进入AD6903的UART RX信号的这种“RF干扰拾取”行为的发生以一个特定的RF频率为中心，而这些信号迹线没有完全被屏蔽。 这种现象是可以解释的：主板的印刷导线拾取干扰，因为导线上有寄生电感、寄生电阻和寄生电容，而导线的两端连接的是高阻抗;一侧是一个10kΩ电阻器，另一侧则是CMOS输入。

前言 前面一篇我们实现了IO模拟UART发送,我们继续来实现UART接收。对于接收底层资源需要一个输入IO且其可配置位下降沿中断,和一个定时器即可。 实现过程 有了发送的实现,我们依葫芦画瓢,按照发送的模式进行实现,只是一个是发送一个是接收。状态机实现的过程是类似的。 启动接收即使能RX引脚的 ...

子模块中，Rx信号再作为uart_rx模块的输入，经过uart_rx模块的处理，转换成八位并行数据o_data输出；对于uart_tx模块，主要将输入的i_data并行信号转换 ...

In this scheme, the Rx pin of the asynchronous receiver acts as the edge-driven interrupt pin. When the Rx pin receives a high-to-low transition (that is, a low-going edge in the input signal ...

Figure 2 SOIC-8 BOB preparation The USB-to-UART BOB requires a four pin header where Gnd, Tx, Rx, & VCC are located. Figure 3 Header placement The isolation board can now be soldered directly to the ...

The RP2350 has a few advantages over its predecessor, one of which is the ability to load firmware remotely via UART, as [Thomas Pfister] has documented on his blog and in the video below. [Thomas]… ...