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A hardware platform modular circuit testing method

A circuit testing and hardware platform technology, applied in software testing/debugging, error detection/correction, electrical digital data processing, etc., can solve the problems of wasting manpower and material resources, different current consumption and actual current, and imprecise testing, etc. The effect of accuracy

Active Publication Date: 2022-03-29
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A hardware platform can usually be adapted to a few to more than a dozen models. If each model corresponds to a hardware test program, although it is feasible, every time an additional model is added, the test bench and the controller under test must be jointly debugged once. Obviously a waste of manpower and resources
If the test program tests all platform-based resources without considering the actual resources, not only the test is not rigorous, but the consistency of the test results cannot be guaranteed. For example, the current consumption is different from the actual current, and even some normal functions cannot pass the test. such as sleep function

Method used

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  • A hardware platform modular circuit testing method
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  • A hardware platform modular circuit testing method

Examples

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Embodiment 1

[0044] The CAN communication module is taken as an example to illustrate below.

[0045] After the controller under test starts the power-on test, the upper computer sends a list of optional resources, CAN0 receives the message, unpacks it according to the communication protocol, and analyzes the global request and local request for optional resource initialization. In the large loop, query the global request, and if the request is valid, then judge the local request of each optional resource one by one, and initialize it if there is one. Table 1 is an example of CAN message bit definition when CAN1-CAN7 are optional modules. CAN0 channel receives 0x105 message, when bit0=1, it means that there are optional resources in CAN1-CAN7. Then query Bit1-Bit7 to determine which channels need to be initialized.

[0046] aisle ID direction bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Remark CAN0 0x105 take over CAN7 CAN6 CAN5 CAN4 CAN3 CA...

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Abstract

The invention relates to the technical field of vehicle hardware production testing, in particular to a hardware platform modularized circuit testing method. Including that the host computer sends the optional resource definition list corresponding to the model to the tested controller; the tested controller calls the corresponding test case according to the optional resource definition list, and tests the resources and functions specified in the optional resource definition list; The test case is a test program written into the controller under test in advance to test the function of the modular circuit of the hardware platform. When any one or more of the resources or functions are different, it corresponds to a different test case. Multiple test cases share the same Consists of a complete test program for the controller under test. The test program consists of multiple test cases according to different vehicle models, resources and functions. When testing, the corresponding test cases can be invoked through the resource definition list sent by the host computer for testing, so as to realize that a test program is suitable for different resources and functional tests of different models.

Description

technical field [0001] The invention relates to the technical field of vehicle hardware production testing, in particular to a hardware platform modularized circuit testing method. Background technique [0002] With the continuous development of automotive electronics and the emergence of domain controllers, the traditional controller function and performance definitions are gradually solidified, and the hardware platform circuit is modularized. The same PCB can realize different module circuits or different modules through different material lists. Quantity combination, adapting to different models, reducing development costs and cycles, reducing component failure rates, and improving vehicle reliability have become a trend. [0003] For example, the gateway hardware platform is designed with 6 channels of CAN, 5 channels of message wake-up, and 2 channels of LIN, which can detect 3 gears and 3 hard-line wake-up signals. On model A, only 3 channels of CAN, 1 channel of LIN...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/07G06F11/36G06F9/4401
CPCG06F11/3684G06F11/3672G06F9/4418G06F9/4406G06F11/0757
Inventor 常云萍蒋继东彭金城王洪涛蔡丹丹
Owner DONGFENG MOTOR CORP HUBEI