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Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.
We found 99 threads matching "dataflash"
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The most relevant threads are listed first
Copy WIN CE to DataFlash
dkatana - 2007-06-25 08:23:00
Hi.
I'm new in microcontrolers. I starting with AT91RM9200 board and Windows
CE 5.0(I must use Win CE). Unfortunetly I've cleared Win CE DataFlash
card.
I have copied DataFlashBoot.bin on 0x20000000 address. How can I copy
image of Win CE to DataFlash? Should I copy some "boot" to DataFlash?
Th...
Problem: How to erase Dataflash
tomC - 2007-05-09 06:39:00
Hi everybody
I have linux 2.6.15 on AT91SAM9261 that has AT45DB321D as dataflash.
I need to write an application that erases the content of dataflash
not at boot-time but while the system is running. Is this possible?
I'd like to have suggestions on how to proceed
Thankyou all
...U-Boot
kongs - 2005-07-30 14:38:00
Hi,
Does anybody tell me how can I delete completly an atmel dataflash wit
U-Boot. I try this first: 1. I unprotect the areas of the dataflash. 2
then i want to erase but i become follow messages: start and/or end adres
not on sector boundary. I look at the atmel site datasheet of th
dataflas...AT91RM9200 and SPI Dataflash on CS0 - Linux Kernel
Pelos @ Home - 2009-10-18 15:16:00
Hello,
Does somebody have working Linux drivers atmel_spi and mtd_dataflash ?
I have AT91RM9200 with 8MB spi dataflash connetcted to SPI CS0.
Before I was using at91_spi and at91_dataflash in kernel 2.6.23 (patched
from maxim) and it was workinf fine. When I switched to the atmel_spi
and mtd_...Problems with programming AT91RM9200
odi - 2009-06-08 15:27:00
hi,
I have designed board with AT91RM9200 microcontroller and I've got some
problems with programming it... I wanted to program any bootloader into
connected AT45DB041D dataflash. Right now I can't send data via DBGU - I
thought it is MAX3232's fault but I replaced it and still nothing. However
sen...file system on dataflash
jerome - 2006-08-15 07:52:00
Hi:
I am using At91RM9200-EK
How can I compile linux kernel, but with a file system on dataflash or
Sd-card?
Thanks in advance
Jeronimo
...Is Atmel dataflash 5v safe?
Tim Mitchell - 2005-04-08 06:44:00
Despite scouring the datasheet, I cannot find the answer to this
question:
Can you safely apply 5V inputs to Atmel Dataflash devices? (vcc=2.7V)
It quotes the "Absolute Max input voltage" as 6.25V, so presumably it
won't blow up, but will it work?
I'm using a 5V processor and would rather...AT91RM9200_EK
layaghi - 2005-12-31 09:43:00
Hi
I have a AT91RM9200 evaluation kit (AT91RM9200_EK).
I want to know how could I use any devices other than DataFlash card for
booting the board and downloading the Win CE image?
when I say "any devices other than DataFlash card" I mean onboard parallel
flash or the MMC,SDcard and so on.
thanks...Looking for large serial EEPROM or FLASH like Atmel's DataFlash
Tom - 2004-06-23 23:09:00
I'm looking for a large serial EEPROM or FLASH chip that comes in a small
package and uses a serial interface. I need something in the range of 1024
kbit - 2048 kbit in an 8-SOIC or smaller package, and it needs to be as cheap
as possible. :)
So far I've only found I2C EEPROMs like the 24C5...Re: AVR External Flash
Rob Turk - 2004-03-19 07:56:00
"Ken Jewell" wrote in message
news:4059be5f$0$31700$fa0fcedb@lovejoy.zen.co.uk...
> Hi,
> does anyone know if there are any existing routines already written
to
> access external Flash RAM (64k x 8) in either ANSI C or Assembler?
>
> Thanks in advance,
> Ken.
>
>
I've u...Re: 3V <-> 5V Level shifter ?
Carsten - 2005-01-31 03:20:00
On Sun, 30 Jan 2005 14:39:36 +0100, "Meindert Sprang"
wrote:
> > Doesn't the Mega need 0.6*VCC as Vih(min) , the datasheet says so ..
> > 0.6 x 5V = 3V
>
> Correct. In my case, the LV device runs at 3.3V, and there it works. So did
> the OP really mean 3V or 3.3V?
> But even with 3V i...Re: AT91RM9200: Errors in transferring file into SDRAM via HyperTerminal (xmodem protocol)
Mayank Kaushik - 2005-05-04 00:14:00
Hello, everyone..
Thanks for your replies.
Yes, i had not recompiled loader.bin for 16-bit operation.
But i got another application from the AT91-CDROM, called
BasicDataFlash. It takes in the file to be loaded from the
hyperterminal, and stores it in SDRAM, where it modifies the 6th ARM
ve...Re: Flash / IC used in SD Cards.
Ulf Samuelsson - 2004-11-12 12:39:00
> We would also have some 'internal' filespace. So i thought of placing
> a second memory on the PCB and on the same SPI bus. This would save
> the work of writing a different driver.
>
> Offcoarse i could add a second SD Card socket to my pcb, but i was
> wondering if the chip used ins...Re: Programming 4MBit ST Flash
Ulf Samuelsson - 2004-03-24 20:21:00
"Klaus Vestergaard Kragelund" skrev i meddelandet
news:4060acaf$0$258$edfadb0f@dread12.news.tele.dk...
> Hi
>
> I have a serial flash device, M25P40, which is programmed via SPI
interface
>
> I have been searching the web and STs homepage and found nothing. Isn't
many
> of thes...Re: AVR Butterfly External Flash Access
2006-04-30 21:12:00
Awesome! Well ok, I'm using ICC 7. I'm coding in C. I have the cheap
avr programming from atmel. I usually write my own code but I'm
focusing on just getting the demo code to work (this ships with ICC7).
What concerned me about the dataflash not working was a document I saw
showing 2.7v operatio...Weird clock signal on dataread (AT91SAM9260)
2007-05-22 13:29:00
I tried posting this once before but I think it was rejected because
of inline images, i'll try posting it again with links to the images:
I have a 6 layered sam9260 board and I'm seeing something strange on
the 18Mhz clock.
This is a scan from the SAM9260-EK (reference) board, when there'...Weird clock behaviour on dataread (AT91SAM9260)
2007-05-22 11:02:00
I have a 6 layered sam9260 board and I'm seeing something strange on
the 18Mhz clock.
This is a scan from the SAM9260-EK (reference) board, when there's any
data written to the dataflash, a probe on the crystal shows this
pattern. (notice the slightly raised ground, which then stabilizes and
...Re: AT91rm9200 Devel. Board (Student Project): Choice of OS??
Ulf Samuelsson - 2005-02-11 11:01:00
>
> EBV is supporting my project and supplies AT91RM9200 QFP samples...
> so probably PCB design will be finished by next week:
> - 100 * 160mm2
> - AT91RM9200-QI-002
> - 64MB SDRAM
> - 8MB flash
> - CF slot
> - USB A/B
> - Ethernet
> - RS232/JTAG
>
> Nothing fancy though ...SPI DataFlash vs parallel Flash for running Linux on an ARM board
Mayank Kaushik - 2005-03-16 05:10:00
Hi,
Ive been developing a board based on the AT91rm9200 (arm920t). I have
added 16 MB ram to this board, and am looking to add some flash.
I want Linux installed on this board. (this is basically an educational
project)
My question is, do i HAVE to add a parallel flash? will such a system
...Re: What's inside a USB flash drive?
KenHopkins - 2005-06-15 03:06:00
I think some of them use Atmel DataFlash like at64DBxxxx type chips.
Ken
www.claymore-electronic.co.uk
...Re: SimmStick FPGA module
Ulf Samuelsson - 2005-02-15 01:29:00
"Pablo Bleyer Kocik" skrev i meddelandet
news:1108427617.762469.128840@g14g2000cwa.googlegroups.com...
> Martin Schoeberl wrote:
> > I would be happy to go the KISS path, but I don't know how one can keep
> > a soft-cpu module simple to handle. You have too many options: You're
> > de...Re: MP3 decoder
Ulf Samuelsson - 2006-05-04 13:03:00
Maki wrote:
> Hello all,
> I'm considering a replacement for an ISD4004 voice audio chip with an
> MP3 decoder [ extended temp. range if possible ]. Any experience with
> using these kind of chips and recommendation of which one to use
> would be appreciated.
>
Check out the AT89C51SN...Re: NGW100 - store root and /usr images for later restore
Ulf Samuelsson - 2008-10-28 16:10:00
"Eric" skrev i meddelandet
news:o5s8g4hrkfnhq7cou0j2gtm7tfu47j8cu7@4ax.com...
>
> I was recently given an Atmel NGW100 board (AVR32) and have been
> learning about it.
>
> I have gotten to the point where I can load root and /usr images to
> the board and run them.
>
> What I nee...SPI Bus noise reduction, any ideas?
Rob Horton - 2007-06-08 06:21:00
I have a number of boards with processors that communicate to about 10
different SPI connected devices, all on the same bus. 1 of these happens
to be an Atmel DataFlash. The DataFlash appears to be experiencing a
corrupted memory problem. These boards exist in fairly noisy
environments and t...Re: data flash emulators
Ulf Samuelsson - 2005-02-21 01:56:00
skrev i meddelandet
news:1109048035.667259.151790@l41g2000cwc.googlegroups.com...
> Remember the days when EEPROM emulators were being used as a way of
> getting the code onto the target and executing the code on the target.
> I was wondering if there is an equivalent for data flash which ...AT91SAM9260 booting and board questions
2007-03-14 14:20:00
I am trying to design a new board based on the AT91SAM9260 processor
and had a few questions :
- Any idea if the DP83848CVV Phyter from National Semi would work with
this proc. (it supports both RMII and MII)
- I am not clear as to point of having both 16-bit NAND flash and
serial DataFlash...Interface Freescale MC9S08Gxx with Atmel DataFlash / Serial Flash ??
ch - 2006-08-22 23:36:00
Hi,
I am currently working on a project that requires me to interface an
existing platform to an external memory, for additional storage. Below
is a block diagram of what I intend to do.
[PC serial port] [existing platform board] [Serial Flash]
The reason of interfacing with my exis...Re: Atmel sells fabs
larwe - 2006-12-14 22:26:00
Jonathan Kirwan wrote:
> This smacks of that, to me. If a company making ICs can't use their
> FABs as well as they can use the money they will get for selling them,
> they probably shouldn't be in the business of running FABs at all.
> This "Fab lite" policy worries me. What about you...AT91RM9200 linux woes
roboman152 - 2006-04-21 13:29:00
Ok So Im to the point I dont know what to try next. Im trying to bring my
custom AT91RM9200 board to life. I have 16MB of SDRAM on CS0 (starting at
0x20000000 ending at 0x21000000)
and 2MB of data flash at 0xC0000000. First step was getting uBoot
running. Which for some reason if I stick uBoot (1....Flash File System for Dataflash
heindekock - 2009-09-07 11:05:00
Hi all
I wrote a flash file system for an 8051 project using a 2MB dataflash over
the last 3 years. I tried to stay as close to stdio from dos (fopen, etc)
as possible. I had to shape and change it a few times as hind sight makes
us cleverer. I needed some special functionality like shrinking the...Re: Lowest power 32-bit MCU with PCI, SDRAM?
Ulf Samuelsson - 2004-11-02 17:20:00
"Rene" skrev i meddelandet
news:4187ffba$0$28026$5402220f@news.sunrise.ch...
> "Ulf Samuelsson" schrieb im Newsbeitrag
> news:2uqbo3F28fe67U1@uni-berlin.de...
> >
> {parts deleted}
>
> > Maybe you could be interested in the Comet Board developed at the
> > Fachhochschule in...Re: Using a small 8-bit micro (LPC900) as external reset / watchdog device!?
Ulf Samuelsson - 2005-02-08 02:58:00
> Our design needs to have a timed reset (shorter!) to get up to speed
> faster.
> External supervisory circuits are more expensive and a lot less
> versatile than low end micros...
> With all these benefits and still so many reset devices on the market,
> I must have missed some import...AT91RM9200 - Vector 6 for dataflash boot woes
Haroldp - 2007-09-08 08:53:00
Hello all,
I have built a board that contains (besides a lot of other stuff) an
AT91RM9200 and an AT45DB642 dataflash chip.
Now I'm trying to code a homebrew boot loader. For a number of reasons, I
cannot use U-boot.
The boot loader works fine when loaded using a JTAG debugger (J-link), but
it ...Re: debug u-boot using BDI2000
Tutu - 2006-12-18 20:01:00
>
> http://www.at91.com/www/phpBB2_mirror/viewtopic.php4?t=322
>
the link inside this Atmel post doesnt work ! But there were other
stuffs which I could pick up ..such as minicom configuration !
Also, I am using parallel flash and most of the solutions were based on
DataFlash and that t...Re: Emulating JTAG with micro for programming PROM
Ulf Samuelsson - 2006-05-04 17:16:00
scott.manton@gmail.com wrote:
> First off I am new to JTAG emulation. I am required to program a
> Xilinx configuration PROM from a microcontroller. I realize that I
> can program the PROM with a cable from the parallel port but the
> product will require field upgrades. I've been siftin...Re: 64MB SPI flash RAM?
Mike Harrison - 2005-06-20 13:42:00
On Mon, 20 Jun 2005 08:25:00 -0700, David Linker wrote:
> I am having trouble finding SPI flash RAM with capacities greater than 4
> MB (64 Mb). I know that there are MMC cards with 64 MB (256 Mb)
> capacities, that can easily be interfaced to SPI, but I would like to
> find the RAM with...Re: IR receiver for I2C bus?
Ulf Samuelsson - 2006-03-24 16:20:00
> > Is there such a chip that receives TV remote control IR signals and
> > stores them so they can be retreived later via I2C?
You just need a large SRAM internally to do this, and then maybe store to
SPI dataflash.
> For some TV remotes, yes. But a single chip can't generally fit all
...Re: Powerful uC/CPU in non-BGA package...
Ulf Samuelsson - 2005-02-07 13:37:00
> >
>
>
> Did you use those Atmel EK/DK boards? Guess those are not cheap (o;
>
> Or are there any toger vendors for AT91RM9200 kits?
>
>
> thx in advance
> rick
>
There are cheaper boards available at www.at91.com
http://www.mechatronicbrick.dk is a new DIMM board with...Database for flash
Henrik [6650] - 2006-04-03 04:22:00
Hello experts,
I am using ARM7 for a project that needs to handle about 1 MB of systemdata
and 1MB of logdata stored in a dataflash.
I have been used to the database API in Windows CE, and have always found it
very useful for smaller systems.
Could someone advice on what I could do in my A...Re: AT91RM9200 low voltage SDRAM...
Ulf Samuelsson - 2005-05-30 12:04:00
"Hijax" skrev i meddelandet
news:d6rvkd$1hl$1@nemesis.news.tpi.pl...
> Hello,
>
> Is it possible to use a low voltage (1.8V) SDRAM chip with the AT91RM9200?
> All the schematics i've seen or the finished boards uses 3.3V ones.
>
> Regards,
>
> Arek
>
Yes, you can run with 1...