STM32F103RET6 - Generic Board

Overview

Board	Name	Generic Board
	Brand	Unknown
	Origin	AliExpress, China
Microcontroller	Part	STM32F103RET6
	Package	LQFP64
	Core	Cortex-M3
	FLASH	512KB
	SRAM	64KB
	Max. Clock Speed	72MHz
Crystals	HSE (High Speed External)	8MHz
	LSE (Low Speed External)	32.768kHz
Power	Sources	Any +3.3V pin (+3.3V) Any +5V pin (+5V) USB connector (+5V)
	Regulator manufacturer	Advanced Monolithic Systems Inc.
	Regulator part number	AMS1117
	Regulator package	SOT223
	Output	+3.3V @ 1000mA
	Battery holder	Yes
Connectivity	Headers	2x 2x15 male dupont (2.54mm)
	Specific	None
	Debug	JTAG (20-pin IDC))
	USB	Mini
I/O	LEDs	Power LED (PWR, +5V) User LED (LED1, PB11, sink)
Buttons, switches and jumpers	Reset button (RST, NRST, active low) DIP-Switch (BOOT0, BOOT1) Switch (SW2, +5V USB enable)
Other devices	None
PCB	Colour	Blue
	Size	50mm x 50mm
	Mounting	4x mounting hole (M2)
Remarks	Warning: The +5V pins on this board are directly connected to the +5V pin of the USB connector. There is no protection in place. Do not power this board through USB and an external power supply at the same time. Note: This board has a switch to enable the +5V from the USB connector. Note: This generic board comes in three different forms, one with an STM32F103RBT6 microcontroller, one with an STM32F103RCT6 microcontroller and one with an STM32F103RET6 microcontroller.

Pictures

Header 1

Pin	Connected to
B10	PB10
B11	PB11
B1	PB1
B2	PB2
C5	PC5
B0	PB0
A7	PA7
C4	PC4
A5	PA5
A6	PA6
A4	PA4
3.3V	+3.3V rail
GND	Ground plane
A3	PA3
A2	PA2
A1	PA1
A0	PA0
VDDA	VDDA
GND	Ground plane
C3	PC3
C2	PC2
C1	PC1
C0	PC0
RST	NRST
D1	PD1
D0	PD0
C15	PC15
C14	PC14
C13	PC13
C12	PC12

Header 2

Pin	Connected to
B9	PB9
B8	PB8
3.3V	+3.3V rail
B7	PB7
B6	PB6
B5	PB5
B4	PB4
B3	PB3
D2	PD2
C12	PC12
C11	PC11
C10	PC10
A15	PA15
A14	PA14
3.3V	+3.3V rail
GND	Ground plane
A13	PA13
A12	PA12
A11	PA11
A10	PA10
A9	PA9
A8	PA8
C9	PC9
C8	PC8
C7	PC7
C6	PC6
B15	PB15
B14	PB14
B13	PB13
B12	PB12

USB

Pin	Connected to
VCC	+5V rail
D-	PA11
D+	PA12
ID	N.C.
GND	Ground plane

JTAG

Pin	Connected to	JTAG	SWD
1	+3.3V rail	VCC	-
2	+3.3V rail	VCC	-
3	PB4	TRST	-
4	Ground plane	GND	-
5	PA15	TDI	-
6	Ground plane	GND	-
7	PA13	TMS	SWDIO
8	Ground plane	GND	-
9	PA14	TCLK	SWCLK
10	Ground plane	GND	-
11	N.C.	RTCK	-
12	Ground plane	GND	-
13	PB3	TDO	SWO
14	Ground plane	GND	-
15	NRST	RESET	-
16	Ground plane	GND	-
17	N.C.	N.C.	-
18	Ground plane	GND	-
19	N.C.	N.C.	-
20	Ground plane	GND	-

Serial

Pin	Connected to
GND	Ground plane
Tx	PA9
Rx	PA10
3.3V	+3.3V rail

Power

Pin	Connected to
GND	Ground plane
3.3V	+3.3V rail
5V	+5V rail
5V	+5V rail