Module ASR — Custom Firmware Generation and Flashing

Based on the actual command words and multi-language requirements used by the customer, the Module ASR offline speech recognition module can flexibly and efficiently adjust command words and response phrases via the SmartPi online platform, and regenerate matching firmware.

1. Preparation

1. Account Registration: Visit the SmartPI Platform to complete account registration and log in, then open the 产品管理 (Product Management) page and click the 所有产品 (All Products) item.

• After entering the platform, click 免费注册 in the upper-right corner to open the registration page. Enter your phone number/email address, then click 发送验证码 (Send Code) to receive the verification code. Fill in the remaining required information and click 同意并注册 to complete the registration.

• After registration, you will see the page below. Click the area highlighted by the red box in the upper-right corner to switch to username/password login. Enter the account and password you just registered, then click 登录 to access the platform.

• Alternatively, click 登录 in the upper-right corner of the page below, select 账号登录, then enter your registered account and password and click 登录 to enter the platform.

2. Download the product configuration template (.json): The links below include both Chinese and English versions of the configuration template. Choose the template that matches the language you will use; you can further customize the firmware based on the template.

• Download Module ASR Config Template Json File

3. Hardware:

• Module ASR only needs to be connected to a computer via a USB Type-C data cable for flashing.

4. Software tools used:

• Module ASR flashing tool

2. Configuration Template

1. Click 导入产品 (Import Product) and import the product configuration template (.json) downloaded in the previous step. This tutorial uses the English template as an example.

2. Click 查看详情 (View Details), select the template and click 继承 (Inherit). This will create a new version based on the factory firmware template for editing.

3. Click the 编辑 (Edit) button to enter the firmware configuration page. Scroll to the 命令词自定义 (Command Words Customization) option and click +添加一条 (Add) to create a new command.

4. Fill in the trigger phrase and the reply phrase according to the language you will use. Do not mix languages; configure according to the language you enable. When finished, click the arrow button (>>) and then click +添加控制 (Add Control) to configure detailed parameters for the current command.

5. Configure the UART response payload that the Module ASR will send when a voice command is triggered. To be compatible with the M5Unit-ASR Arduino library, follow the existing format. The format rule is AA 55 ID 55 AA, where the command ID must be unique and must not conflict with other commands.

6. After completing the configuration above you have added the new command Add. Next, click the Configuration Check option in the menu to validate for errors. If everything is correct, click 发布版本 (Publish Version) to package the firmware.

7. The version publishing process takes a few minutes. Once the firmware is generated, click 下载固件 (Download Firmware). The firmware archive is named jx_firm.tar.gz.

3. Flashing the Firmware

1. Open the Module ASR flashing tool (.exe) downloaded in previous steps. Ensure the product model is set to CI1302, then click Update to start the tool.

2. Import the extracted firmware file (.bin).

3. Flashing procedure

The Module ASR flashing port is a USB Type-C connector — connect the module to your computer using this port.

Once the flashing tool detects the correct COM port, check the port to activate download mode, then press the Debug Rst button to start downloading the program.

4. Program download complete.

4. Command Test

Power the Module ASR module and use the wake phrase Hi M Five. If it responds with I'm here, the firmware flashing was successful.