Anycloud37D平台移植lrzsz（用于串口传输文件）
1. 系统环境：
Distributor ID: Ubuntu
Description: Ubuntu 22.04.3 LTS
Release: 22.04
Codename: jammy
2. 源码下载地址：
http://freecode.com/projects/lrzsz/
或者
https://ohse.de/uwe/software/lrzsz.html
3. 编译:
tar xzvf lrzsz-0.12.20.tar.gz
cd lrzsz-0.12.20
CC=arm-anykav500-linux-uclibcgnueabi-gcc ./configure --prefix=/home/linux/tmp/lrzsz/install --host=arm-anykav500-linux-uclibcgnueabi
make
make install
最后生成 bin 、man 、 share 三个目录，bin目录下有lrb 、 lrx 、 lrz 、 lsb 、 lsx 、lsz几个目标文件：
linux@linux-MS-7D22:~/tmp/lrzsz/install$ ls
bin man share
linux@linux-MS-7D22:~/tmp/lrzsz/install$ ls bin/
lrb lrx lrz lsb lsx lsz
设备端测试工具：
/mnt/install/bin # ./lsz -h
lsz version 0.12.20
Usage: lsz [options] file ...
or: lsz [options] -{c|i} COMMAND
Send file(s) with ZMODEM/YMODEM/XMODEM protocol
(X) = option applies to XMODEM only
(Y) = option applies to YMODEM only
(Z) = option applies to ZMODEM only
-+, --append append to existing destination file (Z)
-2, --twostop use 2 stop bits
-4, --try-4k go up to 4K blocksize
--start-4k start with 4K blocksize (doesn't try 8)
-8, --try-8k go up to 8K blocksize
--start-8k start with 8K blocksize
-a, --ascii ASCII transfer (change CR/LF to LF)
-b, --binary binary transfer
-B, --bufsize N buffer N bytes (N==auto: buffer whole file)
-c, --command COMMAND execute remote command COMMAND (Z)
-C, --command-tries N try N times to execute a command (Z)
-d, --dot-to-slash change '.' to '/' in pathnames (Y/Z)
--delay-startup N sleep N seconds before doing anything
-e, --escape escape all control characters (Z)
-E, --rename force receiver to rename files it already has
-f, --full-path send full pathname (Y/Z)
-i, --immediate-command CMD send remote CMD, return immediately (Z)
-h, --help print this usage message
-k, --1k send 1024 byte packets (X)
-L, --packetlen N limit subpacket length to N bytes (Z)
-l, --framelen N limit frame length to N bytes (l>=L) (Z)
-m, --min-bps N stop transmission if BPS below N
-M, --min-bps-time N for at least N seconds (default: 120)
-n, --newer send file if source newer (Z)
-N, --newer-or-longer send file if source newer or longer (Z)
-o, --16-bit-crc use 16 bit CRC instead of 32 bit CRC (Z)
-O, --disable-timeouts disable timeout code, wait forever
-p, --protect protect existing destination file (Z)
-r, --resume resume interrupted file transfer (Z)
-R, --restricted restricted, more secure mode
-q, --quiet quiet (no progress reports)
-s, --stop-at {HH:MM|+N} stop transmission at HH:MM or in N seconds
--tcp build a TCP connection to transmit files
--tcp-server open socket, wait for connection
-u, --unlink unlink file after transmission
-U, --unrestrict turn off restricted mode (if allowed to)
-v, --verbose be verbose, provide debugging information
-w, --windowsize N Window is N bytes (Z)
-X, --xmodem use XMODEM protocol
-y, --overwrite overwrite existing files
-Y, --overwrite-or-skip overwrite existing files, else skip
--ymodem use YMODEM protocol
-Z, --zmodem use ZMODEM protocol
short options use the same arguments as the long ones
常用参数：
-b 以二进制方式，默认为文本方式。（Binary (tell it likeit is) file transfer override.）
-e 对所有控制字符转义。（Force sender to escape allcontrol characters; normally XON, XOFF, DLE, CR-@-CR, and Ctrl-X are escaped.）
如果要保证上传的文件内容在服务器端保存之后与原始文件一致，最好同时设置这两个标志，如下所示方式使用：
rz -be