BSP development
Custom Linux board support packages, device-tree configuration, bootloader adaptation and peripheral enablement for customer hardware.
STM32 engineering
From microcontroller to Linux MPU.
Crossware develops production embedded software across the STM32 portfolio, from deterministic MCU firmware and graphics to complete Linux board support packages on STM32MP application processors.
Application processors
STM32MP series
For connected products that need Linux, rich interfaces and dependable real-time control, Crossware turns STM32MP hardware into a stable, product-ready software platform.
Board bring-up
Early hardware validation across memory, display, touch, networking, storage, cameras and custom interfaces.
Linux platform engineering
Yocto integration, kernel and driver work, secure update strategies and maintainable production images.
4 secboot-to-application target achieved
Case study · Boot-time optimisation
Reducing startup time from platform boot to a usable product.
For an STM32MP-based embedded product, Crossware analysed the complete startup path, from bootloader and kernel initialisation to services and application launch. The system was reduced to the essential production path and tuned at every layer.
The resulting platform reached the application in approximately four seconds, giving the product a responsive power-on experience without compromising the maintainability of its Linux BSP.
Bootloader and kernel tuningDeferred non-critical servicesDriver initialisation profilingApplication launch optimisation
OTAsecure USB firmware updates
Case study · Secure firmware update
Reliable field updates without risking the running product or customer data.
Crossware engineered a USB-based update solution for an STM32MP product using redundant A/B system partitions. New firmware is written to the inactive partition, verified and activated only when the update is ready, leaving the previous system available for controlled recovery.
Customer data remains isolated and intact throughout the update. The design handles interrupted installations, corrupt or incompatible packages, failed first boot and rollback scenarios, while anti-rollback controls prevent an authenticated device from being downgraded to older, vulnerable firmware.
A/B system partition strategyCustomer-data preservationSigned update verificationAnti-rollback protectionPower-loss-safe recoveryCybersecurity hardening
Real-time microcontrollers
STM32 MCU series
Crossware engineers responsive, resource-efficient firmware for STM32 microcontrollers, from compact connected devices to graphics-rich industrial interfaces.
Firmware architecture
Clean application layers, RTOS integration, peripheral drivers and communication stacks designed for predictable real-time behaviour.
Embedded graphics
Optimised display pipelines and user interfaces with Qt for MCUs, LVGL and platform-native graphics technologies.
Performance engineering
Memory, boot time, power and rendering optimisation shaped around the constraints of the final production hardware.
Delivered
Qt for MCUs engineering on STM32
Qt for MCUs ports to L4/F4/F7/H7/N6 series for bare-metal/FreeRTOS
DMA2D integration into the Qt for MCUs hardware acceleration backend, with pixel format conversion and image blending
NeoChrom GPU integration into the Qt for MCUs hardware acceleration backend for transforms, image blending and rects
Optimisations related to framebuffers, caches and external memories
Display integrations for Vsync-based double buffer configurations
Cache coherency handling between CPU/DMA2D and D-Cache for framebuffers
XIP from external XSPI flash, plus external PSRAM memory-map support for assets and buffers
TrustZone / RIF configuration for secure graphics masters (LTDC, DMA2D / GPU2D)
Production-oriented FSBL + trusted-binary flash/boot flow for N6 secure boot
Frequently asked questions
Does Crossware work across the whole STM32 range, or just one class?
Both: from STM32MP Linux application processors (BSP, board bring-up, platform engineering) down to STM32 L4/F4/F7/H7/N6 microcontrollers running Qt for MCUs bare-metal or on FreeRTOS.
How fast can an STM32MP product boot to a usable screen?
In a delivered case study, Crossware tuned an STM32MP-based product's full startup path down to approximately four seconds from power-on to the application.
Can firmware be updated in the field without risking a bricked device?
Yes. Crossware has delivered a USB-based secure update design using redundant A/B partitions, with signed verification, anti-rollback protection and power-loss-safe recovery.
Is GPU acceleration available on STM32 MCUs, or is rendering CPU-bound?
Crossware integrates both DMA2D and the NeoChrom GPU into the Qt for MCUs hardware acceleration backend, covering pixel format conversion, image blending, transforms and rects.
Does the N6 series support secure boot?
Yes. Crossware has delivered a production-oriented FSBL plus trusted-binary flash/boot flow for N6 secure boot, alongside TrustZone/RIF configuration for secure graphics masters.
Building on STM32?
Bring us in for board bring-up, BSP ownership or complete embedded product development.