CC2640R2F 1.40.45版本的SDK 更新PHY层速率

请问TI的工程师们，1.40.45版本的SDK可以将PHY层的速率更新到125kbps吗，因为想做远距离通信，但是我现在更新1Mbps和2Mbps都是成功的就是更新较低的速率根本就没有进入HCI完成的HCI_LE_EVENT_CODE事件中。代码如下：

// Which PHY is picked?
static uint8_t phy[] = {
  HCI_PHY_1_MBPS, HCI_PHY_2_MBPS, HCI_PHY_CODED, HCI_PHY_CODED
};

if (*APPstate == GAPROLE_CONNECTED) //判断是否处于连接状态
              {
                switch(buffer[0])
                {
                  case 0:
                    phyOptions = LL_PHY_OPT_NONE;
                    break;
                  case 1:
                    phyOptions = LL_PHY_OPT_NONE;
                    break;
                  case 2:
                    phyOptions = LL_PHY_OPT_S2;
                    break;
                  case 3:
                    phyOptions = LL_PHY_OPT_S8;
                    break;
                  default:
                    phyOptions = LL_PHY_OPT_NONE;
                    break;                 }
                GAPRole_GetParameter(GAPROLE_CONNHANDLE, &connectionHandle);
                HCI_LE_SetPhyCmd(connectionHandle, LL_PHY_USE_PHY_PARAM, phy[buffer[0]], phy[buffer[0]], phyOptions);
              }

Viki Shi：

CC2640R2F 现已支持125kbps coded PHY模式，详情请看这边： e2e.ti.com/…/how-does-bluetooth-5-increase-the-achievable-range-of-a-bluetooth-low-energy-connection

Susan Yang：

建议您使用

SIMPLELINK-CC2640R2-BLE5-EVAL:
Bluetooth 5 LE software stack supporting Adv Extensions and Long Range Connections