Pawel Cern Email & Phone Number

Warsaw, Pl

Klaudyn

Apart from regular hardware / software R&D tasks:- Electronic component market analysis- Technical support for subcontractors- Tasks coordination, according to software and electronicsDeveloped electronics / software:- People counting sensor, based on infrared / ToF sensor VL53L5. Autonomically builds ad-hoc Wi-Fi network used to upload results from tens of sensors to given Wi-Fi AP "manager". ESP32-C3 on board.- Low power GPS tracking device. Runs >5 years from two 14500 LiSOCL2 batteries. Integrated with open source TRACCAR server (developed own protocol driver). Quectel EG915 / ESP32-C3 on board.- Door gate for shops (stepper motor, absolute rotary encoder, proximity sensors). Controlled by ESP32-C3- Software development for new version of flagship product - corrected certain known problems related to Allwinner T113-S3 SOC in mainline Linux kernel: corrected order of video overlays, corrected rates of underclocked MMC interfaces, improved clock management code (autodisabling unused PLLs), implemented missing driver for CSI interface.

Warsaw, Masovian District, Poland

Duties: design and development of multimedia advertisement systems.Skills: - Linux kernel driver development. - Linux userspace application development (graphics based on Cairo, networking, cryptography)- Microcontroller firmware development (STM32, STM8, ESP32), linear and FreeRTOS based.- Bash scripting- Design of production diagnostics hardware and end user products (schematic and PCB, "Altium Circuit Maker"). Hardware corrections due to conducted / radiated EMC exceeding limits.- Set up and maintenance of Atlassian Confluence, used mainly for project documentation and BitBucket, GIT based source code repositories

- Embedded systems market analysis (both semiconductors and software).- Solution selection, adequate to product functionality / requirements.- Software development, hardware co-development (see below).Skills:- DSP programming - family of multicore TI Keystone DSPs (C6678) - prepared voice codec coprocessor. Wrote firmware and device drivers / framework libraries for Linux.- Linux / ARM programming - Freescale i.MX6. Prepared complete Linux distribution, including BSP and several customised daemons, for radio relay device, which is transporting control / H.264 video stream. Stayed in touch with customer, to tune functionality according to evolving requirements.- Linux / ARM / FPGA - Xilinx Zynq - used as device model in development phase of military device. Prepared custom FPGA design based on AXI bus technology, wrote accompanying Linux device drivers, userspace software and microblaze firmware.- VOIP - NATO SCIP technology - codevelopment of the standard. Implemented software for prototyped VOIP terminals, supporting MELP/G.729D coded audio as well as MPEG4 video.- Linux / ARM / FPGA - Spartan 6 / microblaze - designed and developed system components, responsible for reliable and time constrained communication between terminals.- STM32 microcontroller programming - designed and developed measurement tools for systems mentioned above.

Development of embedded software for military telecommunication/IT products such as VOIP gateways, secure pen drives, VOIP telephones, software MANET radios and more:- network applications (SNMP daemons)- device drivers (linux loadable kernel modules) - u-boot and platform support for linux kernel (support for custom OMAP3 based board)- modules for asterisk* telephony software- plugins for industry standard "LabView" software- bash, ruby scripting- embedded software (microcontrollers, linear and XILKERNEL based software for Microblaze based FPGA SOC, DSP/BIOS based software for TI DSP)- Opal VOIP platform - audio codec plugins, top level applications* On site (traverse) tests / presentations.* Participation at military trade shows such as "Combined Endeavor", inside and outside Poland

Bsc, Msc, It

MSc project: Thermal printer controller with USB interface BSc project: Serial EEPROM memory programmer with USB interface Received.

Education record