前言
本文介绍【米尔MYD-YG2LX开发板】在工控领域的应用
，实现基于SOEM的EtherCAT主站。开发环境基于WSL2.
下载代码
git clone https://github.com/OpenEtherCATsociety/SOEM
PC端
编译
cd SOEM/
export CC=gcc
mkdir build_pc
cd build_pc/
cmake ..
lhj@lhj:~/SOEM/build_pc$ cmake ..
-- The C compiler identification is GNU 9.4.0
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- OS is linux
-- LIB_DIR: lib
-- Configuring done
-- Generating done
-- Build files have been written to: /home/lhj/SOEM/build_pc
lhj@lhj:~/SOEM/build_pc$
make
lhj@lhj:~/SOEM/build_pc$ make
Scanning dependencies of target soem
[ 4%] Building C object CMakeFiles/soem.dir/soem/ethercatbase.c.o
[ 9%] Building C object CMakeFiles/soem.dir/soem/ethercatcoe.c.o
[ 14%] Building C object CMakeFiles/soem.dir/soem/ethercatconfig.c.o
[ 19%] Building C object CMakeFiles/soem.dir/soem/ethercatdc.c.o
[ 23%] Building C object CMakeFiles/soem.dir/soem/ethercateoe.c.o
[ 28%] Building C object CMakeFiles/soem.dir/soem/ethercatfoe.c.o
[ 33%] Building C object CMakeFiles/soem.dir/soem/ethercatmain.c.o
[ 38%] Building C object CMakeFiles/soem.dir/soem/ethercatprint.c.o
[ 42%] Building C object CMakeFiles/soem.dir/soem/ethercatsoe.c.o
[ 47%] Building C object CMakeFiles/soem.dir/osal/linux/osal.c.o
[ 52%] Building C object CMakeFiles/soem.dir/oshw/linux/nicdrv.c.o
[ 57%] Building C object CMakeFiles/soem.dir/oshw/linux/oshw.c.o
[ 61%] Linking C static library libsoem.a
[ 61%] Built target soem
Scanning dependencies of target simple_ng
[ 66%] Building C object test/simple_ng/CMakeFiles/simple_ng.dir/simple_ng.c.o
[ 71%] Linking C executable simple_ng
[ 71%] Built target simple_ng
Scanning dependencies of target slaveinfo
[ 76%] Building C object test/linux/slaveinfo/CMakeFiles/slaveinfo.dir/slaveinfo.c.o
[ 80%] Linking C executable slaveinfo
[ 80%] Built target slaveinfo
Scanning dependencies of target eepromtool
[ 85%] Building C object test/linux/eepromtool/CMakeFiles/eepromtool.dir/eepromtool.c.o
[ 90%] Linking C executable eepromtool
[ 90%] Built target eepromtool
Scanning dependencies of target simple_test
[ 95%] Building C object test/linux/simple_test/CMakeFiles/simple_test.dir/simple_test.c.o
[100%] Linking C executable simple_test
[100%] Built target simple_test
lhj@lhj:~/SOEM/build_pc$
部署
生成的文件如下
其中libsoem.a为库文件
test/linux/下的
simple_test，slaveinfo，eepromtool为测试Demo。
lhj@lhj:~/SOEM/build_pc$ tree .
.
|-- CMakeCache.txt
|-- CMakeFiles
| |-- 3.16.3
| | |-- CMakeCCompiler.cmake
| | |-- CMakeDetermineCompilerABI_C.bin
| | |-- CMakeSystem.cmake
| | `-- CompilerIdC
| | |-- CMakeCCompilerId.c
| | |-- a.out
| | `-- tmp
| |-- CMakeDirectoryInformation.cmake
| |-- CMakeOutput.log
| |-- CMakeTmp
| |-- Export
| | `-- share
| | `-- soem
| | `-- cmake
| | |-- soemConfig-noconfig.cmake
| | `-- soemConfig.cmake
| |-- Makefile.cmake
| |-- Makefile2
| |-- TargetDirectories.txt
| |-- cmake.check_cache
| |-- progress.marks
| `-- soem.dir
| |-- C.includecache
| |-- DependInfo.cmake
| |-- build.make
| |-- cmake_clean.cmake
| |-- cmake_clean_target.cmake
| |-- depend.internal
| |-- depend.make
| |-- flags.make
| |-- link.txt
| |-- osal
| | `-- linux
| | `-- osal.c.o
| |-- oshw
| | `-- linux
| | |-- nicdrv.c.o
| | `-- oshw.c.o
| |-- progress.make
| `-- soem
| |-- ethercatbase.c.o
| |-- ethercatcoe.c.o
| |-- ethercatconfig.c.o
| |-- ethercatdc.c.o
| |-- ethercateoe.c.o
| |-- ethercatfoe.c.o
| |-- ethercatmain.c.o
| |-- ethercatprint.c.o
| `-- ethercatsoe.c.o
|-- Makefile
|-- cmake_install.cmake
|-- libsoem.a
`-- test
|-- linux
| |-- eepromtool
| | |-- CMakeFiles
| | | |-- CMakeDirectoryInformation.cmake
| | | |-- eepromtool.dir
| | | | |-- C.includecache
| | | | |-- DependInfo.cmake
| | | | |-- build.make
| | | | |-- cmake_clean.cmake
| | | | |-- depend.internal
| | | | |-- depend.make
| | | | |-- eepromtool.c.o
| | | | |-- flags.make
| | | | |-- link.txt
| | | | `-- progress.make
| | | `-- progress.marks
| | |-- Makefile
| | |-- cmake_install.cmake
| | `-- eepromtool
| |-- simple_test
| | |-- CMakeFiles
| | | |-- CMakeDirectoryInformation.cmake
| | | |-- progress.marks
| | | `-- simple_test.dir
| | | |-- C.includecache
| | | |-- DependInfo.cmake
| | | |-- build.make
| | | |-- cmake_clean.cmake
| | | |-- depend.internal
| | | |-- depend.make
| | | |-- flags.make
| | | |-- link.txt
| | | |-- progress.make
| | | `-- simple_test.c.o
| | |-- Makefile
| | |-- cmake_install.cmake
| | `-- simple_test
| `-- slaveinfo
| |-- CMakeFiles
| | |-- CMakeDirectoryInformation.cmake
| | |-- progress.marks
| | `-- slaveinfo.dir
| | |-- C.includecache
| | |-- DependInfo.cmake
| | |-- build.make
| | |-- cmake_clean.cmake
| | |-- depend.internal
| | |-- depend.make
| | |-- flags.make
| | |-- link.txt
| | |-- progress.make
| | `-- slaveinfo.c.o
| |-- Makefile
| |-- cmake_install.cmake
| `-- slaveinfo
`-- simple_ng
|-- CMakeFiles
| |-- CMakeDirectoryInformation.cmake
| |-- progress.marks
| `-- simple_ng.dir
| |-- C.includecache
| |-- DependInfo.cmake
| |-- build.make
| |-- cmake_clean.cmake
| |-- depend.internal
| |-- depend.make
| |-- flags.make
| |-- link.txt
| |-- progress.make
| `-- simple_ng.c.o
|-- Makefile
|-- cmake_install.cmake
`-- simple_ng
29 directories, 100 files
lhj@lhj:~/SOEM/build_pc$
开发板端
编译
cd SOEM/
export CC=aarch64-linux-gnu-gcc
mkdir build
cd build/
cmake ..
lhj@lhj:~/SOEM/build$ cmake ..
-- The C compiler identification is GNU 9.4.0
-- Check for working C compiler: /usr/bin/aarch64-linux-gnu-gcc
-- Check for working C compiler: /usr/bin/aarch64-linux-gnu-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- OS is linux
-- LIB_DIR: lib
-- Configuring done
-- Generating done
-- Build files have been written to: /home/lhj/SOEM/build
lhj@lhj:~/SOEM/build$
make
lhj@lhj:~/SOEM/build$ make
Scanning dependencies of target soem
[ 4%] Building C object CMakeFiles/soem.dir/soem/ethercatbase.c.o
[ 9%] Building C object CMakeFiles/soem.dir/soem/ethercatcoe.c.o
[ 14%] Building C object CMakeFiles/soem.dir/soem/ethercatconfig.c.o
[ 19%] Building C object CMakeFiles/soem.dir/soem/ethercatdc.c.o
[ 23%] Building C object CMakeFiles/soem.dir/soem/ethercateoe.c.o
[ 28%] Building C object CMakeFiles/soem.dir/soem/ethercatfoe.c.o
[ 33%] Building C object CMakeFiles/soem.dir/soem/ethercatmain.c.o
[ 38%] Building C object CMakeFiles/soem.dir/soem/ethercatprint.c.o
[ 42%] Building C object CMakeFiles/soem.dir/soem/ethercatsoe.c.o
[ 47%] Building C object CMakeFiles/soem.dir/osal/linux/osal.c.o
[ 52%] Building C object CMakeFiles/soem.dir/oshw/linux/nicdrv.c.o
[ 57%] Building C object CMakeFiles/soem.dir/oshw/linux/oshw.c.o
[ 61%] Linking C static library libsoem.a
[ 61%] Built target soem
Scanning dependencies of target simple_ng
[ 66%] Building C object test/simple_ng/CMakeFiles/simple_ng.dir/simple_ng.c.o
[ 71%] Linking C executable simple_ng
[ 71%] Built target simple_ng
Scanning dependencies of target slaveinfo
[ 76%] Building C object test/linux/slaveinfo/CMakeFiles/slaveinfo.dir/slaveinfo.c.o
[ 80%] Linking C executable slaveinfo
[ 80%] Built target slaveinfo
Scanning dependencies of target eepromtool
[ 85%] Building C object test/linux/eepromtool/CMakeFiles/eepromtool.dir/eepromtool.c.o
[ 90%] Linking C executable eepromtool
[ 90%] Built target eepromtool
Scanning dependencies of target simple_test
[ 95%] Building C object test/linux/simple_test/CMakeFiles/simple_test.dir/simple_test.c.o
[100%] Linking C executable simple_test
[100%] Built target simple_test
lhj@lhj:~/SOEM/build$
部署
cp libsoem.a /mnt/d
cp test/linux/simple_test/simple_test /mnt/d
cp test/linux/slaveinfo/slaveinfo /mnt/d
将上述文件rz导入开发板
chmod +x simple_test slaveinfo
运行
root@myir-yg2lx:~# ./slaveinfo eth0
SOEM (Simple Open EtherCAT Master)
Slaveinfo
Starting slaveinfo
ec_init on eth0 succeeded.
No slaves found!
End slaveinfo, close socket
End program
root@myir-yg2lx:~# ./simple_test eth0
SOEM (Simple Open EtherCAT Master)
Simple test
Starting simple test
ec_init on eth0 succeeded.
No slaves found!
End simple test, close socket
End program
root@myir-yg2lx:~#
总结
本开发板接口资源丰富，性能强，特别适合工控领域的应用，比如作为EtherCAT主站。由于没有从站，所以暂时未能演示和从站通讯的功能。
提升卡
变色卡
千斤顶
1/8 
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