Explain in detail the working principle and application fields of domestic fingerprint chips

Fingerprint chips refer to chip products with embedded fingerprint recognition technology, which can realize fingerprint image collection, feature extraction, and feature comparison on a chip. Developers can easily realize the fingerprint recognition function, which greatly reduces the threshold of the fingerprint recognition industry. , has a very positive role in promoting the promotion of fingerprint identification.
In recent years, with the rapid development of the domestic fingerprint chip market, the application and research and development of core production technologies related to it will surely become the focus of attention of enterprises in the industry. Understanding the research and development trends, process equipment, technology applications and trends of domestic and foreign fingerprint chip production core technologies is critical for companies to improve product technical specifications and market competitiveness.
The fingerprint identification chip contains two modules, the fingerprint identification module and the touch wake-up module.
Fingerprint identification module: The fingerprint identification chip is responsible for collecting fingerprint information and uploading the fingerprint image to the fingerprint identification algorithm chip; the fingerprint identification algorithm chip is responsible for controlling the working status of the fingerprint identification chip, and completing fingerprint registration, fingerprint deletion, and fingerprint matching.
Touch wake-up module: used to detect the user's touch action, if it is detected that the user touches the fingerprint identification module during the system sleep period, it will send a touch wake-up signal to the main control MCU.

Domestic fingerprint chip - P1032BF1, this chip is an MCU based on ARM Cortex-M3, specially designed for Wi-Fi/Bluetooth communication control. P1032BF1 has a large embedded SRAM and supports large program codes, it can also be used for general MCU applications.
The P1032BF1 is a CMOS device. Floating levels on input signals cause unstable device operation and abnormal current consumption. Pull-up or pull-down resistors should be used as appropriate for input or bidirectional pins.
P1032BF1 is a moisture sensitive ingredient. Moisture sensitivity is classified as category 3. It is important that parts are handled with care and proper manner. Handling, baking and out-of-box storage conditions for moisture sensitive parts are described in IPC/JEDC S-STD-033A.
Fingerprint Chip - P1032BF1 Features:
1. Core: ARM Cortex-M3, the maximum frequency is 96MHz
2. Embedded 8M-bit flash memory for program code and data storage
3. 128K bytes memory
4. Embedded LDO, supporting power supply from 3.3V to 5V
5. Embedded POR, LVD, WDG
6, 32.768 system PLL and 68 KHz oscillator for RTC
7, 1 to 30 MHz clock input for system PLL