Skriv http://dan.drown.org/stm32duino/package_STM32duino_index.json i File/Preferences/Additional Boards Manager URLs: (Fil/Instillinger/Flere 'Boards Manager' URLer:). Oppdater (Greit) og velg deretter menyvalget Tools/boards/Board Manager (Vertøy/Kort/Kort Administrasjon) og søk etter SMT32.
In the F401 series, the chip is the cheapest, even cheaper than some F1, and crushed F1 on the main frequency, and has a floating-point arithmetic module, the IO port contains all the basic functions. Therefore, it is possible to provide a learning platform with a very high cost performance for beginners. In practical applications, it is not because the computing power is insufficient, and the IO port is incomplete and hinders development.
25MHZ high speed crystal oscillator 32.768k low speed crystal oscillator
STM32F401CCU6 core board 64KB RAM 256KB ROM
BOOT settings are changed from jumper to button to reduce the installation trouble by pressing
BOOT0 and NRST, releasing NRST to access serial port download, DFU download, providing ST official multi-in-one STM32 Cube Programmer burning software.
The GND is changed to 5V B9 5V GND, which can directly connect a small steering gear without additional wiring and reduce development time.
Previous versions of the sole can not be welded to the foot, no impact.
2. Flash pads are reserved, providing USBDisk&&FATFFS routines
3. Jumper cap can be used directly without installation.BOOT0 internal 10K resistance pull-down
4. Factory has burned breathing lamp &&USBCDC test procedures.
5. Provide available MicroPython firmware, configuration files
6. Adjust the direction of the jumping cap if it cannot be installed.Because the jump cap is wide on one side and narrow on the other.
7. V1.3 board with 3 buttons: reset key, BOOT0 key and user button.
V1.3 serial download and DFU download: connect to PA9 and PA10 (connect to usb in DFU mode) by pressing BOOT0 key and reset key, and then release the reset key. After 0.5 seconds, release the BOOT0 key to enter serial download or DFU download. The corresponding software is flymcu or CubeProg.
Jump cap version download: BOOT0 connect to high, BOOT1 connect to high, enter the serial port to download or DFU download, the software is the same as above.
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