USB debug cable and serial port protocol: how to achieve communication?

USB debug cable and serial protocol are two common communication methods, they can be used to connect computers and other devices for data transfer, let's talk about how to achieve communication between USB debug cable and serial protocol.

1. USB debug cable

USB debug cable is a kind of communication cable to connect computer and other devices, which adopts USB interface standard and supports high-speed data transfer and hot-swappable function. When using USB debug cable for communication, you need to use USB to serial adapter to convert USB interface to serial interface, and then connect with other devices.

2. Serial protocol

Serial protocol is a serial communication based protocol that enables data transfer between devices through a serial interface. The serial protocol includes various standards such as UART, RS232, RS485, etc. When using serial protocol for communication, you need to pay attention to the baud rate, data bits, stop bits, parity bits and other parameters to ensure the correctness and stability of data transmission.

3. Achieve communication

To implement the communication between USB debug cable and serial protocol, you need to convert USB interface to serial interface first, this can be achieved by a USB to serial adapter. Then, the appropriate serial port driver needs to be installed on the computer and the parameters of the serial port need to be set. Next, you can use tools such as a serial programming language or a terminal emulator to send and receive data.

When conducting communications, the following points need to be noted:

① Confirm that the parameters of the serial port are set correctly, including baud rate, data bits, stop bits, parity bits, etc.;

② Selecting the appropriate programming language or tools such as terminal emulators;

③ The need to follow the corresponding protocol rules when sending and receiving data to ensure the correctness and stability of data transmission;

④ Need to make sure that the physical connection between the USB debug cable and other devices is reliable and not loose or disconnected, etc.

In a word, USB debug cable and serial protocol are two common communication methods that can realize data transfer between computers and other devices. When using USB debug cable and serial protocol for communication, it is necessary to choose a suitable conversion adapter, install drivers, set serial port parameters, and pay attention to protocol rules and physical connection to ensure the correctness and stability of communication.