DOWNLOADING Example on the AT91RM9200DK

1 Download features with the AT91RM9200DK

A Default Boot Program is stored in ROM-based AT91RM9200 Products. Its features are:

· Downloads and Runs an Application from External Storage Media into Internal SRAM

· Up to 64K Bytes Downloaded Code Size

· Automatic Detection of Valid Application

· Bootloader Supporting a Wide Range of Non-volatile Memories

§ SPI DataFlash® connected on SPI NCS0

§ Two-wire EEPROM

§ 8-bit Parallel Memories on NCS0

· Boot Uploader in Case No Valid Program is Detected in External NVM and Supporting Several Communication Media

· Serial Communication on a DBGU (XMODEM Protocol)

· USB Device Port (DFU protocol)

A default boot Program is stored in the parallel flash of the AT91RM9200DK board. Its features are:

By default this is the external boot on parallel FLASH which is active.

Obviously, a project can be downloaded and debugged using the board’s JTAG access.

2 Downloading using AT91RM9200-BootRom program

Using DBGU or USB DFU, the binary will be loaded in RAM at 0x200000, then the bootrom will remap before doing a jump at 0.

2.1 Using XMODEM(DBGU)

Connect the DBGU serial port of the AT91RM9200DK to the PC RS232

Configure a serial tool to communicate at 115200Kbps, 8N1N

Send the binary using Xmodem protocol

2.2 Using USB DFU

Connect the AT91RM9200DK to the PC using the USB link.

Send the binary using the ATMEL DFU application

3 Downloading using AR91RM9200-Thunderboot program

3.1 Using TFTP

Previously, an Ethernet specific initialisation must be done.:

· Connect the DBGU serial port of the AT91RM9200DK to the PC RS232

· Configure a serial tool to communicate at 115200Kbps, 8N1N

· Configure the board Ethernet MAC address, the board IP address and the TFTP server IP address

THUNDER>setenv ethaddr 12.24.96.78.9A.BC

THUNDER>setenv ipaddr 192.168.1.1

THUNDER>setenv serverip 192.168.1.2

· Enter a command executed by thunderboot just after the initialisation

THUNDER>setenv bootcmd tftp file.bin 200000; go 200000

· Save all this environment

THUNDER>saveenv

Reboot the board. The binary is loaded and executed immediately.

3.2 Using Kermit

Connect the DBGU serial port of the AT91RM9200DK to the PC RS232

Configure a serial tool to communicate at 115200Kbps, 8N1N

THUNDER>loadb 200000

## Ready for binary (Kermit) download …

## Start Addr =0x200000

THUNDER>go 200000