dw网页制作素材网站,兰州优秀网站推广,江浦网站建设,asp.net网站打不开html页面以下详细描述了一个longin记录设备支持模块编写过程以及用于测试这个模块的IOC的操作步骤#xff1a;
1#xff09;创建一个目录lidriver用于保存这个IOC目录结构#xff1a;
orangepiorangepi4-lts:~/epics$ mkdir lidriver
orangepiorangepi4-lts:~/epics$ ls
example …以下详细描述了一个longin记录设备支持模块编写过程以及用于测试这个模块的IOC的操作步骤
1创建一个目录lidriver用于保存这个IOC目录结构
orangepiorangepi4-lts:~/epics$ mkdir lidriver
orangepiorangepi4-lts:~/epics$ ls
example lidriver2 进入上一步创建的目录并且使用makeBaseApp.pl脚本创建这个IOC应用程序目录结构和启动目录
orangepiorangepi4-lts:~/epics/lidriver$ makeBaseApp.pl -t ioc lidriver
orangepiorangepi4-lts:~/epics/lidriver$ makeBaseApp.pl -i -t ioc lidriver
Using target architecture linux-aarch64 (only one available)
The following applications are available:lidriver
What application should the IOC(s) boot?
The default uses the IOCs name, even if not listed above.
Application name?
orangepiorangepi4-lts:~/epics/lidriver$ ls
configure iocBoot lidriverApp Makefile
3 进入lidriverApp/src目录编写设备支持源文件以及对应的支持文件并且编辑对应目录下的Makefile文件
a) devLiRnd.c
#include stdlib.h
#include stdio.h
#include string.h
#include time.h
#include math.h#include alarm.h
#include dbDefs.h
#include dbAccess.h
#include recGbl.h
#include devSup.h
#include longinRecord.h
#include epicsExport.htypedef struct devData{int upper_limit;int lower_limit;
}devData;static int lirand(devData * data)
{int ret;int mid data-upper_limit - data-lower_limit 1;ret rand() % mid data-lower_limit;return ret;
}
/* Create the dset for devLiRnd */
static long init_record(dbCommon *pcommon);
static long read_longin(longinRecord *prec);longindset devLiRnd {{5, NULL, NULL, init_record, NULL},read_longin
};
epicsExportAddress(dset, devLiRnd);static long init_record(dbCommon *pcommon)
{longinRecord *prec (longinRecord *)pcommon;devData * data;if (prec-inp.type ! CONSTANT){recGblRecordError(S_db_badField, prec, devLiRnd(init_record)illegal INP INP field);return S_db_badField;}data (devData *)malloc(sizeof(devData));if (fabs(prec-hihi) 1e-5){data-upper_limit 100;}else{data-upper_limit (int) prec-hihi;}if (fabs(prec-lolo) 1e-5){data-lower_limit 0;}else{data-lower_limit (int)prec-lolo;}srand((unsigned int)time(NULL));prec-dpvt (void *)data;return 0;
}static long readLocked(struct link *pinp, void *dummy)
{longinRecord *prec (longinRecord *) pinp-precord;long status 0;devData * data (devData *) prec-dpvt;prec-val lirand(data);if (dbLinkIsConstant(prec-tsel) prec-tse epicsTimeEventDeviceTime)dbGetTimeStamp(pinp, prec-time);return status;
}static long read_longin(longinRecord *prec)
{long status dbLinkDoLocked(prec-inp, readLocked, NULL);if (status S_db_noLSET)status readLocked(prec-inp, NULL);return status;
}
b devLiRnd.dbd
device(longin, CONSTANT, devLiRnd, random)
c) 将以上两个文件名添加到相同目录下的Makefile文件中
...lidriver_DBD devLiRnd.dbdlidriver_SRCS devLiRnd.c...4在idriverApp/Db文件下增加一个数据库实例文件longintest.db并且编辑此路径下的Makefile文件
alongintest.db
record(longin, $(P):LiRandom1)
{field(DESC, Random Test)field(DTYP, random)field(INP, 1)field(HIHI, 50)field(LOLO, 0)field(SCAN, 1 second)
}record(longin, $(P):LiRandom2)
{field(DESC, Random Test)field(DTYP, random)field(INP, 1)field(HIHI, 100)field(LOLO, 51)field(SCAN, 1 second)
}
b) 将上面的文件名添加到Makefile中
DB longintest.db
5) 回到这个IOC的顶层目录lidriver 执行make进行编译。
6进入启动目录iocBoot/ioclidriver编译启动脚本st.cmd
#!../../bin/linux-aarch64/lidriver#- You may have to change lidriver to something else
#- everywhere it appears in this file envPathscd ${TOP}## Register all support components
dbLoadDatabase dbd/lidriver.dbd
lidriver_registerRecordDeviceDriver pdbbase## Load record instances
dbLoadRecords(db/longintest.db,PTest)cd ${TOP}/iocBoot/${IOC}
iocInit
7启动这个IOC用dbl查看加载的记录实例
orangepiorangepi5:/usr/local/EPICS/program/lidriver/iocBoot/ioclidriver$ ../../bin/linux-aarch64/lidriver st.cmd
#!../../bin/linux-aarch64/lidriverenvPaths
...
############################################################################
iocRun: All initialization complete
## Start any sequence programs
#seq sncxxx,userorangepi
epics dbl
Test:LiRandom1
Test:LiRandom2
epics
8) 用通道访问命令camonitor查看以上两个记录实例的值
orangepiorangepi4-lts:~$ camonitor Test:LiRandom1 Test:LiRandom2
Test:LiRandom1 2023-08-28 11:15:43.229290 32
Test:LiRandom2 2023-08-28 11:15:43.229302 61
Test:LiRandom1 2023-08-28 11:15:44.229311 6
Test:LiRandom2 2023-08-28 11:15:44.229398 57
Test:LiRandom1 2023-08-28 11:15:45.229424 13
Test:LiRandom2 2023-08-28 11:15:45.229458 75
....
实录实例Test:LiRandom1和Test:LiRandom2的值每秒钟随机变化一次Test:LiRandom1的变化范围在0~50而Test:LiRandom2的变化范围为51-100。
