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#U boot bin serial
#U boot bin archive

If this is the first time flashing the board, you must use a JTAG debugger to put the bootloaders on the board in the following locations: The resulting file will be in the U-Boot root directory as u-boot.bin. Assuming that the toolchain is in your path,

U-Boot uses a basic make command, with CROSS_COMPILE variable.

Configure U-Boot with the following command:.

#U boot bin archive

Download the sources and decompress the archive into a working directory.

Simply copy the board directory and change all references of "DK" to "EK", and copy the config file (include/configs/at91rm9200dk.h) and do the same find and replace. It is extremely simple to modify this to work on the EK board. The AT91RM9200-DK is in the mainline U-Boot. The sources for U-Boot are available in Subversion. Instead, just use the file attached to this page: boot.bin. It emits the following message on the console:īoot.bin is not available from Atmel anymore. boot.binīoot.bin is a file that simply decompresses a gzipped file from flash and loads it into SDRAM for execution. After the end of the download, it branches to the application entry point at the first address of the SRAM.

It then waits for any transaction and downloads a piece of code into the internal SRAM via a Device Firmware Upgrade (DFU) protocol for USB and XMODEM protocol for the DBGU.

#U boot bin serial

It initializes the Debug Unit serial port (DBGU) and the USB device port. If no valid ARM vector sequence is found, the boot uploader is started. The first block of the On-board Parallel flash chip located at U201.The first block an I2C EEPROM (Not populated on board).The first block of the External DataFlash Card inserted at J200.It looks for a valid set of bootstrap vectors in three different locations, in the following order: The BootROM code resides on the actual AT91RM9200 silicon, and is executed at power-on.

The at91rm9200 comes with a barebones bootloader in ROM.

Boot.bin - Initializes hardware and loads an image into SDRAM from Flash.

BootROM - Finds a valid bootstrap image and loads it into SRAM.

The AT91RM9200-EK has a three-stage boot process: This document focuses purely on booting from Parallel flash.

I have created a recovery image for a Dataflash Card that can be used to boot from the card in an emergency situation, however, which can be found on the following page: U-Boot from Dataflash. At this time, I am unable to reproduce the steps necessary to boot from Dataflash.