![]() ![]() Then the data itself follows, including 5, 6, 7 or (usually) 8 bits. The transfer begins with a start bit, where the receiver calls attention to the pending data transfer. It consists of chronologically transmitted data bytes. The format of the transmitted data is simple. RTS and DTR can thus be activated and deactivated controlled by the program, and CTS, DSR, CD, and RI can only be read.Ĭonnections of the 9-pin RS-232 connector: You can see the output lines TD, RTS, DTR and the input lines RD, CTS, DSR, CD, RI from the computer. To understand the serial interface it is important to know that there are data lines for sending and receiving data (TD/RD), two pairs of handshake lines RTS/CTS and DTR/DSR, two status lines CD/RI and a ground. ![]() Modern computers no longer have serial ports, however this problem can be easily solved with low cost USB-to-serial serial adapters. That is why the serial interface is still used to connect measuring devices (voltmeters, cathode ray oscilloscopes, etc.) to control devices and robots, and also to communicate with micro-controllers. Although Bluetooth, Ethernet, or USB interfaces are commonly used for communication between a computer and peripherals, the communication over the serial interface ( RS-232C) is still widespread since the complexity of the circuit in external devices is lower. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |