Flash retention in uC at higher temps, experience?

Do it again but "in stock only". Makes it dwindle down to 1209 parts. IMHO the guys there need to learn about marketing.

Try to get samples out of their Bay Area office. Did that for a FET a while ago. It took about 10 phone calls to get one call back. Told them I'd pay whatever it takes. Nada, zilch. That taught me a lesson :-(

That would be a start, as long as the device can still be programmed after you've chucked the bootloader.

IAP can increase the risk of flash corruption but not being familiar with the NXP devices I don't know by how much. Nowadays most uC can write flash from within a application though.

Though not directly related,

That's the Irish/Swedish genes in you I guess. Mine are mostly German but I don't get sunburn easily, I just become darker and darker. Hmm, maybe I've got some other genes in me that nobody remembers ...

The climate here is quite moderate, generally. Winters can be like this in the higher elevations (I'm at about 900' above sea level), but this is rarer at the lower elevations in western Oregon:

That above picture last happened near my property in winter of 2003. But I've not seen the like since then.

We used to get a silver thaw in the lower elevations near Portland almost every other year or every year. I haven't seen one since 1981, though. And Mt. Hood has lost close to 50% of its glacier mass balance (gleaned from personal discussions with two climate researchers -- one who studies mass balance of the Washington state glaciers and the other who personally treks through Mt. Hood every year gathering surface ice/snow data) in the last 30-50 years. (If I recall, there are 11 significant glaciers on Mt. Hood.) I have lived here since 1955 and my own experience concurs with this trend. So the winters in the lower elevations of the Willamette valley, in my opinion, have become less severe in terms of ice/snow. However, I think, precipitation seems to have remained similar overall. Just the distribution seems to be perhaps a little more rain in the winters and less in the summers.

In short, you'd find it a paradise for photography pretty much all year 'round.

Yes, it's been weird here, this year. There seems to have been a significant change in the wind patterns over the north polar area -- a shift in the cyclonal center of mass. Winds and water currents drove sea ice along the edge of the Russian Arctic (Novaya Zemlya) and a sort of polynya emerged a bit early off the Canadian arctic coast between the archipelago, the Alaska border and Baffin Bay. This year seems to be unusual to me in these respects and perhaps may have played a part in the somewhat unusual (record breaking, here) weather patterns we've had in the month of May.

By the way, that polynya I mentioned and other smaller polynyas suggest furthering of the thin and fairly weak annual ice of late. This is consistent with the fact that the relative fraction of multi-year ice in the central Arctic has plummeted, roughly since the mid-1990s. However, it also seems that this year's first year ice (brine pocketed) is in an unusual location that may help it survive better than usually expected -- much of it is farther north than usual so it might be less vulnerable to melt allowing time for the brine to expel and the ice to firm up somewhat. Still, while having first year ice further north means that ice may have a better chance to continue a while longer that shouldn't be read as good news -- it means that first year ice is forming closer to the pole which is generally not good big picture news and the overall direction of decline there continues.

As more of the polar ocean becomes exposed to solar insolation, which has quite a different albedo, I expect continued significant and interesting changes in the energy transfer mechanisms for some years.

Jon

I might be a bit more of a mutt than I know about, too. But I have the near transparent skin you'd expect of those needing vitamin D production in their skins in regions north of the arctic circle. :) In high school, back when there wasn't an "invisible man" that the biology class could use, I got trotted up so kids could see all the veins! Embarrassing. ;)

Jon

I am glad to hear that some Californians believe that kind of figure! It might act to slightly stem the otherwise larger flood coming into the state. I've never seen it and especially never for something costing $400k, though. And I think I've lived in the most highly taxed areas of the state so I'd like to know where exactly that occurs, because it would be an interesting exercise to go check.

I'm finding myself tearing up the decking (the home is 5000 sq ft, and the decking is about another 4000 sq ft around it) in sections, treating the wood, replacing pieces that need replacing, and putting things back... each and every year, just to keep apace the damage.

Designing any structure here means paying CLOSE attention to water flows. For example, you dare not install a window into the side of the house in such a way that you leave a flat "lip" on the topside. Water will collect on even a quarter-inch protrusion and will quite simply rot out any wooden siding nearby, including cedar. Slopes are required everywhere -- no right angles anywhere, not even vertical ones, when working with wooden structures. Concrete and asphalt is quickly covered in moss and requires pressure washing on a regular basis (my quarter mile driveway comes to mind and is requiring yet another long workout from me, this year.) Life grows on rocks, glass, and on top of life growing on top of life growing on top of life. I have ferns growing on my trees, and moss growing on those same trees AND the ferns growing on them!

Moss grows on your car bumpers and rubber insulation, as well. 20 mule team boraxo, powdered zinc, and powdered iron become your friend, though. :)

Jon

Server not found :-(

True, they do need a 'motivated buyer' :)

- and I'll also admit we do not currently have infineon devices in active production designs (but we did use their C517 & CAN devices, some years ago, and have short-listed their MOSFETs recently... )

That said, they must be doing something right, as I see infineon are now #1 in Industrial :

-jg

I don't trust such sources too much. What I see in my daily biz is that most circuits contain tons of American semiconductors, some ST because they often have really low prices, and passives are all over the map and usually not country-specific.

For jelly-bean parts pricing is everything. Guys like us spec in a MMBT3904 and then there are 8-10 manufacturers.

AFAIK the earnings at Infineon are still negative. Not exactly my role model for a successfully run semiconductor manufacturer. And, of course, one has to ask oneself why other companies such as National earn a profit. They must be doing something right.

Oops - mispastee.

Interesting, thanks. However, the house fires they mentioned will usually present a whole different problem. The enclosures of most things electronic are plastic and will have shriveled into clumps that are beyond recognition. With lots of other debris on top of them.

With a programmer you can. Obviously, once the bootloader is gone you can't program through the '952's onboard serial port.

Well, you'd have to be able to, to reflash-and-switch :-)

Writing to Flash with the IAP facility is a multi-step process so there is some protection against runaway code.

Or you can write your own little bootloader into your code. That how the MSP430 guys often do it when they don't like the one from TI.

True :-)

Ah, then you might consider moving down here, Jeorg! (and Jon would no doubt KNOW that he was in hades... ;-) )

Today, it is only going to be about 115, but it is still early in the summer. I have a view that is panoramic, going all the way from Palm Springs to the south (I have a ridge to my direct south that blocks the view somewhat) to Mount San Jacinto across the Banning Pass (and a thousand wind turbines) to Mount San Gorgonio. In winter, it only rarely hits freezing, and I can swim in my solar heated pool from March to October. I do remember rain, and we actually had some this year, maybe 2-3" or so during the winter...

Charlie Edmondson Engineering