Home Forums Hardware discussions Serial over USB not working.

This topic contains 3 replies, has 2 voices, and was last updated by  biothundernxt 1 week, 1 day ago.

Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • #345

    biothundernxt
    Participant

    I am having trouble with my unit.
    I never could get the serial over usb to work with only the 5v power plugged in, it would show up as a device, but the terminal would stall.
    Plugging in the 12v power adapter yielded the desired result, but I was having problems getting it to read the sd card properly.

    Now, when I try to connect to the serial even with the 12v plugged in, I am having issues.

    It connects, but all I get is a >
    If I type anything (or nothing, it doesn’t matter) and hit enter, the console returns:

    E
    >

    Pressing the reset button makes it spit another > out after a moment, but then has the same behavior.

    If anyone has any insight as to what I am doing wrong, or if I perhaps have a malfunctioning unit, your insight would be appreciated.

    #378

    TheLinuxBug
    Participant

    Sounds to me (just guessing here) like you hosed u-boot on the SPI NOR chip. You should be able to place u-boot on an sd-card and boot from it. Once in u-boot on the SDcard you should also be able to re-load u-boot on the SPI NOR (assuming this is the issue). I am not sure if they have this process documented yet, but at least writing u-boot to an SDcard should allow you to boot into an operating system.

    Hope this helps!

    Cheers!

    #392

    biothundernxt
    Participant

    Thanks, I will try that.

    #393

    biothundernxt
    Participant

    Where might I get the uboot image for this board? I cant seem to find it on the wiki anywhere…

Viewing 4 posts - 1 through 4 (of 4 total)

You must be logged in to reply to this topic.

Signup to our newsletter

Technical specification tables can not be displayed on mobile. Please view on desktop