Open205R-C is an STM32 development board designed for the STM32F205RBT6 microcontroller, consists of the mother board and the MCU core board Core205R.
The Open205R-C supports further expansion with various optional accessory boards for specific application. The modular and open design makes it the ideal for starting application development with STM32F2 series microcontrollers.
What's on the mother board?
STM32F205RBT6 development board on board resource
MCU core board connector: for easily connecting the Core205R
UART3 interface: easily connects to RS232, USB TO 232, etc.
SDIO interface: for connecting Micro SD module, features much faster access speed rather than SPI
I2S2/I2S3/I2C1: for connecting I2S peripherals, such as Audio module
I2C1/I2C2 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), FRAM (FM24CLxx), etc.
SPI1/SPI2 + AD/DA interface
easily connects to SPI peripherals such as DataFlash (AT45DBxx), SD card, MP3 module, etc.
SPI1 features AD/DA alternative function, supports connecting AD/DA module as well
USART2 interface: easily connects to RS232, RS485, USB TO 232, etc.
LCD interface: for connecting touch screen LCD
ULPI interface: for connecting high-speed USB peripheral (the STM32F205R integrates USB HS controller without any PHY device)
UART1 interface: easily connects to RS232, USB TO 232, etc.
CAN2 interface: communicates with accessory boards which feature the CAN device conveniently
CAN1 interface: communicates with accessory boards which feature the CAN device conveniently
ONE-WIRE interface: easily connects to ONE-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.
5V DC jack
5V/3.3 V power input/output: usually used as power output, also common-grounding with other user board
MCU pins connector: VCC, GND, and all the I/O ports are accessible on expansion connectors for further expansion
LEDs jumper
short the jumper to connect to default I/Os used in example code
open the jumper to connect to custom I/Os via jumper wires
Joystick jumper
short the jumper to connect to default I/Os used in example code
open the jumper to connect to custom I/Os via jumper wires
User key/Wake-Up button jumper
short the jumper to connect to default I/Os used in example code
open the jumper to connect to custom I/Os via jumper wires
5V power selection jumper: powered from Core 5V or 5V DC
LEDs: convenient for indicating I/O status and/or program running state
User key: convenient for I/O input and/or interact with running code
Wake-Up button: wake up the STM32 MCU from sleep mode, also used as regular user key
Joystick: convenient for I/O input (five positions)
What's on the Core205R?
STM32F205RBT6 development board on board resource
STM32F205RBT6: the high performance STM32 MCU which features:
Core: Cortex-M3 32-bit RISC
Operating Frequency: 120MHz, 150 DMIPS/1.25 DMIPS/MHz
Operating Voltage: 1.8V-3.6V
Package: LQFP64
Memories: 128kB Flash, 64+4kB SRAM
MCU communication Interfaces:
3 x SPI, 4 x USART, 2 x UART, 2 x I2S, 3 x I2C, 1 x SDIO, 2 x CAN
1 x USB 2.0 HS/FS device/host/OTG controller with dedicated DMA, on-chip full-speed PHY
1 x USB HS ULPI (external PHY required)
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
AMS1117-3.3: 3.3V voltage regulator
MIC2075-2: onboard USB power management device
Power supply switch, powered from 5Vin or USB connection
Boot mode selection, for configuring BOOT0 pin
Power indicator
VBUS LED
Reset button
25M crystal
32.768K crystal, for internal RTC with calibration
JTAG/SWD interface: for debugging/programming
USB connector, used for establishing USB communication between PC and the STM32 development board
MCU pins expander, VCC, GND and all the I/O pins are accessible on expansion connectors for further expansion
5Vin pinheader, 5V power supply is required when using USB HOST/OTG
USB jumper
short the jumper when using USB
open the jumper to disconnect from related I/O port
VBAT selection jumper
short the jumper to use system power supply
open the jumper to connect the VBAT to external power, such as battery.
Package contains:
Open205R-C development board x 1
PL2303 USB UART Board (mini) x 1
USB type A plug to mini-B plug cable x 1
USB type A receptacle to mini-B plug cable x 1
4-pin 2-pin wires pack x 1
USB power cable x 1
User Guide CD x 1
Ethernet Cable [Extra Add From Package]
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