What does electronic product burning mean? Difference between offline burning and online burning

Date：2022-04-28 15:05:44Views：1827

Most of our electronic products now have microcontrollers or processors in their internal circuits. It can be said that they are single chip microcomputer or ARM chip. It can be said that the heart of the system of electronic products is the controller processor, so the internal program of the controller processor is the soul of electronic products. So, what does electronic product burning mean? What's the difference between offline burning and online burning? Come and have a look!

The burning methods are generally divided into offline burning and online burning.

1. Offline burning:

Through the connection between the adapter and chips with different packages, the burning of the program can be realized only when the chip is used with the adapter. The essence of the adapter is similar to a precision fixture. Different packaged chips need to be matched with different adapter seats. If there is an error in the production test and the production is traced back and corrected again, the chip needs to be removed from the adapter and burned again according to the specified process, which costs a lot of manpower and material resources and a high cost. During PCBA processing and production, there will be some emergencies, such as insufficient temperature resistance of the circuit board, which will cause chip deformation when disassembling the chip, which will virtually increase the risk of scrapping.

2. Online burning:

Online burning uses the standard communication bus of the chip, such as USB, SWD, JTAG, UART, etc. the interface is generally fixed, and there are few pins to be connected during burning. Because the communication rate of the interface is not high, the burning can be completed by using general wire, which will not produce high consumption. Online burning is to burn the program through wire connection. If an error is found during production test, the PCBA in error can be traced back immediately and burned again without dismantling the chip. It not only saves the production cost, but also increases the burning efficiency.

What does electronic product burning mean? Electronic products that need to be burned can be divided into three cases.

First, because there is a single-chip microcomputer or arm controller in electronic products, there is no program in the control chip at the beginning of the production process. In order for the single-chip microcomputer or ARM chip to operate according to the functions we designed, it is necessary to burn the program execution documents written in the project into the controller chip of our electronic products

Second, you need to burn the corresponding parameters. After the MCU or arm program is burned, sometimes in order to keep it confidential, you can set the encryption parameters of the program through serial port or USB and other interfaces, or burn some parameters, such as the IP address and port data of WiFi module. To ensure the normal operation of electronic products.

Third: burn files, such as font, pictures, ringtones, animation and other files. Now many electronic products have display screens. In order to increase the superior user experience for users, it is necessary to ensure that the high-definition photos processed in advance are stored in the single chip microcomputer or arm system. Font files are the bottom files of electronic products called for users to input Chinese characters.

To sum up, the burned files are essential files and parameters to ensure the normal and safe operation of single chip microcomputer system or ARM chip.