Real time data encryption

Designing encryption circuits using CPLD is convenient and feasible, and can effectively achieve encryption functions.
The AG32 series MCU products have built-in CPLD logic inside the chip, which can effectively meet various data collection needs and reduce customer BOM costs.
The following solution uses the Ethernet MAC part and CPLD part of MCU to help customers achieve real-time encryption of image transmission.

In the application of Ethernet image transmission, CPLD intercepts the data transmitted by MAC, adds a custom CRC value, and then transmits it through MAC, which is equivalent to encrypting the image data.

The following solution uses the Ethernet MAC part and CPLD part of MCU to help customers achieve real-time encryption of image transmission.
Plan features:
1. AG32 has a maximum clock frequency of 248MHz and a wide range of peripherals, including five UARTs, two I2Cs, and supports USB, CAN, and SPI channels. With its high-speed instruction execution speed, convenient JTAG debugging method, and low power consumption, it provides a relatively complete platform for data acquisition and processing design.
2. AG32 has a 3x12 bit maximum of 3M SPS ADC (17 channels), 2 DACs, and provides two dual channel comparators.
3. AG32 is initially compatible with STM32 pins, but can be flexibly redefined through configuration files for use by MCU and CPLD in the kernel, thus providing more GPIO ports than STM32.
4. The MCU and CPLD of AG32 communicate at high speed through the internal AHB bus of the chip, far exceeding the speed of traditional SPI.
5. AG32 has a built-in CPLD that enables customized logic functions for customers.
6. Provides over 32/48/64/100 packages.