Embedded system-Introduction to development cycle and development tool
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This document discusses the development cycle and tools used. It provides an overview of the software and hardware development tools, including editors, assemblers, compilers, linkers, simulators, emulators, debuggers, and more. The development cycle is explained as moving from market research and specification to development, testing, evaluation, and production. Testing is highlighted as taking a major portion of the development cycle. Development tools are also noted as being an important factor in shortening development time.
Embedded system-Introduction to development cycle and development tool
- 1. Introduction to Development Cycle and Development Tool www.pantechsolutions.net 1
- 2. Awareness of Development • Flow of Creating a Product • Tools understanding – Type of Tools • Hardware • Software – Comparison of Hardware Tools 2
- 3. Development Cycle Market Research Development Specification Hardware Software Specification Specification Chip Selection Schematic, FPGA design Coding PCB & simulation Development Simulation Module Test Module Test Evaluation Integration Test Integration Test Production Module Test Integration Test 1. Statistic shows that Testing takes up major time in a Development cycle 2. Development Tools is an important factor to shorten the development time frame. 3
- 4. Development Cycle – Embedded View Development Software Coding in C or Assembly Implementation Specification .c , .asm, .h Coding Assemble or Compile Syntax checking .obj Simulation Linker .mot, .abs, .map, .list Module Test Simulator Software Test Integration Test - Logic checking Module Test Integration Test Emulator -System hardware Integration Test & software checking Actual System Final Product Test 4
- 5. Tools? What Type of Tools? • Software Tool – A selection of user friendly environment providing a good effective and efficient tools – Editor – Assembler – Compiler – Linker – Simulator – Profiler … • Hardware Tool – A selection of physical hardware platform – In-Circuit-Emulator – Debugger – Starter kit … 5
- 6. Software Tool Editor Editor : Generation of assembly and/or C code Assembler : Perform syntax checking and generate object code from assembly code. Assembler Compiler Compiler: Perform syntax checking and generate object code from C code. Linker: Link all object code based on section mapping data (so as to download to the actual Linker MCU). Generate mot and abs(with debugging information) file. Simulator Simulator: Execute the linker output in the PC environment. Thus it cannot simulate the actual hardware peripherals. There are many various version of tools that help in the development cycle. - map viewer, profiler, project generator, application generator, version control… 6
- 7. Hardware Tool There are two main area: – Development Tool for debugging purposes – Programming Tool for the flashing/downloading process. There are 3 classifications of Programming Tool I. Masking - Done at the wafer fab factory (chip level) II. Off-board Programming - Download using a programmer via a programming adaptor.(chip level) III. On-board Programming - Download direct to target system via a programmer (serially to the chip) Off-board Programming MCU On-board Programming (OTP or Flash) PC Adaptor Programming Adaptor MCU (OTP or Flash) PC EEPROM Programmer Target Board 7
- 8. Hardware Development Tool 3 Classifications of Development Tool 1. Evaluation Board, CPU Board, Starter Kit, ROM Emulator… Serial Cable ROM Emulator 2. H-UDI, N-wire, BDM, Evaluation OnCE, JTAG Board Emulator, Target Debugger Board JTAG I/F USB I/F Target Board Actual Chip 3. Emulator, ICE… User Cable PC Emulator Target Board 8
- 9. Comparison of Hardware Tools Topic Evaluation Board JTAG Emulator Emulator Chip Resources Used Not Used Not Used (Memory, NMI pin) Actual chip Used Used Not Used Emulation functions Basic Moderate Complicated (Events Break, Trace, Profile) Usage Basic system, Moderate complexity Complicated system Benchmarking system development Fast, Fast Slow, Tool Time-to-Market Easy to develop Difficult to design 9
- 10. SUMMARY - There is no strict rules in choosing the type of tools. - It depends on the NEED of the customers. 10
- 11. For more Tutorials • www.pantechsolutions.net • http://www.slideshare.net/pantechsolutions • http://www.scribd.com/pantechsolutions • http://www.youtube.com/pantechsolutions 5/24/2011 9:25:25 © Pantech Solutions Pvt Ltd. | All rights reserved www.pantechsolutions.net PM