If you see garbage characters on the screen (random symbols), your baud rate is mismatched. Try stepping through standard rates: 9600, 19200, 38400, 115200. (19200 is usually the winner for Check Point).
When a USB-C device is connected, the driver checks for:
The driver then initializes the UART parameters: 115200 baud, 8N1, no flow control by default.
Before you download any driver, you must confirm two things: checkpoint usb-c console driver
Pro Tip: On Windows, plug in the cable and open Device Manager. Look under "Ports (COM & LPT)". If you see "Silicon Labs CP210x USB to UART Bridge" with a yellow exclamation, you need the driver. If you see nothing, your cable or port may be dead.
To enable checkpoint before the USB stack is ready, the driver uses a polling mode with a small framebuffer reserved in SRAM. Once the USB subsystem initializes, it switches to interrupt-driven mode.
Cause: User not in dialout group.
Fix: sudo usermod -a -G dialout $USER, then log out and back in. If you see garbage characters on the screen
USB-C console connections typically operate in one of two modes:
| Mode | Description | Use Case | |------|-------------|-----------| | Native USB-C to UART | On-board USB-C port connected to a USB-to-UART bridge (e.g., FTDI, CP2102). | Embedded boards with USB-C debug port. | | USB-C with DisplayPort Alternate Mode | Console shares port with video; driver must demux. | High-end appliances with debug over same port as management. |
For this paper, we assume the native USB-C to UART configuration, where the USB-C port appears as a standard CDC ACM device. The driver then initializes the UART parameters: 115200
Cause: Incorrect baud rate or flow control.
Solution:
Cause: Conflicts with older USB-serial adapters.
Solution: