Firsts steps with AM335x
Recovery boot
1. Make sure the BOOT mode is set to UART. 2. Connect to the debug UART with your computer and launch the serial terminal application
picocom -b 115200 /dev/ttyUSB0 --send-cmd "sz -vv -X" --receive-cmd "rz -vv -X"
3. Start the board. When "CCCC" characters appear on terminal window, do:
C-a C-s *** file: u-boot-spl.bin
4. Exit from picocom using C-a C-q, and relaunch picocom with
picocom -b 115200 /dev/ttyUSB0 --send-cmd "sz -vv -Y" --receive-cmd "rz -vv -Y"
5. When "CCCC" characters appear on terminal window, do:
C-a C-s *** file: u-boot.bin
6. Hitting any key to stop automatic boot, should present the U-Boot prompt.