Overview

Open8S208Q80 is a STM8 development board that features a STM8S208MB device as the microcontroller. It 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 STM8 microcontroller.

What's On Board

1. STM8S208MB:the high performance STM8 MCU which features:
   • Core: 8-bit
   • Operating Frequency: 24 MHz(20 MIPS) Max
   • Operating Voltage: 2.7-5.5V
   • Package: LQFP80
   • I/Os: 68
   • Memories: 128kB Flash, 6kB SRAM, 2kB EEPROM
   • Communication Interfaces: 1 x SPI, 1 x I2C, 2 x UART, 1 x CAN, 12 x PWM, 16 x ADC
   • Debugging/Programming: SWIM
2. AMS1117-3.3: 3.3V voltage regulator
3. Power switch
4. Power indicator
5. LEDs: convenient for indicating I/O status and/or program running state
6. Reset button
7. User keys: for I/O input test and/or program control
8. Joystick: five positions
9. 8M crystal oscillator
10. Adjustable resistor: for LCD12864 contrast adjustment
11. UART1 interface: for connecting UART peripherals, such as RS232, RS485, USB TO UART, etc.
12. CAN interface: for connecting CAN modules
13. PS/2 interface: for connecting PS/2 devices, such as keyboard and/or mouse
14. SPI interface: for connecting SPI peripherals, such as DataFlash (AT45DBxx), SD card, MP3, etc.
15. 16 I/Os interface: for connecting accessory boards which using I/O control, such as FT245 USB FIFO, 8 SEG LED, etc.
16. I2C interface: for connecting I2C peripherals, such as I/O expander (PCF8574), EEPROM (AT24Cxx), etc.
17. UART3 interface: for connecting UART peripherals, such as RS232, RS485, USB TO UART, etc.
18. Graphic multi-color LCD interface: for connecting 2.2 inch multi-color touch screen LCD which using SPI control
19. Graphic dot-matrix LCD interface: for connecting graphic LCDs such as LCD12864
20. 1-WIRE interface: for connecting 1-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.
21. 5V DC jack
22. Custom crystal socket
23. VCC power input/output: usually used as power output, also common-grounding with other user board
24. MCU pins connector: all the MCU pins are accessible on expansion connectors for further expansion
25. SWIM interface: for debugging/programming
26. User keys jumper
27. Joystick jumper
28. 1-WIRE jumper
29. LEDs jumper
30. PS/2 jumper
31. LCD interface selection jumper
• short the jumper for dot-matrix LCD
• open the jumper for multi-color LCD
32. VDD selection jumper
33. Crystal selection jumper
34. VREF selection jumper

For jumpers 26-30:

• short the jumper to connect to I/Os used in example code;
• open the jumper to connect to other custom pins via jumper wires.

Photos

Open8S208Q80 Development Board

Open8S208Q80 Development Board Back View

Connecting to a debugger

Connecting to various peripherals

Connecting to touch screen LCD

Connecting to LCD12864

Connecting to CAN Board

Connecting to RS232 Board

Connecting to RS485 Board

Connecting to USB UART Board

Connecting to USB FIFO Board

Connecting to 8 SEG LED

Connecting to 8 Push Buttons

Connecting to 5 IO Keypad

Connecting to AD Keypad

Connecting to Capacitive Touch Keypad

Connecting to EEPROM Board

Connecting to RTC Board

Multi I2C peripheral Module connected to the I2C bus

Connecting to DataFlash Board

Connecting to NRF24L01 RF Board

Connecting to any accessory board you need

Note: The Open8S208Q80 does NOT integrate any debugging function, a debugger is required.

SWIM Interface

The figure below shows the header pinout of SWIM interface

Development Resources

The User Guide CD includes development resources listed as follow:

• Related Software (ST Visual Develop, Cosmic)
• Demo Code (examples in C, based on ST Visual Develop, Cosmic)
• Schematic (PDF)
• STM8 Development Documentations (Datasheets etc.)