STC32G12K128 Minimum System Development Board

 
I. Product Introduction. The STC32G12K128 series microcontroller is a 32-bit microcontroller with a wide operating voltage range launched by STC in 2022. This course uses this microcontroller to build a suggested system development board for hands-on project learning. The chip's peripheral functions are as follows:


4 serial ports;


5 timers;


8-channel 16-bit advanced PWM;


15-channel 12-bit ADC;


2-channel CAN bus function units;


1-channel I2C serial bus;


supports DMA (SPI/I2C/ADC/UART/LCM).


All I/O ports support interrupts except for the interrupt pin.


II. Board Functions 1. One CAN bus interface, using TI's SN65HVD230DR as the CAN transceiver for simple CAN communication. 2. One WS2812 LED. 3. One RGBW LED. 4. One 4-digit common anode LED display. 5. One 1.3-inch TFT LCD display interface, which can also be used for OLED displays. 6. One NTC temperature sensor and one light sensor.
7. 20 LED beads for a running light display. 8. One power switch.
 
 
III. Rendering
1: 3D view and actual image of the development board PCB front.
IV. Development Board Circuit Description and Usage:
1. The development board has a power-on switch circuit. When the button is pressed, the system will power on. When the MCU has no program, press the P3.2 button and then press the power button to power on the MCU. The computer can then recognize the chip and enter the programming mode. When the system has a program, it can detect power-on and pull P1.4 high to power on the system. Powering off can be done by detecting the button status on P1.6 and pulling P1.4 low
. 2. The development board has 10 LEDs on each side, orange on the left and blue on the right.
3. The top of the development board has a 4-digit common anode digital tube, which can be connected to an external clock module to display the time and can be used for other digital displays.
4. One CAN bus interface, pre-installed on the pin header for easy debugging.
 5. The board uses one RGBW LED for display, and one WS2812 LED on the right side for driving different LED effects in different scenarios.
6. The board uses a 1.3-inch TFT display to drive the SPI-driven color screen display.
Currently, only program download, flow lights, and button functions have been tested. Other functions have not been tested and will be added and updated later when time permits.