NVX-F4 Flash — STM32F4CEU6 + 16MB QSPI Flash

The NVX-F4 Flash builds on the NVX-F4 Bare by adding a 16MB QSPI NOR Flash chip (W25Q128JV), giving your STM32F4 project external non-volatile storage without extra wiring or modules.

KEY SPECIFICATIONS:
– MCU: STM32F4CEU6 — Cortex-M4 at 168MHz with FPU
– External Flash: 16MB W25Q128JV QSPI NOR Flash (connected to SPI1)
– Internal Flash: 512KB
– Internal SRAM: 128KB
– USB: USB 2.0 Full Speed via USB-C
– Debug: SWD 10-pin header
– All GPIOs broken out to 2.54mm headers
– Power: USB-C (5V) with onboard 3.3V LDO

USE CASES:
– Data logging to external flash
– OTA firmware update storage
– Asset storage (fonts, images, audio samples)
– Bootloader + application split across internal and external flash

IN THE BOX:
– NVX-F4 Flash board (hand-assembled and tested)
– 2x 20-pin 2.54mm female headers
– Pinout diagram (PDF download link included)
– Quick start card with QSPI Flash wiring diagram

DOCUMENTATION:
Full pinout, schematic, W25Q128 driver, and example firmware at github.com/nvixeon

This board is designed and built in Ghana and ships worldwide via tracked courier.