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SYS/BIOS in field upgrade

Jerome Baron
Intellectual 810 points

Other Parts Discussed in Thread: AM1808

Hi everyone,

 

I want to use SYS/BIOS on an ARM9 (AM1808) and I want to know if its in field upgradable.

 

I want to be able to send data through the UART and upgrade its code. Is it something easily done?

 

Regards,

Jerome

  • 0
    TI__Mastermind 20805 points

    Jerome --

    Unfortunately, we don't have any built-in support for this.   I think you'd have to write this code yourself.    I don't think there's anything special about BIOS that would preclude this, but you would have to write this loader and monitor and reserve memory in your system for this.  BIOS does not support patching individual object files or functions.  BIOS apps are currently one big .out file (application and OS all rolled into single app). I think you need to figure out how to branch to your loader/monitor, and then load new .out file over UART, and then branch to the entry point of the new .out file.

    Regards,
    -Karl-