a few Atmega1284P tqfp pkg arrived at Digikey!

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Vaporware finally turns real! :shock:
200+ ...wonder how long they will last...

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Arrow has a few in stock, too.

Stealing Proteus doesn't make you an engineer.

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ArnoldB wrote:
Arrow has a few in stock, too.
Arrow only has MLF/QFN, the ones at Digi-Key are TQFP (now down to 50+, get 'em while they last).

Mouser sent me an email last week indicating that they will finally ship my order (placed in June) for ATmega1284P-PU devices the first week in February. Since that is the first such email that I've gotten from them since the initial backorder notice, I judge them to be fairly confident that they'll have stock then.

It looks like the pipeline is beginning to get its first trickle. The local Atmel FAE told me that the mega1284P wafers went to packaging in December but that there have been issues getting the production line rolling.

Don Kinzer
ZBasic Microcontrollers
http://www.zbasic.net

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TCNT3 is no more mentioned in the new(1/10) datasheet, anyone know why?

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It appears in the new "combined" datasheet for the entire family (P/PA) they have dropped Timer3.

That could break existing code, I guess. But the only '1284s in the wild are on the Atmel RF boards, right?

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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theusch wrote:
But the only '1284s in the wild are on the Atmel RF boards, right?
I (and, presumably, others) have samples that are probably from the same production run as those on the Atmel (Raven?) boards. I have some (that recently appeared at Digi-Key) on the way; they should be here by Friday. I'll report back as to the date codes and existence of Timer3 shortly after I get them.

Don Kinzer
ZBasic Microcontrollers
http://www.zbasic.net

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Don't know if this means anything but Sim V2 in Studio 4.18SP1 has a timer3 in the 1284P ?

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Looks like their was some interest in this chip after it being vaporware for a year.. Digikey,Arrow,Avnet, NuHorizons all sold their stock of the TQFP package in about 48 hours.
Mouser lists the TQFP part as a Non-Stocked part, so they didn't have any to sell !
Hopefully Atmel made more than a few thousand this last mfg run and that 15+ weeks Lead-time can be improved! Maybe the manager at Mouser will wake up by then also.....

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theusch wrote:
It appears in the new "combined" datasheet for the entire family (P/PA) they have dropped Timer3.
I asked an Atmel FAE about this. He replied: "Of course nothing has changed internally and it has 4 timers. Timer3 emission [sic] from the latest data sheet is an oversight on our part. I have brought this up to attention of apps as well as marketing in Norway. Data sheet will be updated. "

Don Kinzer
ZBasic Microcontrollers
http://www.zbasic.net

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The data sheet is also missing ELPM and RAMPZ which are only applicable to devices with greater than 64K of flash program memory.

After several notifications Atmel finally removed ELPM and RAMPZ from the ATmega164PA, 324PA and 644PA datasheet doc8152.pdf in revision F.

Atmel added the ATmega1284P to doc8152.pdf in revision G, which should include ELPM and RAMPZ.

Recently Atmel created doc8272.pdf revision A, for ATmega164A, 164PA, 324A, 324PA, 644A, 644PA, 1284 and 1284P - which is also missing ELPM and RAMPZ.

Other than hiccups like this AVR datasheets are excellent. :D

I'll send them another note.

Stan

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Anyone see any mention of the Math Extensions in any of the datasheets?

Imagecraft compiler user

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Is there a RAMPZ register in the 1284P or not?

How about ELPM?

/Janne

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lillahuset wrote:
Is there a RAMPZ register in the 1284P or not?
Of course. Any AVR with more than 64K of Flash *must* have a RAMPZ register. Without it, one would not be able to read or write the Flash above 64K.

Don Kinzer
ZBasic Microcontrollers
http://www.zbasic.net

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So maybe they should mention it in the datasheet... But what do I know?

How about ELPM?

/Janne

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lillahuset wrote:
So maybe they should mention it in the datasheet.
The deficiencies with respect to the mega1284 in the new combined datasheet for the 164/324/644/1284 have been discussed:
https://www.avrfreaks.net/index.p...

In that thread, you'll find a link to the original mega1284P-only datasheet that probably has fewer omissions.

lillahuset wrote:
How about ELPM?
Yes, all AVRs with more than 64K support ELPM, too. Without it, there would be no way to read from Flash above 64K?

Don Kinzer
ZBasic Microcontrollers
http://www.zbasic.net

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Thank you for your clarifications.

/Janne