We have our own small DM355 board that we load over UART (no room for JTAG). It works only since a few months.

The UART loader for DM355 is there http://wiki.davincidsp.com/index.php?title=Serial_Boot_and_Flash_Loading_Utility.

If you have the same kind of memory mapping as the eval board, it's possible to use directly the RBL and uboot of the eval board .

- You have to set the two BOOTSEL bits to "1", you'll see BOOTME written every ~second on a RS232 in 115200 bits/s No parity (hyperterminal, Minicom, etc). This validates your hardware ( .... not necessary to try the UART loader if you don't have the BOOTME text). - On a DOS window (works under vista), execute "sfh_DM35x.exe -nanderase" to see if the Flash is properly accessed. - Then execute "sfh_DM35x.exe -nandflash ./ubl/ubl_DM35x_nand.bin u-boot-1.2.0-dm355_evm.bin" if you are just testing on UART.

This is pretty straitforward assuming your board is connected on the COM1 of your PC and your Flash is a 2K bytes max page size.

With uboot it's then easy to add Linux over UART or Ethernet.

Yves.

On 31/10/2008 16:48, Jeff Cooper wrote:
You'll need either a JTAG debugger or a program to load the NAND via the serial port. I've used a BDI2000 on a DM355 board that I'm working on.

The wiki has some information on this: http://wiki.davincidsp.com/index.php?title=RBL_UBL_and_host_program

I know TI was working on a serial loader for the DM355, but I'm not sure of the current state of that work.

Jeff

Panchy Rivas wrote:
When we first populate a custom DM355 PCB how do we get Uboot, kernel,
software

on it?


Thanks

Panchy Rivas



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