Open207Z-C Standard

Overview

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

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
21. POWER JMP
    • 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

What's on the Core207Z

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
7. VBUS LED
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

Photos

Open207Z-C development board

Open207Z-C development board

Open207Z-C development board back view

Open207Z-C mother board

MCU core board Core207Z

MCU core board Core207Z

Connecting to a debugger

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)

Connecting to USB device through OTG cable

Connecting to USB3300 USB HS Board

Connecting to UDA1380 Board

Connecting to OV7670 Camera Board

Connecting to RS232 Board

Connecting to RS485 Board

Connecting to USB UART Board

Connecting to CAN Board

Connecting to 8 Push Buttons

Connecting to 5 IO Keypad

Connecting to AD Keypad

Test Board on the AD/DA port

Connecting to FRAM Board

Multi I2C peripheral Module connected to the I2C bus

Connecting to DataFlash Board

Connecting to VS1003B MP3 Board

Connecting to NRF24L01 RF Board

Connecting to Micro SD Storage Board

Connecting to NandFlash Board

Connecting to NorFlash Board

Connecting to SRAM Board

Connecting to Ethernet Board

Connecting to any accessory board you need

Note:
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

Figure 2. 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.)