mirror of
https://github.com/smaeul/u-boot.git
synced 2025-10-31 12:08:19 +00:00
60971e63e6
Add the description of CLI commands to the generated index. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
74 lines
1.6 KiB
ReStructuredText
74 lines
1.6 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+:
|
|
|
|
.. index::
|
|
single: loadb (command)
|
|
|
|
loadb command
|
|
=============
|
|
|
|
Synopsis
|
|
--------
|
|
|
|
::
|
|
|
|
loadb [addr [baud]]
|
|
|
|
Description
|
|
-----------
|
|
|
|
The loadb command is used to transfer a file to the device via the serial line
|
|
using the Kermit protocol.
|
|
|
|
The number of transferred bytes is saved in environment variable filesize.
|
|
|
|
addr
|
|
load address, defaults to environment variable loadaddr or if loadaddr is
|
|
not set to configuration variable CONFIG_SYS_LOAD_ADDR
|
|
|
|
baud
|
|
baud rate for the Kermit transmission. After the transmission the baud
|
|
rate is reset to the original value.
|
|
|
|
Example
|
|
-------
|
|
|
|
In the example below the terminal emulation program picocom and G-Kermit
|
|
serve to transfer a file to a device.
|
|
|
|
.. code-block:: bash
|
|
|
|
picocom --baud 115200 --send-cmd "gkermit -iXvs" /dev/ttyUSB0
|
|
|
|
After entering the loadb command the key sequence <CTRL-A><CTRL-S> is used to
|
|
let picocom prompt for the file name. Picocom invokes G-Kermit for the file
|
|
transfer.
|
|
|
|
::
|
|
|
|
=> loadb 60800000 115200
|
|
## Ready for binary (kermit) download to 0x60800000 at 115200 bps...
|
|
|
|
*** file: helloworld.efi
|
|
$ gkermit -iXvs helloworld.efi
|
|
G-Kermit 2.01, The Kermit Project, 2021-11-15
|
|
Escape back to your local Kermit and give a RECEIVE command.
|
|
|
|
KERMIT READY TO SEND...
|
|
|
|
|
*** exit status: 0 ***
|
|
## Total Size = 0x00000c00 = 3072 Bytes
|
|
## Start Addr = 0x60800000
|
|
=>
|
|
|
|
The transfer can be cancelled by pressing <CTRL+C>.
|
|
|
|
Configuration
|
|
-------------
|
|
|
|
The command is only available if CONFIG_CMD_LOADB=y.
|
|
|
|
Return value
|
|
------------
|
|
|
|
The return value $? is 0 (true) on success, 1 (false) on error.
|