testing of board using linux

[zze110]

Hello again,

Wondering if anybody has ideas how to accomplish this:

I want to find an automated way to test a board using the onboard uBoot or linux.  Is there any sort of generic software or method I could use to upload a program to the board over rs232/serial then execute it.  Example of tests:  I2C bus, DDR test, etc.

I have a product almost identical to the Ti DM6446 DVEM demo board that I would like to test.   It is running denx uBoot and loads a Montavista linux pro 3.0 image to ram and runs it.  I have root access. 
The thing I notice about MontaVista is their busybox # has an extremely limited command set far less than normal linux.  So, I'm assuming the ability to do this wouldn't be built-in to the OS.

If I had to build it myself I'm guessing I would have to write the test then compile it for the dm6446/montavista and go from there.  Ideas?  thanks!


On a separate note... this same board I have tried rewriting the NAND using an XDS jtag emulator and no matter what I try I am unable to halt the processor.  Would this indicate a hardware problem on the jtag connection?  jtag emulator fails, serial flasher (dvflasher & newer version) also fails, unable to halt cpu.