kermit file transfer and u-boot

I usually use "picocom" on Linux to talk through a serial line to U-boot. Of course I have used "minicom" before but it seems heavy. There is even "microcom". However, so far I have stayed away from "kermit" just because it seems to be so complicated and not totally free in license.

Now the authors in Columbia University has made it totally free (BSD license), and U-boot supports its file transfer protocol (loadb command) (u-boot does not support ZModem, only Ymodem). I take a look at it.

It looks like a nice serial terminal emulator with file transfer capability. The macro part is really handy. Below is my .kermrc file with two user-defined macros for uploading uboot and kernel images using the kermit protocol in a different baud rate than console baud

cat ~/.kermrc
set line /dev/ttyUSB1
set speed 115200
set carrier-watch off
set handshake none
set flow-control none
robust
set file type bin
set file name lit
set rec pack 1000
set send pack 1000
set window 5
set delay 1
connect
define sendb {
        set speed 230400
        output \x0D
        output \x0D
        send u-boot.bin
        input 1 "NEVER"
        set speed 115200
        output \x1B
        output \x0D
}
define sendk {
        set speed 230400
        output \x0D
        output \x0D
        send uImage
        input 1 "NEVER"
        set speed 115200
        output \x1B
        output \x0D
}