Memory emulation method and system for testing and troubleshooting
microprocessor-based electronic systems
    4.
    发明授权
    Memory emulation method and system for testing and troubleshooting microprocessor-based electronic systems 失效
    基于微处理器的电子系统的内存仿真方法和系统

    公开(公告)号:US4868822A

    公开(公告)日:1989-09-19

    申请号:US158223

    申请日:1988-02-19

    IPC分类号: G06F11/22 G06F11/26

    CPC分类号: G06F11/261

    摘要: A method and system for testing and troubleshooting microprocessor-based electronic systems employs memory emulation techniques as well as other techniques to provide complete functionality tests and fault location. Fine-resolution sync pulses may be generated at preselected time positions during a bus cycle of interest to facilitate full troubleshooting fault isolation. Other features include bus testing using memory emulation techniques, using the chip select line of ROMs to encode test results, and techniques that keep a target microprocessor functioning in a system in which the kernel is dead.

    摘要翻译: 基于微处理器的电子系统的测试和故障排除方法和系统采用内存仿真技术以及其他技术来提供完整的功能测试和故障定位。 在感兴趣的总线周期期间,可能会在预选时间位置产生精细分辨率同步脉冲,以便于完全故障排除故障。 其他功能包括使用存储器仿真技术的总线测试,使用ROM的芯片选择线来编码测试结果,以及保持目标微处理器在内核死亡的系统中运行的技术。