Xcp Protocol Pdf

The reference book „XCP – The Standard Protocol for ECU Development” describes the basics and areas of application of the XCP measurement and calibration protocol. The authors describe: In addition to supporting other transport layers, the successor to the CCP protocol contains many functional improvements such as:[2] The ASAM Measurement, Calibration and Diagnostic ProtocolMCD-1 Universal Measurement and Calibration Protocol (ASAM Standard)XCP A public specification developed by experts in a consensus-driven defined development process and published by managers representing a significant part of industry, for which it is intended to give the specification the necessary legitimacy to be called a „standard”. The standard defines the access to parameters and the process of acquiring data from internal memories of ECUs and external sensors. Variables measured using memory addresses. The properties and memory addresses of this data are described in the ASAM MCD-2 MC LanguageA2L-Is a description of how information is encoded and structured and obtains a specific syntax for storage in a computer file.file format standardized by ASAM Measurement, Calibration and Diagnostics™ -2 Measurement and Calibration™ A public specification developed by experts in a defined consensus-oriented development process was developed and published by public servants, who represent a significant part of the industry for which it is intended, giving the specification the legitimacy to be called a „standard”. The ASAM MCD-2 MC LanguageA2L file contains all the information necessary to properly access and interpret the data transmitted via the XCP protocol of the XCP protocol of the Universal Measurement and Calibration Protocol (ASAM Standard). This ASAM MCD-2 MC LanguageA2L file therefore allows access to a specific parameter or variable without the need for hard-coded access in the ECU application software. In other words, the ECU contains only a generic XCP stack of UNIVERSAL MEASUREMENT and Calibration Protocol (ASAM Standard) protocols that respond to memory access requests from the ECU parameter tuning process. Testing is performed in a loop with ECU hardware and software. The internal variables of the ECU and the data of the external sensors are recorded and analyzed. As a result of this process, the values of the internal parameters of the ECU are determined. Calibration system. Different The process of adjusting the parameters of the ECU.

Testing is performed in a loop with ECU hardware and software. The internal variables of the ECU and the data of the external sensors are recorded and analyzed. The values of the internal parameters of the ECU are determined as a result of this process. Calibration and process of recording data from the internal memory of the ECU and external sensors. Measurement tasks can be performed through various configurations of the ECU parameter adjustment process. Testing is performed in a loop with ECU hardware and software. The internal variables of the ECU and the data of the external sensors are recorded and analyzed. The values of the internal parameters of the ECU are determined as a result of this process calibration system without recompiling and reprogramming the ECU application code. As a two-layer protocol, XCP systematically separates the protocol and transport layers from each other and follows a single-master/multi-slave concept. XCP always uses the same protocol layer, regardless of the transport layer.

The „X” in its name represents the variable and interchangeable transport layer. Currently, the following transport layers are defined as standard by ASAM as of October 2016:[2] The asAM Measurement, Calibration and Diagnostic Protocol™1 Universal Measurement and Calibration Protocol (ASAM Standard)XCP (Universal The process of recording data from internal ECU memories and external sensors. Measurement and process of setting ECU parameters. Testing is performed in a loop with ECU hardware and software. The internal variables of the ECU and the data of the external sensors are recorded and analyzed. As a result of this process, the values of the internal parameters of the ECU are determined. Calibration Protocol) A public specification developed by experts as part of a defined and consensus-based development process and published by officials representing a significant part of the industry for which it is intended, giving the specification the legitimacy to be called a „standard”. The standard defines a bus-independent master-slave communication protocol for connecting ECUs to the ECU parameter adjustment process.

Testing is performed in a loop with ECU hardware and software. The internal variables of the ECU and the data of the external sensors are recorded and analyzed. As a result of this process, the values of the internal parameters of the ECU are determined. Calibration systems. Universal Measurement and Calibration Protocol (ASAM Standard)XCP is the abbreviation for Universal The process of recording data from the internal memories of ECUs and external sensors. Measurement and process of setting ECU parameters. Testing is performed in a loop with ECU hardware and software. The internal variables of the ECU and the data of the external sensors are recorded and analyzed. As a result of this process, the values of the internal parameters of the ECU are determined. Calibration protocol. The main purpose of the XCP Universal Measurement and Calibration Protocol (asAM Standard) is to adjust internal parameters and capture the current values of the internal variables of an ECU. The first letter X of the Universal Measurement and Calibration Protocol (XCP) expresses the fact that the protocol is designed for a variety of bus systems.

Public Specification A, developed by experts as part of a defined, consensus-based development process and published by officials representing a significant part of the industry for which it is intended, gives the specification the legitimacy to be called a „standard”. A public specification developed by experts in a defined consensus-based development process and published by officials who make up a significant proportion of the industry for which it is intended gives the specification the legitimacy to be called a „standard” standard that describes memory-oriented protocol services without directly depending on specific bus systems. Several related standards include transport layer definitions for CAN, FlexRay, Ethernet (User Datagram Protocol (IETF Standard)UDP/Internet Protocol (IETF Standard)IP and Transmission Control Protocol (IETF Standard)TCP/Internet Protocol (IETF Standard)IP), Serial Peripheral InterfaceSPI and Serial Communication InterfaceSCI connections, and Universal Serial Bus (USB IF Standard). As a two-layer protocol, XCP systematically separates the protocol and transport layer from each other and uses a single-master/multi-slave concept. XCP is able to use the same protocol layer based on different transport layers. The „X” in XCP stands for the variable and interchangeable transport layer. It is therefore a universal measurement and calibration protocol that works regardless of the type of network used. ASAM explains: „The main objective of XCP is to adjust the internal parameters and capture the current values of the internal variables of an ECU. The first letter X in XCP expresses the fact that the protocol is designed for a variety of bus systems. [1] In 2003, the protocol was standardized as „ASAM MCD-1 XCP”. XCP is a successor to the CAN Calibration Protocol (CCP), which was developed in the mid-1990s. At that time, CAN was the dominant network system in the automotive industry.

Over time, other bus systems such as LIN, MOST and FlexRay emerged and made it necessary to extend the protocol to other transport media. In addition, XCP supports synchronous and asynchronous serial interfaces. With Ethernet or USB as a transport medium, XCP can also serve as a standardized interface for analog counters and hardware interface converters to RAM emulators, JTAG or other microcontroller debugging interfaces. XCP (or) „Universal Measurement and Calibration Protocol” is a network protocol from ASAM to connect calibration systems to electronic control units, ECUs. It provides read and write access to variables and memory content of microcontroller systems at run time. Entire data sets can be captured or stimulated in sync with events triggered by timers or operating conditions. .