Electronics and embedded software / Linux

  • Industry / IoT
  • Development
  • Electronics
  • Validation / Testing
  • Electronics
  • Embedded systems
  • Test, validation and IVVQ

In a context of redesigning a range of technical management products for industrial and tertiary buildings,

Mediane  Systeme has taken over the HVAC (Heating, Ventilation and Air Conditioning) management module, which consists of two electronic boards.

We were involved from the preliminary feasibility phase onwards, both in terms of hardware and embedded software, and then in the design, development and industrialisation of a specific CPU board based on a SAMA5, FLASH NAND and DDR3L. We also carried out the evolutions on the basic board allowing the integration of the new CPU board and the 2 Ethernet links.

After the development and testing of the LINUX low layers adapted to the CPU board and the base board, we carried out the integration tests and then accompanied the customer on the CE certification of the product (mainly on the EMC and electrical safety aspects).

The project was carried out taking into account multiple constraints including integration into the existing housing with minor rework, production costs, testability and compliance with EN50491-3/-5 and EN60730-1/-2-11.

Technologies: SAMA5D27, Cortex A5, DDR3L, FLASH NAND ONFI, Ethernet RSTP KSZ8563, Ethernet Bypass, UBOOT, YOCTO, BSP LINUX, USB2.0


As a leading engineering and consulting company, we have been supporting our clients, both large accounts and SMEs, since 1989.
With a close presence in France and abroad, we enable them to study, design or develop their products.

Mediane  Systeme, expertise on a human scale.

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54 route de Sartrouville
78230 LE PECQ

+33 (0) 130159500