MCUSTM32F402

The MCUSTM32F402 is one of the core MCU modules of the STM32World series of modular development boards. It features the mysterious STM32F402 MCU and a USB plug.

The build of this STM32World development board was part of an order that was sponsored by JLCPCB.

The board on the lower right is the MCUSTM32F402.

Features

• STM32F402 MCU
• 256 kB Flash Memory
• 64 kB of RAM
• 16 MHz crystal (up to 168 MHz internal clock frequency)
• USB-C connector on FS port
• Green Power LED
• Blue user led on PC13

Videos

The STM32F402 has been featured in several of our rants.

The first one:

And a follow up:

Developing PCB:

Test of the final build:

Schematics

MCU ID

As suspected, this is a very woke MCU. It is a STM32F401 but it identifies as a STM32F402 (or is it the other way around?).

lth@ncpws04:~$ st-info --probe
Found 1 stlink programmers
  version:    V2J46S31
  serial:     066BFF39374B513043014314
  flash:      262144 (pagesize: 16384)
  sram:       65536
  chipid:     0x423
  dev-type:   STM32F401xB_xC

In STM32CubeProgrammer it will appear like this:

Miscellaneous Links

• STM32F402 Chinese Datasheet
• STM32F401 Datasheet (equivalent MCU)