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minix neo x7 uart(serial console)

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    minix neo x7 uart(serial console)

    Hi all.
    I would like to find the UART. i found j1 connector, is it right uart?

    Thank you.

    #2
    We asked minix about the possibility to connect the x7 with a serial adapter to develop in kernel, but they answered that there was not this possibility.

    leolas
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      #3
      Its bad news for debug u-boot loader.

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        #4
        Originally posted by leolas View Post
        We asked minix about the possibility to connect the x7 with a serial adapter to develop in kernel, but they answered that there was not this possibility.

        leolas
        GOOD NEWS - there is a possibility to do so. The test pads T1 (RxD), T2 (TxD) and T3 (GND) are to be used. The T1 and T2 print is not visible in the photo - both prints are hidden by the cooler panel.
        !!! Please notice that beside the blank copper in-circuit test pads there is a solder pad connected to each test pad that is supposed to be used for soldering a cable.

        Baudrate is 115200 by default boot and kernel settings.

        GND can alternatively be picked from header J1, pin 4.

        J1 is an additional USB plug - for what purpose ever. The pins are: 1: VCC, 2: D-, 3: D+, 4: GND

        The two pads at T4 can be used to get the device into MASKROM mode when the T4 pads are shorted during boot.

        Last edited by bootlog; 06-29-2020, 10:31.

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