When developing or debugging an embedded device, one of the most effective ways to verify whether the system is operating correctly—or to identify why it is not behaving as expected—is by checking console messages. TW101DB also provides console messages for this purpose, which can be monitored in real-time through the serial port.
Why Console Messages Are Useful
- Monitor the device’s operating status in real time
- Analyze and debug issues when problems occur
What You’ll Need
- USB to TTL converter module
- Serial terminal program (e.g., PuTTY, TeraTerm, etc.)
How to Check Console Messages
1. Connect the USB to TTL Converter
Connect the USB to TTL converter module to the console port of the TW101DB board.
For the sole purpose of monitoring console messages, it is sufficient to connect the USB-to-TTL converter module with just two wires.
| TW101DB | USB-to-TTL converter |
| TX | RX |
| GND | GND |
2. Launch the Serial Terminal Program
Run your preferred terminal program and configure the settings as follows:
- Baudrate: 115200 bps (fixed for TW101DB console messages)
- COM Port: Select the port assigned to the USB-to-TTL converter (check via Device Manager)
After applying these settings, click Open to start receiving console messages.
3. Power Up the Board
Once the TW101DB board is powered on, you will see messages corresponding to each step of the process, such as Boot → App execution, along with system configuration details.
Tips
If the TW101DB does not perform as expected, console messages can help you quickly identify the root cause and current system state. This significantly reduces troubleshooting time and effort.
In the next post, we’ll look at real-world troubleshooting examples using console messages.
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