STC32G12K128 core board

This core board uses the latest STC32G12K128 microcontroller with fully exposed interfaces supporting USB download. USB-ISP download steps: 1. Press the P3.2/INT0 button on the board to ground P3.2. 2. Power on the target chip, regardless of whether it was previously powered on. ===The electronic switch turns off power when pressed and powers on when released. Wait for the STC-ISP download software to automatically recognize "STC USB Writer (HID1)". Once recognized, the P3.2 status is irrelevant; you can then release the P3.2 button.===The traditional mechanical self-locking switch turns off power when pressed up and powers on when pressed down. 3. Click the "Download/Programming" button in the download software (Note: the operation sequence for USB download and serial download is different). Download successful! ===Additionally, when performing a soft reset from the user area to the system area, it also requires waiting for USB download.
 
Note: 1. Except for P3.0 and P3.1, all other I/O ports are in a high-impedance input state after power-on. Users must set the I/O port mode before using it. 2. All I/O ports can be set to quasi-bidirectional port mode, strong push-pull output mode, open-drain output mode, or high-impedance input mode. Each I/O port can also independently enable its internal 4K pull-up resistor. 3. When P5.4 is enabled as the reset pin, the reset level is low. 4. The ADC's external reference power supply pin, ADC_VRef+, must not be floating; it must be connected to an external reference power supply or directly to Vcc. 5. If USB download is not required, P3.0/P3.1/P3.2 must not be low simultaneously during chip reset.