Himax AIoT WiFi G1 SDK

Himax-AIoT-WiFi-G1 Platform EVB USER GUIDE

Himax-AIoT-WiFi-G1 platforms EVB includes Himax WE-I Plus MCU, image sensor and rich peripheral supports. The details are given in the following paragraph.

Table of contents

• Himax-AIoT-WiFi-G1 Platform EVB
• System Prerequisites
  • Hardware Environment Setup
  • Software Tools
• Code building
• Deploy image to Himax-AIoT-WiFi-G1 Platform EVB
  • Startup Flowchart
  • Power ON EVB
  • Flash Image via OTA tool
  • Boot from i2c
  • Check UART Message Output
• Retrieve detection result on Himax-AioT-WiFi-G1
  • PC tool
  • Wifi

Himax-AIoT-WiFi-G1 Platform EVB

1. Himax WE-I Plus chip
2. HM0360 AoS^TM VGA camera
3. Microphones (L/R) at back side
4. 3-Axis Accelerometer
5. 3-Axis Gyroscope
6. 3-Axis Magnetometer
7. Reset Button
8. GREEN LED x2 and RED LEDx1 and BLUE LEDx1
9. Micro-USB cable (I2C/SPI/Flash Download)

Hardware user guide PDF

System Prerequisites

• Operating system

  • Ubuntu 20.04 LTS
  
  

• Development toolkit

  • GNU Development Toolkit

    See ARC GNU Tool Chain section for more detail, current released GNU version is GNU Toolchain for ARC Processors, 2021.03. After download and extract toolkit to local space, please remember to add it to environment PATH. For example:

    export PATH=[location of your ARC_GNU_ROOT]/bin:$PATH
    

• Hardware Environment Setup
  • Prepare a micro-USB cable to connect to EVB with PC(used as Power/UART)

• Software Tools
  • OTA tool (Windows application, image flash)
  • HMX-AIOT-FT4222H_GUI (Windows application, I2C/CLK/SPI)

    Tools can be found in Himax-AIoT-WiFi-G1-SDK/tools/
    

  • UART Terminal Application such as TeraTerm.

Code building

Default building toolchain setting in makefile is Metaware Development toolkit(mw), please change it to gnu in Makefile(Himax-AIoT-WiFi-G1-SDK/makefile).

ARC_TOOLCHAIN ?= gnu

Before building, you need to change permission in Himax-AIoT-WiFi-G1-SDKtoolsimage_gen_cstmoutput directory.

chmod 777 *

Build code & generate image. The output images will be named output.img and saved under Himax-AIoT-WiFi-G1-SDKtoolsimage_gen_cstmoutput.

make clean && make && make flash 

Deploy image to Himax-AIoT-WiFi-G1 Platform EVB

Use the following procedure to startup the Himax-AIoT-WiFi-G1 platform EVB.

Startup Flowchart

Power ON EVB

• Power supply by usb or battery(AAA*4)

Flash Image via OTA tool

All following steps are done in Windows.

• Step 1: Follow image below to switch pins on Himax-AIoT-WiFi-G1 Platform EVB.

  

• Step 2: Connect with PC USB to power on Himax-AIoT-WiFi-G1 Platform EVB.

• Step 3: Check if you can see UART Message Output. If no, refer to Boot from i2c to flash image.

• Step 4: Use /tools/OTA_Tools/ota.exe to download EVB image.

  • Step 4.1: Open OTA.exe
    

  • Step 4.2: Select 1.Command->1.Intoupg
    

    If sucessful, the highlight message "Please use OTA UPGRADE TOOL Version : x.x.x" will be shown in TeraTerm. Now the device is ready for OTA flash programming.

  • Step 4.3: Switch back to OTA tool and select 2.Upgrade->1.FORCE UPGRADE to start upgrade image.

    

  • Step 4.4: Wait for a while, the device will reboot when flash process complete.

Boot from i2c

If OTA process isn't accessible, boot from i2c to reload 2nd bootloader to fix problem.

• Step 1: Connect with PC USB to power on Himax-AIoT-WiFi-G1 Platform EVB.

• Step 2: Turn pin #1 switch on & press Reset button to reset.

  

• Step 3: Excute OTA.exe on /tools/OTA_Tools/ and select
  3.Other Tools->1.Boot from I2C.

• Step 4: Enter the input files path manually:
  BootUpFromI2CHX6537-A09TDIG-1111V_QFN72_Debugsign_formal_PA8530_EM9D_2nd_Bootloader.bin.
  

  

  The board will reboot & enter 2nd boot loader, you will see the message "Please use OTA UPGRADE TOOL Version : x.x.x" that is the same as normal OTA process. Now, just follow normal Flash Image via OTA tool section to complete process.

  

Check UART Message Output

• Serial Terminal Emulation Application Setting

  Baud Rate	115200 bps
  Data	8 bit
  Parity	none
  Stop	1 bit
  Flow control	none

The system will output the following message to the UART console. Please setup UART terminal tool setting as (115200/8/N/1).

• Display Log Message In the example, we use TeraTerm to see the output message.

  • TeraTerm New Connection

    

  • TeraTerm Select COM Port

    

Retrieve detection result on Himax-AioT-WiFi-G1

PC Tool

1. Excute GUI tool HMX_FT4222H_GUI.exe under toolsHMX_FT4222H_GUIGUI_binary.

2. Select 'SPI slave' tab.

3. In Receive Image/Data field, select 'ALGO' then click the 'Receive' button.

4. The GUI PC_Tool will pop a new window 'Simple_FRAMES' to display the captured image and the person detection result.

5. In the 'Simple_FRAMES' window, the left-top indicator disply whether human is presence or not.

   Green (human detect); Red (no human detect).

WiFi

1. Setup the TCP Server Example on PC.

• 1.1. Connect your Win10 PC to WiFi AP.

• 1.2. Use ipconfig to get the IP Address of your PC.

  

• 1.3. Execute tcp_server_example.py on tools/tcp_server_example/

• 1.4. The tcp_server_example is ready to receive data.

2. Setup Himax-AIoT-WiFi-G1.

• 2.1. Download the SDK.
• 2.2. According to your WiFi environment to config the settings in to app/scenario_app/aiot_example/app_main.c:

  #define SSID "your_wifi_ssid" //your wifi ssid
  #define PASSWD "your_wifi_password" //you wifi password

• 2.3. Set the SERVER_IP to the IP got from Step 1.2

  #define SERVER_IP "192.168.1.100" //your tcp server ip

• 2.4. Build the image and upgrade to Himax-AIoT-WF-G1(Flash Image via OTA tool).
• 2.5. After Himax-AIoT-WF-G1 boot up, it should connect to the TCP Server(PC).

3. Himax-AIoT-WF-G1 continues to sending JPGs and human-detection result to the TCP Server(PC).

TensorFlow Lite for Microcontroller Example

TFLM Model Path

• Put your training model in Himax-AIoT-WiFi-G1librarycvtflitemicro_25examplesperson_detection_experimental