This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
从机发给主机24个字节，我分两次发一次发12个，主机分两次收到数据后，我如何将这24个字节打包成一个数据包呢
每次最大20个字节，只能分层两个包
可以调用longwrite函数来写入>20字节的数据，但底层仍然是20字节
你可以将蓝牙看作最基本的数据流，在上层做流控和封装
