Scenario #3 Both tiboot3 and enet app built with BOARD_UART_INSTANCE = 5U

Logs:

--------------------------------- MCU UART ---------------------------------

stanisic@RTRKW845-LIN:/home/milena/test$ sudo picocom -b 115200 -r -l /dev/ttyUSB1
picocom v3.1

port is        : /dev/ttyUSB1
flowcontrol    : none
baudrate is    : 115200
parity is      : none
databits are   : 8
stopbits are   : 1
escape is      : C-a
local echo is  : no
noinit is      : no
noreset is     : yes
hangup is      : no
nolock is      : yes
send_cmd is    : sz -vv
receive_cmd is : rz -vv -E
imap is        :
omap is        :
emap is        : crcrlf,delbs,
logfile is     : none
initstring     : none
exit_after is  : not set
exit is        : no

Type [C-a] [C-h] to see available commands
Terminal ready
CCC01000000011a00006a3761657000000000000000475020200008010000080100CCCCCCCCCCCCCCCCCCCCCCCCCCCCC01000000011a00006a3761657000000000000000475020200008010000080100CCCCCC
Terminating...
Skipping tty reset...
Thanks for using picocom
stanisic@RTRKW845-LIN:/home/milena/test$ sudo picocom -b 115200 -r -l /dev/ttyUSB1
picocom v3.1

port is        : /dev/ttyUSB1
flowcontrol    : none
baudrate is    : 115200
parity is      : none
databits are   : 8
stopbits are   : 1
escape is      : C-a
local echo is  : no
noinit is      : no
noreset is     : yes
hangup is      : no
nolock is      : yes
send_cmd is    : sz -vv
receive_cmd is : rz -vv -E
imap is        :
omap is        :
emap is        : crcrlf,delbs,
logfile is     : none
initstring     : none
exit_after is  : not set
exit is        : no

Type [C-a] [C-h] to see available commands
Terminal ready
01000000011a00006a3761657000000000000000475020200008010000080100CC01000000011a00006a3761657000000000000000475020200008010000080100CCCCCCCCCCCCCC
Terminating...
Skipping tty reset...
Thanks for using picocom
stanisic@RTRKW845-LIN:/home/milena/test$



--------------------------------- MAIN ---------------------------------

no logs




--------------------------------- FLASH ---------------------------------

#3
stanisic@RTRKW845-LIN:/home/pijetlovic/Desktop/spi$ sx tiboot3.bin < /dev/ttyUSB1 > /dev/ttyUSB1
Sending tiboot3.bin, 1948 blocks: Give your local XMODEM receive command now.
Bytes Sent: 249472   BPS:7815

Transfer complete
stanisic@RTRKW845-LIN:/home/pijetlovic/Desktop/spi$ sx tifs.bin < /dev/ttyUSB1 > /dev/ttyUSB1
Sending tifs.bin, 1239 blocks: Give your local XMODEM receive command now.
Xmodem sectors/kbytes sent:   0/ 0k
Retry 0: Timeout on sector ACK
Retry 0: Got 30 for sector ACK
Retry 0: NAK on sector
Bytes Sent: 158720   BPS:1124

Transfer complete
stanisic@RTRKW845-LIN:/home/pijetlovic/Desktop/spi$
stanisic@RTRKW845-LIN:/home/pijetlovic/Desktop/spi$ sx app < /dev/ttyUSB1 > /dev/ttyUSB1
Sending app, 4683 blocks: Give your local XMODEM receive command now.
Xmodem sectors/kbytes sent:   1/ 0kRetry 0: Cancelled

Transfer incomplete

######Second run:

stanisic@RTRKW845-LIN:/home/pijetlovic/Desktop/spi$ sx tiboot3.bin < /dev/ttyUSB1 > /dev/ttyUSB1
Sending tiboot3.bin, 1948 blocks: Give your local XMODEM receive command now.
Bytes Sent: 249472   BPS:7666

Transfer complete
stanisic@RTRKW845-LIN:/home/pijetlovic/Desktop/spi$ sx tifs.bin < /dev/ttyUSB1 > /dev/ttyUSB1
Sending tifs.bin, 1239 blocks: Give your local XMODEM receive command now.
Xmodem sectors/kbytes sent:   0/ 0k

Retry 0: Timeout on sector ACK

Retry 0: Got 30 for sector ACK
Retry 0: NAK on sector
Bytes Sent: 158720   BPS:817

Transfer complete