I decided to go back to Zigbee.

I tried to buy dongle with 1MB Flash but it is not available at Mouser, who is a distributor of Telink products.

So, I had to buy a TLSR8258F1KET32 chip and make a board for it.

The result is that now gateway with concurrent Zigbee and BLE is working.

I have tried to get BLE scanning in adv. mode to work but it didn t work.

I had a look at previous SDK and noticed that in the file appscommonzigbee_ble_switch.c function zb_ble_switch_proc() has the following code:

if(zigbee_process == 0){
  g_bleTaskTick = clock_time();
/*

* ble task

*

* */

#if SCAN_IN_ADV_STATE

/* add scan functionality after advertising during ADV state, just for slave mode */
  do{

/* disable pm during scan */

#if PM_ENABLE
  if(blt_state == BLS_LINK_STATE_ADV){
   bls_pm_setSuspendMask (SUSPEND_DISABLE);
  }

#endif
   blt_sdk_main_loop();
  }while((blt_state == BLS_LINK_STATE_ADV) &&  blc_scan_busy_in_adv(g_bleTaskTick,2));//MY_ADV_INTERVAL*3/4


/* enable pm after scan */

#if PM_ENABLE
  bls_pm_setSuspendMask (SUSPEND_ADV | SUSPEND_CONN);

#endif


#else
  blt_sdk_main_loop();

#endif  DBG_ZIGBEE_STATUS(0x30);


#if BLE_MASTER_ROLE_ENABLE
  if(g_bleMasterHandler.updateCb){
   g_bleMasterHandler.updateCb();
  }

#endif
  r = irq_disable();

The part #if SCAN_IN_ADV_STATE/#endif is not present in the latest version 2.1.0.0 of the SDK.

I copied the part of the code between #if SCAN_IN_ADV_STATE and #endif into the new SDK:

if(CURRENT_SLOT_GET() == DUALMODE_SLOT_BLE){
  g_dualModeInfo.bleTaskTick = clock_time();

/*

* ble task

*

* */


// blt_sdk_main_loop();

#if SCAN_IN_ADV_STATE

/* add scan functionality after advertising during ADV state, just for slave mode */
  do{

/* disable pm during scan */

#if PM_ENABLE
   if(blt_state == BLS_LINK_STATE_ADV){
    bls_pm_setSuspendMask (SUSPEND_DISABLE);
   }

#endif
   blt_sdk_main_loop();
 }while((blt_state == BLS_LINK_STATE_ADV) &&  blc_scan_busy_in_adv(g_dualModeInfo.bleTaskTick,2));//MY_ADV_INTERVAL*3/4


/* enable pm after scan */

#if PM_ENABLE
 bls_pm_setSuspendMask (SUSPEND_ADV | SUSPEND_CONN);

#endif


#else
  blt_sdk_main_loop();

#endif
  DBG_ZIGBEE_STATUS(0x30);
  r = drv_disable_irq();

Now, scanning is working, but I am not sure that the code should be like this, since it has been removed from the latest SDK?

In the previous version there is: if(zigbee_process == 0){

In the last version there is: if(CURRENT_SLOT_GET() == DUALMODE_SLOT_BLE){

So there is a different way it is done.

Could someone from Telink check and advise if it is the correct way of getting scanning to work?