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Software Toolchains

Software Toolchains. Motivation. Write. Run. Desktop. Edit, compile, link, run, debug same platform. Same. Target. Host. Embedded. Edit, compile, link, debug on host; run on different target. Different. Run. Write. Basic Development Process.

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Software Toolchains

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  1. Software Toolchains

  2. Motivation Write Run Desktop Edit, compile, link, run, debug same platform Same Target Host Embedded Edit, compile, link, debug on host; run on different target Different Run Write

  3. Basic Development Process • Environment consists of Host (workstation) and a Target (embedded hardware) • Edit, compile, link code on the Host • Run on the Target • Debug (ideally) partly on the Host and Partly on the Target Instructor: G. Rudolph, Summer 2008

  4. Lejos Development Process Operations on the Host Operations on the Target Java Source Files Java SDK (Eclipse) Download via the USB or BT Eclipse Plugin Java Class Files nxjc nxj NXT Brick Binary File(s) Instructor: G. Rudolph, Summer 2008

  5. Downloading Software • Brick has programmable 256KB Flash, 64 KB RAM • Programs persist in Flash • Simple process using the command line, or Eclipse Plugin Instructor: G. Rudolph, Summer 2008

  6. Toolchain Concepts • What is a toolchain • What are the tools in a typical toolchain and their roles (what they do) • How and where the Java tools we are using fit into that process • Effective toolchains stay out of the way • What level of tool control you care about depends on your role in a project Instructor: G. Rudolph, Summer 2008

  7. Targets • Volatile memory vs. non-volatile memory • PROM, ROM, Flash • Emulators, ICE-s, Monitors • How you load software onto a target • Startup and reset conditions • Choices for programmable boards Instructor: G. Rudolph, Summer 2008

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