AWR1642BOOST: Can QSPIFlash be accessed from DSS?

Hello Xinsi Lin,

The QSPIFlash on the AWR1642 can be accessed only from the Master R4F sub-system.  The DSS cannot access the QSPIFlash directly .

However, you can read the data from the QSPIFlash and then send the data over mailbox from MSS to the DSS.

There is already code in the MMWAVE-SDK where we custom data between MSS and DSS over mailbox.  You can use this as reference and write your code to send the data read from QSPI to the DSS.

Please refer to "MmwDemo_message_type" in "$mmwave_sdk_01_00_00_05\packages\ti\demo\xwr16xx\mmw\common\mmw_messages.h" and the associated code "$mmwave_sdk_01_00_00_05\packages\ti\demo\xwr16xx\mmw\mss\mss_main.c" and  "$mmwave_sdk_01_00_00_05\packages\ti\demo\xwr16xx\mmw\dss\dss_main.c" for your reference on how these custom message over mailbox.

Thanks,

Raghu

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