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      <title>逻辑分析仪：从数字边沿建立可信的时序证据</title>
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      <description>能够设计并审计一次 STM32F407xx 数字信号的逻辑分析仪采集：由定时器时钟与输出配置预测边沿，以采样率、触发和多通道时间基约束读数，并区分模拟电气问题、软件标记与真实硬件事件的证据边界。</description>
      
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