How to use usb to ttl for install OpenWrt in Archer D50

Installing and Using OpenWrt
1

Any help to use USB to TTL for install OpenWrt in arch d50

and how to check rx and dx

2
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3

@ slh

after following me the explanation here:
https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=f5d2c91415a68f554815860d574145644fc31c16

not work from me
look this message:

Board IP address                  : 192.168.1.2  
Host IP address                   : 192.168.1.100  
Gateway IP address                : 192.168.1.1  
Run from flash/host (f/h)         : h  
Default host run file name        : vmlinux  
Default host flash file name      : bcm963xx_fs_kernel  
Boot delay (0-9 seconds)          : 1  
Board Id (0-4)                    : 96318REF  
Number of MAC Addresses (1-32)    : 11  
Base MAC Address                  : 02:10:18:01:00:01  
PSI Size (1-64) KBytes            : 24  
Enable Backup PSI [0|1]           : 0  
System Log Size (0-256) KBytes    : 0  
Auxillary File System Size Percent: 0  
Main Thread Number [0|1]          : 0  

*** command status = 0
CFE> tftpboot 0x81000000 openwrt-ath79-generic-tplink_archer-d50-v1-squashfs-sysupgrade.bin
Invalid command: "tftpboot"
Available commands: phy, sm, dm, w, e, r, p, c, f, i, a, b, reset, force, help

*** command status = -1
CFE>
4

You connected to the wrong UART, the Broadcom one, not the QCA one.

Be very, very, very sure what you're doing, you might not have second chances taking a wrong step.

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