Open207Z-C Standard


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STM32 development board designed for the STM32F207ZxT6 MCU, and integrates various standard interfaces, pretty easy for peripheral expansions.

STM32F207ZxT6 development board


Open207Z-C is an STM32 development board designed for the STM32F207ZxT6 microcontroller, consists of the mother board and the MCU core board Core207Z.

The Open207Z-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

STM32F207ZxT6 development board on board resource

  1. MCU core board connector: for easily connecting the MCU core board
  2. ULPI interface: for connecting high-speed USB peripheral (the STM32F207Z integrates USB HS controller without any PHY device)
  3. 16-bit FSMC + SPI interface: for connecting touch screen LCD
  4. 8-bit FSMC interface: easily connects to peripherals such as NandFlash, Ethernet, etc.
  5. SPI1 / SPI2 + AD / DA interface
    • for connecting SPI peripherals such as DataFlash (AT45DBxx), SD card, MP3 module, etc.
    • for connecting AD/DA module as well, thanks to the SPI1 AD/DA alternative function
  6. SDIO interface: for connecting Micro SD module, features much faster access speed rather than SPI
  7. I2S2 / I2S3 / I2C1: for connecting I2S peripherals, such as Audio module
  8. USART2 interface: easily connects to RS232, RS485, USB TO 232, etc.
  9. CAN1 interface: for connecting CAN module
  10. CAN2 interface: for connecting CAN module
  11. I2C1 / I2C2 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), FRAM (FM24CLxx), etc.
  12. DCMI interface: for connecting camera module
  13. UART3 interface: easily connects to RS232, USB TO 232, etc.
  14. Ethernet interface: easily connects the MCU to ethernet network by using an additional ethernet module
  15. ONE-WIRE interface: easily connects to ONE-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.
  16. PS/2 interface: easily connects to PS/2 keyboard and/or mouse
  17. 16-bit FSMC interface: easily connects to peripherals such as NorFlash, SRAM, etc.
  18. 5V DC jack
  19. 5V/3.3 V power input/output: usually used as power output, also common-grounding with other user board
  20. MCU pins connector: all the I/O ports are accessible on expansion connectors for further expansion
    • 5VDC: powered from 5V DC jack
    • Core5V: powered from the MCU core board
  22. LEDs jumper
  23. User key / Wake-Up button jumper
  24. Joystick jumper
  25. PS/2 jumper
  26. LEDs: convenient for indicating I/O status and/or program running state
  27. User key: convenient for I/O input and/or interact with running code
  28. Wake-Up button: wake up the STM32 MCU from sleep mode, also used as regular user key
  29. Joystick: five positions

For jumpers 22-25:

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

What's on the Core207Z

Core207Z on board resource

  1. STM32F207ZxT6: 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: LQFP144
    • Memories: 512kB/1024kB Flash, 128+4kB SRAM
    • MCU communication Interfaces:
      • 3 x SPI, 4 x USART, 2 x UART, 2 x I2S, 3 x I2C
      • 1 x FSMC, 1 x SDIO, 2 x CAN
      • 1 x USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, ULPI and on-chip full-speed PHY
      • 1 x 10/100 Ethernet MAC
      • 1 x 8 to 14-bit parallel camera interface
    • AD & DA converters: 3 x AD (12-bit, 1μs, shares 24 channels); 2 x DA (12-bit)
    • Debugging/Programming: supports JTAG/SWD (serial wire debug) interfaces, supports IAP
  2. AMS1117-3.3 (on bottom side): 3.3V voltage regulator
  3. MIC2075 (on bottom side): onboard USB power management device
  4. Power supply switch, powered from 5Vin or USB connection
  5. Boot mode switch, for configuring BOOT0 pin
  6. Power indicator
  8. Reset button
  9. 8M crystal oscillator (on bottom side)
  10. 32.768K crystal (on bottom side), for internal RTC with calibration
  11. JTAG/SWD interface: for debugging/programming
  12. USB interface
    • as DEVICE, used for establishing USB communication between PC and the STM32 development board
    • as HOST, connecting to USB devices such as USB flash drive through a USB OTG cable
  13. MCU pins expander, VCC, GND and all the I/O ports are accessible on expansion connectors for further expansion
  14. 5Vin pinheader, 5V power supply is required when using USB HOST/OTG
  15. USB HOST/OTG jumper
    • short the jumper when using USB HOST/OTG
    • open the jumper to disconnect from I/O port
  16. VBAT selection jumper
    • short the jumper to use system power supply
    • open the jumper to connect the VBAT to external power, such as battery
  17. VREF selection jumper
    • short the jumper to connect VREF+ to VCC
    • open the jumper to connect VREF+ to other custom pin via jumper wire


STM32 Development Board
Open207Z-C development board
STM32 Development Board
Open207Z-C development board
STM32 Development Board
Open207Z-C development board back view
STM32 Development Board
Open207Z-C mother board
STM32 MCU Core Board
MCU core board Core207Z
STM32 MCU Core Board
MCU core board Core207Z
STM32 Development Board
Connecting to a debugger
STM32 Development Board
Connecting to various peripherals
Open207Z-C μC/OS-II (Ⅰ)
Open207Z-C μC/OS-II (Ⅱ)
Open207Z-C μC/OS-II (Ⅲ)
Open207Z-C μC/OS-II (Ⅳ)
USB Device
Connecting to USB device through OTG cable
USB3300 USB HS Board
Connecting to USB3300 USB HS Board
UDA1380 Board
Connecting to UDA1380 Board
OV7670 Camera Board
Connecting to OV7670 Camera Board
RS232 Board
Connecting to RS232 Board
RS485 Board
Connecting to RS485 Board
PL2303 USB UART Board mini
Connecting to USB UART Board
SN65HVD230 CAN Board
Connecting to CAN Board
8 Push Buttons
Connecting to 8 Push Buttons
5 IO Keypad
Connecting to 5 IO Keypad
AD Keypad
Connecting to AD Keypad
Analog Test Board
Test Board on the AD/DA port
Connecting to FRAM Board
I2C cascading x3
Multi I2C peripheral Module connected to the I2C bus
AT45DBXX DataFlash Board
Connecting to DataFlash Board
VS1003B MP3 Board
Connecting to VS1003B MP3 Board
NRF24L01 RF Board
Connecting to NRF24L01 RF Board
Micro SD Storage Board
Connecting to Micro SD Storage Board
NandFlash Board
Connecting to NandFlash Board
NorFlash Board
Connecting to NorFlash Board
SRAM Board
Connecting to SRAM Board
DP83848 Ethernet Board
Connecting to Ethernet Board
Connecting to any accessory board
Connecting to any accessory board you need

The Open207Z-C supports programming via STM32 UART bootloader, a USB TO UART accessory board is also provided in the package.
The Open207Z-C 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

The User Guide CD includes development resources listed as follow:

  • Related software (KEIL etc.)
  • Demo code (examples in C, μC/OS-II)
  • Schematic (PDF)
  • STM32 development documentations (Datasheet etc.)


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Open207Z-C Standard

Open207Z-C Standard

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