DSD TECH SH-C31A USB to CAN Adapter User Manual

1. Pengenalan

This manual provides detailed instructions for the DSD TECH SH-C31A USB to CAN Adapter. The SH-C31A is a non-isolated USB to CAN adapter based on the open-source hardware project Canable 2.0, designed to facilitate communication with CAN and CAN-FD networks via a USB interface.

It features a robust design and supports both CAN and CAN-FD protocols, making it suitable for various industrial and automotive applications. The device comes with pre-installed candlelight firmware, but can be updated to slcan firmware for CAN FD functionality.

2. Kandungan Pakej

Sahkan bahawa semua item terdapat dalam pakej anda:

• 1 x DSD TECH SH-C31A USB to CAN Adapter
• 1 x 3PIN Terminal Block
• 1 x Panduan Pengguna (dokumen ini)

Image: Contents of the DSD TECH SH-C31A package, showing the adapter, a 3-pin terminal block, and a user guide.

3. Produk Lebihview

The DSD TECH SH-C31A is a compact USB to CAN adapter. It features a transparent casing, allowing visibility of the internal circuitry. Key components include a USB-A connector, a 3-pin terminal block for CAN bus connections, and a boot switch for mode selection.

Imej: Terperinci view of the SH-C31A adapter, highlighting the CAN_L, GND, CAN_H pins, the Boot Switch (ON: DFU Mode, OFF: Work Mode), and the R120 Switch. Separate images show the front and back views peranti.

3.1. Penerangan Pinout

• CAN_L: CAN Low signal line.
• GND: Sambungan tanah.
• CAN_H: CAN High signal line.

3.2. Boot Switch

• Kedudukan OFF: Work Mode. The adapter operates with its current firmware (default is candlelight).
• Kedudukan ON: DFU (Device Firmware Upgrade) Mode. Used for flashing new firmware to the device.

4. Persediaan dan Sambungan

Follow these steps to connect your DSD TECH SH-C31A USB to CAN Adapter:

1. Connect CAN Bus Wires: Insert the CAN_H, CAN_L, and GND wires from your CAN network into the provided 3-pin terminal block. Ensure correct polarity.
2. Attach Terminal Block: Securely plug the terminal block into the corresponding connector on the SH-C31A adapter.
3. Sambung ke Komputer: Plug the USB-A connector of the SH-C31A adapter into an available USB port on your desktop or laptop computer.

Image: Step-by-step visual guide showing how to connect the CAN bus wires to the removable 3-pin terminal block, and then how to insert the terminal block into the SH-C31A adapter. The terminal block is included in the package.

Image: Illustrates the process of securing the CAN bus wires into the 3-pin terminal block using a small screwdriver, ensuring a firm connection before attaching the block to the SH-C31A adapter.

5. Arahan Operasi

5.1. Work Mode (Default)

In Work Mode, the Boot Switch should be in the OFF position. The adapter will operate with its currently installed firmware. By default, the SH-C31A comes with candlelight firmware, which supports standard CAN frames but not CAN FD frames.

To use the adapter in Work Mode with software like Cangroo or BUSMASTER:

1. Ensure the Boot Switch is in the OFF position.
2. Connect the adapter to your computer and CAN bus as described in Section 4.
3. Open your preferred CAN analysis software (e.g., Cangroo, BUSMASTER).
4. Configure the software to recognize the "candleLight USB to CAN adapter" or similar device under Universal Serial Bus devices.
5. Initiate measurement or communication within the software.

Image: Demonstrates the SH-C31A adapter connected and recognized by Cangroo software on Windows. It shows the device listed under "Universal Serial Bus devices" and steps to start a measurement within Cangroo.

5.2. Firmware Update (DFU Mode)

If you require CAN FD functionality, you must flash the firmware to slcan firmware. This process involves putting the device into DFU Mode.

1. Enter DFU Mode: Move the Boot Switch to the ON position.
2. Sambung ke Komputer: Plug the SH-C31A adapter into your computer's USB port. The device should appear as "STM Device in DFU Mode" in your device manager.
3. Access Firmware Updater: Navigate to the official CANable 2.0 firmware updater webtapak: https://www.canable.io/updater/canable2.html
4. Pilih Perisian Tegar: pada website, select the desired firmware (e.g., "slcan with FD support") from the dropdown menu.
5. Firmware Flash: Click "Connect and Update" and follow the on-screen prompts to flash the new firmware.
6. Exit DFU Mode: After successful flashing, return the Boot Switch to the OFF position. Unplug and replug the device to start with the new firmware.

Image: Illustrates the process of flashing firmware. The SH-C31A is shown with its boot switch toggled to DFU mode, and a screenshot of the CANable 2.0 updater website is displayed, showing the selection of 'slcan with FD support' firmware.

Image: A comparative diagram showing how the SH-C31A is recognized by a computer in Work Mode (as "candleLight USB to CAN adapter") versus DFU Mode (as "STM Device in DFU Mode"), along with a summary of features for each mode.

5.3. Video Produk Rasmi

6. Penyelenggaraan

The DSD TECH SH-C31A USB to CAN Adapter is designed for durability and requires minimal maintenance. To ensure optimal performance and longevity:

• Pastikan peranti bersih dan bebas daripada habuk dan serpihan. Gunakan kain lembut dan kering untuk pembersihan.
• Elakkan mendedahkan penyesuai kepada suhu, kelembapan atau cahaya matahari langsung yang melampau.
• Jangan cuba membuka casing or modify the internal components, as this will void the warranty.
• Ensure connections are secure but do not overtighten the terminal block screws.

7. Penyelesaian masalah

If you encounter issues with your DSD TECH SH-C31A adapter, consider the following troubleshooting steps:

• Peranti Tidak Dikenali:
  • Pastikan penyesuai dipalamkan dengan selamat ke dalam port USB berfungsi.
  • Check your computer's Device Manager to see if the device is listed (e.g., "candleLight USB to CAN adapter" or "STM Device in DFU Mode").
  • Cuba port USB atau komputer lain.
  • If in DFU mode, ensure the Boot Switch is in the ON position. If in Work Mode, ensure it's OFF.
• No CAN Communication:
  • Verify that the CAN_H, CAN_L, and GND connections are correct and secure.
  • Check the CAN bus termination resistors if applicable to your network.
  • Ensure your software is correctly configured for the adapter and the CAN bus parameters (e.g., baud rate).
  • If using CAN FD, confirm that the slcan firmware has been successfully flashed.
• Isu Kemas Kini Perisian Tegar:
  • Ensure the Boot Switch is in the ON position before connecting for DFU mode.
  • Gunakan yang serasi web browser (e.g., Chrome) for the CANable updater webtapak.
  • If on Linux, you may need to add a udev rule for proper device recognition. Refer to the CANable documentation for details.

For further assistance, please contact DSD TECH customer support.

8. Spesifikasi

Image: A comparison table detailing different DSD TECH USB CAN series adapters (SH-C30A, SH-C30G, SH-C31A, SH-C31G), showing their base CANable version, ASIN, CAN FD support, isolation status, CAN pinout, and interface type.

9. Waranti dan Sokongan

DSD TECH provides a manufacturer warranty for 12 months from the date of purchase for the SH-C31A USB to CAN Adapter. Additionally, DSD TECH offers permanent technical support and a 1-year product replacement service.

For technical assistance, warranty claims, or product replacement inquiries, please contact DSD TECH customer support through their official webtapak atau platform tempat produk itu dibeli.

Further documentation, including schematics, BOM lists, and Gerb files, for this open-source hardware product is publicly available on the DSD TECH webtapak.