Linux & Open Source related information for AT91 Smart ARM Microcontrollers

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GS 1 - 16 Oct 2007 - Main.NicolasFerre
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Getting Started

Requirements

Hardware

  • a Windows XP host (or above) to run the SAM-BA tool ;
  • power supply stocked with the Evaluation Kit ;
  • USB Device Cable ;
  • serial Cross Cable (Female-Female) ;
  • eventually a DataFlash Card => check Boot capabilities matrix (for AT91SAM9263-EK for example) ;
  • AT91SAM9-EK Evaluation Kit. Check below how kits look like and how to connect them :

AT91SAM9260-EK AT91SAM9261-EK AT91SAM9263-EK (REV-A)
AT91SAM9260-EK AT91SAM9261-EK AT91SAM9263-EK (REV-A)
AT91SAM9XE-EK AT91SAM9RL-EK AT91SAM9263-EK (REV-B) 1
AT91SAM9XE-EK AT91SAM9RL-EK AT91SAM9263-EK (REV-B)

Software

  • a serial terminal emulator (HyperTerminal, minicom, etc.) :

Serial communication parameters 115200 8-N-1 :

Baud rate 115200
Data 8 bits
Parity None
Stop 1 bit
Flow control None

  • AT91 ISP 1.10 (or higher) ; containing the SAM-BA tool => Check the SoftwareTools page ;
  • the demo archive provide just below. This archive contains :
    • all 4 components binaries : AT91Bootstrap, u-boot, Linux kernel, root filesystem ;
    • a TCL/SAM-BA script that interfaces with the SAM-BA tool to flash the demo ;
    • a .bat script able to run the flashing script calling SAM-BA itself.

Board Description Binary Sources location
at91sam9260ek Linux4SAM console demo archive linux4sam-angstrom-at91sam9260ek.zip (~ 14 MB) AT91Bootstrap
U-Boot
Linux Kernel
OpenEmbedded-Angstrom
at91sam9xeek Linux4SAM console demo archive linux4sam-angstrom-at91sam9xeek.zip (~ 14 MB)
at91sam9261ek Linux4SAM graphical demo archive linux4sam-angstrom-at91sam9261ek.zip (~ 27 MB)
at91sam9263ek Linux4SAM graphical demo archive linux4sam-angstrom-at91sam9263ek.zip (~ 27 MB)
at91sam9rlek Linux4SAM graphical demo archive linux4sam-angstrom-at91sam9rlek.zip (~ 27 MB) 2

Flashing a demo on AT91 boards

Before flashing the demo, make sure that you have installed the SAM-BA tool on your host computer.

  • connect a USB cable on the board
  • connect a serial link on DBGU connector and open the terminal emulator program
  • choose the proper procedure depending on your chip through the following table :

AT91SAM9260-EK AT91SAM9261-EK AT91SAM9263-EK (RevA)
  • J7 must be opened (BMS=1) to boot from the on-chip Boot ROM
  • follow the AT91SAM9260EKSamBaRecovery recovery method, if needed
  • power up the board
  • verify that the USB connection is established (ATMEL AT91xxxxx Test Board appears in taskbar notification area)
  • J4 must be opened (BMS=1) to boot from the on-chip Boot ROM
  • remove DataFlash Jumper (J21)
  • power up the board
  • verify that the USB connection is established (ATMEL AT91xxxxx Test Board appears in taskbar notification area)
  • plug DataFlash Jumper (J21) back in position 1-2
  • J5-6 must be opened (BMS=1) to boot from the on-chip Boot ROM
  • remove DataFlash Card (J9)
  • power up the board
  • verify that the USB connection is established (ATMEL AT91xxxxx Test Board appears in taskbar notification area)
  • reinsert the DataFlash Card in J9
AT91SAM9XE-EK AT91SAM9RL-EK AT91SAM9263-EK (RevB)
  • erase the content of the internal FLASH by putting the J7 jumper in position 1-2
  • power up the board
  • verify that the USB connection is established (ATMEL AT91xxxxx Test Board appears in taskbar notification area)
  • open now J7 (or put in position 2-3), to boot in normal operating mode
  • J11 must be on 1-2 position (BMS=1) to boot from the on-chip Boot ROM
  • remove DataFlash and NAND Flash Jumpers (J12 & J13)
  • power up the board
  • verify that the USB connection is established (ATMEL AT91xxxxx Test Board appears in taskbar notification area)
  • close DataFlash and NAND Flash Jumpers (J12 & J13)
  • J5-6 must be opened (BMS=1) to boot from the on-chip Boot ROM
  • remove DataFlash Card (J9)
  • remove NAND Flash Jumpers (J29)
  • power up the board
  • verify that the USB connection is established (ATMEL AT91xxxxx Test Board appears in taskbar notification area)
  • reinsert the DataFlash Card in J9 (only for DataFlash demo)
  • close NAND Flash Jumper (J29)

  • launch the proper .bat file : this script will run SAM-BA with proper parameters
  • when the programmation logfile.log appears (this will take a few minutes), remove the USB cable
  • power cycle the board
  • look the system booting on the LCD screen or trough the serial line
  • calibrate accurately the LCD screen (if needed)

Playing with the demo

Ok, now you should have the Linux demo up'n running on your board ! Have a walk through applications of this demo.

Screenshot-6.png

Going Forward

If you want to rebuild this demo from sources, go through each component topic and you will have a comprehensive explanation of it role and how to build it.

For people in a hurry, there is a summary page which collects all material to build from sources : it allows you GoingForward quickly.

Notes

1: AT91SAM9263 MRLA or MRLB could be soldered on this board revision. To identity which chip revision you have, check AT91SAM9263-EK user guide at http://atmel.com/dyn/products/tools_card.asp?tool_id=4057

2: Touchscreen driver not available yet ; check LinuxKernel#2_6_24_at91_exp_patch


Revision 1r1 - 16 Oct 2007 - 09:34:52 - NicolasFerre
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