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CC1312R7: Uart2 Recive Performance of CC1312R7

peter Kwon
Prodigy 70 points
Part Number: CC1312R7

Tool/software:

Hi.
I have a question about Uart's receiving performance degradation when using Uart and RF of TICC1312R7.

We are trying to run the system Rf thread and Uart2 thread at the same time, so Uart2 is connected to STMF4.
The Baudrate of Uart2 is set to 921600 to send and receive 260 bytes of data.
If you send 260 bytes from STMF4, CC1312R7 should receive it, but the received data was broken. As I debugged this, I confirmed that CC1312R7 receives normal data when the Uart Send cycle in STMF4 is 500mS or higher, and I want to change the 500mS cycle to 50mS cycle.
Please let me know where we need to check.

Thank you for reading it.

  • 0
    TI__Guru* 81751 points

    Hi Peter,

    On the CC1312R7, the radio is running on a separate core (M0), so you should be able to receive on RF and UART simultaneously. However when the received packet is delivered from the radio to the M4, the processor needs to handle it.

    I'm not sure I understand what you mean by "send cycle". You want to send one packet (260 bytes) every 50 ms?

    Cheers,

    Marie H