| .. SPDX-License-Identifier: GPL-2.0+: | |
| .. index:: | |
| single: tftpput (command) | |
| tftpput command | |
| =============== | |
| Synopsis | |
| -------- | |
| :: | |
| tftpput address size [[hostIPaddr:]filename] | |
| Description | |
| ----------- | |
| The tftpput command is used to transfer a file to a TFTP server. | |
| By default the destination port is 69 and the source port is pseudo-random. | |
| The environment variable *tftpsrcp* can be used to set the source port and the | |
| environment variable *tftpdstp* can be used to set the destination port. | |
| address | |
| memory address where the data starts | |
| size | |
| number of bytes to be transferred | |
| hostIPaddr | |
| IP address of the TFTP server, defaults to the value of environment | |
| variable *serverip* | |
| filename | |
| path of the file to be written. If not provided, the client's IP address is | |
| used to construct a default file name, e.g. C0.A8.00.28.img for IP address | |
| 192.168.0.40. | |
| Example | |
| ------- | |
| In the example the following steps are executed: | |
| * setup client network address | |
| * load a file from the SD-card | |
| * send the file via TFTP to a server | |
| :: | |
| => setenv autoload no | |
| => dhcp | |
| BOOTP broadcast 1 | |
| DHCP client bound to address 192.168.1.40 (7 ms) | |
| => load mmc 0:1 $loadaddr test.txt | |
| 260096 bytes read in 13 ms (19.1 MiB/s) | |
| => tftpput $loadaddr $filesize 192.168.1.3:upload/test.txt | |
| Using ethernet@1c30000 device | |
| TFTP to server 192.168.1.3; our IP address is 192.168.1.40 | |
| Filename 'upload/test.txt'. | |
| Save address: 0x42000000 | |
| Save size: 0x3f800 | |
| Saving: ################# | |
| 4.4 MiB/s | |
| done | |
| Bytes transferred = 260096 (3f800 hex) | |
| => | |
| Configuration | |
| ------------- | |
| The command is only available if CONFIG_CMD_TFTPPUT=y. | |
| CONFIG_TFTP_BLOCKSIZE defines the size of the TFTP blocks sent. It defaults | |
| to 1468 matching an ethernet MTU of 1500. | |
| CONFIG_TFTP_WINDOWSIZE can be used to set the TFTP window size of transmits | |
| after which an ACK response is required. The window size defaults to 1. | |
| If CONFIG_TFTP_TSIZE=y, the progress bar is limited to 50 '#' characters. | |
| Otherwise an '#' is written per UDP package which may decrease performance. |