megaAVR 0-series

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http://packs.download.atmel.com/#collapse-Atmel-ATmega-DFP-pdsc

1.2.203 (2017-12-15)

Corrected register names for ATmega4809, ATmega4808, ATmega3209 and ATmega3208.

1.2.150

...

Added ATmega4809, ATmega4808, ATmega3209 and ATmega3208.

Two-level (plus NMI) interrupt controller

32KB and 48KB flash (likely unified memory)

28/32 pins for 8, 48 pins for 9

 

"Dare to be naïve." - Buckminster Fuller

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"Dare to be naïve." - Buckminster Fuller

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oooh...  Looks like there might even be a DIP-28 !

 

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Certainly gives the impression that the ATtiny's (xtiny's) are limiting out at 16KB and that 32KB, and larger?, will be classified as ATMega, though that conflicts with what Jan (je_ruud) wrote here.  It would be nice to see an actual roadmap!  Microchip|Atmel, are you listening?

 

Seems to also confirm comments in other threads, made by Microchip|Atmel personnel, that indicated there would be no Xplained Pro based on an ATtiny1616 as they are most likely going to produce an Xplained Pro 32xx or 42xx instead. 

 

EDIT: je_ruud

 

"I may make you feel but I can't make you think" - Jethro Tull - Thick As A Brick

"void transmigratus(void) {transmigratus();} // recursio infinitus" - larryvc

"It's much more practical to rely on the processing powers of the real debugger, i.e. the one between the keyboard and chair." - JW wek3

"When you arise in the morning think of what a privilege it is to be alive: to breathe, to think, to enjoy, to love." -  Marcus Aurelius

Last Edited: Sun. Dec 31, 2017 - 05:14 PM
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So, 3 levels of interrupt priority now - nice!

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Two years ago the plans were completely different (, and we also had other owners...). Earth spins, plans change and we just have to compensate and make the best out of it.

 

Currently it seems to me (Marketing people are rather unpredictable at times. Or predictably unpredictable...) that what differs the new tiny's from the new mega's is pin count. But you won't find tiny's with >32kb flash. (.. ... Yet? Marketing, you know.)

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je_ruud wrote:
..

Currently it seems to me (Marketing people are rather unpredictable at times. Or predictably unpredictable...) that what differs the new tiny's from the new mega's is pin count. But you won't find tiny's with >32kb flash. (.. ... Yet? Marketing, you know.)

I'll go with your "predictably unpredictable" assessment.  Guess we will just have to wait and see what pans out.

"I may make you feel but I can't make you think" - Jethro Tull - Thick As A Brick

"void transmigratus(void) {transmigratus();} // recursio infinitus" - larryvc

"It's much more practical to rely on the processing powers of the real debugger, i.e. the one between the keyboard and chair." - JW wek3

"When you arise in the morning think of what a privilege it is to be alive: to breathe, to think, to enjoy, to love." -  Marcus Aurelius

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Or, maybe, what pins out?

 

Jim

Jim Wagner Oregon Research Electronics, Consulting Div. Tangent, OR, USA http://www.orelectronics.net

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Microchip

AN2515 Low-Power Techniques

http://ww1.microchip.com/downloads/en/appnotes/00002515b.pdf

(page 17)

10. Revision History

B

01/2018

Added some new sections:

• tinyAVR 0-series

• megaAVR 0-series

• Execution of the Sleep Instruction and Shared Variables Between ISR and Main

via https://www.microchip.com/search/searchapp/searchhome.aspx?q=atmega3209&resperpage=50&id=2

 

bits of PRR moved to each peripheral (p.7)

additional BOD mode (p.15)

 

"Dare to be naïve." - Buckminster Fuller

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Microchip Technology Inc

Microchip

AN2633

Precise, Ultra-Low-Power Timing using Periodic Enabling of the 32.768 kHz External Crystal Oscillator for Recalibration of the ULP Internal Oscillator

01/30/2018

http://www.microchip.com/wwwappnotes/appnotes.aspx?appnote=jp604346

Microchip Technology Inc

Microchip

AN2634

Bootloader for tinyAVR 0- and 1-series, and megaAVR 0-series

by Egil Rotevatn

02/05/2018

http://www.microchip.com/wwwappnotes/appnotes.aspx?appnote=en604508

 

"Dare to be naïve." - Buckminster Fuller

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Microchip Technology Inc

Microchip

ATmega4809 Xplained Pro Schematics

http://ww1.microchip.com/downloads/en/devicedoc/atmega4809_xplained_pro_schematics.pdf (5.6MB)

via

Microchip Technology Inc

Microchip

Schematics

http://www.microchip.com/doclisting/techdoc.aspx?type=schematics

Search by: pull-down menu, select Document Title

enter ATmega4809

Search

engineering sample

An Xplained Pro that can power the target MCU at 5V (is that a first?)

Level converters!  Thank you!

ATECC508A cryptographic authenticator (ATECC608A adds AES-128)

3 Xplained Pro headers

1 mikroBUSTM header

32KHz crystal (Kyocera ST3215SB32768C0HPWBB)

 


http://www.microchip.com/wwwproducts/en/atecc508a

http://www.microchip.com/wwwproducts/en/atecc608a

Mouser Electronics

AVX / Kyocera

Crystals SMD 32.768kHz Tuning Forks 7pF

https://www.mouser.com/ProductDetail/AVX-Kyocera/ST3215SB32768C0HPWBB?qs=%2fha2pyFaduh8oCrdFLUv8Ccy3mfYtgQAHuqnoJP9i3zMn1Xvp%2fvrd0H7ZVNGPxY0

 

"Dare to be naïve." - Buckminster Fuller

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From iom4808.h:

#define MAPPED_EEPROM_START     (EEPROM_START)
#define MAPPED_EEPROM_SIZE      (EEPROM_SIZE)
#define MAPPED_EEPROM_PAGE_SIZE (EEPROM_PAGE_SIZE)
#define MAPPED_EEPROM_END       (MAPPED_EEPROM_START + MAPPED_EEPROM_SIZE - 1)

#define FUSES_START     (0x1280)
#define FUSES_SIZE      (10)
#define FUSES_PAGE_SIZE (64)
#define FUSES_END       (FUSES_START + FUSES_SIZE - 1)

#define INTERNAL_SRAM_START     (0x2800)
#define INTERNAL_SRAM_SIZE      (6144)
#define INTERNAL_SRAM_PAGE_SIZE (0)
#define INTERNAL_SRAM_END       (INTERNAL_SRAM_START + INTERNAL_SRAM_SIZE - 1)

#define IO_START     (0x0000)
#define IO_SIZE      (4352)
#define IO_PAGE_SIZE (0)
#define IO_END       (IO_START + IO_SIZE - 1)

#define LOCKBITS_START     (0x128A)
#define LOCKBITS_SIZE      (1)
#define LOCKBITS_PAGE_SIZE (64)
#define LOCKBITS_END       (LOCKBITS_START + LOCKBITS_SIZE - 1)

#define MAPPED_PROGMEM_START     (0x4000)
#define MAPPED_PROGMEM_SIZE      (49152)
#define MAPPED_PROGMEM_PAGE_SIZE (128)
#define MAPPED_PROGMEM_END       (MAPPED_PROGMEM_START + MAPPED_PROGMEM_SIZE - 1

 

Hmm, memory mapped FLASH.

Greg Muth

Portland, OR, US

Xplained/Pro/Mini Boards mostly

 

Make Xmega Great Again!

 

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So you can get an explained pro, lots of app notes but no datasheet?? surprise

 

...and I would be the first one to put my hand up for a board in case there is a giveaway..... devil if I can get a datasheet of course.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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I've looked at the schematic. 48pin LQFP 0.5mm pitch, 41 i/o (wow!), at least 3 uarts .... (I always need uarts...).

48K flash all mapped to data space is nice too. 6K ram is also a pleasant surprise.

 

I have a feeling that Microchip with these new tiny and mega family wants to keep the architecture in the 64K limit.

Personally, I would do that the same. It's natural (and simpler) to have the 8bitters in max 64K range.

And for anything else, there is always cortex-m.

Anyway, it's a very pleasant surprise to see the avr architecture still actively developed, even if it will be kept in the 64K range smiley

 

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rammon wrote:
It's natural (and simpler) to have the 8bitters in max 64K range.

And for anything else, there is always cortex-m.

And in-between are 16bitters.

It's been said that 16 bits is a sweet spot (code density, classic C int)

XMEGA was advertised as 8/16b; XMEGA AVR have a 24b address space.

AVR16 anyone?

Merge the AVR and PIC24 camps?  (best of both)

 

PIC32 can compete against arm Cortex-M.

A concern is the sale of MIPS.

 

Imagination Technologies

Completion of sale of MIPS

25th October 2017

https://www.imgtec.com/news/press-release/completion-of-sale-of-mips/

http://www.microchip.com/forums/FindPost/1023282 by wdy

(post #12)

...

How else would the evolution be kept if everybody jumped on the hyped ARM bandwagon?
...

Eggs in two baskets.

 

Edits: link target, #12

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Thu. Feb 8, 2018 - 12:51 PM
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They are also defined in current avrdude.conf, for example:

 

#------------------------------------------------------------
# ATmega4809
#------------------------------------------------------------

part parent    ".avr8x_mega"
    id        = "m4809";
    desc      = "ATmega4809";
    signature = 0x1E 0x96 0x51;

    memory "flash"
        size      = 0xC000;
        offset    = 0x4000;
        page_size = 0x80;
        readsize  = 0x100;
    ;

    memory "eeprom"
        size      = 0x100;
        offset    = 0x1400;
        page_size = 0x40;
        readsize  = 0x100;
    ;
;

 

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gchapman wrote:

rammon wrote:
It's natural (and simpler) to have the 8bitters in max 64K range.

And for anything else, there is always cortex-m.

And in-between are 16bitters.

It's been said that 16 bits is a sweet spot (code density, classic C int)

XMEGA was advertised as 8/16b; XMEGA AVR have a 24b address space.

AVR16 anyone?

Merge the AVR and PIC24 camps?  (best of both)

 

PIC32 can compete against arm Cortex-M.

A concern is the sale of MIPS.

 

Imagination Technologies

Completion of sale of MIPS

25th October 2017

https://www.imgtec.com/news/press-release/completion-of-sale-of-mips/

http://www.microchip.com/forums/FindPost/1023282 by wdy

(post #12)

...

How else would the evolution be kept if everybody jumped on the hyped ARM bandwagon?
...

Eggs in two baskets.

 

Edits: link target, #12

 

 

Modern 8bitters are a good deal 16bitters as well.

16bit is hard to justify without going beyond the 64K space. But then, the easier way is just 32bit.

In my view, a true in-between 16bitter would have 16bit registers and 32bit address range with register pairs as indexes. But these days it seems that just a plain 32bit cpu may be simpler.

 

Cortex-m was just an example. I'm sure one can come with a better 32bit cpu (for example, a CISC one).

Competition.

 

 

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"Dare to be naïve." - Buckminster Fuller

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rammon wrote:
48pin LQFP 0.5mm pitch, 41 i/o (wow!), ...
The least pin count version is in SSOP for 23 I/O (mega4808)

Microchip

megaAVR® Microcontrollers

ATmega4809 Family

http://ww1.microchip.com/downloads/en/devicedoc/30010170a.pdf

(bottom of last page for packages)

"Dare to be naïve." - Buckminster Fuller

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ETA late May 2018 for mega4809 and board :

http://new.microchipdirect.com/product/search/all/ATmega4809

via

http://www.microchip.com/wwwproducts/en/atmega4809

 

Samples may be available from a Microchip sales office :

http://www.microchip.com/distributors/SalesHome.aspx

 

"Dare to be naïve." - Buckminster Fuller

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js wrote:
...  but no datasheet?? surprise
Preliminary datasheet and manual arrived today :

Microchip

ATmega3209/4809 – 48-pin Data Sheet

megaAVR® 0-series

http://ww1.microchip.com/downloads/en/DeviceDoc/40002016A.pdf (774KB)

Microchip

megaAVR® 0-Series

Manual

http://ww1.microchip.com/downloads/en/DeviceDoc/40002015A.pdf (2.8MB)

via http://www.microchip.com/wwwproducts/en/atmega4809

 

Clock Controller :

Main Clock Features: – Safe run-time switching

Table 5-15. External Clock Characteristics

...

Change in period from one clock cycle to the next, 20% max

5.9 I/O Pin Characteristics

...

Rise time, 1.5ns typ (5V, 20pF)

...

Fall time, 1.3ns typ (5V, 20pF)

 

Edits: main clock, rise & fall times

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Tue. Feb 27, 2018 - 02:48 AM
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Sampling removed.

ETA updated :

  • board 12-Mar-2018 now
  • mega4809 QFP 28-May-2018 now

http://new.microchipdirect.com/product/search/all/ATmega4809

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Sun. Mar 4, 2018 - 01:10 AM
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http://packs.download.atmel.com/#collapse-Atmel-ATmega-DFP-pdsc

1.2.209 (2018-02-19)

Corrected reset pin configurations and changed PORTMUX signal names for ATmega4809, ATmega4808, ATmega3209 and ATmega3208.  ...

 

"Dare to be naïve." - Buckminster Fuller

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48-pin QFN/TQFP! Why? It doesn't exist in my PCB package so I will need to make one up if ever I want use them chips.
 

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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js wrote:

48-pin QFN/TQFP! Why? It doesn't exist in my PCB package so I will need to make one up if ever I want use them chips.

What are you waiting for, get to it!

"I may make you feel but I can't make you think" - Jethro Tull - Thick As A Brick

"void transmigratus(void) {transmigratus();} // recursio infinitus" - larryvc

"It's much more practical to rely on the processing powers of the real debugger, i.e. the one between the keyboard and chair." - JW wek3

"When you arise in the morning think of what a privilege it is to be alive: to breathe, to think, to enjoy, to love." -  Marcus Aurelius

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Well I AM semiretired, so don't really care much for the extra stress. cheeky

 

And 0.5mm is just about out of my visual comfort, I can do it if I have to otherwise it's all up to the younger generation.

 

Just finished testing and calibrating 500 boards, I can now restart on the next crop of vegies for winter. Much less stressful.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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js wrote:
Well I AM semiretired, so don't really care much for the extra stress. cheeky
The more I say that I am semi-retired, the more my wife keeps proving me wrong!wink

"I may make you feel but I can't make you think" - Jethro Tull - Thick As A Brick

"void transmigratus(void) {transmigratus();} // recursio infinitus" - larryvc

"It's much more practical to rely on the processing powers of the real debugger, i.e. the one between the keyboard and chair." - JW wek3

"When you arise in the morning think of what a privilege it is to be alive: to breathe, to think, to enjoy, to love." -  Marcus Aurelius

Last Edited: Tue. Feb 27, 2018 - 09:41 AM
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Interesting chips. A quick datasheet skim shows...

 

3/4 USARTs, you even get 3 in the 28-pin SSOP

5V operation

No external high-speed crystal option. It's 32k or ext cll only

Internal 16MHz or 20MHz, fuse selectable

The dataspace mapped code implies that 48k will probably be the code limit

6k SRAM

11 choices of main clock prescaler

 

 

[E2A]

Hmmm, no PTC channels in a clear distinction to the tiny1 series.

#1 This forum helps those that help themselves

#2 All grounds are not created equal

#3 How have you proved that your chip is running at xxMHz?

#4 "If you think you need floating point to solve the problem then you don't understand the problem. If you really do need floating point then you have a problem you do not understand." - Heater's ex-boss

Last Edited: Tue. Feb 27, 2018 - 09:06 AM
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Though doesn't answer your question (IIRC Rimu), the footprint for TQFP-48 may be in KiCad :

https://github.com/KiCad/kicad-footprints/blob/master/Package_QFP.pretty/TQFP-48_7x7mm_P0.5mm.kicad_mod

 


Rimu PCB

http://www.alpro.pl/hs/rimuuk.html

http://kicad-pcb.org/

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Tue. Feb 27, 2018 - 01:21 PM
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Brian Fairchild wrote:
Hmmm, no PTC channels in a clear distinction to the tiny1 series.
PTC is also in PB megaAVR.

 

"Dare to be naïve." - Buckminster Fuller

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Maybe there will be a mega-1 series with PTC?

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PTC?  don't ya just love TLA's! 

 

 

Jim

 

Click Link: Get Free Stock: Retire early!

share.robinhood.com/jamesc3274

 

 

 

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TLA's FTW!

 

edit: The PTC is the "peripheral touch controller".

Last Edited: Tue. Feb 27, 2018 - 03:31 PM
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Microchip Technology Inc

Microchip

Press Release

Digital Control Meets Intelligent Analog to Streamline Design

Simplify development of traditionally complex designs with new PIC® and AVR® families featuring Core Independent Peripherals and Intelligent Analog

Chandler, Arizona, Feb. 27, 2018

https://www.microchip.com/en/pressreleasepage/digital-control-meets-intelligent-analog

...

The new PIC16F18446 family of microcontrollers are ideal components for use in sensor nodes.

...

 

The introduction of the ATmega4809 brings a new series of megaAVR® microcontrollers that were designed to create highly responsive command and control applications. 

...

The ATmega4809 has been selected to be the on-board microcontroller of a next-generation Arduino board.

...

 

Development Tools

...

Rapid prototyping with the ATmega4809 is supported by the ATmega4809 Xplained Pro (ATmega4809-XPRO) evaluation kit. 

...


https://plus.google.com/+MicrochipTech/posts/K7z8yfvoJza

 

"Dare to be naïve." - Buckminster Fuller

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The ATmega4809 has been selected to be the on-board microcontroller of a next-generation Arduino board.

 

That is really sad news if they run 20MHz with +-2% :( 

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sparrow2 wrote:

That is really sad news if they run 20MHz with +-2% :( 

 

For not much money they could put a crystal oscillator on the board.

#1 This forum helps those that help themselves

#2 All grounds are not created equal

#3 How have you proved that your chip is running at xxMHz?

#4 "If you think you need floating point to solve the problem then you don't understand the problem. If you really do need floating point then you have a problem you do not understand." - Heater's ex-boss

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These chips can only take a 32kHz crystal or an external clock generator. So you either calibrate the internal oscillator based on a 32kHz crystal in software, or use a clock generator, which is more expensive than a simple crystal.

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El Tangas wrote:

...or use a clock generator, which is more expensive than a simple crystal.

 

Surprisingly cheap in quantity and from China.

#1 This forum helps those that help themselves

#2 All grounds are not created equal

#3 How have you proved that your chip is running at xxMHz?

#4 "If you think you need floating point to solve the problem then you don't understand the problem. If you really do need floating point then you have a problem you do not understand." - Heater's ex-boss

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But still cheaper to use a 328PB and then only run 16MHz. (about same price 328P @ 20MHz).

This chip also only have 256 Byte EEPROM, registers aren't memory mapped , so there are many changes.

 

 

  So you either calibrate the internal oscillator based on a 32kHz crystal in software

But the step size in speed @20MHz are big, so even perfect setting will not be better than about 1%.

 

And yes for the UART it can be taken care of , and for long time just use the RTC, but just a lot of changes.  

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Oh, ok I see, the steps are about 400kHz so you can never calibrate better than ± 1%.

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Don't get me wrong it's a good chip for the price, just not only good things compared to a 328P.

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New Microchip announcement on this here on the Freaks Forum, today.

 

So Microchip, back in the day when a new product was release Atmel would sometimes send out a bunch of the chips, kits, or boards to a number of AVR Freaks members.

I recall receiving a security kit, and the RZ Raven kit, and perhaps a couple others over the years.

 

The up side to this plan, no doubt written off to marketing, was that the new hardware was instantly in the hands of a number of experienced users who were very familiar with the IDE and with how things usually work, and who could take the new hardware for a test drive and quickly turn up any chip die errors, or data sheet errors, before the Revision B chip design was committed.

 

Besides the free "Beta-testing" (of a released product...), there was also, of course, a lot of free publicity on the new product.

 

 /<Hint hint>

 

JC  wink

 

 

 

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DocJC wrote:
New Microchip announcement on this here on the Freaks Forum, today.
Late too, already in post #34 above.wink

"I may make you feel but I can't make you think" - Jethro Tull - Thick As A Brick

"void transmigratus(void) {transmigratus();} // recursio infinitus" - larryvc

"It's much more practical to rely on the processing powers of the real debugger, i.e. the one between the keyboard and chair." - JW wek3

"When you arise in the morning think of what a privilege it is to be alive: to breathe, to think, to enjoy, to love." -  Marcus Aurelius

Last Edited: Wed. Feb 28, 2018 - 10:28 PM
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"Late" is relative.

Time is in someways meaningless.

 

The press release and social media threads were created approx 1200 MT which is approx 2000 CET likely after Microchip Norway COB.

Having 8-bit design centers around the world is good ... unless a director or executive has your mobile contact information wink

 

"Dare to be naïve." - Buckminster Fuller

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Microchip Technology Inc

Microchip

Product Change Notification - SYST-26JZNY375 - 28 Feb 2018 - ERRATA - megaAVR® 0-series Errata Errata Document Revision

http://www.microchip.com/mymicrochip/NotificationDetails.aspx?pcn=SYST-26JZNY375

...

Description of Change: Initial release of the document.
...

Attachment(s):

megaAVR 0-series Errata

...

 

"Dare to be naïve." - Buckminster Fuller

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data sheet sec 7.5.6:

For a write operation, the low byte of the 16-bit register must be written before the high byte. ??!!??

 

Is this chip different than other AVR chips (such as a mega88pa):

To do a 16-bit write, the high byte must be written before the low byte. For a 16-bit read, the low byte must be read

before the high byte.

 

Not sure if this means anything...maybe it implies a direct write, rather than a sequence of steps...I hope the program can write to the eeprom1

 

When in the dark remember-the future looks brighter than ever.

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ETA late May 2018 for mega4809 and board :

http://new.microchipdirect.com/product/search/all/ATmega4809

why is the board $38, while this board is $8.88:

http://www.microchip.com/Developmenttools/ProductDetails.aspx?PartNO=ATMEGA328PB-XMINI

 

Hope some Chinese versions appear

 

 

When in the dark remember-the future looks brighter than ever.

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16 bit access has been changed since the xmega series.
Writing from program to EEPROM is possible via NVMCTRL. This is also as usual.

 

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avrcandies wrote:

ETA late May 2018 for mega4809 and board :

http://new.microchipdirect.com/product/search/all/ATmega4809

why is the board $38, while this board is $8.88:

http://www.microchip.com/Developmenttools/ProductDetails.aspx?PartNO=ATMEGA328PB-XMINI

 

Well, one is xplained "pro", the other "mini".

 

avrcandies wrote:

Hope some Chinese versions appear

 

According to the Microchip press release linked in post #34, a new version of Arduino will have this chip. I'm sure Chinese copies will follow in due time.

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Well, one is xplained "pro", the other "mini".

what does that mean?  $38 vs $9...what do you get for the difference? 

When in the dark remember-the future looks brighter than ever.

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16 bit access has been changed since the xmega series.

do you know when/where (has that been specifically mentioned)?  There have been some datasheets that have been in error 

When in the dark remember-the future looks brighter than ever.

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