【Minimum system】STC32G12K128

Borrowing a sentence from the STC official website: 2022, the first year of 32-bit 8051! The backbone of a country's heavy equipment and a great country are all industrial specifications with strong anti-interference.
 
      Seeing this, is the unique official website homepage already in your mind? Yes, today we recommend a 2022 latest 32-bit 8051 core microcontroller: STC32G12K128. In order to help everyone learn STC32 better, we specially designed this very delicate core board with an onboard CH340 chip, which can be used as soon as you get the development board. An LED light, a button, and an external 24C02 memory are reserved on the board to make your STC32 learning journey more convenient. Next, I will introduce some of the main features of the core board:
 
1 Chip features
      The STC32G series of microcontrollers are 32-bit 8051 microcontrollers with super strong anti-interference/ultra-low price/high speed/low power consumption as the goal. At the same operating frequency, the STC32G series of microcontrollers are 70 times faster than traditional 8051 microcontrollers. It can be seen that the performance of STC's 32-bit microcontroller is not ordinary.
      The chip has a built-in high-precision R/C clock and can be used without an external crystal oscillator. The main frequency is 33Mhz. The chip provides a wealth of digital peripherals, including 4 serial ports, 5 timers, 2 advanced PWM timers with dead zone control, and IIC, SPI, USB, CAN, LIN interfaces, and ultra-high-speed 12-bit ADC and comparators, meeting most design requirements. What reason do we have to refuse this cost-effective 32-bit microcontroller launched by STC?
 
2 Onboard resources
Main control chip: STC32G12K128, LQFP-48 SMD package
Power connection: Use 1 Type C for power supply or connect to the computer for program download
Serial port download: Use CH340N chip to communicate with the computer, no external downloader is required
LED display: one power indicator and one status indicator
Button control: one normally closed switch for cold start download of the chip, one independent button with interrupt function
Program expansion: Use IIC interface to plug in an M24C20 EEPROM chip
Pin header interface: Lead out all chip pins, compatible with other mainstream microcontroller core board pin arrangement.
Reference voltage source: Use CD431 reference voltage source to provide a stable 2.5V reference voltage for the microcontroller.
      This core board has onboard serial port download, which can be easily learned and debugged. From the most basic input and output function learning, serial communication, IIC communication, and microcontroller interrupts, timers, PWM and other important functions can be learned in this core board. All pins of the core board are brought out and compatible with other mainstream MCUs. The spacing between the upper and lower pins of the board is 15.24mm (600mil). It can be plugged into a breadboard or perforated board, which is convenient for function expansion and debugging. It can quickly complete project verification and make MCU learning easier.


3 Advantages and Features
Small appearance: the board size is only 53.36mm*22.86mm (2100mil*900mil), and it can be matched with the baseboard for project development
Cost-
effective: use the price of 51 to play the performance of 32 Flexible design: all functional pins IO are brought out, which is convenient for verification and debugging of various functions
Convenient: onboard CH340N serial port chip, program download and debugging can be done without a downloader
 

4 Application scenarios
Circuit EDA software learning, learning circuit schematics, PCB design, and learning to make a minimum system
College teaching application, learning microcomputer principles and program design, using this core board to complete course design projects
Electronic enthusiasts learning, mastering single-chip microcomputer circuit design and program development capabilities, learning project development specifications
Electronic engineer verification, quickly getting started with STC32 single-chip microcomputer learning, verifying the required functions Development
competition learning and training, you can quickly build the required circuit in the electric competition
 
4 Please go to Bilibili for the video tutorial of
      the core board teaching video. Welcome everyone to click three times~
      Video teaching link: https://space.bilibili.com/494969171/channel/collectiondetail?sid=635687
 
 
6 Project progress
time
project record
2022-07-24

Completed the core board circuit design

2022-08-15

Completed the video teaching recording