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LAUNCHXL-CC3235SF: Locking issue on CC3235SF Wifi processors

Mehmet Akif Özdemir
Intellectual 310 points
Part Number: LAUNCHXL-CC3235SF
Other Parts Discussed in Thread: CC3235SF

Tool/software:

Hello. Many CC3235SF processors were purchased from you. I made my own cards with them. There are people on the cards like getting a Wifi network scan rssi value. The processors hang during this scan without being bound to a certain condition. Whatcdog timer cannot solve this hang and it hangs. I tried this on your red LAUNCHXL development board and it also has this problem. What is the reason for this

  • 0
    TI__Guru 61935 points

    Hi,

    This is a very generic description.

    can you describe what hangs exactly? what is hang during scan?

    If it also happens on TI EVB, please share a code example I can review/try.

    Shlomi

  • 0 in reply to Shlomi Itzhak
    Intellectual 310 points

    First of all, the same thing happens with TI EVB.
    The problem is this. I put the device into sleep mode. And when the hhtp request comes, I wake it up. I wait with sem_wait during sleep. When the http request comes, I call sem_post. The device is reset when the sem post call comes. This does not happen when I do not use the sem post call.

    The 2nd problem is this. When the http request comes, the Wifi scan is performed and the scan data is sent. Here, the processor is locked while the scan data is received and displayed on the serial port. Even the whatcdog timer part is locked and does this every time.