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I2C
Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.
We found 529 threads matching "i2c"
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The most relevant threads are listed first
NXP give price points for their M0 LPC1xxx variants
-jg - 2009-11-17 01:58:00
NXP Cortex M0 cores - an opcode-pruned subset of M3.
Needs custom tool flows.
http://www.nxp.com/news/content/file_1642.html
8KF/2KR 33pins : LPC1111FHN33/101 US$0.65/10K
16KF/2KR 33pins : LPC1112FHN33/101 $0.75
24KF/4KR 33pins : LPC1113FHN33/201 $0.85
32KF/4KR 33pins : LPC1114FHN33/...
looking for driver, usb-chipcard-reader to arm linux system
=?ISO-8859-15?Q?Stefan_Brr=F6ring?= - 2009-11-09 11:13:00
Hello,
i am looking for a driver to read chipcards via USB-reader.
Has anybody an idea, where i can find information about how to read and
write I2C Memory cards, 24C16 or similar?
best regards
Stefan DF9BI
...Re: FPGA Soft Core CPUs
Mark McDougall - 2009-11-06 01:36:00
Jack Klein wrote:
> So third, I'd be grateful for any experiences with either soft core,
> or even better both, with a comparison between the two.
Do you already have an FPGA on the board? If not, I think you'd be bloody
crazy to go soft-core. Your EE's just want new toys to play with if
...Looking for Full time position in Embedded Systems
Nripendra Singh - 2009-10-28 12:12:00
Hi,
I have completed Masters in Electrical Engineering from University of
North Carolina at Charlotte and currently I am looking for full time
position in the field of Embedded Systems and software Development.
I have an in-depth knowledge of C/C++, MATLAB and Core JAVA. During my
masters pro...Re: First step into Secure Embedded system
Paul Carpenter - 2009-10-22 08:44:00
In article , ajay.bgr@gmail.com says...
> On Oct 22, 11:08 am, Thad Smith wrote:
>
> > Implementing a non-volatile counter as you described appears
> > straight-forward. You haven't mentioned the essence of your problem. I
> > could make guesses, but it would be easier if you tel...Where to rent logic analyzer near Toronto, Canada?
Mel - 2009-10-19 16:42:00
I'm having trouble with an EEPROM and an LCD module hooked to an
AT91SAM7S256. Software is using the at91lib TWI_* routines that came with
an evaluation kit. The program seems to be hanging up on incomplete I/O
with the LCD module, but I don't know why. Analyzing the TWI (aka I2C)
protoco...I2C Driver for DSP/BIOS
ejkrohne - 2009-10-09 15:47:00
I've been in the embedded area for quite some time. I am currently running
DSP/BIOS on a TI F2801.
I am having trouble accessing an EEPROM over I2C.
I saw a thread that mentioned a DSP/BIOS driver for I2C and was wondering
if I could get the source to modify for my application.
I need to be...Software architecture using C for mid-range PIC.
Fevric J. Glandules - 2009-09-09 19:35:00
Hi all,
I am new to this group but checking over recent postings seems
to indicate a fair amount of Clue kicking around [1].
A bit of background before y'all tell me to RTFM or JFGI.
I've got quite a lot of experience in programming 8 bit microcontrollers
with assembler; I've also done qu...Re: How to read SPI data with FTDI chip FT232R?
Paul Carpenter - 2009-09-08 20:49:00
In article , sven@sven.se
says...
> Hello all
>
> I'm trying to read and write serial data with a FTDI chip (FT232R).
>
> I'm using the IC in Synchronous Bit Bang Mode using D0 as a CLK output and
> D1 as a DATA input/output.
It is easier to use a SEPARATE pin for input and out...Re: ARM using Code Composer Studio
L7ColWinters - 2009-08-18 19:55:00
> Hi All,
>
> I am working on DM6467 which is having ARM and DSP processor in it. I am
> very new to ARM and code composer studio. I need to program ARM via code
> composer studio using emulator.
>
> can somebody provide me some examples of ARM code using code composer
> studio or some star...Re: RS485 - MODBUS or PROFIBUS or ....
Not Really Me - 2009-07-23 10:37:00
Vladimir Vassilevsky wrote:
> eeboarder wrote:
> > I am going to work on a project involving multiple devices on the
> > same network(3 or more). One device will have user input and
> > display(master). The other devices(slaves) will just collect sensory
> > data and possibly process PID c...Denx Linux 2.6.19.2 and MicroSys CR825/PM827
gchauvet - 2009-07-21 10:38:00
Hi all,
I use BuildRoot and Linux 2.6.19.2 (Denx kernel) on a MicroSys CR825/
PM827 board, but Linux didn't recognize my 32M flash (4 Intel
28F640C3). I have also tried the pm82x_defconfig profile but Linux
crash after line "NFTL driver: nftlcore.c $Revision: 1.98 $,
nftlmount.c $Revision: 1....Re: Toggling GPIO Pins very quickly
Mark Borgerson - 2009-07-20 10:00:00
In article ,
nick.kani@gmail.com says...
> Hey everyone, I'm working with an MSP430f2012 chip and am tryign to
> generate a delta sigma bitstream using a gpio pin. Unfortunatly whenever I
> try to toggle the pin at a rate faster than 10kHz, the pin appears to not
> be able to fully rise ...Re: Hi-Tech Software bought by Microchip - no more other compilers
larwe - 2009-07-10 14:05:00
On Jul 10, 12:36=A0pm, n...@puntnl.niks (Nico Coesel) wrote:
> > That's absolutely untrue, starting with the difference between double-
> > and single-buffered UARTs, buffered vs. non-buffered PWM peripherals,
>
> Perhaps but -for instance- all UARTs work the same. Provide some
Hardly! ...Live Video Feed over one RS232 line (Rx or Tx)
GregNash - 2009-07-03 10:37:00
Hi all,
I have an idea to try and transmit live video camera data over one RS232
(either Tx or Rx) line. The problem is that I don’t know how to go about
processing the camera data. If the camera data was transmitted over an i2c
bus, then this would be possible (as per
http://www.gedanken.demon.c...Re: A siemens C75 lcd-display on an Atmel micro-controller
2009-06-07 07:58:00
On Jun 6, 6:20=A0pm, "R.Wieser" wrote:
> I've just removed the display outof a Siemens C75 phone (which suffered a
> broken "joystick" and is therefore discarded), and would like to connect =
it
> to an Atmel microcontroller.
Getting data can be very, *very* challenging. I use recycle...Re: USB Enumeration Problem
Paul Urbanus - 2009-06-02 09:20:00
atailor22 wrote:
> Hi,
>
> I am working on a CDC class USB device. When I connect this device to
> Windows XP SP2 machine it's enumeration fails and Windows gives following
> error.
>
> "One of the device attached to this computer has malfunctioned and windows
> does not recognize ...I2C arbitration problems - how can I solve them
kiwi - 2009-05-07 09:41:00
Hi,
I am currently working on an I2C interface (student project). The normal
arbitration process seems to be clear for me but in some specific cases I
have some problems. They are all related to the situation in which no one
has won the arbitration after several bytes and one likes to generate a
...Re: Frequency generation IC recommendation...(Fractional n synthesizer)
-jg - 2009-04-25 18:45:00
On Apr 24, 8:00=A0pm, kishor wrote:
> Hi friends,
>
> I am working on Axis controller project.
> In this I have to generate frequency from 1Hz to 100KHz,with 0.1%
> accuracy.
>
> PCA of micro-controller will not generate frequency at higher range
> with 0.1% accuracy.
You need ...Inexpesive micro with flash, ethernet (WiFi?), digital i/o needed
Mr.G - 2009-04-23 08:32:00
Hello
After my requests a couple of months ago looking for a cheap micro (I went
with the Atmel ATMEGA8), and after the shipping of the first 1,000 units,
I'm back for more suggestions.
32-bit micro with...
flash, eeprom, sram, i2c (not essential), ethernet, and at least 8 i/o. It'd
be ...Re: ADUC842 Keil ,xdata access ?
blisca - 2009-04-19 17:30:00
"Hans-Bernhard Bröker" ha scritto nel messaggio
news:gsg2pl$bbs$02$1@news.t-online.com...
> blisca wrote:
>
> > maybe EXSP=0 so to reserve the XRAM space for data only???
>
> Maybe. But like I said, it's your pick of controller, so you better
pick....from the scratch actually,i ...Re: SPI interface with Camera Module.
2009-04-17 11:54:00
This message is in MIME format. The first part should be readable text,
while the remaining parts are likely unreadable without MIME-aware tools.
--0-500194014-1239983679=:60376
Content-Type: TEXT/PLAIN; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8BIT
On Thu, 16 Apr 2...Re: Acess ARM9 hardware timers ( C and Linux )
Hans Odeberg - 2009-04-15 06:44:00
On 11 Apr, 05:00, "JimNorton" wrote:
> Hi Jack,
>
> My processor is a Samsung S3C2410A. Datasheet is here:http://www.datasheetcatalog.org/datasheet2/e/0lrp9fdj0zyd6e2k2e8ej8lk...
>
> I just want to use a timer to time the reading and writing of some GPIO
> pins to access some hardware...I2C simulator
Wills - 2009-04-11 23:00:00
Hi all,
I want to learn 'how to program an I2C device' . I am trying to find
a simulator for an I2C device which I can use to test any sample
programs I get from the web. When I search the web for a simulator I
get a lot of VLSI related results. Is there a free I2C device
simulator software fo...Re: CPU recommendations?
John Devereux - 2009-03-31 08:23:00
David Brown writes:
> John Devereux wrote:
[...]
> > Don't know if it is the sort of thing you mean, but I use a C macro
> > based "template" for abstracting port pin I/O. (Inspired by a previous
> > discussion here I think).
> >
> > It lets me write:
> >
> > #define rx PI...Re: W65C02S, Z80, 80C31 or other legacy processor?
Jon Kirwan - 2009-03-25 22:42:00
On Wed, 25 Mar 2009 21:33:21 -0500, Spehro Pefhany
wrote:
> On Wed, 25 Mar 2009 09:38:00 -0700 (PDT), the renowned larwe
> wrote:
>
> > Would like some input from legacy dudes :)
> >
> > I've been tasked with designing a small educational computer that has
> > to contain entirely "...Re: Cortex M0
-jg - 2009-03-24 16:34:00
On Mar 25, 3:27=A0am, An Schwob in USA wrote:
>
> There we go, NXP seems to have silicon to be showcased during the ESC
> in San Jose next week!http://www.mcu-related.com/
NXP has more brief info here
http://www.standardics.nxp.com/literature/leaflets/microcontrollers/pdf/cor=
tex-m0.l...Re: Which oscilloscope to go for?
John Devereux - 2009-03-07 07:46:00
"faiyaz" writes:
> Dear all,
>
> I am working on a hardware which has AT91SAM7S64, which works on 18.432
> MHz main clock. This is the maximum frequency which can be seen on
> hardware. Now we are planning to buy an analog oscilloscope, we have seen
> several 30 MHz , 60 MHz and 1...wher to buy a camera chip with integrated dsp
bobster23 - 2009-02-15 15:33:00
is there a camera like the wiimote camera (pixart) that can be buaght
« on: February 11, 2009, 02:23:00 AM »
Hi all,
I hope I am in the correct forum. I am thinking of taking apart the
wiimote camera and connecting it to a micro controller. The wiimote camera
is made by pixart an...Re: Seeking Simple Temperature Solution
larwe - 2009-02-13 11:33:00
> Does anyone know of a IC temperature probe that would work? Maybe
> something similar to a LM34? I can't seem to find one.
What exactly are you meaning by this word "simple"? The LM34 gives you
a simple output voltage. If you are looking for a digital sensor, look
at Microchip's I2C/SPI of...Re: unknown serial protocol - (RS-232. 422 pLAN ) ??
Darragh - 2009-02-07 17:41:00
On Feb 7, 9:46=A0pm, "FreeRTOS.org" wrote:
> "FreeRTOS.org" wrote in message
>
> news:gmkvdu$6c6$1@news.motzarella.org...
>
>
>
> > "Darragh" wrote in message
> > news:6cb6b1e4-63a1-43f4-aa76-1e050a484a42@m40g2000yqh.googlegroups.com..=
.
> > > Hi, I'm currently trying ...Re: How to interface PC and FPGA through USB 2.0
2009-02-03 11:20:00
> I want to interface the DSP board and USRP board through USB 2.0. For
> this, I am initially trying to write a code in Windows, which I will later
> on implement on the DSP board with necessary modifications. Please suggest
> me how I should go about writing this C++ code?
You should rea...control several accelerometers
mahsayeh - 2009-01-28 16:13:00
hi to all
i am trying to control several accelerometers(LIS3LV02DQ)
with one microcontroler(atmega16) using I2C interface and my problem
is how to adress the slaves(accelerometers).all of the slaves have the
same adress in Who Am I register
in other words i dont know what must be written in SLA...wiki for W90P710 ARM SoC
2009-01-25 06:34:00
We are starting the wiki dedicated to W90P710 ARM SoC from Nuvoton.
The W90P710 is a ARM7TDMI SoC features:
1. CPU clock up to 80 MHz.
2. LCD Controller that support STN and TFT LCD Displays (working fine
with 640x480x16bit).
3. TV Encoder.
4. 10/100M Ethernet MAC Controller RMII only.
...Re: Recursion in HLL
Frank Buss - 2009-01-15 23:17:00
Erich78 wrote:
> Is there a way to detect Recursion in High Level language like C ?
> We have had terrible Resets in the last Customer Release and I am being
> asked to analze Semaphore deadlocks, Nested Interrupts and Stack overrun
> issues. We suspect that there is recursion in our sourc...UPDATE: HSMC General Purpose Interface Board, example FPGA design and Excel interface
Nial Stewart - 2009-01-07 12:37:00
Should have crossposted with with comp.arch.fpga.
----------------------------------------------------------------
At the end of November we released the HSMC GPIB, this provides much
needed functionality to any Altera dev kit with an HSMC connector
including....
8 * 10 bit ADC Inputs
8 * ...Re: Silabs F330 Toolstick - recent success?
Frank Buss - 2009-01-04 11:39:00
Antti wrote:
> but seems SiLabs requires SCL pullup to be present if SMBUS is used
Would be a good idea anyway, because usually pullups are very high, e.g.
for the C8051F320 if weak pullup is enabled, the datasheet says that there
is a current of max. 50 uA, if you connect the pin to 0 V. B...Re: ob9655 register values
Paul Carpenter - 2008-12-23 08:47:00
In article ,
technologist@neweraip.com says...
> Hello this is our first post on this board. We installed OV9655 into a
> custom board. However the OV9655 is notorious for being a beast to setup,
> which is proving to be true for us as well. Despite Omnivision's plethora
> of datasheets,...Re: Beginner questions: driving an LCD display [ Pandora, LPC2148, LPC2478, Openmoko ]
=?windows-1252?Q?Glenn_M=F8ller-Holst?= - 2008-12-13 05:20:00
David Gausebeck wrote:
> I have a project where I'd like to display video on a fairly high-
> resolution LCD display -- 320x240 or better.
...
> I've done a lot of programming, but I'm new to embedded systems, so
> I'm trying to figure out where to start.
>
> I expect I'll need a contr...Re: about Maxim MAX3421E
Frnak McKenney - 2008-12-05 08:39:00
On Thu, 04 Dec 2008 08:08:09 -0600, liste11 wrote:
> I need a feedback about MAX3421E. I'm developing a particular device, and
> my boss wondering if we are able to add on our device the USB.
--snip--
> My goal is to have the possibility to write on the USB some data that I'll
> pass by...