What is SAMD11?

[jakubdatel]

Hi,

I would like to make my own PCB with Atmega4809 - as a copy of Arduino Nano Every.

Could you explaint to me, what is chip SAMD11 and how to work with it?

I understand it is a USB to serial port converter, but how to use it? How to upload firmware to SAMD11? How to connect SAMD11 to PC and Atmega? What are the steps?

Thank

[pert]

I moved your topic to an appropriate forum category @jakubdatel.

In the future, please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.

This is an important part of responsible forum usage, as explained in the "How to get the best out of this forum" guide. The guide contains a lot of other useful information. Please read it.

Thanks in advance for your cooperation.

[ptillisch]

Hi @jakubdatel

@jakubdatel

I would like to make my own PCB with Atmega4809 - as a copy of Arduino Nano Every.

From the questions you ask, it seems you might be quite new to this sort of thing. If you only want a board, I think you'll find that buying a Nano Every is the best way. The price is quite reasonable, especially if you buy the three pack.

If you are really interested in making a DIY Arduino board, I would recommend starting with an ATmega328P-based board. There are many tutorials about this. I can recommend this one to get started:

Gammon Forum : Electronics : Microprocessors : How to make an...

@jakubdatel

I understand it is a USB to serial port converter

That is only one of the functions it serves. The other one is to act as a UPDI programmer used to flash the sketch binaries you upload to the board.

@jakubdatel

How to upload firmware to SAMD11?

Instructions are available here:

Reset Nano Every via 1200 Baud touch

OK, well it looks like you have things fairly well worked out, but I'll provide the instructions anyway for the benefit of others who are interested in the subject: Install MuxTO boards platform Since Arduino has not provided Boards Manager installation support, it is necessary to do a manual installation of the boards platform for the "MuxTO" chip: Select File > Preferences from the Arduino IDE menus. Take note of the path shown in the "Sketchbook location" field. Click the Cancel button. R…

@jakubdatel

How to connect SAMD11 to PC and Atmega?

See the schematics and board design files provided by Arduino:

https://docs.arduino.cc/hardware/nano-every#resources

[jakubdatel]

Thank you!

You are right, I am new. I know Nano Every and I used it in projects, but I would like to make a PCB with microcontroller and other parts on one PCB.

Thanks for the links...

I would like to know (in future) how SAMD11 works, how to program it and how to use as UPDI programmer....

[ptillisch]

You are welcome. I think the ATSAMD11 family are very interesting because they are available in an easy to solder SOIC package and have pretty good support from the Arduino ecosystem.

It is unfortunate that there isn't good availability of a reasonably priced development board for this chip. I was thinking using this ATSAMD11-based debug probe as a dev board might be the best available option:

CMSIS-DAP Compliant SWD Debugger by Alex Taradov on Tindie

Not ideal due to the 0.05" pitch header, but the price is reasonable and the board is open source hardware (and the seller has also made significant contributions to open source software relevant to the Arduino community). And it's also very good for its primary intended purpose as a debug probe as well, so it can always be put to use in the end!

[jakubdatel]

OK, thank you!