Note
The board has been tested already. It has been downloaded inside a led flashing program. When power supply to the board, the red light(power light) will on, three green light (debugging light) will flicker once per second.
Description
1, STM32F103RBT6 chip main parameters:
CPU frequency (M) 72
FLASH (bytes) 128KB
RAM (bytes) 20KB
Timer (pcs) 4
SPI interface (pcs) 2
IIS interface (pcs) 2
IIC interface (pcs) 2
USART interface (pcs) 3
USB interface (pcs) 1
CAN interface (pcs) 1
SDIO interface (pcs)1
ADC (channel) 16
I / O port 51
2, the standard ARM JTAG 20 PIN Simulation Interface Block (easy to connect to JLINK, ULINK2 and other mainstream emulator)
3, USB-powered, the largest provider of 800mA current .
4, support serial port 1 download. Removing the shorting cap on the figure to enter the serial ISP download.
5, 8mhz clock crystal ,and 32.768khz RTC clock oscillator.
6, all IO ports are leads, convenient for access to external circuit to do experiments.
7, the power indicator (red)
8, 3-way LED lights (green), to facilitate debugging use.
9, 3-way independent keys (black), to facilitate debugging use
10, reset: power-on reset and button reset (red)
11, leads the ISP download interface, convenient external serial small plates for ISP program download.
12, USB communication pin through a single row of pin leading, convenient for USB communication experiment (using DuPont line connection).
13, 2-way external expansion 5v power supply interface to facilitate the use of an external circuit.
14, PCB board size: 6.9cm * 5.7cm


