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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 478 threads matching "i2c"
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The most relevant threads are listed first
Re: Lattice vs Altera (Mico32 / NIOS)....or?
Goli - 03:31 10-10-08
On Oct 10, 12:11=A0am, FreeWheel wrote:
> Hi everybody,
>
> First off all...sorry for cross posting this to both arch.fpga and
> arch.embedded, but I think it fits in both places.
>
> I'm currently in the selection fase of an FPGA vendor. we need a > 2M
> gate chip with DSP capabili...
ISR in SoC
stararvigu@gmail.com - 04:48 03-10-08
Hi all,
My name is Ravi. I am working on system integration and testing.
I am using SDCC compiler for my C code compilation. I have different
peripheral module like i2c, spi, uart, memory controller, lcd.
Inside ISR, based on status of interrupt controller i am setting
flags, and based on these...How connect PC Embedded to MDB (Vending Machine)
juanmafreelance - 21:25 30-09-08
Hi! I am noob in this newsgroup, but i think that it is very interesting.
I'm not english, and I speack very bad it, i'm sorry.
My question is: How connect a PC Embedded with a Vending Machine?? I know
that the protocol used is MDB, but it is different to the pc conector
(RS232, USB, I2C, etc)...Re: 40 core embeddified processor
13:53 30-09-08
On Sep 26, 4:47=A0pm, "Wilco Dijkstra"
wrote:
> The Propellor is pretty odd as well (2 operands, 9-bit direct memory addr=
ess)
> and =A0also uses an unconventional programming language. Personally I'd p=
refer
> a fully featured core with single cycle instructions capable of running C=
...How connect PC Embedded to MDB (Vending Machine)
15:33 28-09-08
Hi!
I'm sorry but I am not English and I speack English very bad.
My question is: How connect a PC Embedded to Vending Machine? I know
that exist a protocol MDB that is used by vending machine, but this
conector is different to pc conector (RS232, USB, i2c, etc). Can I
connect a PC Embedded...IntellaSys SEAforth 40C18 40-core Processor -Guy Macon
Guy Macon - 10:18 26-09-08
Content-Transfer-Encoding: 8Bit
IntellaSys 40-core Processor Announced
"IntellaSys has unveiled its SEAforth 40C18, a 40-core multicore
processor designed for embedded wireless, portable, and
distributed data processing applications. The SEAforth 40C18
is an array of 40 fully functio...Best low cost uP for full Linux
m - 09:33 26-09-08
I am trying to select a uP to build into an embedded device. Here are
the requirements:
- Run full Linux with MMU support
- External bus support for more than 256MB of RAM, preferably DDR2
- Support for 64MB+ of NAND FLASH
- Support for 8MB of NOR FLASH
- I2C (2 ports ideal, one is OK)
- S...Hardware I2C block on PXA (XScale): Hangup??
jasontiller - 17:47 22-09-08
Hello, All, :)
I'm having tons of trouble controlling some simple I2C peripherals via
a Marvell (nee Intel) PXA270 processor. This processor has a built-in
I2C controller, with simple configuration via a few bits in a single
register. When looking on a scope, I'm seeing the bus completely ha...Re: Which development board and LCD?
=?windows-1252?Q?Glenn_M=F8ller-Holst?= - 14:01 22-09-08
abcd12 wrote:
> Hi!
>
> I am building a simple monitoring system, that would read data from few
> sensors and display them on a colour 320x240 LCD. As far as the
> microcontroller goes, I'll probably go with ARM9 or ARM7. Do you have any
> suggestions about the development board and LCD...Re: ST semi RTC M41T94
Martin Griffith - 13:33 09-09-08
On Tue, 9 Sep 2008 09:08:12 -0700 (PDT), in comp.arch.embedded linnix
wrote:
> On Sep 8, 7:19 am, Martin Griffith wrote:
> > I'm waiting for a couple of M41T94 real time clock chips to arrive, so
> > I'm scribbling some 8052 C code in advance. It's an SPI ic.
> >
>
> My question i...Re: 32-Bit Microcontroller for New Project
13:27 08-09-08
On Sep 8, 1:27=A0am, larwe wrote:
> I find this really hard to believe, but okay, fine:
Why is that so hard to believe? All of these microcontrollers are more
similar than different. They all come with 256-512K of Flash, 32-64K
of RAM, all have I2C, SPI, ADC, GPIO, timers, and other periph...rs-232 to i2c converter using 16f88
Squishy - 09:52 26-08-08
Hi guys,
I've been searching the internet and specifically this site now for a few
weeks in an attempt to learn how to get my 16f88 to convert my gps data
(rs-232) to i2c.
I am doing this so that my Lego NXT can receive gps data without it using
up the bluetooth connection.
I have the physi...Re: Micro Controller Advice/Help Needed
deanvesuvio - 13:26 12-08-08
Rich - It seems like the LPC2138 or LPC2136 might provide a very simple
solution. Correct me if I'm wrong, but it looks like with one of these
chips, all I'd need to do is get a UART RS232 interface chip to put in
between the LPC213X and my XE2422H. Add on a power adapter and an RJ-11
jack, and tha...Procyon Library for Atmel AVR MCU - =?ISO-8859-15?Q?I=B2C?= problems
=?ISO-8859-15?Q?R=FCdiger?= Leibrandt - 11:16 30-07-08
Hello!
I am new to programming and am struck with the Manual for the Procyon
Library for Atmel's ATMega MCUs. It basically provides functions for all
the interfaces and functions available on the Atmel MCUs.
Problem is as follows:
I have a Thermopile array sensor - TPA81 (
http://www.robo...Silabs c8051f411 I2C,is clock stretching transparent to the programmer?
blisca - 15:11 21-07-08
Hi to all,thank you for dedicating me a bit of your time.
I'm trying to modify a program that i "inherited", it was done for a similar
project,where the c8051 acts as a I2C slave;
reading the code i saw that in the I2C section done by the SMBus no mention
is done to clock stretching.
I...Alternate supplier for dallas/microchip 1-wire memories
Stef - 11:20 18-07-08
For production of measurement probes, we need to store calibration data
on them. Because of the limited number of connections, the 1-wire
memories look like good candidates. For now we need at least 16kbit of
storage which should be eprom or eeprom. The only suitable device from
maxim therefore ...Re: Ethernet design
Rich Webb - 20:26 16-07-08
On Wed, 16 Jul 2008 15:44:16 -0500, Nobody Here
wrote:
> I need to start thinking about some Ethernet designs, one as a standalone
> switch and the other to integrate a 2 port switch with a microcontroller.
>
> I've looked at some datasheets and reference designs and it doesn't seem
> to...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...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.....Re: BasicX platform
Frank Buss - 04:18 28-06-08
Guy Macon wrote:
> Good description of the internals of the BasicX line which compiles
> BASIC code into an intermediate stack-based language:
Nice description, but I'm not sure, if a virtual machine is a good idea for
microcontrollers. Many applications are not time critical, so this is ...Sound chip manufacturer...
jjwsei - 08:18 19-06-08
I have a project that will incorporate pre-recorded sounds. Something like
nature sounds; ocean waves, birds, etc. Does anyone have any leads as to a
manufacturer that might supply such an item. I've posted some requests to
alibaba.com but have had no responses yet. Obviously the desired module
will...LPC2138 I2C
Frank van Eijkelenburg - 10:27 18-06-08
Hi,
I am still using the LPC2138 ;). Now I have a problem with I2C. When I
try to send some bytes to an EEPROM device, the following happens:
- I2C start condition is made
- interrupt is generated
- I2C address is sent
- EEPROM device gives an ACK
And now nothing happens. If I look at t...Re: Flash retention in uC at higher temps, experience?
TheM - 16:11 14-06-08
"Frank Buss" wrote in message news:i5s7vw2ybqby.17ppigai6cf64.dlg@40tude.net...
> TheM wrote:
>
> > I thought it was limited number of writes. But for certain packages (serial) it practically means
> > unlimited as the protocol limits number of reads sufficiently.
>
> The Freescale ch...Re: build camera using cmos3088
Leon - 15:02 11-06-08
On 11 Jun, 14:50, yoge...@gmail.com wrote:
> On May 17, 7:03 am, "ysugand" wrote:
>
> > Hay, I have just purchase a cmos 3088 and planning to build my own camera
> > from it.
> > I am just wondering what are the others components that I need to purchase
> > to build the camera.
>...How to Un-Hang a DS RTC Chip Stuck in I2C La-La-Land ???
B1ackwater - 11:02 10-06-08
I've been working with a Real-Time-Clock chip, the DS-1337+, and
noticed that if the final I2C read operation isn't accompanied
by a 'no-ack' then I2C communications hang-up shortly thereafter.
The PIC language I'm using (MikroPascal) does not have a proper
"time-out" for I2C operations, so ever...initialization steps that I have learned
Rudy - 09:51 10-06-08
I have recently learned some initialization mistakes that I have made
while programming a TMS470R1B1M and for all the new people who do not
have experience (like myself), I would like to share these. Not sure
if this applies to this group since it seems people here have a lot of
experience, but...Re: What Serial Link to use
Anton Erasmus - 11:40 09-06-08
On Mon, 09 Jun 2008 05:20:15 -0500, "Jalon"
wrote:
> Hi All,
>
> I am a novice in Embedded and looking for inputs on the Basic
> characteristics of serial protocols that will help me in deciding which
> protocol to use (SPI/SCI,I2C..... RS485, RS432).
>
> In other words i find easy t...Re: ZIP Algorithm on PIC 16F/18F ?
Jim Granville - 18:47 02-06-08
B1ackwater wrote:
>
> I suppose we could add another fRAM chip, but, well,
> hardware complexity costs dontchaknow ...
or just move to a larger one ?
Ramton have bigger devices then 64kb.
They do i2c to 512kb, and also I see a 2Mb SPI model,
with a 40Mhz spec
-jg
...Re: Any serial analyzer recommendations?
Rich Webb - 14:31 21-05-08
On Wed, 21 May 2008 10:43:24 -0700 (PDT), fredbasset1000@gmail.com
wrote:
> Hi All,
>
> I need to monitor the serial traffic between a PC and an embedded
> system.
> Can anyone recommend an inexpensive serial analyzer to do this?
> Bonus if it works with Linux as well as Windows.
I use ...I2c slaves at different clocks
sajeera - 02:59 16-05-08
Hi,
My question is a very basic one. Can an I2C Master run a slave at 100
kz and another slave at 400 khz?
Thank you,
Sharaf
...Re: uC Slection for a learner project
Frank-Christian Kruegel - 11:41 04-05-08
On Sat, 3 May 2008 10:51:56 -0700 (PDT), AC Me
wrote:
> 1. Very small power consumption. It would be nice if the uC would be
> capable of operating from the merest suggestion of a hint of a
> picowatt :)
There are several. I'd start with MSP430 and AVR.
> 2. A 1-Wire interface would b...Re: Anyone out there using Ada ?
James Beck - 15:46 30-04-08
In article ,
yaldnif.w@blueyonder.co.uk says...
> On 30/04/2008 17:20, in article
> 125abc62-7cc7-4e73-9bcb-f329275865dc@q1g2000prf.googlegroups.com, "linnix"
> wrote:
>
> >
> > > "The 1980s will probably be remembered as the decade in which
> > > programmers took a giganti...CM3 support
henza - 18:01 27-04-08
Hi all,
I would like to know if uclinux suports CM3 port and other peripherals
such
as I2C, ethernet, RS232... and other communication method?
Many thanks,
Henry
...Re: Monochrome LCDs
larwe - 07:26 23-04-08
On Apr 23, 4:55=A0am, "ydoubl...@gmail.com" wrote:
> Just about to begin some works on Monochrome LCDs. I had some
> experience dealing with those characters LCD driven by HD controllers.
What kind of monochrome LCDs? There are some simple LCDs with the
controller integrated on the glas...Re: A Challenge for serialized processor design and implementation
rickman - 16:51 09-04-08
On Apr 8, 5:30 pm, Jim Granville
wrote:
>
> Re Quad Serial memory devices, and execute in place :
> I see SST have just released a Quad device as well.
> $1.16/10K for 16MBit
>
> Good news, and bad news :
>
> Good news: 80MHz nibble rate. They also added 8 & 16 bit address modes,...Re: PCI SPI interface card
07:02 01-04-08
On Mar 31, 9:58=A0pm, Freelance Embedded Systems Engineer
wrote:
> p...@island-sys.com wrote:
> > I am developing an embedded product, and I need to talk to it using
> > the MPU's SPI interface. =A0I have been looking around for a cheap PCI
> > card that has an SPI interface on it but...Re: Averlogic AL250 and scan doubling
Paul Carpenter - 09:08 28-03-08
"Keith M" wrote in message
news:9X%Gj.4590$N_5.2704@trnddc05...
> Does anyone have experience with the Averlogic AL250 Video Scan Doubler
IC?
Not directly but doing various resolution video deinterlacing to various
resolution
LCD panels.
> Datasheet is here
>
> http://www.ortodox...Re: SPI noise, shielded cable required?
Leon - 11:15 22-03-08
On Mar 22, 12:12=A0pm, "dohzer" wrote:
> I've got an SPI master/slave test circuit set up between two Atmel ATmega8=
> microcontrollers, with the master on an STK500 development board and the
> slave on a breadboard.
>
> I noticed that sometimes I would get noisy communications and ot...Re: QAM tuner ic: who makes one?
Hans Bus - 05:51 20-03-08
Rodo schreef:
> Hi all,
>
> I was looking at Broadcom's parts for (cable) tuner/receivers. I tried to
> find other mfrs that make similar products. I found Infineon makes some
> stuff for tuners but not the QAM kind for cable. Who else makes QAM tuner
> chips? Maybe even simpler than...Re: Linux RAM driver question
larwe - 05:53 26-02-08
On Feb 25, 9:58 am, Tim Wescott wrote:
> Now, I _don't_ know if PC chipsets need to have their RAM drivers set up
> by the processor or if they're just designed to work with specific types
> of RAM and that's that. I know the Motorola MPC860 did work with a
They certainly do need powe...