Come Join Us (MPLAB Now Supports AVRs)

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So for me dropping AVR-GCC support, or just not updating it, means I will probably not ever switch to MPLAB or use new parts that are currently not supported. In fact, it's time to consider alternatives, maybe ARM since then I'm not tied to one vendor.

 

They aren't dropping AVR-GCC. They just moved AVR-GCC to be packaged with the rest of XC8 and put a wrapper in XC8 to put in front of avrgcc in MPLAB to hold -O2 and -O3 for ransom.

Last Edited: Fri. Aug 17, 2018 - 02:50 PM
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clawson wrote:

mroszko wrote:
What you are "doing wrong" is not using -O1
I fear you have entirely missed my point. I deliberately used (and used color highlighting to make the point) -O0 to show what you can get from a C compiler that is not optimising. I'm not saying this is a "good thing". In fact if you look at my signature then point #4 has been saying this very thing for more than a decade! But what I'm saying is that a compiler that makes no attempt to optimise can be ATROCIOUS in its code generation (gcc is!). The suggestion had been that the difference between optimisation on/off might be a 5..10% issue. My point was that it might be a case of code bloated by a factor of 10 or 20 or worse.!!

 

So no optimisation if not a "minor inconvenience" - it is "totally unusable".

 

I imagine that people who charge money to have optimisation switched on know this cheeky

 

Ah sorry, completely misread it. I thought you were showing that Microchip was breaking avrgcc ;)

 

For quite some time, XC8 free mode was intentionally adding extra jmps and nops to a ridiculous degree, like beyond acceptable for no optimization. I remember seeing some university professor throwing a fit they are dropping PICs from their cirriculum as they couldn't begin to explain to students the absurdity of the output.

Microchip did finally.....remove that gimping a year later (1.4 I think?)

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awneil wrote:

mojo-chan wrote:
If you go over the Microchip forums you will see a night and day difference. No real community

I think you can see somewhat similar between AVRFreaks and the other so-called "communities" here?

 

As someone said (complained, actually) in another manufacturer's forum: there is a big difference between just opening a forum, and actually building a community.

 

Sometimes I take a look at the ARM forum, but the questions are just not interesting to me, most of the time. Stuff about ASF and Atmel Start that apparently are full of bugs? Booooriiiing! I don't care in the least about that. That's a job for Atm... Microchip staff.

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mroszko wrote:
For quite some time, XC8 free mode was intentionally adding extra jmps and nops to a ridiculous degree, like beyond acceptable for no optimization.

I remember seeing some university professor throwing a fit they are dropping PICs from their cirriculum as they couldn't begin to explain to students the absurdity of the output.

Microchip did finally.....remove that gimping a year later (1.4 I think?)

 

Hehe, nothing like throwing daylight on the sneaky tricks, to have them quietly dropped ... :)

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MPLAB X 5.05

from its 'Readme for MPLAB X IDE.htm'

'11 What's New in v5.05' :

  • A reminder that versioned device information packs are available. "Packs can be found under <MPLAB X IDE install directory>\v5.xx\packs"
  • MPLAB Snap

 

'15.6 IDE Issues' (SSR, Description, Devices Affected) :

  • MPLABX-3605, debugWIRE is nonfunctional in MPLAB PICkit 4, mega328P
  • MPLABX-3642, TPI currently not supported, some tinyAVR

 


http://www.microchip.com/mplab/mplab-x-ide (Downloads tab, Release Notes)

https://www.avrfreaks.net/forum/mplab-snap

 

"Dare to be naïve." - Buckminster Fuller

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  • MPLAB Snap

 

Interesting dongle, based on SAM E70 also. Only about $15....

 

What I'm not clear about is how can they do avr SPI programming with only two pins and reset.... surprise

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Wow, I'm surprised. After doubling the price of the debuggers overnight following the take-over of Atmel I thought we would be stuck with over-priced tools forever.

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The presentation video says it has an 8 pin connector.

Yes, $15 is cheap indeed, I suppose it's their way of nudging people away from AS7 to MPLab. It seems to be working, since I feel an urge to buy one, but not now... maybe next time Microchip has a free shipping offer.

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I'm surprised Microchip have not moved to a more efficient programming header yet. Considering Atmel give you full program and debug with one pin these days...

 

At least they seem to have recongized that their own debuggers were crap. The description of the Snap even mentions that you don't have to download a new OS when changing parts (or recover from bricking when it fails).

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One of Microchip's AVR competition is Silicon Labs and their ToolStick.

https://www.silabs.com/products/development-tools/mcu/8-bit/8bit-mcu-accessories/toolstick

 

Another AVR competitor is Texas Instruments MSP430TM and the debugger (eZ-FET with breakouts) on LaunchPad.

http://www.ti.com/tool/msp-exp430fr6989

via https://docs.platformio.org/en/latest/plus/debug-tools/mspdebug.html#boards

 

"Dare to be naïve." - Buckminster Fuller

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Having tried MSP430 I wasn't that impressed. Some stuff is nice like FRAM but the architecture is crusty like the 8 bit PICs.

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Nice is a zero price compiler for a 16b MCU with 20b pointers (FSF MSP430 GCC, TI MSP430 GCC with Mitto Systems) and a multi-platform debugger interface (third party IDE support)

MSP430TM does lack an EBI that's present in some megaAVR, XMEGA AU, and PIC24.

 

https://gcc.gnu.org/onlinedocs/gcc-8.2.0/gcc/MSP430-Options.html#MSP430-Options

http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPGCC/latest/index_FDS.html

via http://www.ti.com/tool/msp430-gcc-opensource

http://gnutoolchains.com/msp430/

http://www.ti.com/tool/MSPDS

 

"Dare to be naïve." - Buckminster Fuller

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So, I installed this MPLab thing to take a look, and it seems familiar. This is a version of NetBeans, right?

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Yes.

MPLAB X Overview

http://ww1.microchip.com/downloads/en/DeviceDoc/51984b.pdf

(page 1, middle of right column)

Open-Source Platform

...

Using Eclipse instead of MPLABX
https://www.microchip.com/forums/m1020117.aspx

 

Edit : Overview

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Tue. Aug 21, 2018 - 04:26 PM
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Nice! Now I'll install the Darcula plugin, I prefer dark background.

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awneil wrote:
Hmmm - so what will that mean for Arduino ... ?
Another tack is Arduino sketch import into MPLAB X.

Arduino has a tool for building sketches that might become a part of MPLAB X.

GitHub - arduino/arduino-builder: A command line tool for compiling Arduino sketches

https://github.com/arduino/arduino-builder

https://github.com/arduino/arduino-builder#arduino-builder-

...

This tool is able to parse Arduino Hardware specifications, properly run gcc and produce compiled sketches.

An Arduino sketch differs from a standard C program in that it misses a main (provided by the Arduino core), function prototypes are not mandatory, and libraries inclusion is automagic (you just have to #include them). This tool generates function prototypes and gathers library paths, providing gcc with all the needed -I params.

...

via

Sysprogs

VisualGDB 5.4 Preview 4 is Out

by Ivan Shcherbakov

August 6, 2018

https://sysprogs.com/w/visualgdb-5-4-preview-4-is-out/

...

 

Arduino Projects

...

This has been made possible due to our open-source fork of the Arduino builder tool that can report the detailed structure of the project and all involved libraries, so VisualGDB knows exactly what it’s dealing with. 

...

VisualGDB 5.4 Preview 4 comes with out-of-the-box support for Arduino devices based on AVR, ARM, ESP8266 and ESP32 architectures.

 

"Dare to be naïve." - Buckminster Fuller

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Is a dark background effective for almost full sunlight conditions?

Reason : shade tree embedded systems design

 

"Dare to be naïve." - Buckminster Fuller

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I don't think so, there are some ticket vending machines here that sometimes get exposed to near total sunlight. The background is dark blue (colour LCD), and very difficult to read.

 

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rammon wrote:

  • MPLAB Snap   Interesting dongle, based on SAM E70 also. Only about $15....

What I'm not clear about is how can they do avr SPI programming with only two pins and reset.... surprise

They also mention i2c and COM connections, so those must be via those other pins, near the MCU

- but the DOCs fail to expand on that ?

 

Does anyone have a Schematic link, or more info on how you can access the listed  i2c/SPI/CDD UART/USART DGI   (did they mean CDC UART ?)

 

 

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http://plugins.netbeans.org/plugin/62424/darcula-laf-for-netbeans

 

from MPLAB X 5.05 Readme :

MPLAB X IDE v3.xx and above is based upon the NetBeans 8.0.1 platform.

"Dare to be naïve." - Buckminster Fuller

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"Dare to be naïve." - Buckminster Fuller

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Hmm, thanks - that's for MPLAB PICkit 4 pinout, and it's not clear if that's 2 headers, or all on one ? ( VTG is pin 2 on both tables )

I was assuming(hoping?) you could run Debug and any mix of i2c/UART/SPI, but maybe it's Debug and one of  i2c/UART/SPI, or is it even Debug on one dongle, and another is needed per i2c/UART/SPI ?

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Who-me wrote:
... it's not clear if that's 2 headers, or all on one ? 
all on one (J4) though there's an un-populated J2 (8 TH like J4)

Who-me wrote:
... Debug and any mix of i2c/UART/SPI, ...?
don't know though it's "[debug] with [DGI]" for MPLAB Snap.

MPLAB Snap Information Sheet

http://ww1.microchip.com/downloads/en/DeviceDoc/MPLAB%20Snap%20In-Circuit%20Debugger%20IS%20DS50002787A.pdf

(page 1, Description, 3rd paragraph)

"Dare to be naïve." - Buckminster Fuller

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gchapman wrote:
all on one (J4) though there's an un-populated J2 (8 TH like J4)

 

Is there a SCH anywhere, that says what J2 does ?

 

The pdf  just says pins 7 & 8 are NC ?

 

Addit:

 

Does anyone have a MPLAB Snap they can check the CDC Baud rates on ?  Curious to know what baud values it can accept/generate ?

Last Edited: Tue. Aug 21, 2018 - 11:39 PM
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Who-me wrote:
Is there a SCH anywhere, that says what J2 does ?
Not yet at

Microchip Technology Inc

Microchip

MPLAB Snap

http://www.microchip.com/developmenttools/ProductDetails/PartNO/PG164100

 

"Dare to be naïve." - Buckminster Fuller

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Testing it out. Tried to import a basic Atmel Studio project and got this:

 

 

It says at the bottom it's not used... Okay... What do you want from me? Went with the default.

 

Project was imported. Build fails with linker errors.

 

No "find all references". Syntax highlighting barely works. No auto-completion or suggestions. No dark mode. Looks like something out of the 1990s. Built on Java.

 

What a load of crap.

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mojo-chan wrote:

(...) No dark mode. (...)

 

Wait, I can help with at least this one. First download this plugin: http://plugins.netbeans.org/plug...

Then install it via "Tools">"Plugins", "Downloaded" tab, "Add Plugins" button.

 

Edit: I imported a couple of AS7 projects successfully. The problem is, compiler and linker settings are not imported, you have to set them manually.

Last Edited: Thu. Aug 23, 2018 - 09:44 AM
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Thanks El Tangas, that made it much better. No need to burn my retina out now. Syntax highlighting seems much better too.

 

The linker settings were imported but are broken somehow:

 

 

I ended up doing it manually because I can't find any documentation on the format of these strings.

 

 

It now compiles and even works. One other issue I found is that it defaults to stupidly long path names, so for example the output file here is "<project dir>/joystick.X/dist/Release/production/joystick.X.production.hex". This might cause path length problems on Windows.

 

I tried importing another project but it gets stuck because there are pre-build events and nothing happens when you click "finish" in the "import project" window. I tried deleting the pre-build stuff in Atmel Studio but MPLAB still failed... I guess there is an empty XML string or something that is confusing it.

 

Unfortunately the editor is terrible. Code browsing and completion features are extremely basic. With the old MPLAB 8 it was so bad that we used to do most of the editing in Visual Studio and just compile with MPLAB. MPLAB X looks like it will be the same, which is very annoying because it's much better if you have debugging in the primary editor. I know it's beta so can forgive the import issues, but the editor has been crap for years with no sign of improvement.

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I know this is a beta version, but I just started and already found 2 bugs. One is that the syntax highlighter doesn't recognize the "constexpr" specifier introduced in C++11; the other one is that when you select "Relax branches" in the compiler options checkbox, nothing actually happens. You need to add "-mrelax" manually to the compiler options.

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Created bug MPLABX-3701 and MPLABX-3702 for these two.

:: Morten

 

(yes, I work for Atmel, yes, I do this in my spare time, now stop sending PMs)

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mojo-chan wrote:

 

The linker settings were imported but are broken somehow:

 

I tried importing another project but it gets stuck because there are pre-build events and nothing happens when you click "finish" in the "import project" window. I tried deleting the pre-build stuff in Atmel Studio but MPLAB still failed... I guess there is an empty XML string or something that is confusing it.

 

 

Could you attach the Atmel Studio project file? 

 

Regards,

Charles

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charla wrote:

Could you attach the Atmel Studio project file? 

 

The one with the linker settings is here: https://github.com/kuro68k/Super...

 

I can't share the other I'm afraid as it belongs to the company. Basically it has some pre and post compilation commands to take a bootloader.o file and link it in to the main application firmware, creating a combined image:

 

Pre:

"$(DevEnvDir)\shellUtils\touch" "$(MSBuildProjectDirectory)\version.c"
"$(ToolchainDir)\avr-objcopy.exe" -I ihex -O binary "$(MSBuildProjectDirectory)\bootloader\Bootloader.hex" bootloader.bin
"$(ToolchainDir)\avr-objcopy.exe" --rename-section .data=.boot,contents,alloc,load,readonly,data -I binary -B avr:106 -O elf32-avr bootloader.bin bootloader.o

Post:

"$(ToolchainDir)\avr-size.exe" -C --mcu=atxmega128a3u MicroPhocus.elf

 

Thanks for looking at this.

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mojo-chan wrote:

charla wrote:

Could you attach the Atmel Studio project file? 

 

The one with the linker settings is here: https://github.com/kuro68k/Super...

 

I can't share the other I'm afraid as it belongs to the company. Basically it has some pre and post compilation commands to take a bootloader.o file and link it in to the main application firmware, creating a combined image:

 

Pre:

"$(DevEnvDir)\shellUtils\touch" "$(MSBuildProjectDirectory)\version.c"
"$(ToolchainDir)\avr-objcopy.exe" -I ihex -O binary "$(MSBuildProjectDirectory)\bootloader\Bootloader.hex" bootloader.bin
"$(ToolchainDir)\avr-objcopy.exe" --rename-section .data=.boot,contents,alloc,load,readonly,data -I binary -B avr:106 -O elf32-avr bootloader.bin bootloader.o

Post:

"$(ToolchainDir)\avr-size.exe" -C --mcu=atxmega128a3u MicroPhocus.elf

 

Thanks for looking at this.

 

Linker Settings is a bug.

 

For the pre-build and post-build event shared here, I am able to successfully import into MPLAB X. 

If possible create a sample project with pre-build and post-build events and share it, that will reproduce the issue.

 

It gives a warning during the import which is valid because the Macros used are specific to Atmel Studio.

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The problem I have is that I can't close the import window. It gets to here:

 

 

And clicking on "Finish" does nothing. I get the same error message about the pre build event action that you do, but can't proceed. If I click anything else like the close button or cancel the project doesn't load.

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Arduino Blog » Announcing the Arduino Command Line Interface (CLI)

by ARDUINO TEAM — August 24th, 2018

https://blog.arduino.cc/2018/08/24/announcing-the-arduino-command-line-interface-cli/

...

[install libraries, build sketches, output JSON, arm and x86/x86_64, multi-platform]

...

 

Getting Started

...

[alpha preview]

...

As usual, it’s open source – but if you’re a company who wants to use it to create a customized tool, you can also contact us for a commercial license.

 

Integrate Arduino Support Into Your Preferred Platform

...

We want you to be able to add Arduino support to whatever development flow you prefer. Whether you use Atom, Eclipse, Emacs, Vim, VSCode, or are even building your own tools, Arduino CLI makes this possible. Let us know what you think!

 

"Dare to be naïve." - Buckminster Fuller

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mojo-chan wrote:

The problem I have is that I can't close the import window.

 

And clicking on "Finish" does nothing. I get the same error message about the pre build event action that you do, but can't proceed. If I click anything else like the close button or cancel the project doesn't load.

 

Could you share the .cproj file ?

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charla wrote:

Could you share the .cproj file ?

 

PM sent.

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following in the footsteps of mbed again!

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillatorhttps://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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mojo-chan wrote:

charla wrote:

Could you share the .cproj file ?

 

PM sent.

 

It looks like one of the Configuration name has space in it due to which you see this behavior. Modify the Configuration name in the project file and import it.

 

<PropertyGroup Condition=" '$(Configuration)' == 'Combined_Bootloader' ">

 

Regards,

Charles

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Thanks... Maybe they can convert spaced to underscores in the importer.

 

I'll try it and see if it builds.

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Debugger Adapter Board (MPLAB ICD 4 and MPLAB PICkit 4 to Atmel-ICE cables and etc) is on an October sale at nearly half off.

microchipDIRECT

DEVELOPMENT TOOL DEALS

https://www.microchipdirect.com/product/DevToolDeals

 

"Dare to be naïve." - Buckminster Fuller

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Is EDBG a part of MPLAB PICkit 4?

Not applicable as there's MDB.

Microchip

Developer Help

MDB: The Microchip Debugger

http://microchipdeveloper.com/mplabx:mdb

MDB, modeled after the popular open source GNU debugger (GDB), is a utility that provides command line access and scripting capabilities for the integrated debugger used by MPLAB® X IDE

...

 

"Dare to be naïve." - Buckminster Fuller

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Microchip logo

Microchip Technology

Press Release

AVR Microcontrollers Now Supported in MPLAB X Integrated Development Environment

Developers new to the AVR architecture can easily begin designs with a unified development platform that crosses multiple operating systems

Chandler, Arizona

Oct. 3, 2018

https://www.microchip.com/en/pressreleasepage/avr-mcus-now-supported-in-mplab-x-ide

...

The majority of AVR MCUs are now beta supported with the release of MPLAB X Integrated Development Environment (IDE) version 5.05, available today from Microchip Technology Inc. (Nasdaq: MCHP). Support for additional AVR MCUs and enhancements will be added in future MPLAB versions. AVR support will continue to be added to Atmel Studio 7 and Atmel START for current and future AVR devices. For more information visit: www.microchip.com/AVRandMPLAB.  

 

...

MCC [MPLAB Code Configurator] can also generate code for specific development boards, such as Microchip’s Curiosity ATmega4809 Nano (DM320115) development board and existing AVR Xplained development boards.

 

[AVR GCC, MPLAB XC8, MPLAB PICkit 4, MPLAB Snap]

 

...

"Traditional AVR MCU programmers can also stay with Atmel Studio 7, as we are continuing to offer new device support, add enhancements and implement bug fixes as needed.” - Steve Drehobl (Microchip VP, 8-bit MCU)

 

Development Support

...

 

Pricing and Availability

...

The ATmega4809 Curiosity Nano board (DM320115) is available today for $10.00. 

...

 


https://www.microchip.com/mplab/mplab-x-ide

Microchip logo

Microchip

ATmega4809 Curiosity Nano

https://www.microchip.com/DevelopmentTools/ProductDetails/DM320115

 

"Dare to be naïve." - Buckminster Fuller

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The ATmega4809 Curiosity Nano board (DM320115) is available today for $10.00. 

You must get these announcements early.

I don't see a "buy" link on that page, and I don't see the board in the microchipdirect store, either.

 

I wonder how Arduino feels about being undersold by their chip provider :-(

 

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westfw wrote:
You must get these announcements early.
(Microchip home page, bottom, right column)

westfw wrote:
I wonder how Arduino feels about being undersold by their chip provider :-(

https://www.microchip.com/wwwproducts/en/ATMEGA4809

(Development Environment tab, bottom)

 

AVR-IOT WG Evaluation Board ( AC164160 )

versus Arduino Uno WiFi rev 2 :

https://www.avrfreaks.net/forum/megaavr-0-series?page=1#comment-2560936

though that's an apples and oranges comparison.

 

"Dare to be naïve." - Buckminster Fuller

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For more information visit: www.microchip.com/AVRandMPLAB.

Was willing to give up an e-mail address at that via

Sign Up for Updates and a Discount Code on Related Evaluation Boards

the discount is 25% until 31-Dec'18 on :

  • mega4809 Xplained Pro
  • mega4809 Curiosity Nano
  • tiny817 Xplained Mini
  • mega324PB Xplained Pro

 

"Dare to be naïve." - Buckminster Fuller

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Still can't get an actual buy-link to the 4809 Xplained Nano - "Product not found" and similar.
 

On the bright side, I was able to use MPLAB to debug code on my Xplained Pro 4809, from my Mac!

 

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Microchip Direct Logo

microchipDIRECT

Part Number: DM320115 - ATmega4809 Curiosity Nano Evaluation kit 

https://www.microchipdirect.com/product/search/all/DM320115

https://www.microchip.com/Developmenttools/ProductDetails/DM320115

 

"Dare to be naïve." - Buckminster Fuller

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