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IWR1443: How to access EDMA register in CCS?

Part Number: IWR1443

Hi,

After I ran demo, I want to check the EDMA register in CCS. But I can't see most of the registers. Would you pls kindly advise what is missed?

Thanks,

Chris

  • Hello Chris,
    Are you trying to access these from the R4F or the DSP core ?

    Regards,
    Vivek
  • In reply to Vivek Dham:

    Vivek,

    IWR1443 only has R4F, no DSP. So the access is from R4F.

    Thanks,

    Chris

  • Hi Chris,

    The address region in your snapshot belongs to DSS_TPCC instance. Please check the Register map for EDMA  TPCC to see the valid registers for this module. 

    Valid address are at offset of 0x0, 0x,4, 0x200.. and so on.

    EDMA chapter can be found in Technical Reference Manual on product page of  IWR1443

    Thank you,

    Vaibhav

  • In reply to Vaibhav Mahimkar:

    Vaibhav,

    In Table 1-1. Master Subsystem, Cortex-R4F Memory Map of TRM (swru522.pdf), I can only found dss_tpcc address for tpcc. If the address of dss_tpcc is not the right address for R4F to access EDMA tpcc register. Would you pls kindly advise the right address?

    Thanks,

    Thanks,

    Chris

  • In reply to Chris Meng:

    Chris,

    Address of DSS_TPCC in CCS view is right. So you are looking at the right location.

    However that location onwards you will only see the valid registers populated and accessible. I tried to add a snapshot in last post, seems like it did not show up.

    I will try it below again:

    Valid offsets addresses to look for at DSS_TPCC's base address   are in Table 11-19 : (including a snapshot below hope it shows up)

    Vaibhav

  • In reply to Vaibhav Mahimkar:

  • In reply to Vaibhav Mahimkar:

    Vaibhav,

    I got it. Not all memory related to TPCC are valid.

    Thanks,

    Thanks,

    Chris

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