CC2642R: BLE Issues in FreeRTOS-Based Development with the CC2642

Hello TI Technical Support Engineers,

 

We are using the CC2642R chip configured as a BLE Central device. After integrating FreeRTOS into our project, we need to continuously acquire the RSSI of surrounding Bluetooth devices in a non‑connected manner.

 

However, after the program runs for a period of time, it can no longer enter the SC_EVT_ADV_REPORT branch inside the SimpleCentral_processAppMsg function. Eventually, it also fails to enter the SimpleCentral_scanCb callback. Debug breakpoints cannot be triggered in these two locations. The rest of the SimpleCentral_processAppMsg function still executes normally.
Our current BLE parameters are as follows: 

// Default PHY for scanning
#define DEFAULT_SCAN_PHY                        SCAN_PRIM_PHY_1M

//Default Scan type (Active/Passive)
#define DEFAULT_SCAN_TYPE                       SCAN_TYPE_PASSIVE

// Default scan interval (in 625 us ticks)
#define DEFAULT_SCAN_INTERVAL                   320

// Default scan window   (in 625 us ticks)
#define DEFAULT_SCAN_WINDOW                     160

// Default scan duration in 10 ms
#define DEFAULT_SCAN_DURATION                   100

// Advertising report fields to keep in the list
#define ADV_RPT_FIELDS                          (SCAN_ADVRPT_FLD_ADDRESS | SCAN_ADVRPT_FLD_ADDRTYPE)

// Scanner Duplicate Filter
#define SCANNER_DUPLICATE_FILTER                 SCAN_FLT_DUP_DISABLE

// TRUE to filter discovery results on desired service UUID
#define DEFAULT_DEV_DISC_BY_SVC_UUID            false