Atmega16u2 arduino ide

Atmega16u2 arduino ide

Перед вами обе стороны Arduino UNO R3

Плата Arduino UNO R3 состоит из:

1. Микроконтроллер ATmega328P в качестве главного процессора.

2. Микроконтроллер ATmega16U2 для связи с компьютером через USB порт.

3. USB разъем для загрузки программ и подачи питания на плату.

4. Разъем для подключения от внешнего источника питания.

5. ICSP разъем для прошивки ATmega16U2.

6. ICSP разъем для прошивки ATmega328P.

8. Шина аналоговых входов.

9. Две шины цифровых входов-выходов

10. Кнопка сброс (RESET)

11. Светодиод питания.

12. Светодиоды передачи данных по UART (RX, TX).

13. Светодиод подключенный к 13 контакту платы.

Характеристики платы Arduino UNO ATmega328P ATmega16U2.

Микроконтроллер ATmega328P
Тактовая частота 16 МГц
Напряжение питания от USB 5 вольт
Напряжение питание через разъем для внешнего
источника питания или контакт Vin 6-20 вольт
Цифровые входы/выходы 20
Выходы ШИМ 6
Аналоговые входы 6
Максимальная нагрузка на вход/выход 40 мА
Максимальная нагрузка на выход 5v 500 мА
Максимальная нагрузка на выход 3.3v 50 мА
Память для хранения программ (Flash) 32 Кб
Оперативная память (RAM) 2 Кб
Энергонезависимая память (ROM) 1 Кб
SPI есть
I2C он же TWI есть
Размер платы 68.6 х 54.3 мм
Габариты всего устройства 74.8 х 54.3 х 14 мм
Вес платы 25 г

Есть так же AREF опорный аналого-цифровой преобразователь напряжения.

Для того, чтобы этот пин заработал, вы должны перед использованием функции analogRead(); запустить функцию analogReference();

Возможно, кто-то назовет эти характеристики скромными, но этого вполне достаточно, чтобы построить небольшого робота, систему умный дом, или даже фрезерный ЧПУ станок, которым можно будет управлять в ручном режиме, с помощью компьютера, или андроид устройства.

Хочу обратить ваше внимание на то, что некоторые платы китайского производства на отрез отказываются работать от внешних источников питания, или если работают то не корректно!

Запустить приложение Arduino IDE (подойдет любая версия).

Скачать приложение Arduino IDE можно по ссылке https://www.arduino.cc/en/main/software

Во вкладке Инструменты/Плата: выберите пункт “Arduino/Genuino Uno”

Подключите Arduino UNO к компьютеру, с помощью USB кабеля.

Используйте для прошивки короткий кабель, который идет в комплект с платой! Потому что при использовании кабеля длинной более 30 сантиметров могут возникать помехи, из-за чего загрузка скетчей будет не возможна!

Во вкладке Инструменты выбрать порт, к которому подключена плата Arduino UNO.

В моем случае это COM7, у вас может быть другой! Выберите тот который появился при подключении платы!

Теперь откройте тестовый скетч во вкладке Файл/Примеры/Basics/Blink

Или скопируйте этот скетч, и вставьте его в пустое окно, приложения Arduino IDE.

В скетче прописана задержка 1 секунда delay(1000); между командами, включить и выключить светодиод, можете отредактировать его на свое усмотрение, и нажмите загрузить.

Скетч загрузится, и на плате будет мигать светодиод, с той периодичностью которую вы указали в скетче.

Видео версия обзора платы Arduino UNO R3 ATmega328P ATmega16U2

Творческая мастерская Мастер Колотушкин 2022

Проекты на базе Arduino для начинающих, электронные самоделки своими руками.

Источник

jj1bdx/arduino-atmega16u2

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README.md

Arduino ATmega16U2 USB chip firmware

  • hardware/arduino/avr/firmwares/atmegaxxu2 at https://github.com/arduino/Arduino
  • firmware/atmega16u2 at https://github.com/Pinoccio/hardware-pinoccio
  • The makefile flags set for Uno Rev 3
  • The LUFA version is 100807, as in the hardware-pinoccio repository. This version is required for both DFU and USB serial firmware.

Notes excerpted from the Arduino firmware distribution

  • The arduino-usbdfu directory contains the DFU bootloader on the 16U2
  • The arduino-usbserial directory contains the actual usb to serial firmware
  • Both should be compiled against LUFA 100807

To burn a hex file:

Notes on USB Vendor IDs (VID) and Product IDs (PID)

The arduino-usbdfu project uses Atmel’s VID and MCU-specific PIDs to maintain compatibility with their FLIP software. The source code to the arduino-usbserial project includes Atmel’s VID and a PID donated by them to LUFA. This PID is used in LUFA’s USBtoSerial project, which forms the basis for arduino-usbserial.

According to the LUFA documentation, this VID/PID combination is:

«For use in testing of LUFA powered devices during development only, by non-commercial entities. All devices must accept collisions on this VID/PID range (from other in-development LUFA devices) to be resolved by using a unique release number in the Device Descriptor. No devices using this VID/PID combination may be released to the general public.»

The production version of the arduino-usbserial firmware uses the Arduino VID. This is only for use with official Arduino hardware and should not be used on other products.

Источник

Upgrading Firmware of the Arduino Due Programming Port 16U2

LAST REVISION: 10/05/2022, 01:00 PM

Introduction

Behind the Arduino Due Programming port there is an AVR microcontroller (ATmega16U2) which converts the USB signals coming from the computer to the first serial port of the SAM3X. In this tutorial you will update the ATmega16U2 firmware using an Arduino UNO or Mega as an AVR-ISP (in-system programmer).

Instructions

To use your Arduino board to burn a bootloader onto an AVR, you need to follow a few simple steps.

1. Open the ArduinoISP sketch (in Examples) in the Arduino IDE.

2. Select the items in the Tools > Board and Serial Port menus that correspond to the board you are using as the programmer (not the board being programmed).

3. Upload the ArduinoISP sketch.

4. Connect a 10uF (micro Farad) capacitor between the GND and RESET pin.

5. Connect the following pins from the Arduino UNO (or Mega) to the ATmega16U2 ICSP connector:

UNO Mega 16U2 ICSP
SCK 13 52 3
MISO 12 50 1
MOSI 11 51 4
Reset 10 10 5
GND GND GND 6
+5V 5V 5V 2

The Pins of the Due board

The Arduino Due will take power from the Arduino UNO set as AVR programmer. If you want further details on the connections between the UNO/Mega and the ICSP connector of the target please look this tutorial: Arduino as AVR-ISP.

Upgrade the Firmware Using Avrdude

To upgrade the firmware you need to use a command line tool called «avrdude», that is already included inside your IDE folder. You find it at the following path:

The firmware to upload on the 16U2 is in a binary format that has the .hex extension.

Linux and Mac

First thing to do is to go to the directory that contains the avrdude tools that comes with the IDE. For doing that, open a terminal window and type:

the path to reach the Arduino directory depends on where you placed it. Then you can execute the avrdude tool specifying all the parameters you need to flash the firmware. Here is the complete line:

Windows

First thing to do is to go to the directory that contains the avrdude tools that comes with the IDE. For doing that open a command prompt window clicking on Start and typing then press enter.

Once the command prompt is open should display a row like this: then type the following command to move inside the Arduino folder (it depends where you placed it): .

the path to reach the Arduino directory depends where you placed it. Then you can execute the avrdude tool specifying all the parameters you need to flash the firmware. Here is the complete line:

Источник

Loading Arduino Bootloader to brand new ATMEL Microcontroller

This article is written as a guide to loading an Arduino bootloader or firmware onto a brand new ATMEL microcontroller IC chip.

When you first purchase a legitimate ATMEL ATMEGA16U2 chip, it is actually loaded with a default DFU firmware. If you did not purchase the microcontroller from the legitimate source, there might not be any firmware pre-loaded inside. In this case, you can only load the bootloader firmware using the ATMEL ICSP programmer method.

If you built the basic USB circuit using the ATMEL microcontroller and plugged it into your computer’s Windows Operating System (example Win7), you should be able to see a USB device name “ATmega16U2” under a folder libusb-win32 devices in the Win7 Device Manager.

Basic USB circuit for ATMEGA16U2

Using the ATMEL FLIP software, you will be able to load firmware or bootloader using its default ATMEL DFU bootloader. You can download this FLIP software from ATMEL website. Or you can download here,

  • JRE – Flip Installer – 3.4.7.112.exe, (21MB, updated August 2012), FLIP 3.4.7 for Windows (Java Runtime Environment included)

Uploading Arduino USB Serial Firmware via FLIP

  1. Plug the USB circuit to your computer. You should see the ATmega16U2 device in the Win7 Device Manager. This is the default DFU firmware loaded in the ATMEGA16U2 microcontroller chip. It is also known as the DFU mode.
  2. Install and execute ATMEL FLIP software.
  3. Select the microcontroller. Click “Device”>”Select…”, or use the shortcut key +S. Select the microcontroller “ATMEGA16U2”.
  4. Select the communication. Click “Settings”>”Communication”>”USB”, or use the shortcut key +U.
  5. A dialogue box may appear. Then click open.
  6. Download this USB serial firmware for ATMEGA16U2. For ATMEGA8U2, you can download the USB serial firmware here.
    • Arduino-usbserial-atmega16u2-Uno-Rev3.hex (11Kbyte, for ATMEGA16U2)
    • Arduino-usbserial-uno.hex (11Kbyte, for ATMEGA8U2)
  7. Load the firmware on the FLIP software. Click “File”>”Load HEX File…”>”Arduino-usbserial-atmega16u2-Uno-Rev3.hex”
  8. Ensure the check box is checked. “Erase”, “Program” and “Verify”
  9. Click “Run”.
  10. Once the firmware is loaded, you can unplug the USB connection and plugged it back to your computer. You should be able to see in your device manager as “Arduino Uno” under the section “Ports (COM & LPT)” instead of the previous “ATMEGA16U2” device.
  11. The ATMEGA16U2 is now loaded with the USB serial firmware which is used in a typical Arduino UNO board. Your ATMEGA16U2 microcontroller is now a USB serial (CDC) or USB to serial communication converter. The same converter IC chip used in Arduino UNO board.

Upload DFU Bootloader to brand new ATMEL USB Microcontroller

For the ATMEL microcontroller which does not have the default DFU firmware pre-load into it, you can load the following DFU hex file for the respective ATMEL microcontroller chip.

Since the microcontroller does not have a bootloader, the only way to load this DFU to the microcontroller via an ATMEL ICSP programmer. The instruction guide for the uploading of a firmware using an ICSP programmer can be found here.

Upload Arduino Bootloader into ATMEGA328P Microcontroller

For the ATMEL Microcontroller ATMEGA328P used in Arduino UNO, the Arduino bootloader can be upload using an Arduino ICSP programmer with the Arduino IDE (integrated development environment) Software.

  • Run the Arduino IDE software.
  • Select “Arduino UNO” from the Tools > Board menu.
  • Select “ArduinoISP” from Tools > Programmer (depending on the programmer that you are using)
  • Run Tools > Burn Bootloader

Now your ATMEGA328P microcontroller is loaded with the Arduino bootloader firmware.

Take Note for ATMEGA328 Microcontroller

Uploading of bootloader for ATMEGA328 (signature ID 0x1e 0x95 0x14 ) is different from ATMEGA328P (signature ID 0x1e 0x95 0x0F ).

Check out the following webpage if you want to upload the bootloader to ATMEGA328.

Источник

Updating the Atmega8U2 and 16U2 on an Uno or Mega2560 Using DFU

LAST REVISION: 10/05/2022, 01:00 PM

The ATmega16U2 chip on your Arduino board acts as a bridge between the computer’s USB port and the main processor’s serial port. Previous versions of the Uno and Mega2560 had an Atmega8U2. It runs software called firmware (so named because you couldn’t change it once it had been programmed in the chip) that can be updated through a special USB protocol called DFU (Device Firmware Update).

Here’s how to update the firmware on your 16u2 in a few steps.

Check Whether You Need to Update the Firmware

The Arduino Uno and Mega 2560 have been shipping with the updated version of the ATmega16u2 firmware. To check which version of the firmware is on your board, connect it to your computer and follow the directions for your operating system:

  • Windows (before 7): locate the board in the Device Manager (it should be under Ports), right click on it and select «Properties»; in the resulting dialog, click on «driver details» in the «Driver» tab («Details» in Windows 7). In one of the properties, you should the VID, PID, and the revision number.
  • Mac OS X: run the System Profiler application (e.g. by selecting «About This Mac» from the Apple menu and clicking the «More Info. » button); go to the USB sheet and click on the item for the Arduino board. The firmware version is listed as «version» (e.g. 0.01 for rev. 0001).

Download a DFU Programmer

This is the software that will update the code :

Windows: Download Atmel’s flip programmer from here

Mac: Install MacPorts following these instructions: Once MacPorts is installed, in a Terminal window, type

NB: If you’ve never used sudo before, it will ask for your password. Use the password you login to your Mac with. Sudo allows you to run commands as the administrator of the computer

Linux: from a command line type

depending on your distribution

Download Updated Firmware

The latest version is here

Choose the version that is suitable for your board, either arduino-usbserial/Arduino-usbserial-uno.hex or arduino-usbserial/Arduino-usbserial-mega.hex

The firmware is also located with the Arduino software in the /hardware/arduino/firmwares/arduino-usbserial folder. On OSX, right-click or command-click on the Arduino application and select «show package contents» to find this folder.

If Your Board is Arduino UNO R1

You’ll need to solder a 10k resistor (Brown-Black-Orange) at the back of your board in the same location as this picture.

The back of UNO R1

Connect the Arduino to Your Computer With a USB Cable

Just like you do whenever you’re programming it.

Reset the 8u2 or 16u2

To do this, briefly bridge the reset pin with the ground. The pins are located near the USB connector, as shown in this picture. Connect them briefly with a piece of wire.

Front of UNO R1

To verify you have reset the 8u2 or 16u2 chip: In the Arduino programming environment, check the list of serial ports. The serial port for your board should no longer show up.

Program the Chip

Windows: use flip to upload the hex file to your board

Mac & Linux: from a terminal window, change directories to get into the folder with the firmware. If you saved the firmware in your downloads folder on OSX, then you might type

Once there, type:

When this command is done and you get a command prompt again, type

If your board has an atmega8u2 type atmega8u2 instead of atmega16u2 in the command lines above.

Unplug Your Board and Plug It Back In

Your board should be ready and up to date. You can check this by looking in the serial port menu of the Arduino software. Your port should re-appear.

Using Other Firmware

The 8u2 and 16u2’s flexibility allows for other firmware so your board can appear as a different USB device (MIDI controller, HID, etc.). See the tutorials below for additional information.

Источник

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