Core103V, STM32F1 Core Board

Description

STM32 small board with the STM32F103VET6 MCU, full IO expander, JTAG/SWD debug interface

Overview

Core103V is a small STM32 development board that features an STM32F103VET6 device as the microcontroller, supports further expansion. It is ideal for starting application development with STM32F family.

As a minimal ready-to-run system, the Core103V integrates USB communication interface, JTAG/SWD programming/debugging interface, clock circuit, boot mode selection, and so on.

Furthermore, pin headers on the backside allow the Core103V to be plugged-in your application board and act as the MCU core circuit in your system. All the I/O ports are accessible on the pin headers, and the header pitch is designed as 2.54mm.

What's On Board

1. STM32F103VET6:the high performance STM32 MCU which features:
   • Core: Cortex-M3 32-bit RISC
   • Operating Frequency: 72MHz, 1.25 DMIPS/MHz
   • Operating Voltage: 2-3.6V
   • Package: LQFP100
   • I/Os: 80
   • Memories: 512kB Flash, 64kB RAM
   • MCU communication Interfaces:
     • 3 x SPI, 5 x USART, 2 x I2S, 2 x I2C, 1 x FSMC, 1 x LCD, 1 x SDIO, 1 x USB, 1 x CAN
   • AD & DA converters: 3 x AD (12-bit, 1μs, shares 16 channels); 2 x DA (12-bit)
   • Debugging/Programming: supports JTAG/SWD (serial wire debug) interfaces, supports IAP
2. AMS1117-3.3 (on bottom side): 3.3V voltage regulator
3. Power supply switch, powered from 5Vin or USB connection
4. Boot mode selection, for configuring BOOT0 pin
5. Boot mode selection (on bottom side), for configuring BOOT1 pin
6. Power indicator
7. VBUS LED
8. Reset button
9. 8M crystal oscillator
10. 32.768K crystal (on bottom side), for internal RTC with calibration
11. JTAG/SWD interface: for debugging/programming
12. USB connector, used for establishing USB communication between PC and the STM32 development board
13. IO expander (including VCC/GND), all the I/O pins are accessible on expansion connectors for further expansion
14. 5Vin pinheader, 5V power supply input
15. USB enable jumper
    • short the jumper to enable USB function
    • open the jumper to disable, as well as taking up no I/O port
16. VBAT selection jumper
    • short the jumper to use system power supply
    • open the jumper to connect the VBAT to external power, such as battery
17. VREF selection jumper
    • short the jumper to connect VREF+/VREF- to VCC/GND
    • open the jumper to connect VREF+/VREF- to other custom pin via jumper wire

Photos

Note:
Core103V provides JTAG/SWD debugging interface, yet does NOT integrate any debugging function, a debugger is required.
Mother board and programmer/debugger in the photos are NOT included in the price.

JTAG/SWD Interfaces

The figure 1, figure 2 shows the header pinout of JTAG, SWD interface respectively

Figure 1. JTAG Header Pinout

Figure 2. SWD Header Pinout

Development Resources

• Related software (KEIL etc.)
• Examples in C
• Schematic (PDF)
• Development documentations

Wiki: www.waveshare.com/wiki/Core103V

Dimensions