| Heinrich Schuchardt | a3ad307 | 2021-01-22 19:18:01 +0100 | [diff] [blame] | 1 | .. SPDX-License-Identifier: GPL-2.0+: |
| 2 | |
| 3 | loady command |
| 4 | ============= |
| 5 | |
| 6 | Synopsis |
| 7 | -------- |
| 8 | |
| 9 | :: |
| 10 | |
| 11 | loady [addr [baud]] |
| 12 | |
| 13 | Description |
| 14 | ----------- |
| 15 | |
| 16 | The loady command is used to transfer a file to the device via the serial line |
| 17 | using the YMODEM protocol. |
| 18 | |
| 19 | The number of transferred bytes is saved in environment variable filesize. |
| 20 | |
| 21 | addr |
| 22 | load address, defaults to environment variable loadaddr or if loadaddr is |
| 23 | not set to configuration variable CONFIG_SYS_LOAD_ADDR |
| 24 | |
| 25 | baud |
| 26 | baud rate for the ymodem transmission. After the transmission the baud |
| 27 | rate is reset to the original value. |
| 28 | |
| 29 | Example |
| 30 | ------- |
| 31 | |
| 32 | In the example below the terminal emulation program picocom was used to |
| 33 | transfer a file to the device. |
| 34 | |
| 35 | After entering the loady command the key sequence <CTRL-A><CTRL-S> is used to |
| 36 | let picocom prompt for the file name. Picocom invokes the program sz for the |
| 37 | file transfer. |
| 38 | |
| 39 | :: |
| 40 | |
| 41 | => loady 80064000 115200 |
| 42 | ## Ready for binary (ymodem) download to 0x80064000 at 115200 bps... |
| 43 | C |
| 44 | *** file: BOOTRISCV64.EFI |
| 45 | $ sz -b -vv BOOTRISCV64.EFI |
| 46 | Sending: BOOTRISCV64.EFI |
| 47 | Bytes Sent: 398976 BPS:7883 |
| 48 | Sending: |
| 49 | Ymodem sectors/kbytes sent: 0/ 0k |
| 50 | Transfer complete |
| 51 | |
| 52 | *** exit status: 0 *** |
| 53 | /1(CAN) packets, 4 retries |
| 54 | ## Total Size = 0x0006165f = 398943 Bytes |
| 55 | => echo ${filesize} |
| 56 | 6165f |
| 57 | => |
| 58 | |
| 59 | Configuration |
| 60 | ------------- |
| 61 | |
| 62 | The command is only available if CONFIG_CMD_LOADB=y. |
| 63 | |
| 64 | Return value |
| 65 | ------------ |
| 66 | |
| 67 | The return value $? is always 0 (true). |