AVR Serial number

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IS there any way other than looking through teh datasheet of the micros to find out if that device has a unique serial number in it?  The Mega328PB has one, but the Mega324 does not.  I looked at the parametric spreadsheet from teh microchip site, but no column I could find answers this question

 

Jim

 

 

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

Last Edited: Sat. Oct 30, 2021 - 01:20 AM
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Not sure this is even valid, but I did a search using windows grep (grepwin) program (a pretty good searcher!!--much better than windoz searcher)...it found 900+ files, (many duplicates of old versions), as can be seen

This also assumes such parts use some form of SIGROW_SERNU.... for serial numbering (You know they'd never vary the name, crying)

Again, this may be full of holes & water (I did not check the results)

You will have to search, since it is about 7 screens of spitout.

 

m=mega? 

tn=tiny ?...etc

xm=xmegea

 

I think I got this scheme from Clawson, when I was lookin for chips that have the PLL clock multiplier for fast PWM (another missing column).

 

 

more .....much more!!  ...this is just a sample

 

Aside from this, I wonder how all these duplicate files can be cleaned up (removed)?  I don't need old versions of parts I never ever used. Perhaps Studio has a cleanup/manager button?

 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

Last Edited: Sat. Oct 30, 2021 - 02:16 AM
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Thanks Candyman!!

 

The three parts I had in mind....'328PB, and the XMEGA32E5 both have the uniqueID in some form.  But it required digging into the data sheets to find what they are called.  The '324 sadly does not.

 

I will look into GREP.  But I think if I look at the parametric table, and find teh devices with 2 usarts, and the other peripherals I need, then look at their datasheets for the uniqueID I will also find what I am looking for as well.

 

GREP does look like a cool tool to get knowledge on.

 

Jim

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

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avrcandies wrote:
(You know they'd never vary the name, crying)

 

Datasheet ATmega48PB-88PB-168PB-DataSheet-DS40001909B.pdf posted 20 October.

 

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Well, that was interesting...I noticed my search did NOT turn up any 328PB's  (which is where I got the item to search for in the first place--from the 328PB data sheet)....maybe the software files are lagging behind

The latest studio files  I had for the 328pb are:

 

328PB.h  1.6.364  10/30/2020

m328PBdef.inc   1.6.364  10/30/2020

and some other 1.6.364 files

 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

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I find it funny that the registers for teh 168PB are SNOBs....devilcheeky

 

Jim

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

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Jim,

 

is it indeed not easier to first make a short list of devices that have all your needs and then quickly go through the datasheets of those and make a final list?

with 2 uarts a lot of the mega and tinys can be scratched off the list, might be that the other requirements will leave you with only a couple of choices.

 

You might perhaps even just need to download the datasheet summary to get your answers if you do not have much bandwith to download full spec.

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meslomp wrote:
with 2 uarts a lot of the mega and tinys can be scratched off the list, might be that the other requirements will leave you with only a couple of choices.
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