Industrial Ethernet Switch for Dewesoft on Microchip TSN Silicon 

Turnkey hardware, thermal design, and management software for a data acquisition equipment maker.

Challenge: Dewesoft, a Slovenian manufacturer of data acquisition systems, needed a custom industrial Ethernet switch to slot into its product line: high port density, deterministic behavior for time-synchronized traffic, and industrial-grade tolerances (–20 °C to +60 °C, MIL-STD shock and vibration). An earlier vendor's platform had proven difficult to support long-term. 

Solution: Promwad delivered the switch end-to-end on a single PCB. The core is a Microchip VSC7546TSN switch IC with an integrated 1 GHz dual-core ARM Cortex-A53 running Microchip IStaX, driving 2×10GbE SFP and 16×2.5GbE ports (12 with PPoE), backed by DDR4, eMMC, and NOR flash. Thermal modeling drove a six-fan enclosure with unified PWM control; management runs over web (JSON), CLI (Telnet/SSH), and SNMP. 

Results: Dewesoft shipped a switch that fits into its data acquisition product line. The turnkey project has since grown into a dedicated team, with Promwad's C++ and hardware engineers embedded in its quarterly release cycles. 

Full Project Story: Industrial Network Switch for Data Acquisition Systems

_{Block diagram of the switch}

Automated Malware Analysis for a European Telecom on REMnux 

Open-source triage pipeline: signature matching, file-type routing, and escalation to public sandboxes.

Challenge: A European telecom company needed to upgrade its malware detection: automate the triage pipeline to free up security engineers, and validate performance against public sandboxes. Manual review was consuming around 20 engineer-hours per week. 

Solution: Promwad built the platform around a REMnux sandbox in an Ubuntu VM, a YARA-driven signature database, and an orchestration API. Incoming files are checked against known signatures; unmatched samples are classified by Detect-It-Easy, then routed to Manalyze for Windows executables or ViperMonkey for Office documents. Anything still unresolved is escalated by Malwoverview to public sandboxes such as VirusTotal and Hybrid Analysis. 

Results: Detection accuracy exceeded 95%, with fewer false positives than traditional antivirus. Manual review dropped from 20 to 4 engineer-hours per week (5×), and the client projected $1.5M per year in incident response and recovery savings. 

Full Project Story: Malware Analysis with Automatic File Scanning

_{Block diagram of our automated solution based on open-source malware analysis tools}

Closed-Loop Antenna Correction on AMD Artix 7 FPGA 

Signal-correction pipeline for phased-array satellite antennas on moving vehicles.

Challenge: A manufacturer of mobile satellite antennas needed to improve real-time tracking on vehicle-mounted phased-array systems. Its existing correction pipeline ran on a CPU and took over 15 µs from command to antenna output — too slow to keep the link stable on a moving vehicle. 

Solution: Promwad moved signal analysis and correction factor generation from CPU to FPGA, on an AMD Artix 7. In the closed loop, the PC evaluates the input and forwards four parameters over SPI; the FPGA recalculates phase, amplitude, and their corrections in fixed-point and returns updated values to the RF stage within a 15-µs budget. 

Results: The correction loop closes in 12 µs — 3 µs under target. The client can now remotely tune phased-array antennas on moving vehicles and hold steadier satellite links. 

Full Project Story: Closed-Loop Antenna System for Improved Satellite Signal Reception

_{Schematic diagram of the signal reception system and correction factor formation}