Features:
25MHZ high speed crystal & 32.768Khz 6PF low speed crystal
Flash pads have been reserved to provide USBDisk&&FATFFS routines
The jumper cap does not need to be installed and can be used directly. BOOT0 internal 10K resistor pull down
The breathing light &&USBCDC test program has been programmed in the factory.
Provides available MicroPython firmware, see link for configuration files does not provide technical answers!
If the jumper cap cannot be installed, please adjust the direction of the jumper cap. Because the jump cap is wide on one side and narrow on the other.
The board with version V1.3 has 3 buttons, reset button, BOOT0 button and user button.
Regarding software download and firmware download, there is a lot of online information. If you can’t find it online, ask the customer service to cultivate your learning ability and information search ability.
Serial port download and DFU download of version V1.3: serial port is connected to PA9, PA10 (dfu mode is connected to usb) press the BOOT0 key and the reset key, then
Release the reset button, release the BOOT0 button after 0.5 seconds, you can enter the serial port download or DFU download, the corresponding software is flymcu or CubeProg.
Jump cap version download: connect BOOT0 to high, connect BOOT1 to high, enter serial download or DFU download, the software is the same as above.