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    <managingEditor>2510889344@qq.com (RuChen)</managingEditor>
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      <title>外设集成实验：采集批次到串行 DMA 的有界交接</title>
      <link>https://blog.195481.xyz/embedded/embedded-study/l032-peripheral-integration-lab/</link>
      <pubDate>Fri, 16 Oct 2026 23:29:09 +0800</pubDate>
      <author>2510889344@qq.com (RuChen)</author>
      <guid>https://blog.195481.xyz/embedded/embedded-study/l032-peripheral-integration-lab/</guid>
      <description>建立采集批次交给传输 DMA 时的端到端有界所有权与背压边界，并用 C11 Host Fake 验证正常交接、超期、停源和恢复，以 STM32F407xx 的 TIM2-ADC1-DMA2 到 USART2-DMA1 参考链核对时钟、CubeMX、HAL、LL、寄存器与迁移边界。</description>
      
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      <title>UART 异步收发闭环：从帧状态机到软件缓冲</title>
      <link>https://blog.195481.xyz/embedded/embedded-study/l022-uart-rx-tx-loop/</link>
      <pubDate>Mon, 05 Oct 2026 17:52:01 +0800</pubDate>
      <author>2510889344@qq.com (RuChen)</author>
      <guid>https://blog.195481.xyz/embedded/embedded-study/l022-uart-rx-tx-loop/</guid>
      <description>建立可迁移的 UART 异步串行收发模型：学习者能解释帧边界与接收状态机，区分外设事件、软件缓冲和应用消费，并用 Host Fake 验证正常流、分段到达、缓冲溢出、帧错误恢复和 TX 捕获；不把主机逻辑当作 STM32 硬件证据。</description>
      
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