The pin sequence is compatible with common 40P core boards on the market. The relevant test code is written by STM32Cubeide . Please see the attachment for details.

Progress: 2022.05.04 V1.0 starts board verification

2022.05.18 V1.1 has been board tested and the C8T6 works normally

2022.05.26 V1.1 Modify the OLED time display code, add port configuration pictures, CAN to be tested

2022.07.25 V1.2 Modifies the 0402 resistor and capacitor package and replaces all with 0603 to facilitate welding. Friends who have verified are welcome to leave a message in the comment area

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In the process of learning STM32, I came into contact with many high-quality tutorials. The traditional minimal system board on hand could not meet the needs due to too few pins, so I created this project based on the STM32CubeIDE+HAL library.

The PCB integrates automatic download, BOOT manual selection, large-capacity W25Q128 memory, 0.96OLED display, CAN bus, 3-way buttons, buzzer, backup battery and other basic peripherals.

Note: You may need to manually reset after programming using the serial port and SWD. The operation method is: press the BOOT0 and RST buttons at the same time.

Features:

There is no need to select when using serial port programming, one-click operation;

Compatible with traditional STM32C8T6 core board packaging and pin definitions

Integrated 0.96 OLED display to facilitate user debugging

Although the RTC clock battery is reserved , it drains out quickly.

Port configuration and description

CUBE MX configuration is as follows, using four-wire SW debugging method and debugging tool J-LINK.

GPIO definition

I2C definition

SPI definition

USART are both 115200Bits/s, 8Bit, None, 1

Clock tree main configuration

Project pictures

1. Front view-TOP

2.TYPEC programming serial port and power supply

3. Bottom view-BOTTOM

4.OLED power-on display-TEST

5.OLED clock display-RTC

6.RS485&sleep mode

7. Demo video