Method and apparatus for configuring plurality of devices on printed circuit board into desired test port configuration
    6.
    发明授权
    Method and apparatus for configuring plurality of devices on printed circuit board into desired test port configuration 有权
    用于将印刷电路板上的多个装置配置成所需测试端口配置的方法和装置

    公开(公告)号:US07752004B1

    公开(公告)日:2010-07-06

    申请号:US10754823

    申请日:2004-01-09

    CPC classification number: G01R31/318558 G01R31/318572

    Abstract: A system on a circuit board includes a plurality of devices designed to access an electronic system on the circuit board, and a programmable logic device (PLD) connected to the plurality of devices. Each of the plurality of devices complies with a test port architecture. The PLD interfaces the plurality of devices with a test port. The PLD is capable of configuring different connectivity among the plurality of devices based on the program implemented and the assertion of input control signals. A method and apparatus configures a plurality of devices on a circuit board into a desired configuration using the PLD. The configuration includes (a) receiving a control signal at the PLD, (b) configuring at least one of the plurality of devices into a chain based on the control signal, and (c) coupling the configured chain to the test port via the PLD.

    Abstract translation: 电路板上的系统包括被设计为访问电路板上的电子系统的多个设备以及连接到多个设备的可编程逻辑设备(PLD)。 多个设备中的每一个符合测试端口架构。 PLD使用测试端口将多个设备连接起来。 PLD能够基于所实现的程序和输入控制信号的断言来配置多个设备之间的不同连接。 方法和装置使用PLD将电路板上的多个设备配置成期望的配置。 该配置包括(a)在PLD处接收控制信号,(b)基于控制信号将多个设备中的至少一个配置成链,以及(c)经由PLD将配置的链路耦合到测试端口 。

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