1 .. SPDX-License-Identifier: GPL-2.0+:
16 The loady command is used to transfer a file to the device via the serial line
17 using the Kermit protocol.
19 The number of transferred bytes is saved in environment variable filesize.
22 load address, defaults to environment variable loadaddr or if loadaddr is
23 not set to configuration variable CONFIG_SYS_LOAD_ADDR
26 baud rate for the Kermit transmission. After the transmission the baud
27 rate is reset to the original value.
32 In the example below the terminal emulation program picocom and G-Kermit
33 serve to transfer a file to a device.
37 picocom --baud 115200 --send-cmd "gkermit -iXvs" /dev/ttyUSB0
39 After entering the loadb command the key sequence <CTRL-A><CTRL-S> is used to
40 let picocom prompt for the file name. Picocom invokes G-Kermit for the file
45 => loadb 60800000 115200
46 ## Ready for binary (kermit) download to 0x60800000 at 115200 bps...
48 *** file: helloworld.efi
49 $ gkermit -iXvs helloworld.efi
50 G-Kermit 2.01, The Kermit Project, 2021-11-15
51 Escape back to your local Kermit and give a RECEIVE command.
53 KERMIT READY TO SEND...
55 *** exit status: 0 ***
56 ## Total Size = 0x00000c00 = 3072 Bytes
57 ## Start Addr = 0x60800000
60 The transfer can be cancelled by pressing <CTRL+C>.
65 The command is only available if CONFIG_CMD_LOADB=y.
70 The return value $? is 0 (true) on success, 1 (false) on error.