2012-10-21 01:14:50 +00:00
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<!doctype html>
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2016-03-20 17:50:14 +00:00
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<html>
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2022-03-28 10:26:49 +00:00
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<title>Renode: Easy CI for your Weird Hardware</title>
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<link rel="stylesheet" href="dist/reset.css">
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2022-03-28 14:34:23 +00:00
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<!--
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2022-03-28 10:26:49 +00:00
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* Emulators are useful tools
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- PC emulator (e.g. Docker on Mac, WSL on Linux)
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- NES emulator -- fun and games, realtime output
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- Also have debugging emulators
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- Renode
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* Renode Stack
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- CPU cores written in C
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- arm, i386, ppc, riscv, sparc, xtensa
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- Windows, Mac, Linux
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- Peripherals and UI written in C#
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- Extensible via Python and C#
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- Write once. Run anywhere. Using C# to define new peripherals
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* Three major users
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- Designers of new boards
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- Reverse engineering exsisting hardware
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- Silicon designers
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* Designers of new boards
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- One or more chips
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- How are they connected?
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- What weird hardware exists?
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* Concurrent emulation of multiple devices
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- Can connect multiple devices, e.g. via UART, GPIO, SPI, Ethernet, CAN...
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- All devices are emulated using the same time source
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- Helps to debug timing differences with different processors on a board
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* Board definition format
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- Easily define memory layout
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- Easily move blocks around
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- Only define what's necessary
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- You don't need to be perfect, just good enough!
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* Can read SVD files
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* Hardware has Similarities
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- Picture of existing register sets
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- There are only so many combinations
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- Rip. Mix. Burn. Many chips are just copies of one another.
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* Tests in CI
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* Reverse engineering existing hardware
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* If it's a supported architecture, it's easy to run code
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* LoadBinary and set PC
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* Can skip much of the boot ROM
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* Attach GDB
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* Reproducible makes it easy to test theories
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* Developing new Silicon blocks
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* Betrusted hardware
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- Create a new design in LiteX / Verilog
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- Document the design
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- Create a model
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- Timing isn't as critical
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2022-03-28 14:34:23 +00:00
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-->
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2022-03-28 10:26:49 +00:00
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<body>
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<div class="reveal">
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<div class="slides">
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<section>
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<section>
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<h2>What is an Emulator?</h2>
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<ul>
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2022-03-28 14:34:23 +00:00
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<li>Console</li>
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2022-03-28 10:26:49 +00:00
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<li>Desktop</li>
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<li>CPU</li>
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</ul>
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</section>
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<section>
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2022-03-28 14:34:23 +00:00
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<h2>Whole-System Emulator</h2>
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<ul>
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2022-03-28 14:34:23 +00:00
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<li>Wii Virtual Console</li>
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2022-03-28 10:26:49 +00:00
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<li>VirtualBox</li>
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<li>Parallels</li>
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</ul>
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</section>
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<section>
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2022-03-28 14:34:23 +00:00
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<h2>Transparent Emulator</h2>
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2022-03-28 10:26:49 +00:00
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<ul>
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2022-03-28 14:34:23 +00:00
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<li>HyperV</li>
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<li>WSL2/Docker</li>
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2022-03-28 10:26:49 +00:00
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<li>qemu on Linux</li>
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<li>Rosetta on Mac</li>
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</ul>
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</section>
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<section>
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2022-03-28 14:34:23 +00:00
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<h2>Debugger/Emulator</h2>
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<ul>
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2022-03-28 14:34:23 +00:00
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<li>FCEUX (Nintendo Entertainment System)</li>
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<li>Dolphin (Wii / Gamecube)</li>
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</ul>
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</section>
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<section>
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<h2>Renode Is All of These</h2>
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<ul>
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<li>Console: Able to present an interactive environment</li>
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<li>Transparent: Can run in CI via Robot commands</li>
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<li>Debugger: Has a GDB server built in</li>
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</ul>
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</section>
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</section>
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<section>
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<section>
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<h2>Example of Weird Hardware</h2>
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<ul>
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<li>NRF52840</li>
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<li>LM74 Temperature Sensor</li>
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</ul>
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</section>
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<section>
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<h2>Example of Weird Hardware</h2>
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<ul>
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<li>NRF52833</li>
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<li>LM74 Temperature Sensor</li>
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</ul>
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</section>
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<section>
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<h2>Example of Weird Hardware</h2>
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<ul>
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<li>BlueNRG1</li>
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<li>LM74 Temperature Sensor</li>
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</ul>
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</section>
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<section>
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<h2>Example of Weird Hardware</h2>
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<ul>
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<li>RISC-V</li>
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<li>FPGA-based framebuffer</li>
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<li>Initial graphical demo in 1 hour</li>
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2022-03-28 10:26:49 +00:00
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</ul>
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</section>
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</section>
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2022-03-29 08:15:55 +00:00
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<section>
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<section>
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<h2>What makes hardware "Weird"?</h2>
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<ul>
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<li>Unusual CPU architecture</li>
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<li>Different model of chip than commonly found</li>
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<li>Additional hardware</li>
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<li>More CPUs per board</li>
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</ul>
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</section>
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<section>
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<h2>Unusual CPU architecture</h2>
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Sorry, can't help
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</section>
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<section>
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<h2>Different model CPU</h2>
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<ul>
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<li>Maybe it's just a variant</li>
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<li>Perhaps memory regions were shuffled</li>
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<li>Does it use the same hardware block as someone else?</li>
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</ul>
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</section>
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<section>
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<h2>New hardware version</h2>
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<ul>
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<li>Do you use the new, specialized features?</li>
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<li>Lots of UARTs support Infrared. Do you need that?</li>
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</ul>
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</section>
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<section>
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<h2>Completely new hardware</h2>
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<ul>
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<li>Time to break out C#</li>
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</ul>
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</section>
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</section>
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<section>
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<section>
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<h2>What is "Firmware"?</h2>
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</section>
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<section>
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<h2>How does this interact with $VENDOR_TOOL?</h2>
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</section>
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<section>
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<h2>What about boot ROMs?</h2>
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</section>
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<section>
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<h2>What about missing registers?</h2>
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<ul>
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<li>Very few projects use built-in blocks</li>
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</ul>
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</section>
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</section>
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<section>
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<section>
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<h2>SVD Files</h2>
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</section>
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<section>
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<h2>Logging Memory Accesses</h2>
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</section>
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<section>
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<h2>Debugging with GDB</h2>
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</section>
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</section>
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2021-11-11 14:13:31 +00:00
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</div>
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2022-03-28 10:26:49 +00:00
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</div>
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<script src="dist/reveal.js"></script>
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<script src="plugin/notes/notes.js"></script>
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<script src="plugin/zoom/zoom.js"></script>
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<script src="plugin/markdown/markdown.js"></script>
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<script src="plugin/highlight/highlight.js"></script>
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<script>
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/** This used to be a part of Reveal.js, but was removed at some point */
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function getQueryHash() {
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function deserialize(value) {
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if (typeof value === 'string') {
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if (value === 'null') return null;
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else if (value === 'true') return true;
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else if (value === 'false') return false;
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else if (value.match(/^-?[\d\.]+$/)) return parseFloat(value);
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}
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return value;
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}
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2012-03-24 16:48:16 +00:00
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2022-03-28 10:26:49 +00:00
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let query = {};
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location.search.replace(/[A-Z0-9]+?=([\w\.%-]*)/gi, a => {
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query[a.split('=').shift()] = a.split('=').pop();
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2012-08-12 00:25:55 +00:00
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});
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2022-03-28 10:26:49 +00:00
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// Basic deserialization
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for (let i in query) {
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let value = query[i];
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query[i] = deserialize(unescape(value));
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}
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// Do not accept new dependencies via query config to avoid
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// the potential of malicious script injection
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if (typeof query['dependencies'] !== 'undefined') delete query['dependencies'];
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return query;
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}
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var presenter = !!getQueryHash().s;
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// More info about initialization & config:
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// - https://revealjs.com/initialization/
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// - https://revealjs.com/config/
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Reveal.initialize({
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hash: true,
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controls: presenter ? false : true,
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progress: true,
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history: true,
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center: true,
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controlsTutorial: presenter ? false : true,
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slideNumber: presenter ? null : 'c/t',
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// The "normal" size of the presentation, aspect ratio will be preserved
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// when the presentation is scaled to fit different resolutions. Can be
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// specified using percentage units.
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width: 960,
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height: 700,
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// Factor of the display size that should remain empty around the content
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margin: 0.1,
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multiplex: {
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// Example values. To generate your own, see the socket.io server instructions.
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secret: getQueryHash().s || null,
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id: '160c0567ef5ca18f',
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url: 'https://p.xobs.io/'
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},
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// Bounds for smallest/largest possible scale to apply to content
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minScale: 0.02,
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maxScale: 5.5,
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transition: 'slide', // none/fade/slide/convex/concave/zoom
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// Don't forget to add the dependencies
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dependencies: [
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{ src: 'https://reveal-multiplex.glitch.me/socket.io/socket.io.js', async: true },
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{ src: 'https://reveal-multiplex.glitch.me/client.js', async: true }
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],
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// Learn about plugins: https://revealjs.com/plugins/
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plugins: [RevealMarkdown, RevealHighlight, RevealZoom]
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});
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</script>
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</body>
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2022-03-29 08:15:55 +00:00
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</html>
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