This is a chip based on ARM core STM32F407VET6 main board has the following characteristics:
1, the MCU board based on the most basic circuits, such as crystal oscillator circuit, USB power management circuitry and USB interface.
2, the core board raises all the I / O port resources.
3, with SWD debugging emulator download interface, which requires a minimum of three lines can be completed commissioning download tasks, compared to traditional JTAG debugging a lot of benefits here interject, JTAG is now a great tendency to be phased out, such as ST's new out M0 MCU series to retain only the SWD debug interface, JTAG directly canceled.
4, the use of smart phones currently used by Mirco USB interface easy to use, do USB communications and power supply.
5, the system oscillator core board (25MHz) using precision high-quality low-load NDK's NX5032GA, without the use of inexpensive steel crystal.
6, for the STM32 RTC can not afford to vibration problems, we recommend the use of the official program of low load RTC Crystal and use the Epson brand crystal, without the use of an inexpensive cylindrical crystal.
7, core board with EEPROM, AT24C08 convenient model for core board for data storage.
8, the power regulator chip is rf-level LDO running MCU provides a good power supply environment.
9, with a corresponding high pitch of 2.54mm double row pin, to ensure good conductive contact, user-friendly core plate was placed into a standard-purpose board or breadboard. Pin the default is not welding, the user can choose according to their needs welding direction.Interface Overview:
1, SWD interface: Support simulation, download and debug.
2, Mirco USB Interface: USB power supply and communications functions, does not support downloading.
3, USART1 Interface: USART1 can be used to download the program, or use USART1
Communication.
4, MCU pin interface: leads all I / O port pins, convenient and peripherals connect.
5,5V to 3.3V power supply input and output interfaces: commonly used in the external power supply, or with other modules
Co-processed
Other Device Overview:
1, the power LED (PWR): Indicates the power status can determine whether the power is stable.
2, the user LED (PB9): to facilitate I / O output test or indicative program running.
3, take the jump start select the programming mode: (1 user flash memory 2, SRAM 3, the system memory).
4, the reset button: reset chip for user programs.
5,25M Crystal: You can set the system so that by doubling clocked at 168MHz.
6,32.768KHz Crystal: the use of available built-in RTC, or for calibration.
