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Design and operation method of LIN (Local Interconnect Network) controller

An operation method and controller technology, applied in the direction of program control design, instrument, calculation, etc., can solve problems such as damage, loss of communication in LIN network, etc., to avoid the effect of information error jumping

Pending Publication Date: 2022-05-13
易展
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The master mode in the existing LIN controller is only responsible for the master task and some slave tasks, and the slave is only responsible for the slave task. Once the internal potential of the control register is wrong, it will directly cause the node to lose communication with the entire LIN network, and lose Communication means that the LIN network cannot communicate with the node, the system will judge the node as damaged and must be repaired or replaced by people; therefore, a design of LIN controller and its operation method are invented

Method used

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  • Design and operation method of LIN (Local Interconnect Network) controller
  • Design and operation method of LIN (Local Interconnect Network) controller
  • Design and operation method of LIN (Local Interconnect Network) controller

Examples

Experimental program
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Effect test

Embodiment 1

[0039] refer to Figure 1-4 , an operating method of a LIN controller, the operating method is as follows:

[0040] The host receives instructions and transmits data in an orderly manner: when the LIN controller host receives the ready-to-transmit instruction from the control register, it starts the host task in the controller host, enters the synchronization interval segment at the same time, and generates a protected ID segment for transmission .

[0041] Specifically, such as image 3 As shown, the host of the LIN controller sends a dominant level to the LIN bus. After the transmission is completed, it enters the synchronization segment. After entering the synchronization segment, it sends level signals 10101010 to the LIN bus in sequence. In the ID segment, at the same time, the broadcast address is sent to the LIN bus network, and the host task is completed and the host enters the idle state.

[0042] It should be further explained that the sync interval segment is com...

Embodiment 2

[0055] refer to figure 2 , a LIN controller design, including a control register, a LIN controller master and a LIN controller slave;

[0056] Among them, the control register is used to determine the state of the LIN controller master or the LIN controller slave;

[0057] The LIN controller master is used to be responsible for the master task and the slave task at the same time;

[0058] The LIN controller slave is used to take care of the slave tasks.

[0059] It needs to be further explained that the master task only runs on the LIN controller host, while the slave task can run on both the LIN controller host and the LIN controller slave. At the same time, the information between different tasks of the LIN controller is in the form of frames Transmission, the LIN message frame specifically includes two parts: the frame header and the response. The master is responsible for sending to the frame header, and the slave is responsible for receiving the frame header and analyz...

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PUM

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Abstract

The invention discloses an LIN (Local Interconnect Network) controller design and an operation method thereof, and belongs to the technical field of LIN control, and the operation method specifically comprises the following steps: (1) a host receives an instruction and orderly transmits data; (2) the slave computer analyzes and processes the level of the LIN bus; (3) judging and analyzing the protected ID segment of the LIN bus; (4) detecting the task state of the slave; according to the method, the host task and the slave task can be associated under logic scheduling in the host mode, unified scheduling is achieved, the functions of the host task and the slave task are achieved with fewer circuit resources, and information transmission failure caused by information error hopping of the slave node register can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of LIN control, in particular to a design of a LIN controller and an operation method thereof. Background technique [0002] In the initial design of the LIN controller, the host of the LIN controller and the slave of the LIN controller were designed separately according to the content of the protocol function. The broadcast address of the master of the LIN controller makes the slave respond. Since the emergence of SoC technology, it has been favored by people. Great attention, compared with the previous LIN controller, IP-based design is more popular. IP-based design improves design efficiency, reduces design risk, and has higher reusability. Therefore, it is often the choice when designing Encapsulate the functions of the master and slave in the same IP to achieve the design idea with the highest reusability; [0003] The master mode in the existing LIN controller is only responsible for the master task a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L12/403G06F9/48
CPCH04L12/40006H04L12/40013H04L12/40019H04L12/403G06F9/4843H04L2012/40234
Inventor 易展
Owner 易展
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