CC2745R10-Q1: Channel Sounding stops receiving distance after ~3000–5000 procedures on CC2745R10

Part Number: CC2745R10-Q1

Tool/software:

Hi,

We are using the CC2745R10 EVB with SimpleLink Low Power F3 SDK v9.11.00.18.
During testing with the car node and key node firmware, we found that the channel sounding procedure stops reporting distance data after approximately 3000–5000 procedures. Before that, everything works normally.

We are using the dual-antenna board and have configured the antenna settings according to the instructions provided in the TI User Guide:
TI Channel Sounding Introduction Guide

The only change we made in the Python script is in ble_device_car_node_with_distance.py, increasing the loop count:

# Set procedure params and enable the procedure multiple times
for i in range(10000): # modified from 100 to 10000
car_node.cs.set_procedure_params(cs_set_procedure_params)
time.sleep(0.1)
cs_proc_enable(
car_node,
cs_set_procedure_params["max_procedure_count"],
wait_for_remote=True,
wait_for_distance=True,
extended_results=False,
wait_for_raw_events=False,
)

Have you observed a similar issue before?
Is there any known workaround or fix for this problem?

Thanks!
Michael

  • Hello Michael, 

    I have not observed this issue, but I have not personally conducted a similar test. I have heard from others that this may be a problem. Give me until Friday (09/03) to run some tests on this SDK to verify the problem on my end. 

    Additionally, a new SDK will be releasing Friday. The SDK is v9.11.01 and will include many improvements for channel sounding. I have not seen anything related to this specific problem mentioned, but with all the fixes and updates that have been implemented, it will be worth giving the SDK a try. 

    Also, what is your end use case? 

    Thanks,
    Isaac

  • Hi Isaac,

    Thank you for your support!
    I'm looking forward to the v9.11.01 SDK release this Friday. I’ll run tests with it next week and share the results afterward.
    Our use case might be a digital key application.

    Thanks!
    Michael

  • Hello Michael, 

    Please open a new E2E thread if you observe a similar issue with the 9.11.01 SDK release! Additionally, if you have any other questions feel free to reach out over E2E! 

    Thanks,
    Isaac