1 serial port debugger. Send process: to be sent to ensure that TI = 1: that is, send buffer is empty, otherwise they would be unable to lead to the data, if you want to send can be mandatory: TI = 1. Specific send data: Using printf ( akjdfaklfj ) function can be sent directly. 2. Receiving process: when in the receiving mode selection interruption, thus saving CPU time, improve efficiency,

51uart.txt

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