About jwgrenning

Hi I've been developing and managing software for decades now. Starting in embedded, but doing more than embedded. Many of the mainstream software development techniques have crossover value to embedded. My mission is to spread some of those techniques to the embedded community. My company is Wingman Software. Please visit my site.

Don’t Let Embedded Tool Chain Slow You Down.

During my TDD session at the Embedded Systems Conference yesterday, I did a demo. Before the demo, I make the case for TDD as a way to prevent bugs (see Physics of TDD). For the live demo I usually code on my mac and run the tests there as well. The question always comes up: “You are running tests on your PC, can you run them on the target?” or maybe “Sure you can TDD on a PC, but what about the real hardware?”
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Deep Agile Embedded Brain Storm

Let’s say you were an embedded systems developer, and you were planning on attending a conference like the Deep Agile Embedded.

What questions would you hope you could get answers for at the conference?

What if you already knew it all but were sending your boss, co-worker, or CEO who needed to learn more, what would you want them to hear about?

Would you want to do some hands on Test Driven Development?

Here are some of the questions we have so far:
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No time for proactive tests

Every now and then I get a new automatic update. I usually just press install. Today I browsed the release notes for the Adium IM client update (below). There are six new features, denoted with a “*”. The rest (about 30 of them) are fixes, meaning something was broken. These guys must be too busy to proactively test Adium. Test Driven Development probably would not work for them 🙂
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Planning Poker Party (The Companion Games)

High-Low Story Showdown, Deal and Slide, Developer Guts, and Customer Guts

It’s sprint zero and you have a stack of stories needing their first estimate? You need an initial release plan. What should you do? It’s kind of hard to start on day one with Planning Poker. There is a missing baseline to estimate against.
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TDD Stepping Stones

Imagine you are trying to cross a mountain stream. You could make a running leap and get to the other side. Sometimes that works, other times you get wet. When there are rocks sticking out of the rushing water, you can step from rock to rock and get across the stream without getting wet. Sure there are some streams you can jump across, go ahead and jump. Other streams require a more careful approach.
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Learning Tests are Free!

My son is studying computer science at U of I in Chicago. He is taking an operating systems class and has to do some projects in C. (Some things change, some things stay the same.) He had an internship over the last 8-9 months and was doing TDD in Java. So he might be in the early stages of a test infection.

He has not done much C so he’s got some learning to do. I thought I better show him CppUTest. He could use it for a play ground to learn some of the subtleties of C, as well as use TDD.
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