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Dataflash in Comp.Arch.Embedded

Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.

We found 36 threads matching "Dataflash"

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Problem: How to erase Dataflash
0

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 ...Problem: How to erase Dataflash

Copy WIN CE to DataFlash
-1

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 Data...Copy WIN CE to DataFlash

U-Boot
0

Started by kongs 8 years ago
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...U-Boot

Problems with programming AT91RM9200
-1

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...Problems with programming AT91RM9200

AT91RM9200 and SPI Dataflash on CS0 - Linux Kernel
-1

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_...AT91RM9200 and SPI Dataflash on CS0 - Linux Kernel

Is Atmel dataflash 5v safe?
0

Started by Tim Mitchell 8 years ago
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 wo...Is Atmel dataflash 5v safe?

AT91RM9200_EK
0

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 o...AT91RM9200_EK

Looking for large serial EEPROM or FLASH like Atmel's DataFlash
0

Started by Tom 9 years ago
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...Looking for large serial EEPROM or FLASH like Atmel's DataFlash

Weird clock signal on dataread (AT91SAM9260)
0

Started by Unknown 6 years ago
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 signal on dataread (AT91SAM9260)

Weird clock behaviour on dataread (AT91SAM9260)
0

Started by Unknown 6 years ago
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 ...Weird clock behaviour on dataread (AT91SAM9260)

SPI DataFlash vs parallel Flash for running Linux on an ARM board
0

Started by Mayank Kaushik 8 years ago
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 ...SPI DataFlash vs parallel Flash for running Linux on an ARM board

Interface Freescale MC9S08Gxx with Atmel DataFlash / Serial Flash ??
0

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...Interface Freescale MC9S08Gxx with Atmel DataFlash / Serial Flash ??

AT91SAM9260 booting and board questions
0

Started by Unknown 6 years ago
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...AT91SAM9260 booting and board questions

SPI Bus noise reduction, any ideas?
0

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...SPI Bus noise reduction, any ideas?

Is Dataflash going obsolete?
-1

aleksa - 2010-10-03 15:27:00
Just been to uk.farnell.com to check for serial flash memory and almost all are Awaiting Delivery / Out of Stock / No Longer Manufactured. Is there something else that is supposed to replace the serial flash or what? ...Is Dataflash going obsolete?

Flash File System for Dataflash
-1

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...Flash File System for Dataflash

AT91RM9200 linux woes
0

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....AT91RM9200 linux woes

AT91RM9200 - Vector 6 for dataflash boot woes
0

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 ...AT91RM9200 - Vector 6 for dataflash boot woes

Database for flash
0

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...Database for flash

Atmel Dataflash (AT45DB642) anyone experienced stuck bits?
0

Rob Horton - 2006-10-27 10:54:00
I have been using the 8MB, AT45DB642, from Atmel for a number of years now. It has become apparent that some of the chips we use have stuck bits at various locations. So far this has exhibited itself in two forms. (1) a consistent pattern that occurs through every one of the 8192 pages. (2...Atmel Dataflash (AT45DB642) anyone experienced stuck bits?

at91rm9200dk u-boot port messed up...
0

Started by jedi 8 years ago
Since I'm doing a port for an architecture using also SPI flash for booting u-boot I need to remove the existing CFG_DATAFLASH configuration which should be portable as the name says but it is hardcoded only for the AT91RM9200DK platform. Don't know which one came to this idea also naming the ...at91rm9200dk u-boot port messed up...

Serial Flash
-1

Jack - 2008-07-02 08:32:00
For an application I need to store a large amount of data (ca. 3MB). A serial flash could be a good idea (I don't need to erase very often, and if I erase, I will erase all the data at once). I found Atmel's products. But there is a problem: Atmel produces 2 types of serial flash: Serial Flash...Serial Flash

AT91RM9200 bootloaders (to boot into u-boot)
0

Started by Darrell Harmon 9 years ago
I have a board based on the AT91RM9200, and want to boot from SPI dataflash. The loader will proceed to boot u-boot (Which is too big for the ROM bootloader to handle). I have read the atmel appnote on that, but boot program will need to be changed. My SDRAM is configured differently than the...AT91RM9200 bootloaders (to boot into u-boot)

Lorax Proseed
0

KenLem - 2006-02-08 10:28:00
http://www.loraxworks.com/4f10dfae90c743d233d7c5bc1f116e19/session.php?action=news The proSeed, the first microcontroller product from the Lorax Works controllers family, with 128Kb of EEPROM, 128Kb of RAM, and a 70Mhz SX microprocessor in a 24pin DIP package, presents an unheard potential for...Lorax Proseed

SPI as secondary storage on ARM dev kit?
0

Started by Mayank Kaushik 8 years ago
Hi, Im trying to build a dev kit for the AT91rm9200, and have linux running on the final board. However, due to the unavailability of buffers for the parallel flash, i can only use the SPI DataFlash for storage, and this is where the OS would reside. If anyone out here has the At91rm9200-Dk...SPI as secondary storage on ARM dev kit?

Remote Flash updates of a SAM9260 board
0

Started by Unknown 6 years ago
I have a custom SAM9260 board, several of these will be installed in customer locations. Once installed they will not be physically accessible. I currently have a 2.6.20 kernel and a ext2 gzipped rootfs running from dataflash. I need suggestions on how to remotely upgrade the software in the f...Remote Flash updates of a SAM9260 board

Starting Bootloader at AT91RM9200-EK
0

lehotzki - 2006-10-27 08:23:00
Hi Im new to ARM9 processors and have the following problem: i want to run any executable code (that i can change) on my plattform. So i found the Denx u-boot and can compile it. Then i tried to download it as stated on the atmel page by setting the jumper to INT then load the DataflashBoot.bin...Starting Bootloader at AT91RM9200-EK

(newbie) Compiling "linux-2.4.27-vrs1-ATMEL" for a custom board..what options should i provide?
0

Started by Mayank Kaushik 8 years ago
Hi, Im an undergrad working on installing Linux on a custom development board based on the AT91RM9200 (for my senior project). Since this is the first time im doing this, i decided to go for the "linux-2.4.27-vrs1-ATMEL" kernle available from the Atmel site. Incedentally, this kerne...(newbie) Compiling "linux-2.4.27-vrs1-ATMEL" for a custom board..what options should i provide?

Position independent code with position dependent data ?
+3

nono240 - 2010-06-30 11:41:00
Hi there ! My CPU has no MMU, very little RAM (8KB), and is running a modified FreeRTOS. I'd like to have the ability to "load" and run some code from USART/DATAFLASH to FLASH as a RTOS task. Of course, for convenience, the compiled code must be fully position independent. Using the...Position independent code with position dependent data ?

RFC: "Comet" board with AT91RM9200
0

Started by Unknown 9 years ago
Hello, we are designing a microcomputer named "Comet" based on the Atmel AT91RM9200 controller. All design files and software will be licensed under the GPL. Currently the schematics is all what we have. We probably packed too much building blocks into the design. Before we cut do...RFC: "Comet" board with AT91RM9200

at91rm9200 Board gets reset spontaneously
0

Started by Mayank Kaushik 8 years ago
Hi , Im trying to build a Development board for the AT91RM9200 and am using SDRAM in 16 bit mode , and 2 Mb Flash. I have managed to Store U-boot in the Dataflash and to get it to boot from it. The Atmel Utility picks up U-boot from the Flash and runs it from SDRAM. The problem im having i...at91rm9200 Board gets reset spontaneously

Amtel SAM9 "boot from NAND" is a myth?
+2

Grant Edwards - 2010-09-15 15:23:00
We recently based a board on an Atmel AT91SAM9G20 part which the FAE and rep said could boot from NAND flash. The eval board can indeed be configured to boot from NAND flash. However, when it comes time to spec parts for a real product, we find that's all smoke and mirrors. The Atmel SAM9 pa...Amtel SAM9 "boot from NAND" is a myth?

u-boot on AT91RM9200DK does not boot up the linux kernel
-1

rohshall - 2008-10-27 07:46:00
Hi, I compiled the kernel image using buildroot for the at91rm9200 development kit (at91rm9200-dk). And I am trying to boot up the kernel using u-boot. I have tried two ways of booting it up. 1. Using bootm command (after downloading uImage): But though u-boot successfully identifies the im...u-boot on AT91RM9200DK does not boot up the linux kernel

NONE
-1

Started by Unknown 9 years ago
Announcing the Atmel AVR Starter Kit complete with ANSI C Development Tools Pricing: Kit 1 - AVR (R) Butterfly hardware = $89 Kit 2 - Lawicel M32 Eval Kit = $109 Availability: June 30, 2003 The Atmel AVR is one of the fastest 8/16 bit microcontrollers available. With this starter kit, you h...NONE

linux dies on custom at91rm9200 board
0

amstewa2 - 2006-09-24 09:15:00
Hello all Im trying to get linux up and running on my system. I have 16MB of SDRAM at 0x20000000 and 2MB of dataflash. I've started with the at91rm9200dk files in the kernel as my start point, and I can get it to boot if and only if I disable my dCache. Im imaging there is a setting somewhere Im...linux dies on custom at91rm9200 board

Kernel panic / page fault help
0

roboman152 - 2006-05-25 19:57:00
Hi, Im a newb to working at this level with the kernel. (mainly a hardware guy) Anyways im trying to get 2.6.14 to run on my custom board. Ive got 16MB of SDRAM and 2MB of Dataflash, it enters the kernel but page faults, below is the whole nitty gritty, any suggestions on what could cause this/...Kernel panic / page fault help