This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC1352R: Trying to understand SPI pins.

Part Number: CC1352R

Hello,

My team and I want to connect 2 SPI slave modules to the CC1352R board. From what I read the following pins are used on the MASTER side of the board:

DIO8 - MISO, DIO9 - MOSI, DIO10 - CLK, DIO15 - Board_SPI_MASTER_READY, DIO21 - Board_SPI_SLAVE_READY 

Because we need to have this module connect to 2 different devices, we need a "chip select" pin but we don't know which pin that is. Also, how do we hook up MISO wires since we have 2 outputs going into one input? 

Thank you.

  • Hello Guy,

    Any DIO Pin on the MCU can be used for SPI operation, you just need to configure it on the board and LAUNCHXL files. As for the CS it is best to use the PIN or GPIO driver to control this signal as you will have more than one sensor to control. As for the MISO/MOSI signals you just need to connect them together, the mcu should know who is talking depending on the CS state.

    Regards,
    AB