LAUNCHXL-CC26X2R1: HCI_LE_SetDefaultPhyCmd() not honoured and doc typo?

Hi Jerome,

If I may, you are referring to fairly old documentation, and I would recommend to refer to the following doc: https://software-dl.ti.com/simplelink/esd/simplelink_cc13xx_cc26xx_sdk/7.10.01.24/exports/docs/ble5stack/ble_user_guide/html/ble-stack-5.x/phy.html

In addition, you can find the newest SDK version here: https://www.ti.com/tool/download/SIMPLELINK-LOWPOWER-F2-SDK

When it comes to your initial question (i.e. force the CC2642R to use either the 1M or the Coded PHYs), the best approach is actually to "tell" the other devices the 2M PHY is not supported. Otherwise, other devices may want to use the LE 2M PHY and you will be forced to switch to it as you claim to support it.
Here is a way to disable support for the LE 2M PHY:

• Go to the init function of your application and add HCI_LE_ReadLocalSupportedFeaturesCmd(); to the very end of it.
• Go to the processCmdCompleteEvt function of your application, and add the following case to the switch statement
  

  case HCI_LE_READ_LOCAL_SUPPORTED_FEATURES:
      {
          if (pktStatus == SUCCESS)
          {
            uint8_t featSet[8];
  
            // Get current feature set from received event (bits 1-9)
            // of the returned data
            memcpy( featSet, &pMsg->pReturnParam[1], 8 );
  
            // Clear relevant bit(s) of byte 1 
            CLR_FEATURE_FLAG( featSet[1], LL_FEATURE_2M_PHY );
            // CLR_FEATURE_FLAG( featSet[1], LL_FEATURE_CODED_PHY ); // This one is only if you want to disable LE Coded PHYs too
  
            // Update controller with modified features
            HCI_EXT_SetLocalSupportedFeaturesCmd( featSet );
        }
      }
      break;

I hope this will help.

Best regards,