How to stop MB1 and MB2 from printing during boot

Robotics & Edge Computing Jetson Systems Jetson AGX Orin
1

Hello,

As we are productising our product, we need to stop MB1 & MB2 from printing during boot on the serial output.

Could you let us know how to do this please?

4

Hi jeanphilippe.arnaud,

Are you using the devkit or custom board for AGX Orin?
What’s the Jetapck version in use?

Please try to configure the following lines in tegra234-mb1-bct-misc-common.dtsi and check if it could meet your requirement.

        ///////// Debug data //////////
        debug {
            uart_instance = <2>;
            wdt_period_secs = <0>;
-#ifdef DISABLE_UART_MB1_MB2
            log_level = <0>;
-#else
-            log_level = <4>;
-#endif
            uart8_usb_port_sel = <0>;
            usb2_nvjtag = <0>;
5

Hi Kevin,

Thank you. We are using a custom board with the Orin AGX SOM. We use L4T 36.4.4.

Will try your suggestion

6

Hi Kevin,

I get this exception when defining DISABLE_UART_MB1_MB2

!0x200 Exception! [elr:0x5002171c, spsr:0x600002cd, esr:0x96000007, far:0x68]

Should enable_combined_uart = <1> also be changed to enable_combined_uart = <0> by any chance?

7

Hi Kevin,

I am still unable to reset to the log level to 0. Getting those exceptions no matter what I try,.

Any suggestion?

8

Hi jeanphilippe.arnaud,

Please just update them as I shared(by removing those lines) instead of defining DISABLE_UART_MB1_MB2 which causes the exception issue.