CC3200获取密码错误

调用sl_WlanGet获取AP参数时，SSID和SECURITY_TYPE可正确获取。但读取出的Password是错的。直接复制官方的代码也不对。

请问是什么问题？

ilength=32;
config_opt = WLAN_AP_OPT_SSID;
lRetVal=sl_WlanGet(SL_WLAN_CFG_AP_ID,&config_opt,&ilength,(unsigned char*)iSSID);
ASSERT_ON_ERROR(lRetVal);

ilength=1;
config_opt = WLAN_AP_OPT_SECURITY_TYPE;
lRetVal=sl_WlanGet(SL_WLAN_CFG_AP_ID,&config_opt,&ilength,(unsigned char*)&iType);
ASSERT_ON_ERROR(lRetVal);

ilength=64;
config_opt = WLAN_AP_OPT_PASSWORD;
lRetVal=sl_WlanGet(SL_WLAN_CFG_AP_ID,&config_opt,&ilength,(unsigned char*)iPassword);
ASSERT_ON_ERROR(lRetVal);