Hallo, im gonna post this because it gave a headache last week, so if i can help someone with the troubles i previously had, itll be great.
First, im using dm6467t, i have a windows xp machine, and a virtual machine in vmware with linux ubuntu 9.10. You will need all of this if you want to follow all the steps provided in the ti wiki im gonna provide you. Also you will need CCS, we used version 4 and you need to have a serial cable between the computer and the board, if your machine doesnt have a native serial port, you can obtain a usb to serial converter in any electronic store. The following link explains everything you need to know to restore ubl and uboot, but if youre new like me, some things wont be as obvious as the wiki think they are.
http://processors.wiki.ti.com/index.php/DM6467_EVM_Installation
first of all you need to have the prerequisites it tells you, the flash utils, pearl installed in your windows, and board utils. The flash utils can be found in the wiki, they have a link for that, but pearl, must be installed on your own, you must head to the main page, and install pearl 5.10, note that a prerequisite for this, is that you must have framework 2.0 or later, and finally the board utils can be found here
http://arago-project.org/files/releases/davinci-psp_3.x.0.0-r34/
and this is the link of the pearl
and finally you will need the uImage just in case uboot doesnt work, from here you will download u-boot-dm6467t-evm.bin
http://arago-project.org/files/releases/davinci-psp_3.x.0.0-r34/images/dm6467t-evm/
after you have this 3 things you will have to Build UBL, FOLLOW ALL THE STEPS FROM THE WIKI LINK, in the section Steps for Building UBL. After that you it will create you a file in the C:\Program Files\Texas Instruments\ccsv4\flash-utils-dm646x\tools\util it will be named davinciUBLais.bin.
If you like, you can create your own uboot.bin in your linux machine, but im gonna do this even more easy, follow the steps about Flashing UBL and U-Boot to NAND using Serial Flasher , in the step 2.- Download sfh_DM646x.exe, davinciUBLais.bin and u-boot.bin to a local folder, let's say "C:\tmp", if you dont have the u-boot.bin file, you must replace it from the one wich came with the CD called u-boot-dm6467t-evm.bin or the one wich was downloaded from the previous link. When you get to the step in when you must type in the windows command prompt, the instruction will be a litle different since you have replaced one file, it will be like this "sfh_DM646x.exe -p COM1 -nandflash -UBLStartAddr 0x20 davinciUBLais.bin u-boot-dm6467t-evm.bin". Im gonna out some images, of how it will look on youre computer, im sorry about not getting into details, but all the steps are in the link provided at the start, im just proposing an alternate way of doing things.
in the last image it dislpays an error, i believe thats because linux kernel image its missing, so you must follow the next steps on the wiki to recovering it, but at least you can communicate with the board once again, hope this its useful.
