Uploaded July 2026 | Updated September 2026, 2 weeks ago
Build an *STM32 USB Mass Storage device* that allows a W25Q NOR Flash memory connected to your STM32 to appear as a removable USB drive on a PC.
In this tutorial, we configure the STM32 as a *USB Mass Storage Class (MSC)* device using STM32CubeMX and STM32CubeIDE. The W25Q NOR Flash is connected through SPI, while the USB peripheral exposes the external Flash memory to the computer as a standard USB storage device.
We implement the USB MSC storage callbacks to read from and write to the W25Q Flash, connect the external memory with the USB storage interface, and test the device from the PC. This allows the STM32 to act as a bridge between the USB host and external NOR Flash, providing direct file storage access through USB.
#STM32 #USB #USBMSC #EmbeddedSystems
📁 *Download Project Files & Full Article:* controllerstech.com/stm32-usb-mass-storage-class-w25q-nor-flash
📁 *STM32 USB Series:* controllerstech.com/stm32-hal/peripherals/usb-tutorials
📁 *ControllersTech Home:* controllerstech.com
### ▶︎ Related Videos
1️⃣ *STM32 USB Mass Storage with SD Card:* youtu.be/-RoX4oJXDTg
2️⃣ *STM32 USB Composite Device (CDC+HID):* youtu.be/0lwWwdq1zxk
3️⃣ *STM32 USB Tutorials Playlist:* youtube.com/playlist?list=PLfIJKC1ud8gj5iYMN53m4H-Gw3tv9FBxO
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Build an *STM32 USB Mass Storage device* that allows a W25Q NOR Flash memory connected to your STM32 to appear as a removable USB drive on a PC.
In this tutorial, we configure the STM32 as a *USB Mass Storage Class (MSC)* device using STM32CubeMX and STM32CubeIDE. The W25Q NOR Flash is connected through SPI, while the USB peripheral exposes the external Flash memory to the computer as a standard USB storage device.
We implement the USB MSC storage callbacks to read from and write to the W25Q Flash, connect the external memory with the USB storage interface, and test the device from the PC. This allows the STM32 to act as a bridge between the USB host and external NOR Flash, providing direct file storage access through USB.
#STM32 #USB #USBMSC #EmbeddedSystems
📁 *Download Project Files & Full Article:* controllerstech.com/stm32-usb-mass-storage-class-w25q-nor-flash
📁 *STM32 USB Series:* controllerstech.com/stm32-hal/peripherals/usb-tutorials
📁 *ControllersTech Home:* controllerstech.com
### ▶︎ Related Videos
1️⃣ *STM32 USB Mass Storage with SD Card:* youtu.be/-RoX4oJXDTg
2️⃣ *STM32 USB Composite Device (CDC+HID):* youtu.be/0lwWwdq1zxk
3️⃣ *STM32 USB Tutorials Playlist:* youtube.com/playlist?list=PLfIJKC1ud8gj5iYMN53m4H-Gw3tv9FBxO
🔔 *Subscribe for more STM32 and embedded systems tutorials!*
👍 Like and share if this tutorial helped you.
******** SUPPORT US ********
🎁 Donate on Paypal: paypal.me/controllertech
🏆 Become a Member on Patreon: patreon.com/controllerstech/join
🎓 Join Youtube Membership: youtube.com/channel/UCkdqtSMnhYuMsJkyHOxiPZQ/join
🌐 *Connect:*
Facebook: facebook.com/controllerstech
Telegram: https://t.me/controllerstechdiscuss
Instagram: instagram.com/controllerstech
Website: controllerstech.com
