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0 pointsChrisMarshallNY8mo ago0 comments

Good point, and really just semantics. I guess you could say native mobile apps are “firmware,” using my criteria.

But I put as much effort into my mobile apps, as I did, into my firmware projects (it’s been decades since I wrote firmware, BTW. The landscape is quite different, these days -This is my first ever shipped engineering project[0]. Back then, we could still use an ICE to debug our software).

It just taught me to be very circumspect about Quality.

I do feel that any software (in any part of the stack) I write that affects moving parts, needs to be quite well-tested. I never had issues with firmware, but drivers are another matter. I've fried stuff that cost a lot.

[0] https://littlegreenviper.com/TF30194/TF30194-Manual-1987.pdf

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names_r_hard8mo ago

Yes, it gets a bit blurry, especially given how fast solid-state storage is these days.

I think IoT has seen a resurgence in firmware devs... but regrettably not so much in quality. Too cheap to be worth it, I suppose. I can imagine a microwave could be quite a concerning product to design - there's some fairly obvious risks there!

Certainly, whatever you class ML as, we could damage the hardware. The shutter in particular is quite vulnerable, and Canon has made an unusual design choice that it flashes an important rom with settings at every power off. Leaving these settings in an inconsistent state can prevent the cam from booting. We do try to think hard about contingencies, and program defensively. At least for anything we release. I've done some very stupid tests on my own cams, and only needed to recover with UART access once ;)

I haven't use ICE, but I have used SoftICE. Oh, and we had a breakthrough on locating JTAG pinouts very recently, so we might end up being able to do similar.

ChrisMarshallNYOP8mo ago

You do need to be careful with the shutter. It is possible to do damage (and add dirt) from it.

We had to add software dust removal, because the shutter kicked dirt onto the sensor.

I’m assuming that, at some point, the sensor technology will progress to where mechanical shutters are no longer necessary.

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