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TMS320F280039C: the issue about BIOS

Xiangwei Meng
Prodigy 80 points
Part Number: TMS320F280039C
Other Parts Discussed in Thread: C2000WARE

The issue about TI BIOS

we creat the project about F280039C with the lastest version bios(bios v6.83.00.18), but we meet some issue during debug that is we can't define the cpu frequency.

we check the code in Platform.xs in bios folder, and it seems not support tms320f280039c,  so, could you help to confirm the when the valid bios can be released?

or could you tell me how to solve the issue? thank you in advance!

  • 0
    TI__Guru 54195 points

    F28003x is not supported by SYS/BIOS and there aren't currently any plans to update it to add support. There are ways you can use F28004x support on other devices like what's described here, but again, it's not really officially supported.

    Whitney

  • 0 in reply to Whitney Dewey
    TI__Guru 54195 points

    I should add specifically on the subject of SYSCLK configuration, since the clock configuration on F28003x is a little bit different than it is for F28004x and SYS/BIOS doesn’t have F28003x support, SYS/BIOS can't provide clock configuration or calculate the CPU frequency properly. You'll need to bypass the SYS/BIOS clock configuration (disable that setting in the Boot module) and instead do it in your application code, using something like the SysCtl_setClock() function used in the C2000Ware examples.

    Between this change and the platform workaround I linked to in the previous thread, I think SYS/BIOS should allow you to tell it your CPU frequency properly.

    Whitney