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STM32 development board designed for STM32F103R series, features the STM32F103RCT6 MCU, and integrates various standard interfaces, pretty easy for peripheral expansions.

STM32F103RCT6 development board

Overview


Open103R is a STM32 development board that features a STM32F103RCT6 device as the microcontroller. There are further expansions with various optional accessory boards for specific application. The modular and open design makes it the ideal for starting application development with STM32F family.




What's On Board


STM32F103RCT6 development board on board resource

  1. STM32F103RCT6:the high performance STM32 MCU in LQFP64 package which features

    • Core: ARM Cortex-M3 32-bit RISC;

    • Operating Frequency: 72MHz, 1.25 DMIPS/MHz;

    • I/Os: 51;

    • Operating Voltage: 2-3.6V;

    • Memories: 256kB Flash, 48kB RAM;

    • Communication Interfaces: 2 x SPI, 5 x USART, 2 x I2S, 2 x I2C, 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: 3.3V voltage regulator;

  3. Power supply switch: 5V DC or USB;

  4. Power indicator;

  5. LEDs: Convenient for indicating I/O status or program debugging running state;

  6. Reset button;

  7. User key;

  8. Joystick: Convenient for I/O input (five positions);

  9. 32.768K crystal oscillator: used for internal RTC, also supports clock calibration;

  10. 8M crystal oscillator: enables the MCU run at 72M frequency by frequency multiplication;

  11. SDIO interface: connects to the Micro SD adapter easily, It is much faster to read/write the Micro SD card via SDIO than via SPI;

  12. 8 I/O Interface: easily connects to keypad, motor, etc.;

  13. CAN interface: communicates with accessory board which features the CAN device conveniently;

  14. SPI1 / SPI2 interface


    • Easily connects to SPI peripherals such as FLASH (AT45DBxx), SD card, MP3, etc.;

    • Convenient for connecting AD, DA module, thanks to the SPI1 alternative function - AD&DA;


  15. I2C1 / I2C2 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), EEPROM (AT24Cxx), etc.;

  16. LCD interface: easily connects to the touch screen LCD;

  17. ONE-WIRE interface: easily connects to ONE-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.

  18. PS/2 interface: easily connects to PS/2 keyboard or mouse;

  19. USART1 interface: easily connects to RS232, RS485, USB TO 232;

  20. USART2 interface: easily connects to RS232, RS485, USB TO 232;

  21. USB port: USB communication between board and PC;

  22. 5V DC jack;

  23. 5V/3.3 V power input/output, usually used for power output, or common ground with other user board;

  24. MCU pins connector: all the MCU pins are accessible on expansion connectors for further expansion;

  25. JTAG/SWD interface: for debugging/programming;

  26. Boot mode selection: for configuring the BOOT0 and BOOT1 pins;

  27. USB enable jumper

    • Short the jumper to enable the PC auto detection while USB connecting;

    • Open the jumper to disable;



  28. PS/2 interface jumper

    • Short the jumper to connect the PS/2 device to I/Os used in example code;

    • Open the jumper to connect the PS/2 device to other custom pins via jumper wires;



  29. LEDs jumper

    • Short the jumper to connect the LEDs to I/Os used in example code;

    • Open the jumper to connect the LEDs to other custom pins via jumper wires;



  30. User key jumper

    • Short the jumper to connect the user key to I/Os used in example code;

    • Open the jumper to connect the user key to other custom pins via jumper wires;



  31. Joystick jumper

    • Short the jumper to connect the joystick to I/Os used in example code;

    • Open the jumper to connect the joystick to other custom pins via jumper wires;



  32. VBAT selection jumper

    • Short the jumper to use system power supply;

    • Open the jumper to connect the VBAT to external power, such as battery;





Photos



STM32 Development Board
Open103R Development Board

STM32 Development Board
Connecting to touch screen LCD

STM32 Development Board
Connecting to ST-LINK

STM32 Development Board
Connecting to various peripherals


Open103R μC/OS-II (Ⅰ)

Open103R-ucosii
Open103R μC/OS-II (Ⅱ)

Open103R-ucosii
Open103R μC/OS-II (Ⅲ)

Open103R-ucosii
Open103R μC/OS-II (Ⅳ)

RS232 Board
Connecting to RS232 Board via USART

PL2303 USB UART Board mini
Connecting to USB UART Board via USART

SN65HVD230-CAN-Board
Connecting to CAN Board via CAN

ENC28J60 Ethernet Board
Connecting to Ethernet Board via SPI

VS1003B MP3 Board
Connecting to VS1003B MP3 Board via SPI

NRF24L01 RF Board
Connecting to NRF24L01 RF Board via SPI

8 Push Buttons
8 Push Buttons on the 8Bit I/O

4x4 Keypad
4x4 Keypad on the 8Bit I/O

Analog Test Board
Test Board on the AD/DA port

AT24CXX EEPROM Board
Connecting to EEPROM Board via I2C

I2C cascading x3
Multi I2C peripheral Module connected to the I2C bus

AT45DBXX-DataFlash-Board
Connecting to DataFlash Board via SPI

Micro-SD-Storage-Board
Connecting to Micro SD Board via SDIO

Connecting to any accessory board
Connecting to any accessory board you need


 



Note:
The Open103R supports programming via STM32 USART bootloader, a USB TO UART accessory board is also provided in the package.
The Open103R does NOT integrate any debugging function, a debugger is required.




JTAG/SWD Interfaces


The figure 1, and 2 show the header pinouts of JTAG/SWD interface



Figure 1. JTAG Header Pinout
JTAG Header Pinout

Figure 2. SWD Header Pinout
SWD Header Pinout




Development Resources




  • Related softwares (KEIL etc.)

  • Demo code (examples in C, μC/OS-II)

  • Schematic (PDF)

  • STM32 development documentations (Datasheet etc.)


Wiki: www.utsource.net/wiki/Open103R


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