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树莓派4B有两个串口,一个是硬件串口(UART0),一个是软件串口(UART1)。硬件串口的性能更好,但是默认情况下被用于蓝牙通信。软件串口的性能较差,但是默认情况下被用于GPIO 14和15的通信。 |
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初步考虑采用技术路线 2
利用 树莓派4b的bootcode驱动的调试串口(PL011 UART), 直接连接 STM32 的 UART1 (STM32接收串口命令是用的 uart1),
这样做的好处是,
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当前技术路线
可能的三条技术路线
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