AT91RM9200 linux kernel panic

Started by roboman152 in comp.arch.embedded13 years ago 2 replies

Hi all, after disabling the data and I cache my kernel boots! However Im having initrd load issues, I load in a ext2 image at 0x20A00000 and I...

Hi all, after disabling the data and I cache my kernel boots! However Im having initrd load issues, I load in a ext2 image at 0x20A00000 and I get an odd error listed below.. suggestions? Linux version 2.6.14 (roboman@gooseProduction) (gcc version 3.4.5) #6 Thu May 25 21:15:23 EDT 2006 CPU: ARM920T [41129200] revision 0 (ARMv4T) Machine: Atmel AT91RM9200-DK Memory policy: ECC disabled, D...


SPI as secondary storage on ARM dev kit?

Started by Mayank Kaushik in comp.arch.embedded15 years ago 2 replies

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...

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 or Ek, can you tell me where (in parallel or spi flash) is the OS stored, and what is the remainin...


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

Started by Mayank Kaushik in comp.arch.embedded14 years ago 1 reply

Hi, Im an undergrad working on installing Linux on a custom development board based on the AT91RM9200 (for my senior project). Since this...

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 kernel is built for the AT91RM9200-EK. But i was befuddled when it came to "make menuconfig"..what are the opti...


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

Started by rohshall in comp.arch.embedded11 years ago

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...

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 image, the kernel does not boot up. Here is what I see on console: [/START] U-Boot> bootm 20008000


kgdb8250 configuration string on at91rm9200

Started by dirkgently in comp.arch.embedded11 years ago

Hi, I am using kwikbyte at91rm9200 and I want to setup kgdb remote debugging. I have compiled a kernel with kgdb support for serial port (8250)...

Hi, I am using kwikbyte at91rm9200 and I want to setup kgdb remote debugging. I have compiled a kernel with kgdb support for serial port (8250) debugging but I haven't figured out what the kernel boot parameter needs to be for the board kgdb8250= , , , The simpler setting kgdb8250=ttyS0,115200 or kgdb8250=0,115200 has not worked. Any help is appreciated


AT91RM9200 - Vector 6 for dataflash boot woes

Started by Haroldp in comp.arch.embedded12 years ago 1 reply

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...

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 won't work when I try to load it using the boot ROM code that's built into the MCU. The MCU actuall...


AT91RM9200 it's easy to broke data lines ?

Started by Pelos in comp.arch.embedded13 years ago

Hi, I'm going to run my board with AT91RM9200. My board has 32bit SDRAM (2 x HY57V561620C) data bus width. I saw that some data lines was tied...

Hi, I'm going to run my board with AT91RM9200. My board has 32bit SDRAM (2 x HY57V561620C) data bus width. I saw that some data lines was tied together D24 D25 and D26 (close to CPU). I reworked them - now looks clear (I checked contacts too) but my memory test shows that lines D24 and D25 are still high. So my question is - Is it Atmel so fragile ? Could I broke it ? Here is part of m...


AT91rm9200 Devel. Board (Student Project): Choice of OS??

Started by Mayank Kaushik in comp.arch.embedded15 years ago 15 replies

Hi, Im a senior undergrad working on a project to develop an AT91RM9200-based development board, which will be my final undergrad project....

Hi, Im a senior undergrad working on a project to develop an AT91RM9200-based development board, which will be my final undergrad project. Till now, i have been working on interfacing stuff to this controller, setting up its internal peripherals to build interfaces for a final development board. Nows the time to start thinking about having an OS running on the final product. To this end...


AT91RM9200 and SPI Dataflash on CS0 - Linux Kernel

Started by Pelo...@ Home in comp.arch.embedded10 years ago

Hello, Does somebody have working Linux drivers atmel_spi and mtd_dataflash ? I have AT91RM9200 with 8MB spi dataflash connetcted to SPI...

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_dataflash - I see that RM9200 sending data - byte OP_READ_STATUS, cs go down and up, and dataflash...


Build U-Boot for Atmel AT91RM9200 demo board using Greenhills?

Started by Dennis C in comp.arch.embedded15 years ago 2 replies

Hello everyone: I like to build U-Boot for the Atmel AT91RM9200 ARM9 demo board. However the docs say that it is only buildable on Linux using...

Hello everyone: I like to build U-Boot for the Atmel AT91RM9200 ARM9 demo board. However the docs say that it is only buildable on Linux using GNU C. I like to ask if U-Boot can be built using the Greenhills compiler using their MULTI IDE on the Windows XP platform? Has anyone gotten it to work using the Greenhills compiler? Any tips is much appreciated! Thanks


AT91RM9200-Ek u-boot problem

Started by pj0585 in comp.arch.embedded10 years ago

Hi, I'm working on the AT91RM9200-EK board. I've built my own u-boot for booting. My u-boot boots the board properly. It is completely fine....

Hi, I'm working on the AT91RM9200-EK board. I've built my own u-boot for booting. My u-boot boots the board properly. It is completely fine. The problem is that when I follow the procedure to reprogram the flash, using the file on Atmel CD, loader.bin then using my u-boot.bin, I do not get a U-Boot prompt. I am using the u-boot.bin on the Atmel CD for programming the flash and then use my u-...


how to design a dual port ethernet?

Started by zhangjian in comp.arch.embedded13 years ago 10 replies

I want to design a system with dual ethernet port using at91rm9200,which Ethernet chip should i choose?How to control the Ethernet chip...

I want to design a system with dual ethernet port using at91rm9200,which Ethernet chip should i choose?How to control the Ethernet chip using at91rm9200? It need work at 100Mbits/s


AT91RM9200 Lauterbach JTAG effect on Ethernet

Started by Dodd in comp.arch.embedded12 years ago 3 replies

I have what appears to be an odd problem when a Lauterbach (PowerTrace or just the Debugger) is connected to my target board an...

I have what appears to be an odd problem when a Lauterbach (PowerTrace or just the Debugger) is connected to my target board an AT91RM9200-EK. Without the Lauterbach connected on power up UBOOT runs and I can then TFTP an image into RAM. With the Lauterbach connected on power UBOOT runs but when I try and TFTP, UBOOT reports PHY is not connected!! MAC: Error during MII initialization...


AT91RM9200 boot code conversion: ADS assembly to gcc assembly

Started by shuwn yuan in comp.arch.embedded14 years ago 1 reply

hi all, I am using AT91RM9200 board. I have some sample code in ADS compiler & assembler. But because I a using Embest IDE with GNU build...

hi all, I am using AT91RM9200 board. I have some sample code in ADS compiler & assembler. But because I a using Embest IDE with GNU build tools, I have to convert the assembly file to gcc assembly. I have done the conversion of the file below, but fail. Anyone knows what I have done wrong here? =========================================== 1. /* original file for ADS assembler */ ===========...


Atmel ARM AT91RM9200 SDRAM Issue

Started by Jack Klein in comp.arch.embedded15 years ago 3 replies

It appears that the SDRAM controller built into Atmel's AT91RM9200 ARM 9 chip only supports a burst length of 1. Exactly what use is an SDRAM...

It appears that the SDRAM controller built into Atmel's AT91RM9200 ARM 9 chip only supports a burst length of 1. Exactly what use is an SDRAM burst with a length of 1? What advantage does it have over an ordinary (non-burst) SDRAM access? Ulf, are you there? -- Jack Klein Home: http://JK-Technology.Com FAQs for comp.lang.c http://www.eskimo.com/~scs/C-faq/top.html comp.lang.c++ h...


Micro SD read/write not working on AT91RM9200

Started by Bhavik in comp.arch.embedded11 years ago

Hello, I have a board with AT91RM9200 SoC. I am trying to write a test to use Micro SD card on this board. I am using MCI interface to use...

Hello, I have a board with AT91RM9200 SoC. I am trying to write a test to use Micro SD card on this board. I am using MCI interface to use Micro SD card. The initialization commands are working correctly for the Micro SD card. I get all the parameters back after the initialization commands. But the read/write operation are not working for the card. I am using polling method to wait fo...


AT91: DIfference between APB and ASB?

Started by Mayank Kaushik in comp.arch.embedded15 years ago 2 replies

Hi, Im working with the AT91RM9200. I am confused about the distinction between the Advanced Peripheral Bus and the Advanced System...

Hi, Im working with the AT91RM9200. I am confused about the distinction between the Advanced Peripheral Bus and the Advanced System Bus..what are they used for? Someone kindly elaborate Thanx Mayank


linux dies on custom at91rm9200 board

Started by amstewa2 in comp.arch.embedded13 years ago 1 reply

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...

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 over looking that is still trying to map the caches with 32MB of ram (which the dk has) but I ha...


Newbe Crosscompile a ModuleDriver for arm

Started by Hans-Dominik in comp.arch.embedded15 years ago 3 replies

Hi there Sorry for this NewBe question, I?m try o get started in using Atmel AT91RM9200 Board. I've read a lots of how-to and so on. Now...

Hi there Sorry for this NewBe question, I?m try o get started in using Atmel AT91RM9200 Board. I've read a lots of how-to and so on. Now running a 2.6 Kernel on it :) I'd like to use a USB video board on it so i think i have to cross compile this driver. My problem i doesn?t find any example through the internet which told me how to do this. Maybe someone could give me some tips. ...


Problems with sprintf and libgcc.a

Started by Mayank Kaushik in comp.arch.embedded14 years ago 21 replies

Hi everyone, im using "toolchain -bu-2.15_gcc-3.4.3-c-c++-java_nl-1.12.0_gi-6.1.tar.bz2" to compile a simple program for an ARM920T based...

Hi everyone, im using "toolchain -bu-2.15_gcc-3.4.3-c-c++-java_nl-1.12.0_gi-6.1.tar.bz2" to compile a simple program for an ARM920T based microcontroller (AT91RM9200). The development system is running Fedora Core 3. i have not been able to use the "sprintf" function..the program does not compile if i do so. here are the details of my problem: ***************************************...