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Questions tagged [bootloader]

Refers to the code burned on the Arduino flash memory that runs every time the board is powered up. It starts the execution of user-loaded programs and allows uploading sketches from a PC through the USB connection. This tag should be used for questions about modifying, changing, uploading the default bootloader.

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2answers
139 views

Standalone Arduino

I have an Arduino Uno and I am using arduino 1.0.5 IDE. I followed he procedures for bootloading an atmega328P-PU on a breadboard using an Arduino Uno from the link: https://www.arduino.cc/en/...
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3answers
553 views

Can i use arduino code, without using arduino board but just using MCU included

I am developing a product, and to ease my job i am planning to use MCU inside the arduino with the library of Arduino. Since all the registers are already defined inside the library, and all required ...
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3answers
4k views

Burn Arduino Bootloader - Atmega8L

I am making an RGB LED project right now using the Arduino UNO board. At this point everything is working fine so I would like to transfer this onto a small microcontroller circuit to be put inside ...
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1answer
228 views

Micro not detected, can't reset

I just picked up a new Arduino Micro for a project, but the first time I tried to upload to it, things went terribly wrong. The USB cable was loose, so the power light kept blinking on and off. When I ...
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2answers
301 views

Improvement security in a domotic project

I recently started with a domotic project, I began creating a lock opening with a RFID currently I'm trying improving the code (I took from http://forum.arduino.cc/index.php?topic=256260) but I have ...
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1answer
744 views

Is it advisable to reload Pro Mini with the bootloader originally designed for UNO to save 1.5 KB flash space?

In order to allow bigger user program size, is it possible and advisable to reload Pro Mini with the boot loader originally designed for UNO. This will save 1.5 KB flash space (UNO boot loader is 0....
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1answer
257 views

Why doesn't the master branch BOSSA work on Arduino Due?

I have downloaded BOSSA for Linux, and have run bossash->scan. I have also tried erasing and resetting the board before scanning. It does not work. According to the Arduino website, the native USB ...
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0answers
22 views

Cannot write lock byte on Arduino Pro Micro

I have an Arduino Pro Micro, with atmega32u4 chip and a caterine bootloader. However, every time I (successfully) flash some program over the USB port, the /dev/ttyACM0 device disappears, and I cannot ...
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0answers
91 views

How to enable auto reset in Arduino Leonardo?

I am trying to program an ATMega32u4 microcontroller through arduino IDE. I have added external oscillator(16Mhz) and capacitors and few other connections according to the Schematic. I had put a ...
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0answers
54 views

ARDUINO PROGRAM

I have a project that consists in measuring the mass of an object with a strain gauge HX711. so I found an interesting Arduino program and the editing that goes with it. but I have a problem, I ...
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1answer
157 views

Arduino New Optiboot Bootloader on custom ATMega328p board, ATMEL Studio and AVRdude [closed]

I am about to ask a kind of complex question due to the number of system parts involved and the system architecture I am planning to use. First of all I have a tiny bit of experience with the Arduino ...
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0answers
83 views

Atmega 32U4 doesn't show on device manager after fuse bits reset

I am finally ready to try setting fuse bits on my ATMega32u4-AU custom board (8Mhz Ceramic Resonators, 3.3V), however, after I set the fuse bits and plug my board to computer, the device manager ...
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1answer
3k views

arduino leonardo avrdude: butterfly_recv(): programmer is not responding

I am having issues uploading new code to an Arduino Leonardo board. This happens after uploading a previous buggy code (e.g. array out of range indexing error). Once I fixed the buggy code, I can ...
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0answers
144 views

Installing Optiboot loader for pro mini 3.3V 8MHz

I have tried to install a better bootloader in some chinese Arduino pro mini boards. I have tried the OptiLoader application via an ArduinoAsISP. I failed in some way. The boards got unstable, I can ...
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0answers
363 views

Will avrdude overwrite the bootloader on my Nano?

I bought an arduino nano (knockoff from Elegoo) and according to the Amazon description it comes with a bootloader. From what I've read, this means that programming can occur over the usb connection ...
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0answers
62 views

COM port problem when uploading bootloader to SAMD21G

I use an ATSAMD21E16B-AU in my circuit and I want to upload the bootloader with the SAM-BA flash programming tool in this official link: http://www.atmel.com/Images/Atmel-42366-SAM-BA-Bootloader-for-...
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597 views

Cannot upload sketches, and loopback test fails, but bootloader is intact and correct

I was using an Arduino Uno for a project, when suddenly it stopped allowing me to upload sketches. I kept getting the error message: avrdude: stk500_recv(): programmer is not responding avrdude: ...
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0answers
4k views

Can't burn bootloader, Says Invalid device signature

I am trying to burn bootloader on an Atmega 328P-PUon breadboard with minimal circuit using Arduino UNO, following up this Arduino Tutorial : https://www.arduino.cc/en/Tutorial/ArduinoToBreadboard (...
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0answers
93 views

Upload custom trinket firmware

I'd like to disable the trinket 10-second bootloader when powered up, so it will just begin running the program. I would still like to be able to press the reset button to re-program it. I found an ...
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0answers
206 views

How do I fix the serial loader on my Pro Mini?

I have an Arduino Pro Mini, 3v3, 8Mhz. I have in the past successfully programmed it over the serial line. I have two others, I can program them over the serial line. I can program the first one using ...
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1answer
855 views

ard-reset-arduino resetting Leonardo/Micro via USB works on OSX, fails on Ubuntu

I'm trying to program a Leonardo (actually a Micro ATmega32U4) via the command line using USB. Schematically, I'm doing ard-reset-arduino followed by a sleep 1 and an avrdude command. This works ...
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2answers
208 views

Atmega8 with Arduino bootloader - wrong serial characters

I recently flashed bootloader of Arduino to Atmega8. Unfortunately I stumbled on a problem I can't solved. I am testing SerialEvent example on Atmega8. I modified it but started debugging it on my ...
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0answers
62 views

Can burn bootloader but not sketches… thoroughly mystified!

I have a custom board designed to be essentially identical to the Arduino Micro (Atmega32u4). I can burn the bootloader (Caterina) and it burns just fine, including the fade-then-slow LED signal that ...
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0answers
436 views

Arduino programming attiny13a

Hello I want to program an Attiny13a with Arduino code. I always have this error when I add repository "no file board.txt" in path. How to successfully configure IDE to able burn on it? I use : Link ...
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0answers
46 views

Is serial modem routine written on the Arduino Leonardo bootloader?

I'm starting with Leonardo and I'm a bit confuse about the serial modem function. As you know on boot the Leonardo for the first 8 seconds wait for a program on the USB port and then it goes in serial ...
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473 views

Leonardo sketch and bootloader hex file combination

Can I combine Leonardo sketch hex file with the Leonardo bootloader hex file? I would like to program blank Atmega32U4 with one shot.
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0answers
106 views

Arduino not responding while trying to flash over BLE

I'm working on wireless uploader for Arduino from iOS devices. I'm using HM-10 BLE module which seems to work ok. PIO 2 is used as DTR for resetting (see A [0x41] T [0x54] + [0x2B] P [0x50] I [0x49] O ...
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0answers
36 views

Having trouble bootloading my Two-Up printer

I am following these instructions to set up my Two-Up 3D printer, and I have no problems all the way up until step 18. The board uses the arduino IDE to burn the bootloader, which is why I am posting ...
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0answers
531 views

Will we be able to burn arduino zero pro's bootloader?

As arduino.org states, the bootloader is pre-burnt by Atmel at the factory. I'd like to know if it will be possible for us to buy "raw" ICs and burn them at home for our own boards, as we do with the ...
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0answers
99 views

is it possible to backup an uploaded program? [duplicate]

I have a cute robot built on Arduino Uno and Ardumoto, and I am trying to reverse engineer it first, and to add some new sensors afterwards. I am stuck at how to deal with its program. I don't have ...
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1answer
219 views

Bootloader only works once with usb to serial module

When programming the Pro Mini using this USB-to-serial adapter the boot loader only works once. After the first programming the programmer is out of sync or not responding. To be able to program the ...
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2answers
3k views

Problem loading sketch to Leonardo

Today I got Arduino Leonardo to replace my Uno. I've tried running one of sketches I use on the Uno, but with no luck. When I start the upload, RX LED on the Leonardo flashes few times, and after ...
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2answers
171 views

How to burn bootloader into arduino uno without using another arduino

I need to bootload my Uno board but I do not have another Arduino at my disposal so how do I bootload without another Arduino board
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3answers
107 views

Is it possible to upload an arduino sketch through the serial port (RX) instead of USB

In another words, is it possible to develop a custom bootloader so sketches can be uploaded via serial connection made using the RX/TX pins and not via the USB connector (I am using Pro Micro boards)? ...
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1answer
234 views

why leonardo bootloader is bigger than UNO?

Apparently leonardo and UNO are very similar boards. However, despite that both have the same flash memory size, Leonardo bootloader is considerably bigger than UNO bootloader (4KB vs 0.5KB). what ...
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2answers
156 views

Programming an ATmega328P by holding it on an Uno's

I was looking at this Uno clone, the Nanino and then happened to read this article on "Manhattan style" circuit design. Anyway, that got me thinking... If I borrowed someone's Arduino Uno, could I ...
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3answers
991 views

Can I place bootloader directly onto Atmega2560 and have USB?

I am working on a prototype device which I am now on my 2nd board iteration and moving away from it being a shield and wired to an arduino mega2560 board. I have used the freely available Arduino ...
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1answer
3k views

avrdude: stk500v2_ReceiveMessage(): timeout with ADDAC VCC

I am getting the above error message uploading the ADDAC VCC, and the only thing that's changed I think is the patch is bigger. Is there a fix for this or will I have to send it back? Hope my ...
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2answers
1k views

Using the ATMega328, from an Arduino UNO in a Standalone configuration, and bootloader - I am really lost

I am really despaired. I have spent a full day to understand this, and it seems that I still don't. I have an Arduino UNO, with an ATMega328, for which I wrote a great piece of code. Later, I have ...
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1answer
38 views

Is it possible to load both the arduino bootloader and a sketch onto an atmega328p via icsp?

i am familiar with uploading an arduino bootloader onto an atmega328p using another arduino via the arduino IDE. i have also installed software 'sketches' using that process which i believe leaves out ...
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3answers
1k views

How can I get my (Arduino) Pro Micro schematic to allow me to program it through GPIO instead of USB

I'm trying this project so far I've got the schematic of a Pro Micro, which is powered through GPIO from a Raspberry Pi Zero, and want to remove the micro usb connection and able to flash it using an ...
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1answer
79 views

using esp8266 feather to burn bootloader on redboard

Is it possible to burn the bootloader of an arduino redboard using an esp8266 feather? whenever i connect my redboard to my pc the ports list on the ide would just be greyed out. I've looked around ...
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3answers
1k views

Can't burn Bootloader on Atmega328P Using Arduino Uno

I'm trying to create an Arduino Uno following the circuit described in the diagram below which I'd based from here. I'd tried this circuit on an Atmega328 PDIP version (with the correct connections ...
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1answer
76 views

Missing arduino bootloader problem?

I have a arduino clone that is not being assigned a /dev/tty by Debian Stretch (Stable). It does have the ch340g chip. I have tried the driver from the manufactures site with no joy. Would the lack ...
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1answer
205 views

Getting boot mode 1.6 error

When I try to upload my script I get this in my serial monitor: ets Jan 8 2013,rst cause:4, boot mode:(1,6) wdt reset The board I am using is Uno + Wifi And this is my sketch: /* * Arduino ...
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2answers
363 views

Burn Bootloader to Chinese Arduino 2560 with AVR ISP programmer

I got my hands on one of these ISP programmer for Atmel AVR microcontroller in USB stick design: Then I selected Progammer > AVR ISP and clicked on Burn Bootloader but it says stk500_recv(): ...
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1answer
132 views

How is interaction with CDC device with no interface endpoints working?

I'm working on uploading to Digispark board. It uses micronucleus bootloader and i can see uploader code. I've modified it a bit to see interfaces and endpoints count: nucleus->device = ...
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2answers
856 views

Problem burning bootloader on ATmega328P using internal clock

I'm trying to burn the arduino bootloader onto my ATmega328P so it uses the internal clock. I followed the tutorial in this page but I'm getting this error. avrdude: Version 6.3, compiled on Dec 16 ...
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2answers
2k views

Burning the Arduino bootloader without an extra Arduino board

Is there any way to burn the Arduino bootloader on a standalone Atmega328 (internal clock 8MHz) from the Arduino official website without using an extra Arduino board to burn the bootloader? I mean, ...
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1answer
2k views

Burning Arduino Leonardo Bootloader to ATmega32U4 with 8MHz internal clock

Burning question: So, I'm trying to burn the Arduino Leo bootloader onto a ATmega32U4 that's on 3.3V and the internal 8MHz clock. Do I have to modify and rebuild the bootloader to set the fuses ...