Hi,
According to the link 
I still can't boot from UART.
My step as below .
1. Set BOOT From UART (J3~J4) on TMDSEVM572X.
2. Short J5.
3. Open Teraterm on Windows machine and set serial port to 115.2 Kbps, 8 bits, even parity, 1 stop-bit, no flow control.
4. I can see that “VA!” characters appear on TeraTerm window continuously.
5. Close the teraterm window.
6. Open Linux Terminal and execute the following command.
will@ubuntu:~/ti-processor-sdk-linux-am57xx-evm-03.00.00.04/board-support/prebuilt-images$ sx -kb u-boot-spl.bin-am57xx-evm < /dev/ttyUSB0 > /dev/ttyUSB0
Sending u-boot-spl.bin-am57xx-evm, 530 blocks: Give your local XMODEM receive command now.
Retry 0: Receiver Cancelled
Transfer incomplete
will@ubuntu:~/ti-processor-sdk-linux-am57xx-evm-03.00.00.04/board-support/prebuilt-images$
Please give me some suggestions.
Thanks a lot.
