Communication in MATLAB

Use an A2L file to allow communication between XCP client and server modules via XCP

A2L文件是定义ECU实现的特殊说明文件。A2L文件中的信息允许XCP客户端通过XCP连接与服务器模块通信。格式化的文本文件包含事件和测量定义以及其他配置信息，用于获取和刺激数据并执行其他功能。

要与XCP服务器进行通信，A2L文件（ECU描述文件）必须至少包含以下属性信息：

ProtocolLayerInfo
TransportLayerCANInfo
Measurements
DAQInfo和事件
- MATLAB^®:DAQInfo和事件content is required if using dynamic DAQ list functionality.
- 万博1manbetx^®：因为XCP CAN Data Acquisitionblock uses dynamic DAQ list functionality,DAQInfo和事件content is required.

您可以使用CAN协议将XCP客户端连接到服务器模块。这使您可以在服务器模块上使用事件和访问测量。跟着XCP Database and Communication Workflow要学习如何使用XCP连接到设备。

您可以执行直接读取或写入服务器模块上的内存。或者，创建动态数据刺激列表并将测量结果分配给列表，然后读取获得的DAQ数据并写入刺激数据。

Functions

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A2L文件

`xcpA2L`	访问A2L文件
`GetCharacteristicinfo`	从A2L文件中获取有关特定特征的信息
`GetMeasurementInfo`	从A2L文件中获取有关特定测量的信息
`getEventInfo`	Get event information about specific event from A2L file

Hardware Connection

`xcpChannel`	创建XCP频道
`connect`	Connect XCP channel to server module
`disconnect`	Disconnect from server module
`已连接`	Connection status

Read and Write Data to Memory

`readCharacteristic`	Read and scale specified characteristic value from direct memory
`撰写的`	Scale and write specified characteristic value to direct memory
`readMeasurement`	Read and scale specified measurement value from direct memory
`writeMeasurement`	Scale and write specified measurement value to direct memory
`readAxis`	Read and scale specified axis value from direct memory
`writeAxis`	Scale and write specified axis value to direct memory
`readSingleValue`	从内存中阅读指定测量的单个样本
`writeSingleValue`	Write single sample to specified measurement

Acquire and Stimulate Measurements

`createMeasurementList`	Create measurement list for XCP channel
`viewMeasurementLists`	查看XCP频道上配置的测量列表
`合并清单`	Remove all measurement lists from XCP channel
`startMeasurement`	Start configured DAQ and STIM lists
`iSmoesurementrunn`	指出测量是否活跃
`readDAQ`	从DAQ列表中读取指定测量的缩放样本
`readdaqlistdata`	从DAQ列表中读取指定测量的样本
`写作`	Write scaled value of specified measurement to STIM list
`写入imlistdata`	写入指定的测量
`停止措施`	Stop configured DAQ and STIM lists

Properties

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File and Channel Objects

XCP.A2L属性	Properties of the`xcp.A2L`文件对象
XCP.CHANNEL属性	Properties of the`XCP.CHANNEL`object

Topics

Hardware Connection

XCP Hardware Connection
Diagram for connecting XCP client and server.

Read and Write Data to Memory

Read a Calibrated Measurement
Translate pedal position to read a calibrated torque demand measurement.
阅读一个值
Read a single value by name directly from memory.
写一个值
Write a single value by name directly to memory.

Acquire and Stimulate Measurements

通过动态DAQ列表获取测量数据
Create a dynamic data acquisition list and read measurements from the list events.
通过动态刺激列表刺激测量数据
Create a dynamic data stimulation list and assign measurements to the list events.

Featured Examples

开始使用A2L文件

Access and view information stored in A2L-files.

打开实时脚本

Read XCP Measurements with Direct Acquisition

Use the XCP protocol capability to connect and acquire data from a Simulink model deployed to a Windows executable. The example reads measurement parameters of the model using TCP and direct memory access. XCP is a high-level protocol used for accessing and modifying internal parameters and variables of a model, algorithm, or ECU. For more information, refer to the ASAM standards.

打开实时脚本

使用动态DAQ列表读取XCP测量

Use the XCP protocol capability to connect and acquire data from a Simulink model deployed to a Windows executable. The example reads measurement parameters of the model using TCP and dynamic DAQ lists. XCP is a high-level protocol used for accessing and modifying internal parameters and variables of a model, algorithm, or ECU. For more information, refer to the ASAM standards.

打开实时脚本

校准XCP特征

Use the XCP protocol capability to connect and calibrate available characteristic data from a Simulink model deployed to a Windows executable. The example writes to modify the parameters of the model using TCP and direct memory access, and compares the measurements before and after calibration. XCP is a high-level protocol used for accessing and modifying internal parameters and variables of a model, algorithm, or ECU. For more information, refer to the ASAM standards.

打开实时脚本