Is it an industry requirement that application notes always contain an error?
I've just been using C code from a 1-wire application note and it didn't work. It took a couple of hours with the scope checking timings etc before I spotted a wrong hex address in the code.
Grrr.
They were testing you to see if you were paying a attention!
Sometimes that works to let them know how interested their users/readers really are about what they are looking at.
Well, that's my story and I am sticking to it. :)
Jamie
How do you expect application "engineers" to get their jollies ?:-) ...Jim Thompson
-- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at
I wonder how many (how many hundred?) other engineers made the same discovery. I've seen decade-old data sheets that are still wrong, years after apps engineers have helped me find a bug.
-- John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation
They do that just to help the young. Anyone who wants to learn electronics can get a stack of app notes, determine in advance that every one of them has something serious wrong with it, and learn a lot finding them.
(My early adolescence in a nutshell. Then I discovered girls.) ;)
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
found out the same about girls? :p
-Lasse
Some of them are a little buggy too.
-- John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators
Hallo and good morning. Guinea pig is not pig. Application engineer is not engineer.
Sometimes I have to look into the reference C code; but I never use it as copy-paste.
Vladimir Vassilevsky DSP and Mixed Signal Consultant
"Raveninghorde"
** They often contain typos, like any document.Typos just like YOUR one in the heading here ...
** Yawnnnnnnnn........ Phil
Let me explain how documents get created. People who know what they are doing create circuits, programs, etc. that work. [Hey, excluding dry labbers.] Marketing doesn't like how your schematic looks, blah blah blah. They pretty things up and introduce errors. Many schematics in datasheets do not like like they came from schematic capture because....well... they didn't come from schematic capture. Some marketing type took a good schematic captured circuit and then drew it in Visio or whatever.
Here is a clue on how to sort fact from fiction in datasheets. Scope photo: fact. Spreadsheet data: often fiction or at least prone to error because some marketing type screwed with it. LTC as an example has many scope photos or at least documents that look like they came right off an instrument (spectrum analyser, DSA, AP, etc.). I suspect design engineering at LTC has a bit more control over the marketing types.
Without even seeing your code error, I have this nagging suspicion is some marketing type didn't like the font in the code they were given and re-typed it, leaving out a line or adding a bug. In C, a + and ++ are very different!
I don't know if they still do so but UK Ordnance Survey maps used to have one deliberate (minor) error per map for copyright reasons. Only one person with access to the safe containing the nature of each error
Yes. Pineapple cake, upside down.
What make you think 'application notes' are authored by 'application engineers'?
And you know all about engineers and their capacities from where, asshole?
And you are the abvmaster... err appmaster, right?
s
He posts here from time to time, and he's pretty good; much better than Raveninghorde. I don't recall having seen your nym at all - maybe you should have lurked for a bit longer before you decided who you should call an asshole.
-- Bill Sloman, Nijmegen
It's AlwaysWrong.
I'd rather he just lurk forever.
Now, them's fighting words! As an application engineer for ten years, I can tell you that we WERE engineers, in every aspect!
Charlie
Analog Devices AD9850. The data sheet shows one schematic for the test circuit, and the test software shows another. The first won't load some of the data to the chip, the second does. I had a series of emails about that part, and the guy asking questions doesn't believe that the DS schematic is wrong.
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