SK-AM62: Booting U-Boot through UART

James Lee

Part Number: SK-AM62

Hello Ti,

I want to try to implement the document https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_04_01_03/exports/docs/linux/Foundational_Components/U-Boot/UG-UART.html

The switch on the EVM I'm not sure how to set.

Also, I cant send command through the terminal.

Is there any advice to solve the problem?

James

over 3 years ago

0 Bin Liu over 3 years ago

TI__Guru**** 175781 points

Hi James,

The picture below shows the boot mode switches for UART boot on SK-AM62.

0 James Lee over 3 years ago in reply to Bin Liu

Intellectual 485 points

Hi Bin,

Nice to see you again.

The document has the two commands and I have confuse:

$ sx -kb /path/to/u-boot-spl.bin < /dev/ttyUSB0 > /dev/ttyUSB0
$ sx -kb --ymodem /path/to/u-boot.img < /dev/ttyUSB0 > /dev/ttyUSB0

When shuld I use the above commands?

0 Bin Liu over 3 years ago in reply to James Lee

TI__Guru**** 175781 points

Hi James,

Here is the minicom script I run in minicom (Ctrl-A, G) to load u-boot:

timeout 300

print "\n"
! sx -kb tiboot3.bin < /dev/ttyUSB0 > /dev/ttyUSB0
expect "Trying"

print "\n"
! sx -kb tispl.bin < /dev/ttyUSB0 > /dev/ttyUSB0
expect "Trying"

print "\n"
! sx -kb u-boot.img < /dev/ttyUSB0 > /dev/ttyUSB0

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SK-AM62: Booting U-Boot through UART