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bdzx_xb
2024-06-14 10:07
Forum:
LuckFox Pico
Topic:
串口读取问题
Replies:
1
Views:
1556
串口读取问题
如果直接read,有没有数据都会返回。
如果用select异步,
ret = select( m_serial_fd+1,&fdRead,NULL,NULL,&aTime );
没有新的数据也会返回
而用其它的串口工具直接连设备读取就没这个问题
有没有好的方法只有串口有数据到才处理
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