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TCAN4550-Q1: How to Operate TCAN4550 in standalone i.e. without debugger

Anilkumar Patil
Prodigy 90 points
Part Number: TCAN4550-Q1
Other Parts Discussed in Thread: TCAN4550

Hi Team,

Could you please tell me, how to use CC2642/TCAN4550 in standalone mode (i.e. without debugger), is there any standard way for the same...?

Currently i have flashed SW to MCU (CC2642) using TI XDS110 debugger probe, after flashing SW, disconnected the debugger and also observed CAN messages as per my requirement.

but after next "Power On Reset", I failed to observe CAN message reception and transmission, could you please suggest, why is it so...? may be over "Power On Reset", MCU clearing the flashed SW, but I think SW is flashed in ROM, not RAM, so this behavior shall not be occurred.

I am facing issue in receiving CAN message using Rx Buffer, could please tell why CAN messages are not receiving through Rx Buffers...?

also suggest how to check, buffer index in which Rx message got stored....? Kindly help me.

  • 0
    TI__Guru 72751 points

    Hi Anilkumar,

    I've assigned a CAN apps engineer to this thread. They should get back to you within 24 hours of my post.

    thanks,

    -Bobby

  • 0 in reply to BOBBY
    TI__Guru 53555 points

    Hi Anilkumar,

    Since this forum is focused on interface devices, I'll address your questions on TCAN4550. I am not an expert in our MCUs such as CC2642, so I'd recommend asking questions pertaining to this device on its designated (Bluetooth) forum. 

    Be sure you have populated the RX Buffer Configuration Register ('h10AC) to its designated start address in message RAM. Also make sure that the Rx Buffer/FIFO Element Size Configuration Register ('h10BC) has been configured for proper buffer formatting. 

    Messages are only sent the RX buffer when the messages ID (SID or XID) matches with a filter configured with the SFEC to send the message to the buffer. Have these filters been configured for the message ID you are expecting to receive?

    Are you using any of the demo code provided by TI, or is this a custom program you are using for TCAN4550? It would be helpful to know if this is based off of any of the code I'm familiar with. 

    Regards,
    Eric Schott