PCB layout and low-level programming for specialized embedded hardware.
Powering innovation through integrated engineering, FR Prototypes delivers expert PCB design, mechanical integration, and embedded systems development. We support the automotive and industrial sectors by handling the full design spectrum—from schematic simulation and digital circuit design to the intelligent programming of MCUs and MPUs.
Embedded programming
Programming controllers of STM32, ESP32 and oneboard computers.
Simulation and prototyping
Circuits simulation and prototyping devices before serial production.
Mechanical design and integration
Mechanical part of developed design including enclosures and integrating electronics into it.
Optimisation of existing design
Upgrade of existing products and optimisation their design, functionality.
We handle the full development lifecycle from PCB layout and analog simulation to assembly microcontroller based devices. Unifying hardware and software engineering, we help to reduce development costs and accelerate your path to a reliable, high-performance launch.
[01]
PCB design and order ready to use boards
We know how to optimize the cost of production and where to order it to get fast manufacturing and shipping time.
[02]
Development of other parts of the product
We have all necessary for the development electrical diagram and 3D design of the product.
[03]
Reverse engineering
We can help with reverse engineering of third party products and reworking its design to avoid patent conflicts.
[04]
Technical support
We provide support for our product and products from third party companies.
One of clients asked us to develop a slave board for synchronized data acquisition from digital and analog inputs boards.
Challenge
The client required a compact board that could synchronously acquire data from IO boards and transfer it to the main controller for further decision-making. The solution also had to implement controller redundancy on the board for fail-safe operation, a communication protocol that withstands noise and is fast enough for rapid data transfer, a compact design with multilayer circuits, and redundancy for power circuits.
Solution
Looking at high demand requirements we hadn’t doubts what controller and protocol should be used in this case. So, as controller for this board we took 3 pcs of STM32H745 that work on the same tasks and ensure the highest redundancy. The data exchange is implemented via CAN (MAX14882) protocol, two channels per MCU.
To balance between layers complexity and compact size it was decided to use 4 layers in the board. The system is battery powered with power management by two power chips (TPS26631PWPR(U1,U4). In case one chip fails the second replaces it without power interrupts.
Impact
The compact board
of aerospace class
Power and control
logic redundancy
Can be easily integrated
into different systems due to standard connection protocol
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