a number of USB 1.1 devices plugged into a USB 2 Hub, can I
> get the full 12MB/s of each USB 1.1 device via the USB 2 link to a
> host ?
yes, if the hub is " _multiple_ Transaction Translator"
> Or does the USB 2 link fall back to a 1.1 compatibl...Re: Low cost solution to program Spartan 3AN DSP development board AES-SPEEDWAY-S3ADSP-SK Opzioni
MikeWhy - 15:55 16-07-08
"Etantonio" wrote in message
news:5f0f995f-81e1-49e0-b9f0-996d85cd6a64@l42g2000hsc.googlegroups.com...
> I'm in trouble,
> do you think that could be possible to program the FPGA from ethernet
> for this board ?
Not directly. Some combination of one of the many mpu's with embedded
et...Good hobbyist VGA camera module?
larwe - 15:44 16-07-08
Can someone suggest a reasonably-priced monochrome camera module (I
can live with color but don't need it), VGA-resolution camera module
with some kind of buffer and low-speed interface; SPI, I2C, RS232,
etc. SPI would be my preference.
I need two of them, and perhaps two spares, to build a de...Re: Help corrupted Usb file tranfer to embedded device????
Mark McDougall - 21:24 13-07-08
slxrti@yahoo.com wrote:
> The transfer type is bulk and take can take several seconds. The
> device receiving requires a un interrupted download.
What do you mean by "uninterrupted"? Bandwidth for bulk transfers is
allocated on an "as available" basis by the USB host controller. You have ...MAX3421EUSB Peripheral enumerates as low speed
Bill Davy - 11:24 13-07-08
Good afternoon.
I am trying to get a MAX3421E running as a peripheral and it keeps coming up
in low-speed. I cannot see any bits I can use to change this. The device
appears to work. It is a call to WinUsb_QueryDeviceInformation(usbHandle,
DEVICE_SPEED, &length, &speed) which returns...Re: About GSM project
Scott in SoCal - 14:39 12-07-08
In message
,
haresh wrote:
> My Last post many friends have problem abt my university. I join this
> group for help. If i said any thing wrong then sorry.
> Right I am working project which is using 8051 to connect GSM modem
> And GPS receiver .Its for tracking vehicle and send MSG on...CMOS Image Sensor FPGA USB - Is CY7C68013 good?
kicn - 16:07 11-07-08
Hi, I interfaced a Micron MT9T001 with Spartan3 evaluation board, I can
save a fragment of image on SRAM, and now deciding which USB controller to
use so that I can transfer the raw image data to PC directly from the
sensor.
The bandwidth for the output data needs 30MB/s (640*480*98fps).
I used ...Re: Low cost solution to program Spartan 3AN DSP development board AES-SPEEDWAY-S3ADSP-SK Opzioni
Antti - 05:45 11-07-08
On 11 juuli, 12:07, Etantonio wrote:
> I'm trying to renew my experience on fpga so last week I buy a
> Spartan 3AN DSP development board
> AES-SPEEDWAY-S3ADSP-SK from Silica for about 235euro.
> But I've not the cable to program it, so I ask to Silica that suggest
> me thehttp://www.xi...Re: Embedded processor selection for long-life product
tns1 - 15:53 06-07-08
Jim Granville wrote:
> tns1 wrote:
> > I am faced with selecting a replacement processor/uC for a re-design
> > of some industrial controller/safety equipment. The technical
> > requirements can be satisfied by just about any 32bit risc style
> > uP/uC, but one key requirement is that s...I'm a bit lost on WinAVR (make problem?)
Martin Griffith - 07:21 05-07-08
I've only been playing with WinAVR for a few days with this little
project
http://www.obdev.at/products/avrusb/hidkeys.html
(the source code is there as well)
I'm using their makefile.
The problem is when I try to modify a line in usbdrv.h in PN2 , I'm
only trying to change the port pin wh...Re: Laptop for engineering without OS
larwe - 18:45 04-07-08
On Jul 4, 3:08=A0pm, rickman wrote:
> I would consider used equipment, but I want something that will last
> as my needs for processor speed and especially memory grow. =A01 GB is
But there is no machine that will meet that requirement indefinitely.
If your needs are so gargantuan (I sh...USB short packets and physical data packet length
20:50 03-07-08
On the USB physical bus, are endpoint data packets always exactly
wMaxPacketSize in length and zero padded when the requested data
size is smaller than wMaxPacketSize or are the data packets physically
the size of the requested data size? I can't seem to find how
zero length and short pack...Re: Faster than TI C2000?
Chris Carlen - 13:44 03-07-08
Jim Granville wrote:
> CC wrote:
>
> > At present I am generating 1us resolution arbitrary pulse sequences
> > using compare matches. There must be no jitter so HW compare match to
> > generate the edges is essential. I might need to make a waveform like:
> >
> > START
> > delay...SMSC USB3311 manual
Dennis - 21:11 01-07-08
Hi, does anyone have the programming manual for the SMSC USB3311
transceiver chip? The only thing I can find on the web is the Data
Brief which does not show the register set of this device.
Thanks
...Best buy linux comp. CPU ??
MMJ - 04:00 01-07-08
Hello all,
I am doing some preliminariy research on finding a suitable embedded CPU for
our next project on my workplace. The product of the product is in the
25k-50k range and somewhat costsensitive. What we are looking for is an
embedded CPU bassed on a semi-standard core (ARM, MIPS,PPC.....config for USB peripheral mode device
Dennis - 23:44 30-06-08
I am running 2.6.18 on a ARM board and I have a USB OTG device that I
only need to run as a USB peripheral, not as a host USB device.
I am having some problem getting it to work. Can someone see my config
if it looks OK?
Also I need to run usbnet on my FC5 laptop. I did a modprobe usbnet
an...Re: IDE 'emulator' with Ethernet or USB <8fcbdd25-1354-47d4-ad46-b4591eb436a0@d77g2000hsb.googlegroups.com>
AZ Nomad - 21:19 30-06-08
On Mon, 30 Jun 2008 18:36:48 -0700, donald wrote:
> StanV wrote:
> > Maybe off-topic but maybe someone can point me in the right direction.
> >
> > I'm need to transfer on regulary files to a legacy DOS application
> > (actualy a WIN98 in DOS mode).
> If you are using WIN98se, you c...IDE 'emulator' with Ethernet or USB
StanV - 18:02 30-06-08
Maybe off-topic but maybe someone can point me in the right direction.
I'm need to transfer on regulary files to a legacy DOS application
(actualy a WIN98 in DOS mode). At the moment the only solution i see
to transfer the files by floppy between the systems.
So i"m wondering if there exists...Re: NAND flash misery
Stefan Reuther - 17:18 29-06-08
Vladimir Vassilevsky wrote:
> "David Brown" wrote in message
> > CF cards and other earlier flash devices are not that great at wear
> > levelling and bad block handling (that's one of the reasons for
> > flash-specific file systems like YAFS and JFFS2).
>
> The actual erase block size ...Developing Application software for a USB host
faiyaz - 04:33 28-06-08
Hello all again,
Let me tell you in brief about this.
We are developing a USB device(having AT91SAM7) which has a control and
two Isochronous endpoints(1 for IN & 1 for OUT) and a bulk endpoint. The
device is a custom type device. It sends and receives packets on
Isochronou...Re: a PC Based Oscilloscope?
Klaus Kragelund - 06:57 23-06-08
On 21 Jun., 20:11, n...@puntnl.niks (Nico Coesel) wrote:
> "Talal Itani" wrote:
> > Hello,
>
> > My company wants to buy an oscilloscope. =A0The scope that meets our need=
s is
> > around $7,000. =A0I am sure we can save much money if we buy a PC-based u=
nit,
> > like Picoscope. =A...Re: How workable is Vista?
Jonathan Kirwan - 15:18 21-06-08
On Sat, 21 Jun 2008 17:07:05 +0000, Guy Macon
wrote:
> Jonathan Kirwan wrote:
>
> > > Oh, well. You almost made me happy. :)
> >
> > Or, perhaps, I should say "maybe." I'm honestly not sure I understood
> > your explanation.
> >
> > I need rackable disks. Yes, I can hook up two ...Re: How workable is Vista?
Guy Macon - 13:07 21-06-08
Jonathan Kirwan wrote:
> > Oh, well. You almost made me happy. :)
>
> Or, perhaps, I should say "maybe." I'm honestly not sure I understood
> your explanation.
>
> I need rackable disks. Yes, I can hook up two on the machine at once,
> so I can handle performing a copy from one ...a race car system development
saurabhneo23 - 09:26 18-06-08
Our team is developing some electronic systems for a FORMULA STUDENT CAR
competition held by SAE,the systems are:
1.Data aquisition system using CAN protocol and logging into USB
2.Automatic gear shifting system
3.Telemetry system
4.Eletronic control unit for engine(purchased it!! so not a part ...Re: How workable is Vista?
Jack - 03:36 17-06-08
On Jun 17, 10:06 am, Clifford Heath wrote:
> rickman wrote:
> > Will the Mac run PC software like Linux does using something like WINE?
>
> Perfectly well using either Parallels or VMWare.
> You still need a Windows license, of course.
Hi,
by chance have you tried the Codewarrior...Re: Sample DOSFS disk image file for testing
robertwessel2@yahoo.com - 21:37 16-06-08
On Jun 16, 6:25=A0pm, "John Speth" wrote:
> Hi Everybody-
>
> I downloaded and built Lewin Edwards' DOSFS package. =A0It builds without =
a
> flaw. =A0I would love to get up and running quickly for desktop testing bu=
t
> the disk image file is missing from the package and that requir...PXA270 USB host port 2
ghiggia - 08:42 16-06-08
I have a custom board with pxa270 with a linux 2.6.18 kernel. USB host
port 1 works correctly,
then I want to use USB host port 2. I configured UHCHR and UP2OCR as
follows, but port 2 don't work.
UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE
|
UP2OCR_CPVEN | UP2...developing Application software for a host to communicate with a USB device
faiyaz - 15:04 14-06-08
Dear members,
I am developing an Application software in VC++ for a host
CPU to communicate with a device on USB. I have seen use of Createfile,
Writefile, & Readfile functions to communicate with the USB peripheral. My
question is How do we send IN or OUT token packets or SOF pack...Access Control Systems from Cansec
Jack - 01:28 14-06-08
Financial Access Controls
Are your daily business operations protecting you against fraud, theft
and unfavorable audits? ExpenseWatch offers online solutions for your
business' financial controls.
http://a.uuload.com/Access-Control.htm
Cut Security Costs - Access Control
Why pay more, when y...Re: Flash retention in uC at higher temps, experience?
Joerg - 19:58 13-06-08
Tim Wescott wrote:
> Joerg wrote:
> > Tim Wescott wrote:
> > > Joerg wrote:
> > > > Hello All,
> > > >
> > > > After some problems a client saw I was treated to my own dose of
> > > > what is likely flash loss: The uC in our mailbox door has become
> > > > erratic. I installed it a...Please suggest USB to RS232 adapter that works 100%
=?ISO-8859-1?Q?Tom=E1s_=D3_h=C9ilidhe?= - 20:39 12-06-08
I've purchased one already made by "Cypress Semiconductor" but it
doesn't work. The VID is 04b4 and the PID is 5500.
Can anyone suggest a USB to RS232 adapter that does its job perfectly
100% of the time under Microsoft Windows, i.e. it trully behaves
exactly just like any other serial port?...Re: Commercial Embedded Linux Vendors
The Real Andy - 04:46 12-06-08
On Wed, 11 Jun 2008 18:11:55 -0700 (PDT), "EventHelix.com"
wrote:
> On Jun 11, 6:35 am, The Real Andy wrote:
> > I am trying hard to avoid embedded stuff these days, but potential
> > contract has come my way recently that needs some embeeded stuff. So
> > whilst I am nutting out req...