Running a standalone SYS/BIOS application on DM8148

debasish saha1

Hi,
I want to know how to run the standalone SYS/BIOS application in DM8148 EVM. What is the bootloader I should use? where I can get these packages?

If I want to flash my application in SD card or SPI flash, how it should be done so that my SYS/BIOS application starts automatically after I power on my board.

I have posted my question earlier in the DM8148 forum, from which it was asked to post here.

e2e.ti.com/.../1451056

Regards,

Debasish

over 10 years ago

0 Ashish Kapania over 10 years ago

TI__Mastermind 21645 points

Hi Debasish,

I'd recommend using uboot as the bootloader. Here's a wiki page that explains how to get and build uboot for DM814x devices: http://processors.wiki.ti.com/index.php/DM814x_AM387x_PSP_U-Boot

Once you have a uboot image, you can go through the steps on this wiki to create a BIOS binary image that uboot can load and boot:

http://processors.wiki.ti.com/index.php/SYS/BIOS_with_GCC_%28CortexA%29#How_do_I_boot_SYS.2FBIOS_using_U-Boot_.3F

I dont believe there is anything special you need to do when compiling a BIOS application to ensure it boots from SD card or SPI. Just ensure the load addresses are contiguous as the out file needs to be translated to bin format. Once you have a BIOS bin image, it can be loaded to SD card or SPI and the right commands need to be passed to uboot so it knows where to read the BIOS image from.

Hope this helps.

Best,

Ashish

0 debasish saha1 over 10 years ago in reply to Ashish Kapania

Intellectual 920 points

Hi Ashish,

Thanks for the reply. I will try it.

Regards,

Debasish

Processors

Processors forum

Running a standalone SYS/BIOS application on DM8148