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Original question:

Compiler/IWR6843: Send data from IWR6843 to PC/Raspberry Pi via SPI or I2C

IWR6843: SPI transfer: Sensor in Slave to Raspberry Pi in Master mode

Tosin Babarinde
Intellectual 435 points
Part Number: IWR6843


Hi,

I realised that the SPI transfer is designed to have data flow from Master to Slave. While Raspberry Pi comes as only a Master SPI device, and there are slave modes for the Radar sensor to have, how does the data flow happen? How can I implement a slave to master data transfer?

I am yet to look into the .c files, as I am quite new to this but will really want to know what to 'look' for if I get to do so.

  • 0
    TI__Genius 17265 points

    Hi,

    Please refer to the SPI driver from the mmWave SDK. You can take a look at the test code which can be found at <mmWave SDK>\packages\ti\drivers\spi\test\xwr68xx . You can then add a similar implementation of this code to your project.

    Best Regards,
    Alec