Renesas UM-WI-038 User manual

User Manual
DA16x00 Getting Started with AT-
Command for AWS-IoT
UM-WI-038
Abstract
The focus of this document is to easily introduce the AT-Command for AWS IoT. This is a reference
design which includes the AWS IoT Application. This reference design provides the user an
experience using the AWS IoT Android Application.

UM-WI-038
DA16x00 Getting Started with AT-Command for
AWS-IoT
User Manual
Revision 1.1
13-Jan-2022
CFR0012
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© 2022 Renesas Electronics
Contents
Abstract................................................................................................................................................ 1
Contents............................................................................................................................................... 2
Figures.................................................................................................................................................. 3
Tables ................................................................................................................................................... 3
1Abstract.......................................................................................................................................... 4
2Terms and Definitions................................................................................................................... 4
3References..................................................................................................................................... 4
4What is AT-Command for AWS-IoT............................................................................................. 5
5Release Package ........................................................................................................................... 5
6Demonstration Hardware Description......................................................................................... 6
6.1 Configuring the Hardware..................................................................................................... 7
6.1.1 UART Connection.................................................................................................. 7
6.1.2 DA16x00 Wake Up Connection............................................................................. 9
6.1.3 External Host Wake Up Connection...................................................................... 9
7Software Setting Guide............................................................................................................... 11
7.1 The DA16x00 ...................................................................................................................... 11
7.1.1 How to Connect with Tera Term..........................................................................11
7.1.2 How to Download a Firmware Image to the DA16x00 ........................................ 12
7.1.3 Thing Name for Testing....................................................................................... 14
7.1.4 Stand-Alone Mode...............................................................................................15
7.2 MCU Setting........................................................................................................................ 15
8Mobile App................................................................................................................................... 21
8.1 Overview ............................................................................................................................. 21
8.2 Open Door...........................................................................................................................22
8.3 Close Door .......................................................................................................................... 24
8.4 Android Application UI......................................................................................................... 27
Appendix A AWS IoT AT-Command List......................................................................................... 29
A.1 Operating Modes................................................................................................................. 29
A.1.1 Setting Mode........................................................................................................29
A.1.2 Provisioning Mode ............................................................................................... 29
A.1.3 Communication Mode.......................................................................................... 30
A.2 How to Configure Topic to Publish, Subscribe and Shadow ..............................................30
A.2.1 Configure Topics..................................................................................................30
A.3 AT-CMD List........................................................................................................................31
A.3.1 Basic Set..............................................................................................................31
A.3.2 TLS ...................................................................................................................... 32
A.3.3 PIN MUX.............................................................................................................. 33
A.3.4 Configuration Data as Topics .............................................................................. 34
A.3.5 Command –MCU to DA16x00............................................................................34
A.3.6 Command –DA16x00 to MCU............................................................................35

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DA16x00 Getting Started with AT-Command for
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User Manual
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A.3.7 DA16x00 Status –DA16x00 to MCU...................................................................35
Revision History ................................................................................................................................ 37
Figures
Figure 1: Overview of AT-CMD with AWS-IOT ..................................................................................... 5
Figure 2: Hardware Configuration ......................................................................................................... 6
Figure 3: Pin Connection....................................................................................................................... 7
Figure 4: Default UART HW Connection............................................................................................... 8
Figure 5: User Example of Custom UART1 HW Connection................................................................ 8
Figure 6: DA16x00 Wake Up HW Connection ...................................................................................... 9
Figure 7: Default Wake Up Pin HW Connection.................................................................................... 9
Figure 8: User Example for External Host Wake Up Pin HW Connection .......................................... 10
Figure 9: Tera Term............................................................................................................................. 11
Figure 10: Serial Port Setup................................................................................................................ 11
Figure 11: DA16x00 Image Download ................................................................................................ 12
Figure 12: Reset Button....................................................................................................................... 13
Figure 13: Script File for Configuration................................................................................................14
Figure 14: CubeIDE Project File.......................................................................................................... 16
Figure 15: Thing Name in MCU Source Code..................................................................................... 16
Figure 16: Build Project....................................................................................................................... 16
Figure 17: Debug Configurations Menu ..............................................................................................17
Figure 18: Set Debug Configurations..................................................................................................17
Figure 19: Set Perspective Switch ...................................................................................................... 18
Figure 20: Block Diagram for Opening a Door.................................................................................... 22
Figure 21: Door Opening Operation....................................................................................................22
Figure 22: Door Opened Status on DA16x00 Console .......................................................................23
Figure 23: Block Diagram for Closing a Door...................................................................................... 24
Figure 24: Door Closing Operation......................................................................................................25
Figure 25: Door Closed Status on DA16x00 Console......................................................................... 26
Figure 26: Android Application Screenshots ....................................................................................... 27
Figure 27: Setting Mode ...................................................................................................................... 29
Figure 28: Provisioning Mode.............................................................................................................. 30
Figure 29: Communication Mode ........................................................................................................ 30
Figure 30: Communication from MCU to Phone ................................................................................. 31
Tables
Table 1: Serial Port Configuration Values............................................................................................. 7
Table 2: UART1 Pin Configuration........................................................................................................ 8
Table 3: GPIO Pin Configuration.........................................................................................................10
Table 4: Configuration of the Topics ................................................................................................... 31
Table 5: The Basic set of MCU to DA16x00........................................................................................31
Table 6: TLS from MCU to DA16x00...................................................................................................32
Table 7: The PIN MUX from MCU to DA16x00...................................................................................33
Table 8: Configuration Data from MCU to DA16x00........................................................................... 34
Table 9: Command of MCU to DA16x00............................................................................................. 34
Table 10: Command of DA16x00 to MCU........................................................................................... 35
Table 11: Status from DA16x00 to MCU.............................................................................................35

UM-WI-038
DA16x00 Getting Started with AT-Command for
AWS-IoT
User Manual
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© 2022 Renesas Electronics
1 Abstract
The DA16x00 AT-Command for AWS-IoT helps IoT designers and engineers accelerate the
development of IoT applications and solutions. This guide introduces the DA16x00 AT-Command for
AWS-IoT and describes the setup of the hardware development environment, the installation of the
required software, and the downloading and running of example applications using the DA16x00
EVB and STM32 Nucleo-64 board.
2 Terms and Definitions
AP Access Point
ADB Android Debug Bridge
API Application Programming Interface
AWS Amazon Web Services
CFG CONFIGURE
CMD COMMAND
DPM Dynamic Power Management
DTIM Delivery Traffic Indication Map
IoT Internet of Things
MCU Micro-Controller Unit
OTA Over-The-Air
RTC Real Time Clock
SDK Software Development Kit
TIM Traffic Indication MAP
TSL Transport Layer Security
3 References
[1] UM-WI-017, DA16200 AWS IoT Server Setup, Dialog Semiconductor
[2] UM-WI-056, DA16200 DA16600 FreeRTOS Getting Started Guide, Dialog Semiconductor
[3] UM-WI-042, DA16200 Provisioning the Mobile App, Dialog Semiconductor
[4] UM-WI-044, DA16600 Provisioning the Mobile App, Dialog Semiconductor

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4 What is AT-Command for AWS-IoT
AT-Command for AWS-IOT is a solution developed for the DA16x00 Wi-Fi device and modules that
provides connectivity between a MCU and a Mobile phone through an AWS-IOT server using the AT-
Command interface that can easily and quickly go to mass production (see Figure 1).
Figure 1: Overview of AT-CMD with AWS-IOT
5 Release Package
The contents of the AT-Command for AWS IoT package is as follows:
○\DA16x00
–Firmware images for the DA16x00 Wi-Fi devices
–Tera Term script for downloading the firmware images to a DA16x00 Wi-Fi device
–Example Tera Term scripts for demonstrating AT-Command for AWS IoT using only a PC
and the DA16x00 EVK
○\doc
–Getting Stared with AT-Command for AWS IoT
•Introduces the DA16x00 AT-Command for AWS IoT and describes
how to setup the development environment and test the examples.
•Describes how to connect an external host to the DA16x00 EVK for
using the AT-Command for AWS IoT.
•Describes the AT-Command for AWS IoT command list.
○\MCU
–Sample project based on the STM32 development environment for demonstrating how to
use the AT-Command for AWS IoT

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6 Demonstration Hardware Description
As shown in Figure 2, the demonstration hardware for the DA16x00 AT-Command for AWS IoT
consists of:
- DA16x00 EVK
- STM32 Nucleo-64 board
- Windows laptop or PC
The DA16x00 AT-Command for AWS IoT requires two UART ports:
- UART0 is used to download firmware and to log output.
- UART1 or UART2 is used to communicate AT commands and responses between the MCU
and the DA16x00.
Additionally, two other connections are required between the MCU and the DA16x00:
- GPIO from the MCU to the DA16x00 to wake up the DA16x00 from DPM mode.
- GPIO from the DA16x00 to the MCU to wake up the MCU if it is in sleep mode.
Figure 2: Hardware Configuration
The pin connections between the DA16x00 EVK and the STM32 Nucleo-64 board are shown in
Figure 3.

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Figure 3: Pin Connection
6.1 Configuring the Hardware
This section describes how to connect an external processor system, called the ‘External Host’ in this
section, to the DA16x00 EVK via hard wires, and use the UART interface for the AT+CMD protocol.
There are three connections required:
●UART connection
●DA16x00 wake up connection from DPM
●External Host wake up connection if a power saving mode is used
This section also includes the “AT Command” for use with the External Host.
6.1.1 UART Connection
The default UART1 (DA16200 EVK) or UART2 (DA16600 EVK) configurations are shown in Table 1.
Table 1: Serial Port Configuration Values
Settings
Value
Baud Rate
115200
Data Bits
8
Parity
None
Stop Bits
1
Flow Control
(HW/SW)
None
6.1.1.1 Default UART Pin Connection
The DA16200 EVK uses GPIOA_4 for UART1 TX and GPIOA_5 for UART1 RX by default.
The DA16600 EVK uses GPIOC_6 for UART2 TX and GPIOC_7 for UART2 RX by default.
The RX, TX and GND signals of the External Host and the DA16x00 must be connected as shown in
Figure 4.

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Figure 4: Default UART HW Connection
6.1.1.2 User UART Pin Connection Sample for the DA16200 EVK
If required, an AT+CMD can be used to change the pin connection for UART1 in accordance with the
Pin Mux Configuration as shown in Figure 5.
For example, the following AT+CMD can be used to change the Pin Mux configuration to use
GPIOA_2 for UART1 TX and GPIOA_3 for UART1 RX:
AT+AWS=SET NV_PIN_BMUX BMUX_UART1d // GPIOA_2 and GPIOA_3 for UART1
Figure 5: User Example of Custom UART1 HW Connection
Table 2: UART1 Pin Configuration
PIN Mux
GPIO
Signal Name
PIN_AMUX
GPIOA_0
TX
GPIOA_1
RX
PIN_BMUX
GPIOA_2
TX
GPIOA_3
RX
PIN_CMUX
GPIOA_4
TX
GPIOA_5
RX
PIN_DMUX
GPIOA_6
TX

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PIN Mux
GPIO
Signal Name
GPIOA_7
RX
6.1.2 DA16x00 Wake Up Connection
The DA16x00 has a maximum power saving mode called 'DPM'. When the DA16x00 is configured in
DPM mode, the External Host must wake up the DA16x00 before it can send or receive data. The
External Host can trigger a wakeup event by connecting a GPIO pin to the RTC_WAKE_UP2 pin of
DA16x00 EVK. A wakeup event is triggered when the GPIO Pin transitions from Low to High and
then back to Low.
Figure 6: DA16x00 Wake Up HW Connection
6.1.3 External Host Wake Up Connection
In a low power scenario, the External Host may be in sleep mode to save power. In this case, the
DA16x00 requires a connection to the External Host to trigger a wake up from sleep mode. If the
External Host does not use the power save mode, then this connection is not required.
6.1.3.1 Default External Host Wake Up Pin Connection
By default the DA162x0 EVK uses pin GPIOA_11 to wake up an External Host (Figure 7). The
AT+CMDs to configure the External Host wake up pin are as follows:
AT+AWS SET APP_MCU_WKAEUP_PORT GPIO_UNIT_A // GPIO_A port
AT+AWS SET APP_MCU_WKAEUP_PIN GPIO_PIN11 // GPIO_11
Figure 7: Default Wake Up Pin HW Connection

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6.1.3.2 External Host Wake Up Pin Configuration example for DA16200 EVK
On the DA16200 EVK, GPIOA_0~ GPIOA_11 and GPIOC_6 ~ GPIOC_8 can be used as an External
Host wake up pin.
To avoid duplication, assign the External Host wake up pin to a GPIO pin that is available. Table 3
shows the GPIO pin configuration information.
For example, to use GPIOC_6 of the DA16200 EVK for the External Host wake up pin, set the GPIO
port and the GPIO pin using the following AT+CMDs:
AT+AWS SET APP_MCU_WKAEUP_PORT GPIO_UNIT_C // GPIO_C port
AT+AWS SET APP_MCU_WKAEUP_PIN GPIO_PIN6 // GPIO_6
Figure 8: User Example for External Host Wake Up Pin HW Connection
Table 3: GPIO Pin Configuration
Port
PIN Mux
GPIO
GPIO_UNIT_A
PIN_AMUX
GPIOA_0
GPIOA_1
PIN_BMUX
GPIOA_2
GPIOA_3
PIN_CMUX
GPIOA_4
GPIOA_5
PIN_DMUX
GPIOA_6
GPIOA_7
PIN_EMUX
GPIOA_8
GPIOA_9
PIN_FMUX
GPIOA_10
GPIOA_11
GPIO_UNIT_C
PIN_UMUX
GPIOC_6
GPIOC_7
GPIOC_8

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7 Software Setting Guide
7.1 The DA16x00
A serial communication tool such as “Tera Term” is required to connect the laptop/PC to the
DA16x00 to download the firmware images and for monitoring the debug logs.
Tera Term link is https://ttssh2.osdn.jp/
7.1.1 How to Connect with Tera Term
Procedure:
1. Locate and connect the serial port on the PC.
Figure 9: Tera Term
2. Select a baud-rate. The default value for DA16x00 is 230400.
Figure 10: Serial Port Setup

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3. After connecting to the DA16x00 with "Tera Term", check for the command prompt as shown
below.
******************************************************
* DA16200 SDK Information
* ---------------------------------------------------
*
* - CPU Type : Cortex-M4 (120MHz)
* - OS Type : FreeRTOS 10.4.3
* - Serial Flash : 4 MB
* - SDK Version : V3.2.0.0 GEN
* - F/W Version : FRTOS-GEN01-01-03339ce3d-002291
* - F/W Build Time : Nov 29 2021 16:06:16
* - Boot Index : 0
*
******************************************************
Not define feature and set Default EVK
EVK Doorlock or Default EVK (current board=0)
System Mode : Station Only (0)
>>> DA16x Supp Ver2.7 - 2020_07
>>> MAC address (sta0) : d4:3d:39:11:5e:72
>>> sta0 interface add OK
>>> Start STA mode...
>>> UART1 : Clock=80000000, BaudRate=115200
>>> UART1 : DMA Enabled ...
[reg_user_atcmd_help_cb] Start AT Command (UART1)
[UART ready notification]
[/DA16200] #
7.1.2 How to Download a Firmware Image to the DA16x00
Procedure
Note 1 There are two types of DA16x00 firmware images in the DA16x00\img\ folder: DA16x00_FBOOT and
DA16x00_FRTOS.
1. The firmware images can be downloaded to the DA16x00 by selecting Control > Marco >
da16x00_*.ttl script in the DA16x00\img\ folder.
Figure 11: DA16x00 Image Download

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2. A factory reset is required to enter the AWS-IoT Configuration Setting mode. This can be done by
pushing the “Factory_RST” button for 5 seconds as shown in Figure 12.
Figure 12: Reset Button
RTC switched to XTAL5 seconds
Factory reset ready.
Factory Reseting....
DA16200 concurrent factory reset AP mode = 1 ("AP_ONLY")....
....[app_set_customer_ap_configure] set AP config mode = 0
apps_reboot_ap_mode Customer configuration ...
.
default_ssid = "Dialog_DA16200" ..., ap_config_param->ssid_name
PW = 1234567890
PW = 1234567890 completed
.
apps_reboot_ap_mode IPADDR_CUSTOMER...
....
apps_reboot_ap_mode customer_dhcpd_flag == DHCPD_CUSTOMER..
......
OK
DA16x00 is now ready for AWS-IOT Configuration Setting mode.

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Soft-AP is Ready (d4:3d:39:11:5e:73)
>>> UART1 : Clock=80000000, BaudRate=115200
>>> UART1 : DMA Enabled ...
[reg_user_atcmd_help_cb] Start AT Command (UART1)
[UART ready notification]
===========================================
[ AWS-IOT AT-COMMAND ]
[ Ver. 21.06 , 202106171700 , eoh ]
============================================
default set to mcu_wakeup_port=0, mcu_wakeup_pin=0x800
Root CA: X
Certificate: X
Private Key: X
Not ready Cert for AWS service ...
invalid aws feature...can't start AWS thread...check again
.. UART ready
7.1.3 Thing Name for Testing
A unique device id called “Thing name” is required for testing on the provided AWS IoT reference
server.
Note 2 The required “Thing name”can be requested from a Field Application Engineering (FAE). For more
information to create and set up an AWS IoT own server, please refer to the UM-WI-017-User-
Manual-DA16200_AWS-IoT-Server-Setup [1].
Set the “Thing name” in the MCU source code or set it in the provided scripts.
The scripts are in the SDK at the following location:
\DA16x00\script\doorlock.ttl
or
\DA16x00\script\sensor.ttl.
Figure 13: Script File for Configuration

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For MCU source code, it will be at \MCU\STM_32\Stm32Cube_atcmd\Core\Src\at_cmd.c.
#define MAX_RETRY_SEND_COUNT 10
/* AWS features, configurations, and certification keys */
const char* cmd_set_cfg[MAX_CFG_NUM] =
{
"\r\nAT+AWS SET APP_BOARD_FEATURE EVK\r\n",
"\r\nAT+AWS SET APP_THINGNAME FAE-DOORLOCK-1\r\n",
"\r\nAT+AWS SET AWS_BROKER a1kzdt4nun8bnh-ats.iot.ap-northeast-2.amazonaws.com\r\n",
"\r\nAT+AWS SET AWS_LPORT 1883\r\n",
"\r\nAT+AWS SET AWS_SUBTOPIC /AppControl\r\n",
"\r\nAT+AWS SET AWS_PUBTOPIC /DeviceControl\r\n",
"\r\nAT+AWS CFG 0 app_door 1 2\r\n", // mcu sub. str
"\r\nAT+AWS CFG 1 mcu_door 1 0\r\n", // mcu pub. str
"\r\nAT+AWS CFG 2 app_window 1 2\r\n", // mcu sub. str
"\r\nAT+AWS CFG 3 mcu_window 1 0\r\n", // mcu pub. str
"\r\nAT+AWS CFG 4 battery 0 1\r\n", // shadow int
"\r\nAT+AWS CFG 5 temp 2 1\r\n", // shadow float
"\r\nAT+AWS CFG 6 doorStat 1 1\r\n", // shadow str
"\r\nAT+AWS CFG 7 windowStat 1 1\r\n", // shadow str
"\r\nAT+AWS CFG 8 app_shadow 1 2\r\n", // mcu sub. str
"\r\nAT+AWS CFG 9 mcu_shadow 1 0\r\n", // mcu pub. str
"\r\nAT+AWS SET SLEEP_MODE 3\r\n",
"\r\nAT+AWS SET USE_DPM 1\r\n",
"\r\nAT+AWS SET RTC_TIME 1740\r\n",
"\r\nAT+AWS SET DPM_KEEP_ALIVE 30000\r\n",
"\r\nAT+AWS SET USE_WAKE_UP 0\r\n",
"\r\nAT+AWS SET TIM_WAKE_UP 10\r\n",
"\r\nAT+AWS SET APP_MCU_WKAEUP_PORT GPIO_UNIT_A\r\n", // GPIO_UNIT_A
"\r\nAT+AWS SET APP_MCU_WKAEUP_PIN GPIO_PIN11\r\n" // GPIO_PIN11
};
AT+AWS SET APP_MCU_WKAEUP_PORT GPIO_UNIT_C // GPIO_C port
AT+AWS SET APP_MCU_WKAEUP_PIN GPIO_PIN6 // GPIO_6
7.1.4 Stand-Alone Mode
If an external host MCU is not available, the AWS-IoT commands can be tested with one of the
sample scripts provided in the SDK.
Door-lock for two-way communication: \DA16x00\script\doorlock.ttl.
Sensor for one-way communication: \DA16x00\script\sensor.ttl.
7.2 MCU Setting
Requirements:
CubeIDE, Free IDE for referencing, and testing MCU source code.
CubeIDE link: https://www.st.com/en/development-tools/stm32cubeide.html
Procedure
1. After installing CubeIDE, double-click to open the .project file at
\MCU\STM_32\Stm32Cube_atcmd\ (see Figure 14).

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Figure 14: CubeIDE Project File
2. Use the "Thing name" received from the FAE to test without setting up a server.
3. Change the "Thing name" to the received name (see Figure 15).
Figure 15: Thing Name in MCU Source Code
4. Select project > Build all to build (see Figure 16).
Figure 16: Build Project

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Note 3 When connecting to STM32 MCU for the first time do step 5~7 for setting up the Debug Configuration.
5. Select Debug Configurations to set the connection to the STM32 MCU (see Figure 17).
Figure 17: Debug Configurations Menu
6. Selecting the debug tab will open the window shown in Figure 18. Change the configuration as
shown and then select the “Apply” and “Debug”buttons.
Figure 18: Set Debug Configurations

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7. Click "NO" if the pop-up to confirm “perspective switch” appears, as shown in Figure 19.
Figure 19: Set Perspective Switch
8. When clicking the “Debug”icon on the Tool bar, the MCU image will be downloaded to the
device.
9. The following shows the DA16x00 setting mode ready status console after a factory mode reset.
Soft-AP is Ready (d4:3d:39:11:5e:73)
>>> UART1 : Clock=80000000, BaudRate=115200
>>> UART1 : DMA Enabled ...
[reg_user_atcmd_help_cb] Start AT Command (UART1)
[UART ready notification]
===========================================
[ AWS-IOT AT-COMMAND ]
[ Ver. 21.06 , 202106171700 , eoh ]
============================================
default set to mcu_wakeup_port=0, mcu_wakeup_pin=0x800
Root CA: X
Certificate: X
Private Key: X
Not ready Cert for AWS service ...
invalid aws feature...can't start AWS thread...check again
.. UART ready

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10. The following shows the DA16x00 configuration setting console via AT-Command from MCU.
=======================================================
argc num = 2
argv[0]: AT+AWS
argv[1]: CFG 3 mcu_window 1 0
=======================================================
=======================================================
Att[3] number : 3
Att[3] name : mcu_window
Att[3] data type: 1
Att[3] MQTT type: 0
=======================================================
=======================================================
argc num = 2
argv[0]: AT+AWS
argv[1]: CFG 4 battery 0 1
=======================================================
=======================================================
Att[4] number : 4
Att[4] name : battery
Att[4] data type: 0
Att[4] MQTT type: 1
=======================================================
=======================================================
argc num = 2
argv[0]: AT+AWS
argv[1]: CFG 5 temp 2 1
=======================================================
=======================================================
Att[5] number : 5
Att[5] name : temp
Att[5] data type: 2
Att[5] MQTT type: 1
=======================================================

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11. The following shows the DA16200 SoftAP provisioning ready status console after setting the
configuration.
Soft-AP is Ready (d4:3d:39:11:5e:73)
===========================================
[ AWS-IOT Doorlock ]
[ Ver. 21.06 , 202106171700 , eoh ]
============================================
Using internal cert key by app_aws_certi.h
[Make APP-Thing-Name]
[Built-name] APP Thing name : [FAE-DOORLOCK-1] (len=14)
AWS_IOT AP Mode FAE-DOORLOCK-1
=======================================================
[Start Provisioning with TCP/TLS] .. Soft AP Mode
=======================================================
[app_provision_switch_client_thread] Create...(status=0) [10]
[app_provision_TCP_server_thread] Create ...
[app_provision_TLS_server_thread] Create TLS...
>>> Start Provisioning Server (TLS) ...
Wait Accept (TLS)...
[app_find_home_ap] Wi-Fi Scan request success.
[app_find_home_ap:518] (0) iptime_justin / 3 / -34 / 2447
[app_find_home_ap:518] (1) AP-101-201 / 3 / -66 / 2432
[app_find_home_ap:518] (2) SK_WiFiGIGA551A_2.4G / 3 / -78 / 2422
[app_find_home_ap:518] (3) SK_WiFiGIGA551A / 3 / -79 / 2422
[app_find_home_ap:518] (4) SK_WiFi3801 / 3 / -94 / 2412
[app_find_home_ap:518] (5) NIS-HomeAP11N / 0 / -74 / 2447
[app_provision_TCP_server_thread] socket().. status=1
Wait Accept...