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CCS/TMS320F280049C: HM10 Bluetooth module interface on SCI_B of F280049C but it is not working.

Sourabh Patil
Intellectual 395 points

Part Number: TMS320F280049C

Tool/software: Code Composer Studio

Hello,

I am sourabh working on HM10 BT module interface with F280049c board. I am successfully completed the BT communication on SCI_A of F280049c. But i want to use SCI_B port for BT communication. 

But SCI_B is not working. If any one have example cod to work on SCI_B of f280049c then shear with me.

Thanking You,

Sourabh Patil

  • 0
    TI__Guru 60865 points

    Hi Sourabh,

    The main things to double check here are:

    • SCI-B will come out on different pins
      • Are you physically connected to the new pins?
      • Do you have TX and RX correct or swapped? (TX and RX order may be different for different pinmux options)
      • Is the GPIO muxing  correct? (the SCI pins may not be at the same mux positions for different SCIs or mux placements)
    • SCI software changes for different module
      • Have you changed all the bitfield or driverlib references to use SCI-B instead of SCI-A?
      • Have you changed the function names and calls to make sense with the new SCI letter?
    • The new SCI will have a different interrupt mapping in the PIE
      • Is the correct interrupt enabled in the PIE?
      • Is the ISR being mapped to the right vector in the table?
      • Has the ISR been updated to use the new SCI module bitfield or driverlib references?
      • Are you acknowledging the new flags in the SCI ISR?