Custom STM32F401 Development Board V3.0 STM32F401CCU6 STM32F411CEU6 STM32F4 Learning Board 84Mhz 96KB RAM 512KB/100Mhz 128KB RAM 512KB

1.25MHZ high speed crystal oscillator & 32.768Khz 6PF low speed crystal oscillator

2. Flash pad has been reserved and USBDisk&&FATFFS routines are provided

3 Jumper caps can be used directly without installation. BOOT0 internal 10K resistance pull-down

4 Factory has burned breath lamp &&USBCDC test procedure.

5 Provide available MicroPython firmware, configuration file see link does not provide technical answers!

6 Adjust the direction of the jump cap if it cannot be installed. Because the jump cap is wide on one side and narrow on the other.

7 version V1.3 board with 3 buttons, reset key, BOOT0 key, user key.

About software download, firmware download, there are a lot of information online, online can not find the time to ask customer service, cultivate their learning ability, data search ability.

V1.3 Serial port download and DFU download: Serial port connect PA9, PA10 (connect usb in dfu mode) hold down the BOOT0 key and reset key, then

Release the reset key, and release the BOOT0 key 0.5 seconds later to download the serial port or DFU. The corresponding software is flymcu or CubeProg.

Jump version download: BOOT0 is high, BOOT1 is high, go to the serial port download or DFU download, the software is the same as above.