厦门莫格电气自动化有限公司销售Honeywell霍尼韦尔620-0039您迈开询价的一小步，我还您成功的一大步。​620-0039620-0039620-0039在实际应用中，复杂的网络状况可能让设备网络产生异常（比如IP冲突），从而无法正常网络通信。通过重启设备可以***网络，本文介绍另外一个方法，在应用层不断电的情况下快速重置网络，***网络通信。手动重置网络进入板子控制面板->网络和拨号连接，可以看到板子现有网口的网络连接图标，下图以E***287为例，E***287有两个网口，分别为ENET1和ENET2。右键点击需要重置的网口图标，先选择禁用，可以看到图标显示X，同时板子网络灯停止闪烁。再次右键点击该图标，选择启用，图标***连接显示，可以观察到板子网络灯重新亮起。代码重置网络引用pw.h头文件，添加定义板子DEVICEIOCONTROL的相关宏定义。#defineDD_NDIS_DEVICE_NAMETEXT("NDS0:")#defineNDISPWR_DEVICE_NAMETEXT("NPW1:")#define_NDIS_CONTROL_CODE(request,method)\CTL_CODE(FILE_DEVICE_PHYSICAL_NETCARD,request,method,FILE_ANY_ACCESS)#defineWINCE_IOCTL_START8#defineIOCTL_NDIS_BIND_ADAPTER_NDIS_CONTROL_CODE(WINCE_IOCTL_START+4,METHOD_OUT_DIRECT)#defineIOCTL_NDIS_UNBIND_ADAPTER_NDIS_CONTROL_CODE(WINCE_IOCTL_START+5,METHOD_OUT_DIRECT)#defineIOCTL_NDIS_GET_ADAPTER_BINDINGS_NDIS_CONTROL_CODE(WINCE_IOCTL_START+8,METHOD_OUT_DIRECT)#defineFSCTL_NDISPWR_BASEFILE_DEVICE_NETWORK#define_NDISPWR_CTL_CODE(_Function,_Method,_Access)\CTL_CODE(FSCTL_NDISPWR_BASE,_Function,_Method,_Access)#defineIOCTL_NPW_S***E_POWER_STATE\_NDISPWR_CTL_CODE(0x200,METHOD_BUFFERED,FILE_ANY_ACCESS)首先调用电源管理设备NPW，通知它关闭网口电源（这里以ENET1为例）hNdisPwr=CreateFile(NDISPWR_DEVICE_NAME,0,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED,INVALID_HANDLE_VALUE);S***ePowerState.CePowerState=D4;cAdapterName=L”ENET1”;bRet=DeviceIoControl(hNdisPwr,IOCTL_NPW_S***E_POWER_STATE,&S***ePowerState,sizeof(NDISPWR_S***EPOWERSTATE),NULL,0x00,NULL,NULL);CloseHandle(hNdisPwr);如果网口有自己的电源管理，那么那么还应该调用以下代码。还是以ENET1为例，这里的字符串一定得是{98C5250D-C29A-4985-AE5F-AFE5367E5006}\ENET1这样的，并且需要两个\0结尾！TCHARszName[MAX_PATH]=L”ENET1”;intnChars;nChars=_sntprintf(szName,MAX_PATH-1,_T("%s\\%s"),PMCLASS_NDIS_MINIPORT,wcName);szName[MAX_PATH-1]=0;DWORDdwRet;dwRet=Se***vicePower(szName,POWER_NAME,D4);通知系统UNBIND网口BOOLDoNdisIOControl(DWORDdwCommand,LPVOIDpInBuffer,DWORDcbInBuffer,LPVOIDpOutBuffer,DWORD*pcbOutBuffer){HANDLEhNdis;BOOLfResult=FALSE;hNdis=::CreateFile(DD_NDIS_DEVICE_NAME,GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_ALWAYS,0,NULL);if(INVALID_HANDLE_VALUE!=hNdis){fResult=DeviceIoControl(hNdis,dwCommand,pInBuffer,cbInBuffer,pOutBuffer,(pcbOutBuffer?*pcbOutBuffer:0),pcbOutBuffer,NULL);CloseHandle(hNdis);}returnfResult;}…bRet=DoNdisIOControl(IOCTL_NDIS_UNBIND_ADAPTER,wcName,(_tcslen(wcName)+2)*sizeof(TCHAR),NULL,NULL);查询网络，确认一下禁用网络是否成功bRet=DoNdisIOControl(IOCTL_NDIS_GET_ADAPTER_BINDINGS,wcName,(_tcslen(wcName)+1)*sizeof(TCHAR),multiSz,&cbBuffer);return(multiSz[0]!=L'\0');让板子网口重新上电，这里上电不能直接使用D0，只能使用默认值PwrDeviceUnspecifiedhNdisPwr=CreateFile(NDISPWR_DEVICE_NAME,0,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED,INVALID_HANDLE_VALUE);S***ePowerState.CePowerState=PwrDeviceUnspecified;cAdapterName=L”ENET1”;bRet=DeviceIoControl(hNdisPwr,IOCTL_NPW_S***E_POWER_STATE,&S***ePowerState,sizeof(NDISPWR_S***EPOWERSTATE),NULL,0x00,NULL,NULL);CloseHandle(hNdisPwr);TCHARszName[MAX_PATH]=L”ENET1”;intnChars;nChars=_sntprintf(szName,MAX_PATH-1,_T("%s\\%s"),PMCLASS_NDIS_MINIPORT,wcName);szName[MAX_PATH-1]=0;DWORDdwRet;dwRet=Se***vicePower(szName,POWER_NAME,PwrDeviceUnspecified);通知系统BIND网口bRet=DoNdisIOControl(IOCTL_NDIS_BIND_ADAPTER,wcName,(_tcslen(wcName)+2)*sizeof(TCHAR),NULL,NULL);查询网络，确认一下网络启动是否成功bRet=DoNdisIOControl(IOCTL_NDIS_GET_ADAPTER_BINDINGS,wcName,(_tcslen(wcName)+1)*sizeof(TCHAR),multiSz,&cbBuffer);return(multiSz[0]!=L'\0');例程里已经将以上代码封装到enet.h，使用以下代码可以简单重置网络#include"enet.h"VoidResetENET（）{EnableENET(FALSE);EnableENET(TRUE);}在重置网络前，建议先关闭该网口现有的socket连接)