🛠 Getting Started with SLogic32U3: Installation and First Connection

Objectives

This tutorial guides you through the first use of the Sipeed SLogic32U3. You will learn how to install the necessary software, physically connect the device via its USB 3.2 Gen2 port, and confirm that your operating system detects it correctly. We will also cover safety precautions related to USB power.

Required Equipment

• SLogic32U3 logic analyzer.
• High-quality USB-C cable (USB 3.2 Gen 2 certified to exploit the 10 Gbps bandwidth).
• Computer with a USB-C port (Windows, Linux, macOS, or Android).
• SLogicView software or Sigrok suite (Pulseview/sigrok-cli).
• Screen and mouse for the graphical interface.

Steps

1. Software Installation: Download the latest version of SLogicView from the official Sipeed website. On Linux, ensure you have installed libusb dependencies and udev rules to allow access to USB devices without root privileges. On Windows, the installer will include necessary drivers.
2. Hardware Preparation: Verify that your USB-C cable is properly connected. The SLogic32U3 is powered solely by the USB bus (5 V, 65 mA); no external power supply is required. Avoid using low-quality unpowered USB hubs that might limit throughput.
3. Physical Connection: Insert the USB-C connector into the computer port. The device has no on/off switch; it turns on upon connection. Status LEDs usually light up to indicate power.
4. Software Launch: Open SLogicView. In the “Devices” or “Connect” menu, select “SLogic32U3”. The software should automatically detect the device via the USB 3.2 interface.
5. Channel Configuration: Once connected, you will see 32 digital channels available. By default, the voltage threshold is set to 1.8 V (adjustable from 0 to 6 V). For a first test, leave the default settings.

Verification

To confirm proper operation, connect a GPIO output from a microcontroller (like an Arduino or ESP32) to channel CH0 of the SLogic32U3, and another to the common GND. Start an acquisition at 1400 MS/s (4-channel mode) or 200 MS/s (32-channel mode). You should see a clean square wave. If the signal is noisy or missing, check the common ground between the tested device and the analyzer.

Further Reading

Explore high sampling modes (up to 1400 MS/s on 4 channels) to analyze high-frequency signals. Also test the optional ADC module to capture analog signals.