Huawei Technologies Co., Limited

Shenzhen Yinwang Intelligent Technologies Co., Ltd.

Pengxin Bao

Lei Wan

Xuehuan Wang

Xingxin Zhang

Chao Li

Jiezuo Zhu

Haibo Wen

A PCIe-based communications method includes: a root complex writes identity information of a second node into a first node and writes routing table information into a third node, where the first node is a source node of first data, the second node is a destination node of the first data, and the third node is a node through which the first data arrives at the second node.

PCIe-based communications method and apparatus

A data transmission method according to an I2C protocol and a transmission apparatus includes: a first transmission chip obtains I2C data from a first device, wherein the I2C data is data sent by the first device to a second device. The first transmission chip sends first feedback information to the first device, wherein the first feedback information is used to indicate whether the I2C data is successfully received. The first transmission chip forwards the I2C data to a second transmission chip corresponding to the second device. The first transmission chip receives second feedback information from the second transmission chip, and the second feedback information is used to indicate whether the I2C data is successfully received. The first transmission chip stores the second feedback information in a first storage space that is storage space of the first transmission chip.

Data transmission method according to inter-integrated circuit protocol and transmission apparatus

An inter integrated circuit (IC)-based communication method incudes when an IC signal is encapsulated into a data packet for transparent transmission, an IC status is indicated by a first field in a packet header of the data packet. The data packet may have no load part, or the data packet has a load part but the load part is used to carry a slave address, a read/write flag, or IC data. Because the IC status is indicated in the packet header of the data packet, the IC status may be encapsulated in a same data packet together with the slave address, the read/write flag, or the IC data. In other words, the IC status may not need to occupy one data packet separately.

Inter integrated circuit-based communication method and apparatus

A control method includes, after determining a target device to be controlled, a host sends indication information, a control command, and an address of a register of the target device to a control device through an Inter-Integrated Circuit (I2C) interface, so that the control device encapsulates the indication information, the control command, and the address of the register of the target device, and sends the indication information, the control command, and the address of the register of the target device that are encapsulated to a slave device connected to the control device.

Control method and apparatus

This application discloses a peripheral component interconnect express (PCIe)-based data transmission method and apparatus. The method includes: A first node encapsulates data into a transaction layer packet (TLP) and then sends the TLP to a second node. The TLP includes a packet header and an extension header. The packet header includes a first field and a second field. The first field, the second field, and the extension header are used to indicate first encapsulation information. The first encapsulation information includes a data type of the data and at least one encapsulation parameter corresponding to the data type. In some embodiments, the first field, the second field, and the extension header are used to indicate the information required for transmitting the data.

PCIE-based data transmission method and apparatus

A Peripheral Component Interconnect Express (PCIe)-based data transmission method includes that a first node obtains a transaction layer packet (TLP), where the TLP includes data, a type field, and at least one reserved bit, the type field and the at least one reserved bit indicate a first parameter set, and the first parameter set includes a data type of the data, and the first node sends the TLP to a second node.

PCIe-based data transmission method, apparatus, and system

A first node obtains a transaction layer packet (TLP); and the first node sends the TLP to a second node. The TLP includes data, a type field, and an extension header, and the type field and the extension header are used to indicate a data type of the data and one or more first attribute parameters corresponding to the data type.

Embodiments of this application disclose a data processing method, which can be applied to a clock synchronization network system. The system can correct, based on a clock frequency error or a time error, a data timestamp of a data packet collected by the system in a time period in which there is no reference clock, so that a corrected system time of the data packet is consistent with a reference time. This improves accuracy of data record.

Data processing method and apparatus

A Peripheral Component Interconnect Express (PCIe) data transmission method includes a first node that obtains a transaction layer packet (TLP). The TLP includes a TLP header, a TLP extension header, and data. The TLP header includes a type field, an Fmt field, and a reserved bit, and where the type field, the Fmt field, the reserved bit, and the TLP extension header indicate a data type of the data and at least one piece of attribute information corresponding to the data type such that, information, the data type and the at least one piece of the attribute information, to transmit the data is indicated using the type field, the Fmt field, the reserved bit, and the TLP extension header in the TLP.

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Chengdu, China

Pengxin Bao