调用KDB的另一种方式是通过串行控制台。
然而，串行端口可以通过其他方式关闭，导致在一个叫。
However, the serial port can be closed by other means, resulting in a call to close .
本文通过对比多种fpga数据加载方式，从保密性、可靠性、经济性及PC B设计等几个方面说明了利用单片机串行加载的优越性。
By contrast with various FPGA loading serial data way, from secrecy, reliability, economy and designing PCB, it shows advantage of loading serial data.
串行口对时方式：装置通过串行口读取同步时钟每秒一次的串行输出的时间信息对时，串行口又分为rs232接口和RS422接口方式。
Mode of serial port pair: synchronous clock device through the serial port read per second pair a serial output time information, serial port and RS232 interface and RS422 interface.
通过对MCS - 5 1系列单片机串行口的研究，简要阐述了单片机通信方式及串行接口的原理。
By studying the serial port of the MCS-51, this article briefly expatiated the single chip microcomputer communication mode and the theory of the serial interface.
通过对MCS - 5 1系列单片机串行口的研究，简要阐述了单片机通信方式及串行接口的原理。
By studying the serial port of the MCS-51, this article briefly expatiated the single chip microcomputer communication mode and the theory of the serial interface.
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