Vehicle chip DDR simulation method

A simulation method and chip technology, applied in design optimization/simulation, geometric CAD and other directions, can solve problems such as inaccurate verification results and difficulty in meeting simulation requirements, and achieve the effect of shortening simulation time, shortening design time, and strong simulation reliability.

Pending Publication Date: 2022-08-02
CHINA AUTOMOTIVE TECH & RES CENT +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of this, the present invention aims to propose a DDR simulation method for automotive chips to solve the problem that the current mainstream simulation methods are difficult to meet the simulation requirements, resulting in inaccurate verification results

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  • Vehicle chip DDR simulation method
  • Vehicle chip DDR simulation method
  • Vehicle chip DDR simulation method

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Embodiment Construction

[0032] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0033] In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be constru...

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Abstract

The invention provides a DDR simulation method for a vehicle chip. The DDR simulation method comprises the following steps: S1, extracting a controller IBIS Plus model by using a software tool; s2, corresponding Die parameters are extracted from a Die parameter model in the DDR chip according to requirements; s3, utilizing a software tool to extract S parameter models of the package PKG and the circuit board PCB; and S4, searching the memory model from the memory organ network or the supplier of the memory. According to the DDR simulation method for the vehicle chip, the simulation precision is high, the simulation time is greatly shortened, the influence of power on signals can be accurately simulated, and the simulation precision is close to SPICE simulation and far higher than that of a common IBIS model.

Description

technical field [0001] The invention belongs to the technical field of chip simulation, and in particular relates to a DDR simulation method for a vehicle chip. Background technique [0002] At present, my country's chips, especially automotive-grade chips, are highly dependent on imports. The development of intelligent, electrified, and connected vehicles has driven the application of chips in smart cockpits and autonomous driving. In order to better cope with today's international According to the situation, it is imperative to strengthen the independent research and development of chips; chips can generally be divided into four grades according to the usage scenarios, namely military grade, vehicle grade, industrial grade, and consumer grade. According to the severity of the chip, military grade > vehicle grade > Industrial grade > Consumer grade. It can be seen that the severity of automotive-grade chips is second only to military-grade chips, and automotive-grad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/20
CPCG06F30/15G06F30/20
Inventor 张洁张旭马俊杰丁一夫张玉洁张悦蒋莉王长园
Owner CHINA AUTOMOTIVE TECH & RES CENT
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