EEVblog #53 - Mr Murphy and Microchip PIC Silicon Bugs

[AdvocatusDiabolii]

there is something about the way this guy talks that just pisses me off....

[unlokia]

Calm down Dave, it's only a microcontroller ^_^

[ldisc66]

Murphy and I are old friends, though I do wish Murphy could take a vacation every once in awhile. lol!

[williefleete]

it surprises me that they release parts with those kinds of problems.

its almost like they are saying unused as new with damaged third program pair

[Films4You]

Work around use a different Microchip PIC

[Films4You]

"It's not a bug, it's a feature" Google this

[zker666]

Murphy gets me ever single time, if there are 3 options, and one doesnt work, ill pick that one. And im irish so I have murphy's blood that controls me.

[morality101]

I agree, thanks for this video blog. Even Microchip new parts have so many "Gotcha!" in them that one wonders why they haven't learned from past mistakes and try to do better. The reason I believe is Microchip's philosophy when it started out was to make low cost simple controllers for huge mass produced products.

If you were going to buy a million Microchip parts, then a few days or a week or so additional engineering time for developing around for the gotcha's would be acceptable.

[69arildodildo]

Hi!

Good video! You're not the first one with PIC problem, welcome to the club! By the way... The word "pic" means dick in Norwegian! That could answer something!

[joeles69]

at least you would get a better tan with Jim's Mowing.. ;)

[TheAgentAR]

Dave, make a video blog about the different "levels of knowledge" that separate rookie EEs(electronics engineers) from the seasoned EEs. The blog you made on capacitors and their different packages, with detailed explanations of their benefits/downsides and reasons for choosing one over the other was the best! Give us more tips of this sort, but go into other parts besides caps.

[0LoneTech]

The project is looking great! Sorry to hear about the problem, but at least it sounds patchable with some pain. Will those calculators be orderable?

[EEVblog]

Most likely, if it all works the way I expect. Expect another blog on the project in detail in the future if it all comes together.

[TutorialsAndTips101]

I want to start learning about robotics. What do you guys recommend me to start doing first? I would want to build robots like for robo bots at some point.

[Anothercoilgun]

They got me on there bug also. I was pissed because the most important aspect of the chip, programming, does not work. That is not a bug, but more a catastrophic failure.

[EEVblog]

No argument there! The ICSP is a fundamental operational part of the chip. I can excuse some obscure bug in the brownout timing or something, but not the ICSP port!

[scancool]

why you using Pic24?, PIC32 is the new thing, no bugs so far it works everytime unless I forget to connect something

[Anothercoilgun]

Cause I do not need a bulldozer to hammer a penny nail. The 16F 8-pin family still has infinite great usages. New or larger does not mean absolute.

[EEVblog]

PIC32 has plenty of bugs too, check the errata!

PIC32 wasn't low power enough in standby

[Afrotechmods]

As much as I love Microchip and their PIC line, they really need to get their act together as far as silicon bugs. I swear there was one time around 2004 where half the samples I had would die within hours because their ESD protection was not up to spec. Lost many hours my life because of bad TI chips too.

[MonkeyFCoconut]

Unlike the Monty Hall Problem, in this case it was NOT always better to switch. Hahaha... Sorry Dave, it can happen to the best of us.

[wessouthern]

HA! Sucker! We put the 3rd one in there just to fool people!

[JamesHaskin]

lawn mowing franchises for the win :D

[Vlakpage]

So what now, get chip with the good revision and replace it or redesign the board?

[EEVblog]

I've modded this board to work, but I'll wait and see if there are any other changes that need to be made. If there are then I'll swap the pins, if not then I could leave it be and be careful to order Rev 5 silicon.

[ihatespam1977]

Imagine if your product was in mass production and a PIC with a new revision enters the the supply chain and all of the sudden none of the products work anymore.

[Anothercoilgun]

Its called engineering samples. A small batch is always made. That batch is sent to testing. After, its sent to agency testing. So no no mass production failures. If if you skip all the ISO process business are bared to, no company receives all their parts at the same time. By the time they shipped a single unit fault would be found and the remaining purchase orders for the raw components would be canceled till problem solved.

Imagination not required, its experience.

[Adji87]

Haha typical huh? I am just starting out my journey into electronics and discovery murphy gives me the finger EVERY single time haha.

[zincb0y]

the way he talks always amuses me.. haha

[First2ner]

hahaha so funny!

[endesigner]

Nice focusing!