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I have some question about PCI boot mode

Do Hyoung KIM
Prodigy 50 points

hello everyone

I have some question about PCI boot mode on C6455 dsp core.

1. how to download a boot image from PC application ( windows) to DSP board by PCI interface.

      -> I 'll write directly  a *.bin file that maked by DSP Boot Assist Tool  to L2SDRAM(0x0080 0000) to use PC application. is it right  method ?

2. how to access the L2SDRAM address

     -> I know that the PC application can acess the DSP memory areas by  PCIBARx(PCI base address), but PCI auto-initialization is set only Vendor ID, class code, subsys vendor ID, Interrupt pin .  how can I set the PCI Windows Config ( PCIBARx, PCIBARxMSK, PCIBARxTRL) registers?

thank you

dhkim

  • 0
    Prodigy 50 points

     

    hello everyone

    I loaded the *.h file that coverted a COFF file to Boot Image with the DSP Boot Assist Tool at L2SDRAM.  and I checked a L2SDRAM memory. it completly download .

    but, how to start DSP and how to chage PC(Program Count) . the image  entry point  doesn't start at 0x00800000(L2SDRAM start address), so tell about it to DSP.

    could you please tell me ....

     

    thank you

     

     

     

  • 0 in reply to Do Hyoung KIM
    TI__Guru* 84110 points

    Please take a look at the app note "TMS320C6000 Tools: Vector Table and Boot ROM Creation" spra544. It explains how to create a vector table in a specific location in memory. This is what you need to do, create a vector table with a branch to your actual entry point, and place that vector table at 0x00800000 in the application that gets loaded via PCI.

     

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