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CompactFlash
Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.
We found 107 threads matching "compactflash"
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Booting Linux from CompactFlash on AT91SAM9260
2007-10-28 11:07:00
The AT91SAM9260 appears to include EBI support for CompactFlash, but
the AT91SAM9260-EK development board does not include a CompactFlash
interface.
Assuming I can come up with the hardware, how hard will it be to
develop the U-Boot and Linux driver support required to boot Linux 2.6
from Com...
CompactFlash endurance check
Markus Zingg - 2004-06-08 11:50:00
Hi group
I heard rumors that's possible to read out how many times a given
CompactFlash was written to. I haven't found out how to get this
information out of a card yet. Does someone know ?
TIA
Markus
...Want insight on Compact Flash Standard
Johnson Liuis - 2004-12-16 17:56:00
The compactflash standard a( or compactflash + standard which is more
appropriate), is a standard for the ultra-small, removable data storage
system and additional card functionality including magnetic disk drive data
storage and I/O cards such as ethernet, serial, fax/modem, digital phone
card,...Byte wandering in CompactFlash
Sean W - 2004-04-23 23:14:00
I have an 8051 uC using a CompactFlash. Using LBA I know how to open in
read or write mode in a specific sector. I'm needing to find out if its
possible to access a specific byte without re-writing data. If so, how?
Thanks,
Sean
...ATAPI-4 mode for CompactFlash
Martin - 2004-03-30 04:15:00
I want ask which mode is using CompactFlash device. It's not clear
from ATAPI-4 spec. Is it always PIO in/out protocol or can I even run
write/read in any of DMA modes?
...Recommendation for ext2 or ext3 with CompactFlash
2007-12-26 17:15:00
Hello,
We are developing a Linux based embedded system that will use
CompactFlash.
Should we prefer ext2 or ext3? How should we think about the trade-
offs?
What is your experience using either in a fielded system?
Thanks.
Jim
...Re: Compact Flash File System
Alex Pavloff - 2004-01-05 18:19:00
On Mon, 05 Jan 2004 21:11:54 +0000, Ben Popoola
wrote:
> I need to port a compact flash file system to Forth to use in an
> embedded FPGA project.
>
> Can anyone provide me with C source code or any other documents that I
> can get started with. A useful document would be the file stru...WiFi Compactflash card w Linux drivers?
Ulf Samuelsson - 2006-03-27 19:50:00
Is there any good CompactFlash WiFi cards with Linux drivers out there which
is not going obsolete short term?
--
Best Regards,
Ulf Samuelsson
This is intended to be my personal opinion which may,
or may bot be shared by my employer Atmel Nordic AB
...CompactFlash to PC parallel adapter: good for cannibalizing?
Happy Segfault - 2004-05-24 20:58:00
Hi all,
I've been looking into how to interface huge and cheap consumer flash
memory cards with hobby projects powered by an AVR, PIC, or MSP430. A
lot of the advice seems to be to use MMC or SD memory cards in SPI I/O
mode. That seems like a good approach, but (1) sockets for these card...Formatting a CompactFlash card and using it.
Anupama - 2004-07-27 07:25:00
Hi,
I am trying to write a program in C language to format a Compact Flash
card. I have the CompactFlash Association specification. I am unable
to figure out how to read and write to the flash card and configure
the various registers to support memory mode. If anybody could give me
some tips o...Low cost SBC with IDE interface
Jim - 2004-05-05 21:55:00
Hello,
I am looking for a small SBC that includes serial, Ethernet, and an
IDE interface for connection to a CompactFlash or disk drive. I have
been using an AVR based board from EDTP, but it has been discontinued.
I am not wed to AVR. Coldfire, ARM, x86, or whatever works is fine.
I wou...How to read the 'Card Information Structure' from a CompactFlash card
irotas - 2009-04-14 13:40:00
I'm trying to find out how to read the manufacturer and product name
from the 'Card Information Structure' on a CompactFlash card.
Here's the details:
- Linux 2.4 kernel
- BusyBox v1.00-rc3
- Need to be able to read the CIS from userland
- Need to be able to read the CIS from an embedded...CompactFlash True IDE support for master/slave
Theo Markettos - 2007-04-01 20:03:00
I'm contemplating replacing an old ATA hard disc with a CompactFlash card in
an adaptor. I've been reading the CF 2 specification, which suggests that
/CSEL is used to select between master and slave mode (grounded=master,
open=slave). So if I use an adaptor I should be able to put a CF card an...CompactFlash Identity - industry standard?
Jack - 2004-09-21 09:30:00
I have managed to access a Sandisk CompactFlash device using an 8051
micro, and am able to read its identity, and also read and write
sectors in this device. Next task is to tackle FAT16...
My question relates to the Identify command (0xEC) with which one can
check out the CF device's intrins...Re: problem accessing a specific CF Card (Compact Flash) in 8-bit TrueIDE mode
larwe - 2006-01-12 18:29:00
Rufus V. Smith wrote:
> Which we are not able to read, all signs being that it is not switching
> into 8-bit mode upon request. This one does not go into 8-bit mode, nor
> does it report 8-bit mode in error as an "unsupported feature". And yes,
> From the CF spec:
To conform to thi...CompactFlash for storage
Spoon - 2007-09-04 05:51:00
[ Message cross-posted to comp.arch.embedded and comp.arch.storage ]
Hello everyone,
I have an x86-based system running Linux, and I'm considering using a
CompactFlash card for non-volatile storage, instead of a typical hard
disk drive.
I was wondering if I could just use the same IDE d...Re: CF card at IDE port: Removable drive !?!
larwe - 2007-01-14 13:16:00
Juergen Marquardt wrote:
> have a CF card connected to an ide port via passive adapter.
> XP reports "removable drive" and refuses of partitioning the drive.
> How to make it a "fixed drive/hard disk" again?
The first two bytes of the IDE Identify information for a CompactFlash
card ar...Re: Smart Media or Compact Flash
Markus Zingg - 2004-07-11 02:35:00
> Does anyone here know of a project using AVR's to read or write Smart
> Media cards or Compact Flash cards? Thanks.
There are many such projects available, and there are also very good
app notes available in many places. One I can recommend is the sandisc
site.
Generally speaking Compact...Are DMA modes possible in CompactFlash in TrueIDE mode?
Darin Johnson - 2006-04-09 02:00:00
I've done an ATA IDENTIFY on several high speed CompactFlash devices,
using True-IDE mode, and none of them report any DMA capability at
all. This is a bit worrying. (ie, 2GB Lexar Media drives for example)
The CFA 3.0 spec is confusing in this regard. Sometimes it says that
DMA modes are s...Compact Flash confusion
Gaurav - 2005-03-03 07:02:00
Please help me understand various modes in which CF can be accessed.
I understand that there are 3 access modes of CompactFlash card:
1. PC Card ATA memory mode (uses OE-, WE-)
2. PC Card ATA IO mode (uses IORD-, IOWR-)
3. true IDE mode (complies to ATA-4)
I have following doubts:
...CompactFlash IDE - not recognized
Kapp - 2006-12-21 10:18:00
am converting an old laptop into a digital picture frame. My thought was
to create a small XP (nlite) with the apps I need (slideshow, wireless, vnc)
on a hard drive and then copy it over to a CompactFlash which I would then
replace the laptop harddrive with. I've got a nice tight version on a h...CF Performance settings
habib bouaziz-viallet - 2005-02-18 13:42:00
Hi all,
Is anybody knows how to configure CompactFlash for best performance.
What register ? May be FEATURE_REG in ATA's ?
My design reaches about 150Ko/s which is far from CF spec.
Thank you all, Habib.
...Large drive without partitions
Darin Johnson - 2008-08-14 21:27:00
I've got a wierd problem that maybe someone here may have run into.
Windows related but tied to embedded file systems.
We've got a third party file system on large USB hard drives
and small CompactFlash with our embedded system. We've
got a Windows driver for the file system which we can use ...Re: low-cost embedded CPU with PCI ??
2004-12-18 15:25:00
If power consumption and WLAN are the only questions, I suspect miniPCI
is the wrong answer. I'd suggest either using a CompactFlash (PCMCIA,
but not CardBus) WLAN, or USB.
...PCMCIA on PCI
Duck Egg - 2006-03-21 22:42:00
I am looking for a controller / bridge component between PCI and PCMCIA
/ CompactFlash.
i.e. I want to implement a PCMCIA interface for WLAN transceivers on a
single board computer with PCI.
Any other suggestions or traps.
Thanks,
Greg
...Re: IDE to Compact Flash Card?
Lewin Edwards - 2004-07-25 18:14:00
> small anymore. Then I thought about maybe using a CF card. Does
> anybody know if there are kits available for hooking up a CF card to a
> MB IDE connector so the computer thinks theres a HD on the other end??
STFW.
No drivers are required.
...Embeddable FAT filesystem
Tim Clacy - 2004-09-13 11:10:00
Can you recommend an embeddable FAT filesystem library that meet these
criteria:
Must Support:
1) FAT16, FAT32
2) Removable Media (CompactFlash)
3) Disk Format functionality
4) Check Disk functionality
5) Flush FAT capability
Should support:
1) FAT12, Long file name
2) SetFileSize ...Re: eee pc? no eee box!
Boo - 2008-08-18 12:28:00
> It's here, available, ex-stock and cheap. It is what it is. I'm not
> advocating it for anything other than embedded or industrial use. At
> least CompactFlash has a mechnical standard, so you know what you are
> dealing with. As far as I know, USB sticks have no mechanical standard
> bey...Re: AVR + USB Memory stick
larwe - 2005-12-26 11:14:00
> I need to log around 300MBytes of data. USB memory sticks are cost effective
> storage mediums. Is there a simple way to interface a USB memory stick with
> an ATMEL microcotroller?
No. Use a CompactFlash card.
...Re: Please Help!! Single Board Computer and USB
Lewin A.R.W. Edwards - 2004-09-22 02:42:00
> I know this is probably an easy question for some of you, but here's
It's not an easy question. Host-side USB is very difficult to implement.
Yes it can be done. Trying to do it - especially inside Rabbit's
baroque, nonstandard environment - is very painful. I would abandon the
idea of USB ...Can a disk sector span multiple partitions?
irotas - 2009-03-24 08:22:00
Is it always, infallibly, 100% true that a disk sector is entirely
contained within a single partition?
If it matters, I'm concerned about ext3 partitions on a CompactFlash
card.
Thanks,
Adam
...Re: Revised draft of " [OT?] a SIMPLISTIC RS232 data logger using some flash device --- does it exist commercially?"
Ross Marchant - 2005-06-23 20:25:00
"Richard Owlett" wrote in message
news:11bm45r5dnt9kc2@corp.supernews.com...
> My thanks to the group for providing useful input in response to a
> poorly defined question.
>
> I had broken my problem statement into three parts.
> 1. what I wanted to accomplish
> 2. a view of possibl...Re: True IDE
Peter - 2005-12-21 05:29:00
"prasi" wrote in message
news:1135146596.334199.78870@g49g2000cwa.googlegroups.com...
> thanks Homer,
> But i need info/spec on TRUE IDE/PCMCIA-ATA
>
If you follow the links on that page you will find this:
http://www.compactflash.org/ which quotes speeds from 16MB/Sec up to
66MB/se...FAT I/O code for Atmel 8051
Sean Whitesell - 2004-01-13 16:51:00
I'm trying to find some code for my CompactFlash project. All the code
I find is for AVR and obviously wont work. Does anyone have any full
code I can have? OR can recommend a place to purchase code? Most of
the code I have found for sell is for x86 boards.
Thanks,
Sean
...Re: problem accessing a specific CF Card (Compact Flash) in 8-bit TrueIDE mode
Rufus V. Smith - 2006-02-01 21:23:00
"Rufus V. Smith" wrote in message news:...
> "larwe" wrote in message
> news:1137108567.074790.187060@f14g2000cwb.googlegroups.com...
> >
> > Rufus V. Smith wrote:
> >
> > > Which we are not able to read, all signs being that it is not switching
> > > into 8-bit mode upon reque...CompactFlash + microcontroller weirdness
H. Peter Anvin - 2004-09-17 15:25:00
Hello,
I wanted to inquire if someone else has seen this kind of phenomenon
before...
I have a design (currently implemented in an FPGA) which drives a
CompactFlash from a microcontroller, specifically a T80 (Z80 clone)
from opencores.org, with my own firmware. The clock frequency is
25 M...CompactFlash diagnostics?
Juergen Marquardt - 2006-09-01 05:03:00
Customer asks for doing dioagnostics of
an embedded system (X86 based, VC++).
Part of system is a compact flash card.
Any C (or C++) code there to make some
sort of diagnostics:
- read/write/verify sectors
- read CIS space
- determine state of wear leveling
- maybe more...?
Juergen
...LBA mode switching on my compactflash
nono240-no-spam@altern.org - 2005-06-09 05:38:00
Hi all,
I'm successfully using a CF on my design with CHS mode addressing for
weeks, but when i'm trying to access it in LBA mode (by setting the LBA
bit (6) in the HEAD register before sending 0x20 command), for
retrieving the boot sector (LBA=0) for example, i'm not getting the
boot sector ...PC104 question
2004-08-31 17:26:00
Hi,
I am a PC104 newbie.
I am trying to boot a PC104 using a Compactflash flash memory card. To do
so, I first copied system files onto it (from a Windows98 machine). I then
used the flash card to boot the PC104, but encountered "Disk I/O error".
Could someone let me know what could be wrong?
...Re: Flash Memory Conundrum
Ross Marchant - 2006-03-23 20:38:00
Keith Wootten wrote:
> Hi
>
> I'm messing with a Hynix NAND Flash chip -this one's 512MiB and is used
> in some USB pen drives. I have it hooked up to a spare uC evaluation
> board with lots of I/O and I'm bit-bashing it to test it. It's an 8 bit
> wide serial interface - quite eas...