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AWR1843: out of box

user5931324
Prodigy 60 points

Hi,

I am looking for pointers for address of ADC ping-pong buffers on SDK AWR18xx OOB Demo(C:\ti\mmwave_sdk_03_01_00_02\packages\ti\demo\xwr18xx\mmw).

Could you tell me the file name(.c/.h) and row number where the pointers are?

Mitsu

  • 0
    TI__Guru*** 149204 points
    Hi,

    The address of the ADC ping-pong buffer is provided in the TRM section "3.2 18xx Memory Map" see DSS_ADCBUF Description of ping/pong buffer is provided in the TRM section 13 "ADC Buffer" . Notice at the beginning of the section that "For the application software, the ADC buffer (either ping or pong) is seen as a single memory at the base addresses provided in Memory Map". This means that there are NOT different addresses for PING and PONG


    TRM - www.ti.com/.../swru520c.pdf

    In the SDK AWR18xx OOB Demo(C:\ti\mmwave_sdk_03_01_00_02\packages\ti\demo\xwr18xx\mmw) the mode "DPU_RangeProcHWA_InputMode_MAPPED" is used. Please read definition of this mode in "C:\ti\mmwave_sdk_03_01_00_02\packages\ti\datapath\dpu\rangeproc\rangeprochwa.h". This means that ADC buffer is mapped to HWA memory.

    So the address of the ADC buffer should be the input address to the HWA. The HWA SRC and DST address is defined for each paramset.

    So, in the SDK AWR18xx OOB Demo if you look at the HWA Paramset initialization, you will find the SRC address.

    Please let us know if you need more help

    thank you
    Cesar
  • 0 in reply to Cesar
    Prodigy 60 points
    Thank you for your reply.
    The answer is helpful!