topic UART serial connection in i.MX Processors

UART serial connection

info33 — Thu, 13 Dec 2018 21:33:49 GMT

Hello everyone. i'm hoping i can get some help with something i have been working off and on for a while. I have a SABRESD i.MX 6Dual/6Quad on a custom board from some OEM manufacturer. A few of them actually. I want to follow this tutorial to put linux on it. Looks pretty straight fwd. The problem i'm having is im unable to connect to the serial port to stop the U-Boot process if there is one at all. Currently there is Android on it so it's probably Fastboot. I'm guessing that the custom board does not allow a serial connection so it's not tampered with. I found what i think is a tx/rx on the board that connects to the chip for development.

Here is the pinout of the connection to the chip. the far left and right are vcc and ground while the two in the center connect to the chip.

and the headers i soldered onto it

Sorry for the noob questions. This is all very new to me and this is all i have managed to put together. If there is indeed Fastboot on it, is there a way i can flash U-boot without access to the serial connection that will later have a serial connection for me to connect to?

Re: UART serial connection

igorpadykov — Sat, 15 Dec 2018 05:18:30 GMT

Hi Craig

one can program images with mfg tool from below link using usb port,

serial connection is not needed.

i.MX Software|NXP

Best regards
igor
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Re: UART serial connection

info33 — Sun, 16 Dec 2018 18:21:50 GMT

Hi Igor. Thanks for the tip. I'll check it out today.