Chip Introduction:
1. STM32F103C8T6
Encapsulation type: LQFP;
Number of pins: 48;
Core: Cortex
-M3 ；
Operating frequency: 72MHz;
Storage resources: 64K Byte Flash, 20KByte SRAM;
Interface resources: 2x SPI, 3x USART, 2x I2C, 1x CAN, 37x I/O ports,
Analog to digital conversion: 2x ADC (12 bits/16 channels)
Timer: 3 regular timers and 1 advanced timer
Debugging download: Supports debugging download of JTAG/SWD interface and IAP.
2. RT9193: 3.3V voltage regulator chip, maximum output 300mA.
The other MCU parameters are as follows
Interface Introduction:
1. SWD interface: supports simulation, download, and debugging.
2. Mirco USB interface: power supply and USB communication function, does not support downloading.
3. USART1 interface: can be used for downloading programs from USART1 or for communication using USART1.
4. MCU Pin Interface: Leads out all I/O pins for easy connection with peripherals.
5. 5V and 3.3V power input/output interfaces: commonly used for external power supply or common ground processing with other modules
Introduction to other components:
1. Power LED (PWR): Power indicator status, which can determine whether the power supply is stable.
2. User LED (PC13): facilitates I/O output testing or indicates program running status.
3. Programming method for startup jump: (1. User flash memory 2. SRAM 3. System memory).
4. Reset button: used for users to reset the chip program.
5. 8M crystal oscillator: The system's main frequency can be set to 72MHz through frequency doubling.
6. 32.768KHz crystal oscillator: can be used for built-in RTC or for calibration.
