uImage not workin

Started by pratibha_275 in AT91SAM ARM13 years ago 7 replies

Hi! I am making my own uImage by compiling my Angstrom linux but whenever i am copying this image in my at91sam9260 board, it is giving me an...

Hi! I am making my own uImage by compiling my Angstrom linux but whenever i am copying this image in my at91sam9260 board, it is giving me an error message while booting and working: No filesystem could mount root, tried: jffs2 Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) Can anybody help?


interrupt handling using mmap

Started by prashant sangal in AT91SAM ARM13 years ago 2 replies

Hello, I am trying to use PIO IRQs of AT91SAM9260. I want to use mmap for this purpose. but i am getting seg fault while initializing the AIC....

Hello, I am trying to use PIO IRQs of AT91SAM9260. I want to use mmap for this purpose. but i am getting seg fault while initializing the AIC. Have anybody used this process? With Thanks and Regards, Prashant Yahoo! recommends that you upgrade to the new and safer Internet Explorer 8. http://downloads.yahoo.com/in/internetexplorer/


Newbie Qs: Buildroot and AT91SAM9261-EK

Started by Dan Lyke in AT91SAM ARM13 years ago 6 replies

Two questions: 1. Where's a simple step-by-step document on installing the binaries I've built with Buildroot on to a AT91SAM9261-EK...

Two questions: 1. Where's a simple step-by-step document on installing the binaries I've built with Buildroot on to a AT91SAM9261-EK (or AT91SAM9(RL|XE)-EK, but the first is the target I really want)? I've tried using the Angstrom demo loader, just replacing the binary names in the TCL script, but that's apparently not it. 2. I've checked the "EABI" box on the compile, is that the prob...


Usage of USB drivers -Reg

Started by rama subrahmanyam in AT91SAM ARM13 years ago 1 reply

Hi, Iam new to the USB drivers in Linux. I don't know how to test my USB driver.. What is the starting point for USB drivers? Actually I...

Hi, Iam new to the USB drivers in Linux. I don't know how to test my USB driver.. What is the starting point for USB drivers? Actually I want to write driver for WiFi USB dongle. Iam following the O'Reilly book for Linux device drivers for USB drivers. With regards, Bh.Subrahmanyam. Love Cricket? Check out live scores, photos, video highlights and more. Click here http://c...


How to communicate with USB in AT91SAM9260 in c with linux?

Started by pratibha_275 in AT91SAM ARM13 years ago 2 replies

Hi! I want to read and write data with USB ports in AT91SAM9260 in Linux in C. I am not getting any clue how to get it.Like to read a RS232 i...

Hi! I want to read and write data with USB ports in AT91SAM9260 in Linux in C. I am not getting any clue how to get it.Like to read a RS232 i open a serial port as tts0,tty0....so on. cant it possible to open a serial port with ttyUSB. I am trying it like this but not succeeding. I am just a beginner with it.Can anybody help? ------------------------------------


uClinux port for at91sam7se512

Started by zahiddreamz_2004 in AT91SAM ARM13 years ago 2 replies

Hi All, I have an ATMEL SAM7SE512 EK board. I am trying to port uClinux on it. But still unable to find the success. I have some porting...

Hi All, I have an ATMEL SAM7SE512 EK board. I am trying to port uClinux on it. But still unable to find the success. I have some porting experience with Linux kernel onto AT91SAM9263-EK board. I have read from portal regarding porting uClinux on to SAM7 series. In that portal he asked us to the existing support for ARM7TDMI controller(AT91x40). I found that portal was fine because my ARM core i...


How to acces USB ports in AT91SAM9260 ?

Started by pratibha_275 in AT91SAM ARM13 years ago 4 replies

Hi! I am using "/dev/ttys0or1or2" to access my serial ports but being unable to access USB ports by giving "/dev/usb1". Do i need to write a USB...

Hi! I am using "/dev/ttys0or1or2" to access my serial ports but being unable to access USB ports by giving "/dev/usb1". Do i need to write a USB driver to access or what should I do? ------------------------------------


Super accurate short delays, SAM9XE and GCC?

Started by Dan Lyke in AT91SAM ARM13 years ago 14 replies

I'm driving some hardware with the SAM9XE that has some hard real time limits: I need to lower some pins, wait for *two microseconds* then raise...

I'm driving some hardware with the SAM9XE that has some hard real time limits: I need to lower some pins, wait for *two microseconds* then raise those pins. Any longer and I let the magic smoke out. Any shorter and the right thing fails to happen. I'm doing this on the AT91SAM9XE-EK with code that looks like: void Strobe( unsigned int bits ) { LowerPins(...); // an inline function...


Problem initating display with spi, at91sam7s

Started by yeayeah85 in AT91SAM ARM13 years ago 2 replies

Hi all! I have been trying to get this display to work whole week and I'm near insanity :( I have an OLED, dd-160128fc-2a. It is controlled...

Hi all! I have been trying to get this display to work whole week and I'm near insanity :( I have an OLED, dd-160128fc-2a. It is controlled via SPI. Its minimum clock cycle is 60nS (= 16.66MHz). The display is all black and nothing seems to get threw.. display: http://www.techdesign.be/shop/datasheets/dd-160128fc-2a.pdf controller: http://www.techdesign.be/shop/datasheets/SEPS525%5B1%5D....


AT91SAM9260-EK via USB using Eclipse

Started by aydi...@gmail.com in AT91SAM ARM13 years ago 5 replies

Hi all, I'm a begginner in embedded debugging technologies. I'm sorry for my very basic questions.. I'm using AT91SAM9260-EK + Yagarto +...

Hi all, I'm a begginner in embedded debugging technologies. I'm sorry for my very basic questions.. I'm using AT91SAM9260-EK + Yagarto + Eclipse. I'm using Windows XP. I am trying to communicate with the card via USB. I have been reading about one week however I still have no idea how to do that. I don't know what to do with 6124.inf or usbser.sys files. Should I go through CDC or HID? ...


Ask a Question to the EmbeddedRelated community

To significantly increase your chances of receiving answers, please make sure to:

  1. Use a meaningful title
  2. Express your question clearly and well
  3. Do not use this forum to promote your product, service or business
  4. Write in clear, grammatical, correctly-spelled language
  5. Do not post content that violates a copyright