[sort out] summary of common problems about IC chip burning

Date：2021-05-10 16:45:00Views：2366

As a kind of processor, burning chip needs a program to miniaturize all components into one or several integrated circuits; An integrated circuit that can receive coding instructions at one or more ends, execute the instructions and output signals describing its state, and the process of storing programs in the chip is called chip burning.

Generally speaking, manufacturers buy all kinds of burnable ICs from semiconductor manufacturers, and their data area is blank. Before assembly, they write the latest version of the control program and data using the IC burner. This is a necessary process more important than IC testing. It is generally implemented by the final electronic product manufacturer, which is also in production, More error prone links requiring more debugging and correction.

What is chip burning?

The English name of the burner is programmer. Some people call it writer. Earlier, some people call it burner. This machine is used to burn a kind of IC called programmable IC. It can burn the cell data inside these ICs, resulting in different functions. Most of the previous ICs were fixed function IC, Therefore, if designers design a circuit board, they must use a variety of different fixed function ICs. For a large number of manufacturers, they need to prepare many types of ICs. Since the emergence of burnable ICs, designers can burn them into ICs with different functions as long as they prepare one IC. The material preparer can only purchase one IC, which is convenient for material preparation, but they must prepare a burner to burn it.

Burning (general) refers to using a recorder to record data (also known as burning) to a recording disc. Such as CD and DVD, the latter has a much larger capacity than the former.

Burning is like copy. Copy the things in your computer on other file carriers, like a 1.4-inch disk, which can be said to be a burning disk.

But for example, GBA card is a burn card, but it can't be called a burn card. Burning and recording are the same process, but they are called differently on different carriers.

Why does the IC need to burn?

First, because there are microcontrollers or arm controllers in electronic products. In the production process, there is no program in the control chip at the beginning. In order for the single chip microcomputer or ARM chip to operate according to the functions designed by us, it is necessary to burn the program execution file written by 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, it is necessary to 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. All to ensure the normal operation of electronic products.

Third, burn files, such as font, pictures, ringtones, animation and so on. 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. The font file is the bottom file of electronic products called for users to input Chinese characters.

In general, the purpose of IC recording this program is to ensure the normal operation of single chip microcomputer system or ARM chip, as well as the essential documents and parameters in safe operation.

How to judge whether the IC has been burned?

There are two ways to check whether the IC has been burned. One is to identify it by appearance, and the other is to observe it from the internal structure by using the burner.

Generally speaking, the goods from the original factory have not been burned, and the inside is blank. You can judge whether this IC has been burned by checking whether it is blank. At the appearance level, check whether there are some marking points and whether the footnote has been soldered with tin to identify whether the IC has been burned.

What are the burning IC categories?

Burning IC is generally divided into MCU class and storage class.

MCU class burnable IC

MCU can burn ic. At present, there are many single-chip controllers (single MCU) in the market that can burn data once or multiple times through the supporting burner. Usually, the MCU that can only be burned once is called OTP MCU. In contrast, MTP MCU is the MCU that can be burned multiple times.

Memory class burnable IC

There are many categories of memory burnable ICs, such as EPROM, EEPROM, nor flash, sprom, NAND flash, etc.

EPROM, nor flash, EEPROM and sprom are mainly used to store our data or programs. There are many manufacturers. There are quite a number of universal burners on the market that can burn data into these ICs.

NAND flash is only produced by Samsung and other manufacturers. At present, it is widely used in USB flash disk, MP3, MP4, ELA and electronic dictionary.