IXXAT VCI-V2虚拟CAN接口编程手册

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"VCI_V2 Programmers Manual" VCI（Virtual CAN Interface）是一种软件接口，用于模拟物理CAN（Controller Area Network）控制器，允许开发者在没有实际硬件的情况下进行CAN通信的编程和测试。该手册是VCI-V2版本的程序员指南，由IXXAT公司提供，专注于工业和汽车通信领域。IXXAT是一家知名的自动化解决方案供应商，专门从事嵌入式通信技术。手册内容可能包括以下几个关键知识点： 1. **CAN控制器**：CAN控制器是负责处理CAN总线通信协议的硬件组件。手册可能会详细介绍VCI-V2如何抽象和模拟这个控制器，以便通过软件进行访问和控制。这包括数据帧的发送和接收，错误检测和恢复机制，以及CAN报文的仲裁过程。 2. **VCI API**：API（Application Programming Interface）是供开发者使用的函数集合，用于与VCI-V2接口进行交互。手册会详述这些API函数的功能、参数、返回值和使用示例，帮助开发者理解和实现CAN通信功能。 3. **CANopen**：CANopen是基于CAN的一种高层通信协议，主要用于工业自动化设备间的通信。手册可能包含关于如何利用VCI-V2支持CANopen的说明，包括对象字典、NMT（Network Management)服务、SDO（Service Data Objects）和PDO（Process Data Objects）的使用方法。 4. **实例代码**：为了帮助开发者快速上手，手册会提供实际的编程示例，可能包括C、C++或其他语言的代码片段，展示如何初始化VCI接口，建立连接，发送和接收CAN消息，以及如何处理CANopen相关操作。 5. **技术支持**：IXXAT提供了详细的技术支持联系方式，包括传真、电子邮件和互联网，以帮助解决使用VCI-V2过程中遇到的问题。 6. **版权和许可**：手册强调了文档的复制和分发需要IXXAT公司的明确许可，并提醒用户IXXAT保留更改技术数据的权利，同时也遵循一般商业条件和许可证协议。手册的目标读者是需要开发或调试CAN系统，尤其是采用CANopen协议的软件工程师。通过深入理解VCI-V2编程手册，开发者能够有效地集成和优化他们的CAN通信解决方案。

VCI-V2 Programmers Manual, Version 2.7

Introduction

created, so that pre-sorting can already be carried out by the VCI. All messages

recorded in a Receive queue are provided with a time stamp.

If due to the structure of the application program a regular polling of the Receive

queue(s) is not useful or not possible, the application can be informed via a Call-

back-function. The time of informing can be configured and depends on two

events of which one must occur to trigger the callback:

• A certain number of entries is present in a queue ("high water mark" is

reached)

• After a certain amount of time has expired (Timeout function).

The Call-back-function is called up from the Interrupt-thread of the VCI. This gives

rise to several limitations:

• In the Call-back-function no time-critical calculations should be carried out, as

otherwise CAN-messages may be lost.

• They are located in the Call-back-function in the context of the Interrupt-

threads. An attempt to access data from its application may fail for this

reason.

One way to uncouple Call-back from its application is to start an application-

thread for processing a queue. Incoming CAN-messages are signalised in their

Call-back-function by the setting of an event. The application-thread waits for

this event and carries out processing after the Event has been set. After the

processing step it returns to wait mode.

The maximum number of Receive queues which can be configured is 16 per CAN-

Controller.

1.6.3 Transmit queues

Messages (data and data requests) from the application are normally sent via

Transmit queues. In this way, when making a request to send, the application

does not need to wait until the CAN-Controller is ready to transmit. Servicing of

the Transmit queue(s) is carried out by the microcontroller of the active PC/CAN-

interfaces or with passive PC/CAN-interfaces by the Interrupt routine of the PC.

Several queues of different sizes (number of messages) and different priority can

be created. The different priorities of the queues determine the order in which

they are processed by the microcontroller.

The maximum number of Transmit queues per CAN-Controller which can be

configured is 8.

1.6.4 Remote buffers

If data are to be kept available for requests by other nodes, they can be entered

in so-called Remote buffers. If a request message is received (Remote frame) with

appropriate identifier, the data are taken from the buffer and sent. The

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IXXAT VCI-V2虚拟CAN接口编程手册

ControlCAN_controlCAN.dll_vci_opendevice_controlcan_周立功CANlabvie

周立功USBCAN-2A接口卡函数库使用说明

VCI_INIT_CONFIG、VCI_CAN_OBJ

>> mex VCI_OpenDevice.cpp 使用 'MinGW64 Compiler (C++)' 编译。 错误使用 mex C:\Users\Mary\AppData\Local\Temp\mex_44629740861637_2128\VCI_OpenDevice.obj:VCI_OpenDevice.cpp:(.text+0x9a): undefined reference to `VCI_OpenDevice' collect2.exe: error: ld returned 1 exit status

VCi.rar_VCI_visual c

VCI_3_5_2_4072.exe

按麒麟系统上有VCI_USBCAN_E_U 驱动 但是就是报没有找到VCI_USBCAN_E_U 会有那些原因

错误使用 mex C:\Users\Mary\AppData\Local\Temp\mex_41277296402671_16632\VCI_OpenDevice.obj:VCI_OpenDevice.cpp:(.text+0x9a): undefined reference to `VCI_OpenDevice' collect2.exe: error: ld returned 1 exit status

使用 'MinGW64 Compiler (C++)' 编译。 错误使用 mex C:\Users\Mary\AppData\Local\Temp\mex_33167977025197_16632\VCI_OpenDevice.obj:VCI_OpenDevice.cpp:(.text+0x9a): undefined reference to `VCI_OpenDevice' collect2.exe: error: ld returned 1 exit status

error: expected initializer before ‘VCI_OpenDevice’ EXTERNC DWORD __stdcall VCI_OpenDevice(DWORD DeviceType,DWORD DeviceInd,DWORD Reserved);

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>> mex VCI_OpenDevice.cpp 使用 'MinGW64 Compiler (C++)' 编译。错误使用 mex C:\Users\Mary\AppData\Local\Temp\mex_44629740861637_2128\VCI_OpenDevice.obj:VCI_OpenDevice.cpp:(.text+0x9a): undefined reference to `VCI_OpenDevice' collect2.exe: error: ld returned 1 exit status

按麒麟系统上有VCI_USBCAN_E_U 驱动但是就是报没有找到VCI_USBCAN_E_U 会有那些原因

使用 'MinGW64 Compiler (C++)' 编译。错误使用 mex C:\Users\Mary\AppData\Local\Temp\mex_33167977025197_16632\VCI_OpenDevice.obj:VCI_OpenDevice.cpp:(.text+0x9a): undefined reference to `VCI_OpenDevice' collect2.exe: error: ld returned 1 exit status