(In a variety of single-chip system solutions, such as intelligent instruments, various handheld devices, GPS receivers, etc., they will encounter the problem of how to communicate with the PC. When the data volume is not large and the transmission rate request is not high, the serial communication method is generally used, that is, the use of the system and the PC is terminated by connecting with the RS-232 standard serial interfaces COM1 and COM2 configured by the PC. data exchange between them. For example, Nantian encryption keyboard, it)
收藏
