USN-1.1 Development of USN Embedded Software based on Model-Driven Approach Lim, Dong-Jin Hanyang University Feb. 14, 2008

USN-1.2 V-Development Process

USN-1.3 Model-Based / Model-Driven Design  Model?

USN-1.4

USN-1.5 UML 2.0 Diagrams Communication Diagrams Sequence Diagrams Interaction Diagrams Class Diagrams Deployment Diagrams Component Diagrams Object Diagrams Structural Diagrams State Machine Diagrams Timing Diagrams Activity Diagrams Behavioral Diagrams Use Case Diagrams Package Diagrams Structure Diagrams Interaction Diagrams

USN-1.6 Use Case Diagram This diagram shows what the system does and who uses it.

USN-1.7 Sequence Diagram Sequence Diagrams show how instances communicate over time.

USN-1.8 Class Diagram Class diagrams show classes and relations between them.

USN-1.9 Object Diagram Object Diagrams show instances of classes and show which ones are linked to others at run time.

USN-1.10 State Machine Diagram State machines are used when we need to wait until something happens before going to a different state.

USN-1.11 Activity Diagram Activity diagrams are used to describe behavior for operations, classes or use cases. As soon as one activity finishes the next one starts.

USN-1.12 Timing Diagram A Timing Diagram shows the timing between objects.

USN-1.13  The Rhapsody framework is a collection of base classes that are used by the code generated from a user’s model.  There are two main parts to this framework:  The Object eXecution Framework which is the part of the framework that will always be linked into the final generated code  The Animation and Tracing Framework, which is only used when animating or tracing and as such is less important to understand than the OXF. The Framework CPU External Code RTOS OXF Framework Rhapsody Generated Code

USN-1.14 The Object eXecution Framework  There are three main parts to the Object eXecution framework: 1. Event Driven Framework 2. Container Classes 3. Operating System Adapter Layer Event Driven Framework Operating System Adapter Layer Container Classes CPU External Code RTOS OXF Framework Rhapsody Generated Code

USN-1.15 Interrupt Driven Framework  By using the Interrupt Driven Framework (IDF), it is possible to run Rhapsody in C without the need for an Operating System  The IDF can replace the OXF and RTOS  It generates smaller code. For example a simple stopwatch example takes 20K on an ARM7 (framework + libraries + generated code)  Requires just a periodic interrupt to be setup (so that timeouts can be used in Statecharts) CPU External Code IDF Framework Rhapsody Generated Code

USN-1.16 IDF model  Everything in this model is independent of the actual compiler and cpu used.  Everything that depends on the cpu and compiler is included in a separate “adapter” model

USN-1.17 IDF model

USN-1.18 USN Platforms  Crossbow Micaz  Atmega128L(128K Flash, 4K Ram)+Chipcon2420  S/W: UC Berkeley TinyOS 2.0  MoteView, MoteWorks

USN-1.19 USN Platforms  TI Chipcon CC2420DB  ATmega128L+Chipcon2420  S/W: WinAVR, RF lib (source)  ZigBee Stack: Z-Stack(IAR), TI MAC

USN-1.20 USN Platforms  TI Chipcon CC2420DB  MSP430(16bit)+Chipcon2420  ZigBee Stack: Z-Stack(IAR), TI MAC

USN-1.21 USN Platforms  TI Chipcon CC2430DK  SoC: 8051 core + CC K Ram+32K/64K/128K Flash  ZigBee Stack: Z-Stack(IAR), TI MAC

USN-1.22 USN Platforms  Radiopulse MG2400  MG2400(8051+Zigbee Tranceiver+4K Ram)+64K Flash  S/W: Keil uVison2, ZigBee Full Stack  HW(128K flash) & SW upgrade

USN-1.23 USN Platforms  Atmel AT86RF230  ATmega1281V(128K Flash, 8K RAM, 3.3V)+AT86RF230  ZigBee Stack: MeshNetics(AVR-GCC), MAC(IAR, AVR- GCC)

USN-1.24 USN Platforms  Silicon Labs  8051(128K flash)+CC2420  ZigBee Stack: Keil 8051

USN-1.25 USN Platforms  RENESAS  M16C(16bit)+CC2420  ZigBee Stack: HEW  3 rd Party Compiler: IAR

USN-1.26 USN Platforms  K-mote(MSP430F1611+CC2420) : Crossbow TelosB compatible  ATmega128L+CC2420

USN-1.27 Development of Framework  ATmega128L+CC2420, Z-Stack/MAC lib, IAR compiler  ATmega1281V+AT86RF230, MAC source, IAR compiler  MSP430+CC2420, Z-Stack/MAC lib, IAR compiler

USN-1.28 ATmega128+CC2420+TI Z-Stack

USN-1.29 ATmega128+CC2420+TI Z-Stack

USN-1.30 ATmega128+CC2420+TI RF lib (source)