STM32F103C8T6 development board

This is an ARM core board based on STM32F103C8T6 as the main chip. The features are as follows: 1. The board is equipped with the most basic circuit based on MCU, 8M and 32768 crystal circuits, and USB power circuit.

2. The core board is divided into two rows to lead to all I/O ports.

3. With SWD simulation debugging download interface, it is simple and convenient, and the debugging speed is fast.

4. The Mirco USB interface is used for USB communication and power supply. The USB interface is compatible with ordinary Android mobile phone charger interfaces.

6. The RTC crystal oscillator uses the Epson brand, which is easy to start and more stable.

Chip introduction:

1、STM32F103C8T6

Package type: LQFP;

Number of pins: 48;

Core: Cortex-M3;

Working frequency: 72MHz;

Storage resources: 64K Byte Flash, 20KByte SRAM;

Interface resources: 2x SPI, 3x USART, 2x I2C, 1x CAN, 37x I/O port,

Analog-to-digital conversion: 2x ADC (12-bit/16 channels)

Timers: 3 ordinary timers and 1 advanced timer

Debug download: Support debug download of JTAG/SWD interface and support IAP.

2. RT9193: 3.3V voltage regulator chip, maximum output 300mA.

Interface introduction:

1. SWD interface: supports simulation, downloading and debugging.

2. Mirco USB interface: power supply and USB communication function, does not support downloading.

3. USART1 interface: It can be used to download programs through USART1, or use USART1 for communication.

4. MCU pin interface: Lead out all I/O port pins to facilitate connection with peripherals.

5. 5V and 3.3V power input and output interfaces: often used for external power supply, or for common ground processing with other modules

Introduction to other devices:

1. Power LED (PWR): indicates the status of the power supply and can determine whether the power supply is stable.

2. User LED (PC13): Convenient for I/O output testing or indicating program running status.

3. Start the popup and select the programming method: (1. User flash memory 2. SRAM 3. System memory).

RAM 3, system memory).

4. Reset button: used by users to reset the chip program.

5. 8M crystal oscillator: The system main frequency can be set to 72MHz through frequency multiplication setting.

6. 32.768KHz crystal oscillator: can be used for built-in RTC or for calibration.