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DM6437 PCI master single write trouble

Guy
Intellectual 290 points

With the example in the system folder, the read works ok but the write doesn't work.

Any hits or somethings to check ?

I use pspdrivers 1.10.01.

I am on my board and I am able to read and write the with another master.

 

Guy

  • TI__Mastermind 41665 points

    The PCI driver example should work properly, though there are a number of conditions for it to work such as having a Linux host running kernel 2.6.9. The PSP User's Guide, as well as the PCI sample source code contain instructions for ensuring that the sample works.

    You may also want to check the dip switches on your EVM to make sure the device is in the proper mode, the FAQ from Spectrum Digital describes the dip switch setting for using PCI (SW1 = 10001000, SW2 = 0001).

  • in reply to Bernie Thompson TI
    Intellectual 290 points

    Trouble comes from our own desing.

    PCI Req/Grant shared between DSP and FPGA.

    Unwanted FPGA slave answer and contension on PCI BE.

    Must go with one Req/Grant by master.

    Just unplug FPGA slave Req/Grant pins.

     

    Thank's

     

    Guy