Trying to exploit the Console over CDC ACM UART example and add I2C support

RE: Trying to exploit the Console over CDC ACM UART example and add I2C support

Tanmoy — Mon, 06 Oct 2025 09:47:05 GMT

Thank you for your answer. This worked !

RE: Trying to exploit the Console over CDC ACM UART example and add I2C support

Kazi Afroza Sultana — Mon, 06 Oct 2025 09:29:34 GMT

Hello,

The static assertion error ''console device is not ACM CDC UART device'' means that CDC ACM UART is not defined in the overlay (USB device support (deprecated)).

Add the following lines in the devicetree overlay file alongside of your i2c configuration

/ {
    chosen {
        zephyr,console = &cdc_acm_uart0;
    };
};

&zephyr_udc0 {
    cdc_acm_uart0: cdc_acm_uart0 {
        compatible = "zephyr,cdc-acm-uart";
        label = "CDC_ACM_0";
    };
};

RE: Trying to exploit the Console over CDC ACM UART example and add I2C support

Tanmoy — Sat, 04 Oct 2025 20:37:30 GMT

Content of prj.conf

CONFIG_I2C=y

CONFIG_SERIAL=y
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y
CONFIG_STDOUT_CONSOLE=y
CONFIG_UART_LINE_CTRL=y

CONFIG_USB_DEVICE_STACK_NEXT=y
CONFIG_CDC_ACM_SERIAL_INITIALIZE_AT_BOOT=y
CONFIG_CDC_ACM_SERIAL_PID=0x0004
CONFIG_CDC_ACM_SERIAL_PRODUCT_STRING="USB Device"