CC3100MOD: Issue with Wifi 6 equipment

Hi,

Thanks for reaching out regarding this issue/behavior.

Few questions regarding this scenario:

1. Can you share sniffer log along with network processor log and mac log?

2. Are you able to disable low power mode (LPDS) on some devices to see if they stay connected?

3.Are there any stations/devices that stays connected without disconnecting?

1. We have asked for logs but have not received any as of yet.

2. We do not use a low power mode, we use a power mode of always on.

3. I was told that the when turning on we often get CPU exceptions at that point.  But we do not get an exception, then the Wifi will connect/disconnect, but eventually will stay connected.

3. What type of CPU exceptions? Can you give some details on this? Where do you observe these exceptions? 

On startup we often, but not always, get Precise Bus Faults.  The faulted address is always 0xffffffff, and the PC counter always is in BIOS.obj (.text:ti_sysbios_knl_Semaphore_post__E).  The link register address varies depending on our code version.  Have seen it point to .text:ti_uia_loggers_LoggerStopMode_write2__E and .text:osi_LockObjUnlock. 

Is it correct to say that when the device doesn't encounter the Precise Bus Fault exception, WiFi stays connected? 

No.  I believe only when powering on our device we often get the Bus Faults, but not always.  If we do not get the Bus Fault on power on, then I been told the Wifi will connect and disconnect some, then eventually the Wifi will remain connected.

Hi Stephen,

Regarding the exception, can you check the porting on the driver side? As a test, can you disable the logging to narrow down the area/source of the exception?  This would help to identify, if the hard fault is caused by functionality or just logging? 

Any update on the logs?