我用串口空闲中断去接收一段不定长度的数据，数据长度不大于128，功能已经实现。但是我想知道我实际接收的字节数，类似receive count。该怎么做呢？
Hello,
Just to be sure that I understood your question correctly, you want to know if there's a way to keep the receive count of the UART interface, am I correct?
Regards,
Victor
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