Mathieu Barroy
Embedded SW expert with HW skills
47 years old
Driving License
QUINT-FONSEGRIVES (31130) France
Professional Status
Freelancer
Open to opportunities
About Me
★POTENTIALLY AVAILABLE the 1st of January 2025
★AREA: Toulouse and around
★★★ PRESENTATION ★★★
Expert by my multiple experiences and by passion. For critical and complex systems, requiring embedded software with electronic skills, I am the software expert you need.
I worked inside Start-up: autonomous, effective and multi-competent
I also worked in multinational companies: teamwork (reporting, mutual aid, brainstorming, documentations, respect of processes)
★AREA: Toulouse and around
★★★ PRESENTATION ★★★
Expert by my multiple experiences and by passion. For critical and complex systems, requiring embedded software with electronic skills, I am the software expert you need.
- Ease of adaptation
- Pro-activ, willingness, Accomodating, excellent relationship
- Accessible / cooperative / knowledge sharing / knowledge sharing
- Conscientious, curious and determined
I worked inside Start-up: autonomous, effective and multi-competent
I also worked in multinational companies: teamwork (reporting, mutual aid, brainstorming, documentations, respect of processes)
"C" Real Time embedded SW Engineer
NXP
June 2022
to May 2024
- Environment : ISO26262 & ASIL D, Matlab Simulink + Embedded Coder
- SW prototyping (drivers and middleware) on 32bits PowerPC and S32K396 (4 cores ARM CORTEX-M7) MCUs to validate several safety concepts about Long Term Innovations in the NXP's team FuSa (Functionnal Safety)
- Code generation from Matlab's Simulink's models with Embedded Coder
System engineer
CONTINENTAL (PSS/CHASSIS)
February 2021
to May 2022
- Environnement : ISO26262 & ASIL D, Matlab Simulink
- Create and update requirements (DOORS)
- System tests with CANape
- Raise of safety issues + analysises and treatements
"C" Real Time embedded SW Engineer
HELLA Engineering France
March 2020
to February 2021
Freelancer
Toulouse (31)
France
- Environment : ISO26262 & ASIL D, AUTOSAR
- Study and mock-up on mechanisms to temporally protect the SW:
- AUTOSAR WatchdogManager (program flow, Deadline, Alive monitoring)
- AUTOSAR OS time protection (Execution Budget, Lock Budget, inter-arrival time)
- AUTOSAR WatchdogManager (program flow, Deadline, Alive monitoring)
- Gliwa T1 Cont implementation to monitor tasks Response Time.
- Configuration of these AUTOSAR components FEE & NVM via softwares' configurators Tresos (Elektrobit) and Davinci (Vector)
"C" Real Time embedded SW Engineer
ACTIA
September 2019
to March 2020
Freelancer
Toulouse (31)
France
- Projet MASTER68 - ECU providing genirc I/O + integrated driver SW layer.
- CAN bus debugging
- Comparison about Unitary Test automation SW
- Benchmark multi OS (Tested with AUTOSAR RTA-OS)
"Matlab simulink" & "C" Real Time embedded SW Engineer
HELLA Engineering France
March 2017
to August 2019
Freelancer
Toulouse (31)
France
- Environment : ISO26262 & ASIL D, AUTOSAR, Matlab Simulink
- Develop a "Matlab Simulink + Target Link" model about a Complex Driver Devices (AUTOSAR) for a generic SW analyser about Motor Position Sensor signals (Resolver, AMR, GMR, TMR)
- System SW support for new features about a new "EPS" (Electric Power Steering) ASIL-D with a "10 FITs" architecture.
- Developpement of new SW modules use on several projects:
- A generic SENT driver
- An upper layer for different "SENT" Torque sensors.
- A generic SENT driver
- FMEA support about these SW modules
"Matlab Simulink" Real Time embedded SW Engineer
Continental (CES)
May 2016
to February 2017
Freelancer
Toulouse (31)
France
- Transformation of an applicativ SW Emergency Brake Assist described by Simulink schematics to a "C" code.
- From custommer's models : Automatisation of the configurations and the modifications of these models by scripts to generate a usable "C" source code:
- configuration of the "Configuration Parameters"
- modeling the interfaces functions of the generated source code
- modeling the source code to split it in functions for unitary tests objectiv
- Workspace modification (Simulink.Parameter) to import data type outside from the generated source code...
- Define Excel files in Read/Write for automatic configuration (automatic creation of Simulink.NumericType and Bus)
- configuration of the "Configuration Parameters"
"C++" Real Time Embedded SW Engineer
CIRTEM
November 2015
to April 2016
Freelancer
Sainte Foy d'Aigrefeuille (31)
France
- Adaptation of a SW "converter of energy" (inverter/switcher) to a new product (Solar, Enedis, Battery)
System Engineer
SIGFOX
October 2015
Freelancer
Labège IOT VALLEY (31)
France
- Writing/design systems requirements to help during a working overload
"C" SW Engineer on Linux
Nexter Electronics
August 2015
to September 2015
Freelancer
Toulouse (31)
France
- Add feature on two Linux SW communicating themself by socket + Tests by simulation
"C" embedded architectect and senior developer Engineer
HELLA Engineering France
May 2014
to August 2015
Freelancer
Toulouse (31)
France
- Environment : ISO26262 & ASIL D, AUTOSAR
- Automotiv EPS (Electric Power Steering)
- Development of a SW to test HW features on a µc 32bits RENESAS:
- CPU's HW controllers: TSG3x, TPBA, SPI, PIC, DAC, RS232
- Peripherals : PMIC (Power Management Integrated Circuit), GDU (Gate Driver Unit)...
- CPU's HW controllers: TSG3x, TPBA, SPI, PIC, DAC, RS232
- Prototyping, Architecture, Design and development of the "Motor Position Sensor" SW module (techno: Resolver ; AMR ; GMR). Dynamical calibration and normalisation "Min/Max"
"C" Embedded Architect & Developer + Linux C++ and scripts BASH developer
MOBIRIDER
May 2012
to January 2014
Freelancer
Labège IOT-VALLEY (31)
France
- IdBox "Mobi One" Project (universal reader to identify GSM)
- Whole development of the embedded SW:
- Control of µc ATMEL + Lib Atmel Software Framework
- Driver HEL GSM multi-channels Rx/Tx (uplink/downlink)
- SW driver of RF Transceiver...
- USB drivers integration
- HW debugging of the PCB and tests with scope and logical analyser
- Control of µc ATMEL + Lib Atmel Software Framework
"C" "C#" "asm" SW senior designer and HW designer
SATSYS
November 2006
to February 2012
Full-time
Pechebusque (31)
France
- Numerous embedded projects with MODEMs, GNSS (GPS) and accelerometers: AlphaSC, SierraSC, Lima, Docking Telephony...
- Customer support (several business travels in Ankarra (Turkey))
- Resources management with MS-Project
- HW designer (Search of IC, tests, CAO, HW debugging)
- C# developer with Visual C# to configure the embedded product with a computer
- Use of Linux on Gumstix embedded modules
- Whole development in "asm" of the "Docking Telephony" product
(current management for battery charger) - Architecture and developments of several whole embedded SW in C on µc and DSP :
- Control of µc MICROCHIP (PIC12, PIC24, DSPIC33)
- Multi-MODEMs management (AT Commands) and GPS (NMEA 0183)
- Integration and configuration inside a DSP of several libraries about Audio signals treatments
- Robust and evolutive communications protocols between the µc, the DSP and the computer.
- Digital audio buses (CODECs) by DMA, TIP & RING...
- Buses: SPI, I2C, RS232
- Others drivers: RTC, EEPROM, digital potentiometers...
- Control of µc MICROCHIP (PIC12, PIC24, DSPIC33)
"C++" SW Engineer
AKKA
October 2006
Consultant
Labège (31)
France
- Development of a C++ class to manage the emission of mails for a proprietary ERP (internal enterprise management tools)
PSA and BOSCH resident Engineer
CONTINENTAL Germany (Chassis & Safety)
October 2005
to September 2006
Consultant
Regensburg
Germany
- Enterprise SIEMENS VDO, bought by CONTINENTAL
- Customer support about "Electrical Parking Brake" for "Citroën C4 Picasso" vehicles
- Business travels on various locations :
- Regensburg & Würzburg (SiemensVDO Germany),
- Vigo (PSA factory in Spain),
- Belchamp (PSA vehicles tests location, near from Sochaux)
- Drancy (Bosh location, near from Paris)
- Regensburg & Würzburg (SiemensVDO Germany),
"C" embedded Reviewer/tested
CONTINENTAL (Chassis & Safety)
April 2005
to September 2005
Consultant
Toulouse (31)
France
- Automotive active suspensions DIESE and DRAD
- Creation and tests executions integration/validation/endurance in temperature
- Review to remove all compilation and links editor warnings
- Statical tests of source code (MISRA) with SaferC and PC-Lint
- Management of the memory mapping (links editor configuration)
"C" Tester/Auditor on SW modules on shield
CONTINENTAL (Body & Security)
June 2004
to March 2005
Consultant
Toulouse (31)
France
- SW reviewer of the CAN driver layer (+ generic presentation layer):
- Updates of design documentation + formalism for traceability between requirements/design/tests
- Code review to increase efficiency, detect and remove of faults
- Addition of features
- Checks MISRA with PC-Lint and CodeCheck
- Creation of tests plans
- Automation of unitary tests by instrumentation
- Exhaustive integration tests (tests of all calls combinations to this driver)
- Updates of design documentation + formalism for traceability between requirements/design/tests
"C" Real Time Embedded SW Engineer
Delphi Mechatronic Systems
April 2003
to May 2004
Consultant
Strasbourg (67)
France
- V development cycle: Specification a SW architecture part, design, tests plans & results, reviews
- Generic developments on OSEK/VDX BCC1 preemptiv real time kernel context for 7 ECU for "Kia Carnival" vehicles
- Development of VBA Excel macros to auto-generate SW module (EEPROM mapping, quick access macros...)
- Configuration of compilations option and of links editor
- Configuration of QAC to test MISRA rules
- SW integration (configurations and tests with CANoe and Traminator) of SW modules developed by MECEL (Delphi in Sweden) : CAN Bus, CAN bootloader, KWP2000 protocol
"C" Real Time kernel AND generic SW modules auditor
Valeo Electronical Expertise Center
October 2002
to January 2003
Consultant
Paris
France
- "C" auditor on generic SW modules (SW module on shield for all VALEO branches):
- audit on an OSEK/VDX preemptiv real time core
- audit on the multi-bus LIN SW module manager
- audit on an OSEK/VDX preemptiv real time core
- Optimisations about robustness, modularity, portability, CPU load efficiency, memory consumption efficiency: code review + optimisation reviews + tests & efficiency measurements
For example: on the kernel, without feature reduction, efficiency gain = 43% RAM, 36% ROM, 63% CPU load - Static tests on source code via QAC (MISRA), GetTime, GetStack
- Unitary tests via RTRT (Rational Test Real Time)
- Integrity tests via the Visual C++ console
"C" Real Time Embedded SW Engineer
Delphi Texton
May 2002
to September 2002
Consultant
Paris
France
- Truck immobilizer for Volvo Global Truck and Peugeot Citroën Moteurs
"OCODE" SW Engineer
SAGEM
March 2002
to April 2002
Consultant
Osny (95)
France
- Illustration application (for TPS) about a "Personal Virtual Recorder" 's features.
"C" Real Time Embedded SW Engineer
Valeo Security Systems
March 2001
to February 2002
Consultant
Créteil (94)
France
- Immobilizer by transponder for "Toyota Avensis" vehicles
- Robust development of the whole drivers layer (TIRIS transponder, HEL of the motor control...).
- Various optimisations (as the real time sequencer)
- Exhaustive Unitary and endurance tests (by instrumentation & scope uses)
Specialisation Electronic "Signals - Images" and "Embedded Systems"
Configuration, compilation, downloading, boot, and execution of an embedded Linux Kernel
Skills
ENGLISH
- Read / Written / spoken = good technical level
- 2006: Work for SiemensVDO Germany
- 2010: Satsys (trips in Turkey)
- Lot of conf calls with India, Germany, Roumania...
TECHNICAL ENVIRONNEMENTS
- Startup, small and medium-sized enterprises, large companies
- Work in total autonomy or in team (very good relationship with SW / HW / SYSTEMS/ Mecha teams)
- Automotive (AUTOSAR, MISRA, ASIL-D, ISO26262)
- Telecommunications (MODEM, GPS)
- Defense
- Open to other environments
22 years of experiments in embedded systems
-
Control of systems and quality constraints
Advanced
-
Source Code Audition (maintainability, reliability, efficiency, re-usability...)
Advanced
-
Analysis of problems in complex systems (multi - HW and SW): instrumentation of the code, the oscilloscope, the analyzer logic, weld CMS...
Advanced
-
Automatic code generation
Good
-
Algorithms: data organisation, sort out, research, compression, encryption
Advanced
-
Control multiplicity of the executions flows (preemptivity & related prb)
- reactivity, multi-priority, deadlocks
- dynamical share of HW & SW ressources
- Preemptiv kernel (development and audition)
Advanced - reactivity, multi-priority, deadlocks
EMBEDDED SOFTWARE DEVELOPPEMENTS
-
C
Advanced
-
Defensive programming
Advanced
-
Developement on any µc (8, 16, 32bits) with one or several CPU cores
Renesas, Microchip, Atmel, Motorola, Mitsubishi, Aurix TC38...Advanced
-
Matlab Simulink: Scripts
Good
-
Matlab Simulink + Embedded Coder
Good
-
Matlab Simulink + Target Link (dSPACE)
Good
-
C++
Good
-
Assembly
Intermediate
-
Philosophy "Directed Programming Object" in C
- Modular architectures and independant configuration (AUTOSAR)
- Data encapsulation
- Minimisation of interfaces and inter-dependancy
Advanced - Modular architectures and independant configuration (AUTOSAR)
-
Directed Programming Object in C++
- Operator and functions overload
- Canonical class
- Template classe/functions/types
- static/const/mutable data members
- static/const functions
- Multiple inheritance
- friend functions
- Polymorphism (virtual functions)
Intermediate - Operator and functions overload
-
Static tests of the source code (review of code, QAC, PC-Lint...)
Good
-
Automatisation of Unitary Tests on targets by source code instrumentation or by RTRT
Good
-
Integration & validation tests with Visual C++ console, CANape, CANalyser, CANOE
Good
-
Numerous drivers
Advanced
LIST OF DRIVERS (not exhaustive)
- Any CPU HW peripherals : DMA, DAC, ADC, PLL & clock switch, Watchdog, Timer, PWM, InputCapture...
- Motor Position Sensor (Resolver, AMR, GMR, TMR)
- AT commands (MODEMs GSM, Thuraya, Iridium)
- GNNS: Frames GPS (NMEA 0183)
- RF tranceiver for GSM
- Buses : SPI, I2C, RS232, LIN, CAN
- Audio : CODEC (SI3000...), bus PCM...
- Other peripherals: Transpondeur, Accelerometer, AG1170 (Tip&Ring), EEPROM, RTC, LCD, Digital Potentiometer...
AUTOSAR
- Davinci & Tresos
- OS + OSEK OS
- NVM / FEE
WIN/LINUX DEVELOPPEMENTS
- MOTIVATED to increase my skills
-
C++
Good
-
C#
Good
-
Scripts VBA (Excel)
Good
-
script bash
Notions
-
Scripts Dos
Notions
-
Scripts Python
Notions
-
VisualStudio, QT, LabWindows, LabView...
Intermediate
-
Embedded Linux (Linaro MiniAnd MK802, Ubuntu, Gumstic
Intermediate
ELECTRONICS
-
Design: Search of IC + schematic edition
Notions
-
Knowledge about µc, DSP, CPLD, FPGA hardware architectures
Good
-
HW developpemnt : VHDL, schematic
Notions
-
Complex architectures
- Concurrent/sequential treatments and sampling of data flow
- Safety concept : Redundancy treatments, Auto-control management between CPU...
Advanced - Concurrent/sequential treatments and sampling of data flow
PROJECT MANAGEMENT
-
V developpement cycle, continuous improvement, agile
Good
-
Configuration management: GIT, MKS...
Good
-
Resources management with MS-Project
Intermediate
-
Custommer relationship
Intermediate
- Mastering Algorithms with C 1999 - O'Reilly
- Compilers, 2002, Dunod
- Linux - Initiation and utilisation 2004 - Dunod
- Program in language C++ 2011 - Eyrolles
