RTOS/CC2640: No restart after hard reset watchdog timer

Part Number:CC2640

Tool/software: TI-RTOS

Hi,

I've implemented a watchdog timer to perform a hard reset after it triggers. The watchdog callback is called and does perform a hard reset but the system is not booting afterwards. 

BLE SDK version 2.2.1

TI_RTOS version 2_20_01_08 (with the watchdog bug patched, interrupt typed changed to WATCH_DOG_TYPE_INT in WatchdogCC26xx.c) 

void multi_role_watchdogCallback(UArg handle)
{
    Watchdog_clear(_watchdogHandle);
    // Perform the equivalent of a PIN Reset (hard reset).
    // The cc26xx system has not been design to handle soft reset.
    // Making a soft reset can make the system unstable.
    // All soft reset needs to be replace by Hard reset.
    
    HAL_SYSTEM_RESET();
}

Watchdog_init();
Watchdog_Params params;

Watchdog_Params_init(&params);
params.resetMode   = Watchdog_RESET_OFF;
params.callbackFxn = multi_role_watchdogCallback;
params.debugStallMode = Watchdog_DEBUG_STALL_ON;
_watchdogHandle = Watchdog_open(CC2650_WATCHDOG0, &params);
uint32_t watchdogTicks = Watchdog_convertMsToTicks(_watchdogHandle, 15000);
Watchdog_setReload(_watchdogHandle, watchdogTicks);