Connectivity / IoT

Project: May 2017 – now (ongoing)

Description

The customer is one of the world’s leading companies and the largest home appliance manufacturer in Europe. Support of the software project team ‘HomeConnect’ in Berlin with the following tasks:

  • Consulting in software development for embedded systems for the control and networking of washers, dryers and washer-dryers
  • Implementation of software architecture and software design
  • Analysis, conception and estimation of new requirements
  • Testing and consultation on the created software

Summary

Project Connectivity / IoT
Duration May 2017 – now (ongoing)
Customer confidential due to nondisclosure agreement
Industry Sector Industrial Manufacturer
Role / Responsibility Concept Design, Software Architecture, Software Design, Software Tests, Static Code Analysis, Issue Analysis
Software / Tools / Methods Enterprise Architect, Eclipse, IAR Workbench, Python, Py.test, PC-lint, Serena Dimensions CM, Subversion, BitBucket (git), Atlassian JIRA, JFrog Artifactory
Hardware Environment ‘Simulation’ on PC

Battery Management System

Project: June 2016 – March 2017 (10 months)

Description

The customer was developing an auxiliary energy storage (lithium ion battery) for FMA support (freewheel engine-off), start/stop operation and emergency support. My main tasks in the project were code reviews (based on checklists and coding rules), static code analysis (MISRA-C:2012 with QAC, Polyspace CodeProver, PC-lint), code quality measurements (HIS metrics with QAC and Polyspace BugFinder), justification of deviations, as well as issue analysis (problem reports on system level).

Summary

Project Battery Management System
Duration June 2016 – March 2017 (10 months)
Customer confidential due to nondisclosure agreement
Industry Sector Automotive
Role / Responsibility Concept Design, Software Design, Unit Tests (C1 Coverage), Code Reviews, Static Code Analysis, Issue Analysis
Software / Tools / Methods IBM Rational DOORS (IBM), STAGES Process Management (methodpark), Redmine Project Management (open source), Enterprise Architect (Sparx), QA-C/MISRA (PRQA), PC-lint (MISRA-C), Polyspace (MathWorks), Tessy (Hitex)
Hardware Environment Freescale MPC5606B (Bolero), ASIC Atic157 (proprietary)

UDS-based Communication Stack for Encoders

Project: August 2015 – May 2016 (10 months)

Description

Development of server-side application layer services according to ISO-14229 as part of a platform software for encoders. The work packet includes the following tasks:

  • Definition of software architecture components
  • Capturing the component requirements (in Polarion)
  • Creating the component and class design (in Enterprise Architect)
  • Implementation of source code modules in C, taking into account coding rules for safety-relevant software
  • Performing static code analysis with PC-lint (MISRA-C:2012)
  • Implementation of white-box tests with GoogleTest
  • Continuous Integration (Jenkins)
  • Documentation of the software modules using Doxgen comments and UML diagrams (activity diagrams, sequence diagrams, state charts)
  • Further development of the software architecture and source code modules of the platform software (persistent data memory, firmware update, HAL for SPI, on-chip flash, CRC-32)
  • HAL: code refactoring (Non-STLibrary)

Summary

Project UDS-based Communication Stack for Encoders
Duration August 2015 – May 2016 (10 months)
Customer confidential due to nondisclosure agreement
Industry Sector Industry / Heavy Duty Encoders
Role / Responsibility Software Design, Implementation, Documentation, Code-Reviews
Software / Tools / Methods Polarion ALM (Polarion Software), Enterprise Architect (Sparx), ARM GCC, SCons, Keil uVision 5, PC-lint (MISRA-C)
Hardware Environment STM32F0 (ARM Cortex-M0)

Inductive Coupler with CAN Interface

Project: June 2015 – July 2015 (2 months)

Description

Planning and creating of the firmware for a CAN repeater (quasi-repeater) as a plug replacement for sensor data acquisition in tunnel construction machines. CAN messages are converted to UART to transmit them via an air gap using a FSK modem. To supply the sensors in the drill head, the coupler provides 500mA of current.

Summary

Project Inductive Coupler with CAN Interface
Duration June 2015 – July 2015 (2 months)
Customer confidential due to nondisclosure agreement
Industry Sector Industrial Communication / Field Bus
Role / Responsibility Software Design, Implementation, Function Tests, Documentation, Order Processing
Software / Tools / Methods Atmel SAM4E Microcontroller, Rigol Oscilloscope, Multimeter, CAN Interface Boards (Peak, Vector, IXXAT)
Hardware Environment Atmel Studio (Version 6.2), Enterprise Architect (Sparx)

MacCAN – OS X Library for PCAN-USB Interfaces and more

Project: June 2012 – now (ongoing)

Description

The PCBUSB library realizes a ‘PCAN-USB Driver for OS X’ using AppleĀ“s IOUSBKit. It supports up to 8 PCAN-USB and PCAN-USB FD devices from PEAK-System Technik, Darmstadt. The library offers an easy to use API to read received CAN messages from a 64K message queue and to transmit CAN messages. The PCAN-USB FD device can be operated in CAN Classic and CAN FD mode. Standard CAN frames (11-bit identifier) as well as extended CAN frames (29-bit identifier) are supported.
The library comes with an Objective-C wrapper and a demo application: MacCAN Monitor App.

Summary

Project MacCAN – OS X Library for PCAN-USB Interfaces and more
Duration June 2012 – now (ongoing)
Customer Own development (www.mac-can.com)
Industry Sector Industrial Communication / Field Bus
Role / Responsibility System Specifications, Software Architecture, Software Design, Implementation, Function Tests, Documentation
Software / Tools / Methods Enterprise Architect (Sparx), Apple LLVM (clang, x86_64), CUnit Test Framework, Doxygen, JIRA
Hardware Environment PCAN-USB Adapter (PEAK), PCAN-USB FD Adapter (PEAK)

Active Steering Wheel

Project: January 2012 – May 2015 (41 months)

Description

Active steering project for an American automobile manufacturer. Support of the project team in Berlin with the following tasks:

  • Implementation of the software design (modules)
  • Documentation of the modules and interfaces
  • Integration of software components
  • Design and execution of Unit Tests
  • Code Reviews

Summary

Project Active Steering Wheel
Duration January 2012 – May 2015 (41 months)
Customer confidential due to nondisclosure agreement
Industry Sector Automotive
Role / Responsibility Software Design, Implementation, Software Integration, Unit Tests, Code Reviews, Issue Analysis
Software / Tools / Methods Enterprise Architect (Sparx), GHS C-Compiler (Green Hills), PC-lint (MISRA-C 2004 rules), CANoe (Vector), DET (Ford), DOORS (IBM), FuSi (IEC 26262-6), Telcon / Webex / Workshop
Hardware Environment Freescale MPC5643 Dual-Core Microcontroller, Lauterbach Trace32 Debugger, CAN Interface Board (Vector)

Hardware Oriented Software Development

Project: December 2010 – December 2011 (13 months)

Description

Support of several development teams at the client’s site. My tasks included:

  • Development of hardware oriented software applications
  • Creation of hardware oriented drivers
  • Implementation of real-time operating systems on embedded platforms
  • Customization of BIOS and driver software
  • Project support from requirement engineering to validation

Work Batch 1: Analogue CAN Transmitter for Force Feedback Sidestick Control

The transmitter is used to transmit analogue and digital signals from a redundant sidestick control via the CAN bus. Through two physically connected sidesticks in the cockpit, the steering system, as well as the gas and brake systems, are controlled. From these systems, current angle data is transmitted back to the systems in the cockpit.

Task: Implementation of the transmitter software (CAN bus).

Work Batch 2: End-Of-Line Test Software for a Control Panel for Floor-borne Vehicles

The vehicles are optionally equipped with a Truck Data Unit (TDU). At the beginning of vehicle use, the driver identifies himself by means of an identification assigned to him (optionally via a keyboard with a PIN number or by means of a card reader with RFID identification) and thus indicates the use of the vehicle. When leaving the vehicle, the driver logs off.

Task: Implementation of the test software on the target for end-of-line testing of analog and digital I/O modules, memory devices (F-RAM, NAND-Flash, Data-Flash), LEDs, CAN-communication, matrix keyboard, wake-up function, card reader (RFID), Bluetooth module.

Work Batch 3: Compressed Download via CANopen

Control panel for blacktop paver with display and CAN interface. A CANopen bootloader handles software updates.

Task: Integration of the zlib inflate algorithm into existing boot loader.

Work Batch 4: SPI Bootloader for HVAC Front Panel

Front panel for climate control intended for a DIN radio slot. Control and display unit with integrated color display, illuminated buttons, and control dials. Communication with the main circuit board takes place via an SPI data bus system and controls all button and encoder inputs, as well as visualization of the display.

Tasks:
a.) Implementation of the bootloader (SPI slave).
b.) Implementation of test procedures.

Summary

Project Hardware Oriented Software Development
Duration December 2010 – December 2011 (13 months)
Customer confidential due to nondisclosure agreement
Industry Sector Automotive
Role / Responsibility System Specifications, Software Architecture, Software Design, Implementation, Function Tests, Documentation
Software / Tools / Methods Keil C166 C Compiler (uVision3), Keil ARM C Compiler (uVision4) , Microsoft Visual C++ 2008 , Enterprise Architect (Sparx) , PC-lint (MISRA-C 2004 rules) , Understand (SciTools) , CAN Analyser (IXXAT) , Doxygen, Python
Hardware Environment Infineon XC164CS Microcontroller, Infineon XC2368B Microcontroller, NXP LPC2478 (ARM7/TDMI-S core), Keil U-Link On-chip Debugger, CAN Interface Boards (IXXAT), SPI-to-USB Adapter (Elite)

Primary Flight Control System

Project: July 2009 – September 2010 (15 months)

Description

Certification of a Fly-by-Wire flight control:

  • Software development according to V-Modell and RTCA DO-178B for the Primary Flight Control System of the Superjet 100
  • Performing software tests according to RTCA DO-178B
  • Creation the required documentation according to RTCA DO-178B

Summary

Project Primary Flight Control System
Duration July 2009 – September 2010 (15 months)
Customer confidential due to nondisclosure agreement
Industry Sector Aeronautics
Role / Responsibility Design und Code Reviews, Software Improvement, Software Tests, Documentation
Software / Tools / Methods Ameos (Aonix) UML Modeling Tool, CodeWarior (Metrowerks) C Compiler for Power Architecture Processors, QA-C/MISRA (QA Systems) Static Code Analysis, PolySpace (MathWorks) MISRA-C Code Checker, CTE (DaimlerChrysler AG) Classification Tree Editor, ClearCase / ClearQuest (Rational) Unified Change Management, Reqtify (geensys) Requirements Management / Traceability Tool, SmarTeam (Dassault Systemes) Product Data Management / Product Lifecycle Management, DO-178B (RTCA) Software Considerations in Airborne System and Equipment Certification
Hardware Environment Freescale MPC5554 32-bit Microcontroller

Emergency Drive for a Blood Pump

Project: February 2009 – March 2009 (2 months)

Description

Firmware expansion for compact drives to include client-specific functions. The drive is used to complete the emergency concept in a mobile blood pump. For this purpose, the function of the digital control interface was adapted according to customer-specific specifications.

Summary

Project Emergency Drive for a Blood Pump
Duration February 2009 – March 2009 (2 months)
Customer Schneider Electric Motion Deutschland GmbH & Co. KG
Industry Sector HW and SW Development Mechatronics
Role / Responsibility Software Design, Implementation, Function Tests, Documentation, Order Processing
Software / Tools / Methods Keil C166 C Compiler (uVision3), CAN/CANopen Tools (IXXAT)
Hardware Environment Infineon XC164 Microcontroller, Keil U-Link On-chip Debugger, USB Oscilloscope, Multimeter

Pilger Rolling / Looping

Project: January 2009 – February 2009 (2 months)

Description

Firmware expansion for compact drives to include client-specific functions. Based on pre-existing driver firmware, the backlash is compensated by the software method ‘Pilger Rolling/Looping’ in order to achieve higher positioning precision. Using this method, all positions are addressed only from one direction. This means that the target positon is always addressed from one direction while, in the opposing direction, the target position will be skipped by a value larger than the backlash and then addressed afterwards.

Summary

Project Pilger Rolling/Looping
Duration January 2009 – February 2009 (2 months)
Customer Schneider Electric Motion Deutschland GmbH & Co. KG
Industry Sector HW and SW Development Mechatronics
Role / Responsibility Technical Specifications, Software Design, Implementation, Function Tests, Documentation, Order Processing
Software / Tools / Methods Keil C166 C Compiler (uVision3), CAN/CANopen Tools (IXXAT), IclA Commissioning and Control Tool
Hardware Environment Infineon XC164 Microcontroller, Keil U-Link On-chip Debugger, CAN Interface Boards (IXXAT)