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 ...
0
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3answers
28 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 ...
0
votes
1answer
13 views
Difference in bootloader of atmega with 16MHz external crystal and 8MHz external crystal
I have used your bootloader for Atmega2560 16au with 16MHz external crystal and its works like a wonder.
But in my new project I have 3V power supply so I am planning to use low external crystal so ...
0
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0answers
8 views
How to run atmega2560 16au with 3v
As per my understanding if I use 8Mhz crystal with atmega2560 then it will need low power and can be operated at 3V but I am confuse as I can see atm ega2560 16au and atmega2560 8au .
My question is ...
0
votes
1answer
14 views
Arduino Mega 2560 bootloader delay
I need to make my program run immediately on a reset or power up. However, the bootloader delays program startup by around 2.5 seconds. How can I get over this? Is there a way to turn off the ...
0
votes
1answer
41 views
Programming an ATMEGA2560 using FTDI
I want to know how exactly do I program (upload arduino sketches) an ATMEGA2560 which is boot loaded with an Arduino Bootloader using a FTDI programmer and an Arduino IDE, is there any ...
0
votes
2answers
42 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:
...
2
votes
1answer
75 views
What happens when code is uploaded using the bootloader?
When I upload a new sketch to my Arduino Uno using the Optiboot bootloader, what really happens?
What is sent to the Arduino?
How does it respond?
What does "not in sync mean"?
What is "in sync" ...
0
votes
1answer
34 views
Uploading to atmega328 over serial with arduino bootloader running at 2MHz
I want to run an atmega328 on a breadboard at 2MHz and upload to it via the serial pins (pins 2 and 3). So I am setting the clock divide by 8 fuse bit to enable this, meaning the atmega runs at 2MHz ...
0
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1answer
53 views
Why when I press the reset button
Why when I press the reset button it takes 2 second before I see my sketch start?
The model of Arduino is UNO, and the text in serial communication.
0
votes
2answers
57 views
How to reset Arduino Uno over BLE just like over USB?
I'm working on wireless upload to Arduino and i've succeed for Mega2560. But when trying to upload to Uno it does not wait for upload commands. I'm doing reset using GPIO and HM-10 BLE module wired ...
0
votes
1answer
64 views
Burning Arduino Leonardo Bootloader to ATmega32U4 with 8MHz internal clock [duplicate]
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 ...
0
votes
1answer
115 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 ...
0
votes
0answers
19 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 ...
0
votes
1answer
42 views
What changed in the new Due?
I recently purchased a batch of Due boards and find that they are cosmetically different. After attaching the Atmel-ICE and reading the firmware from both processors, I find that the firmware is ...
1
vote
1answer
82 views
Atmega88 + arduino Bootloader + FTDI adapter
I burned the arduino bootloader within a atmega88, in order to program it directly from the serial port. But I can't download my code from the arduino IDE...
But I get the famous : 'avrdude ...
0
votes
3answers
26 views
Reversed Input Voltage Arduino Mega timeout communication with programmer error
On the barrel connector I accidentally reversed the input voltage to an Arduino Mega. The center post received ground while the outer connection received +12DVC, basically I have the Arduino -12VDC. I ...
0
votes
1answer
25 views
Will the Uno bootloader work in the Duemilanove?
I had an old duemilanove lying around (Which was not working because i accidentially busted the atmega) and I recently bought some atmegas pre-flashed with the UNO bootloader. So I tried to put one of ...
0
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0answers
42 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.
0
votes
1answer
69 views
Arduino communication with ROS via UART
I am trying to program an Arduino Mega(Crius) from a Minnowboard Max A2 via an UART (Hardware Flow Control Off) interface.
I can successfully communicate with the ROS (robot Operating System) on the ...
0
votes
2answers
117 views
How to test Arduino board?
A little history: I have two Arduino Uno and I couldn't program them by IDE, I got these errors:
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in ...
0
votes
0answers
41 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 ...
0
votes
1answer
76 views
Why the bootloader burn on ATmega328 rather than Atmega16U2 in Arduino Uno
I have been researching about the reason why we have a second MCU in arduino UNO for a while now. finally i understood that its been use as USB to serial converter. the question that really bug me ...
0
votes
1answer
44 views
Arduino Mega2560 clone responding slowly
I am using an Arduino Mega2560. Using Arduino Mega as ISP to burn sketch, I had loaded the bootloader from Arduino IDE.
I uploaded the blink LED code to the Mega. But the LED is responding slowly. ...
0
votes
2answers
435 views
Can't burn arduino bootloader to atmega8a with usbasp
I want to burn the arduino bootloader with arduino IDE, but I cant get it done. And here is my circuit:
I have marked the way I connect the ISP port and the chip.
I choose Arduino NG/older as the ...
0
votes
1answer
57 views
Custom Bootloader on Atmega328p - PU - 28 pin DIP
I am experimenting with low-power wireless arduino modules. For that, I needed 3V powered arduino so that I can do away with voltage regulators which eat up a lot of battery juice.
I am using 28 pin ...
0
votes
1answer
260 views
Cannot bootload again after changing the board?
We are so tired and would like to get help with this. We are trying to bootload using the arduino Uno.
We have an atmega 328p smd , that we are trying to bootload. We have connected all the right ...
0
votes
0answers
19 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 ...
0
votes
2answers
413 views
Uploading over Bluetooth Low Energy - bootloader not responding
I'm working on sketches uploading over BLE. I had to write my own uploader (looking at avrdude sources with one eye) so i can change uploading behaviour as needed and it's working over USB just ...
0
votes
0answers
214 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 ...
1
vote
2answers
146 views
Problem Bootloading AVR328P-PU
I executed the following steps in order to burn a bootloader into an AVR328P-PU chip I acquired on ebay.
I have set up AVR328P-PU on a breadboard as described here: ...
-2
votes
1answer
38 views
Reprogram Arduino Mega 2560 using Duemilanove?
Experiencing that Mega 2560 uploading problem. Tried updating the IDE, worked for a while but symptoms went back. Now i want to reprogram that chip.
I'm asking this question cuz hardware ain't free ...
0
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0answers
299 views
Using an Arduino uno to program a standalone ATmega2560
I have successfully programmed standalone ATmega328p using arduino uno by adding following lines in the boards.txt file:
atmega328bb.name=ATmega328 on a breadboard (8 MHz internal clock)
...
1
vote
1answer
155 views
Burning a UNO bootloader into a NANO
I bought some cheap Arduino Nanos from ebay, but the watchdog does not work in them.
So I removed their old bootloader and burnt a new Nano bootloader from the Arduino IDE. Same problem, the watchdog ...
1
vote
3answers
170 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 ...
1
vote
3answers
888 views
How to remove Adafruit Pro Trinket bootloader flashing startup sequence
From what I understand, the Pro Trinket has "Optiboot" which allows it to detect which boot loader you are trying to use, one for USB and one for FTDI. When it's in this "bootloader state" the red LED ...
0
votes
2answers
94 views
How do I replace a burnt atmega328 with a new atmega328(bootloaded) in arduino?
I have an arduino UNO with atmega 328 whose microcontroller got burnt. I bought a new atmega328. I have another working arduino with atmega8. I followed the instructions in ...
0
votes
3answers
212 views
Can the Sparkfun AVR pocket programmer bootload/program a 3.3 V ATmega328p
The product in question - https://www.sparkfun.com/products/9825 - operating at 5 V (and can also supply it to the device being programmed).
I need to program the bootloader onto a 3.3 V ATmega328p ...
0
votes
1answer
933 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 ...
0
votes
2answers
231 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 ...
0
votes
1answer
214 views
Flash “sketch” hex over ISP, without bootloader - possible?
I'm wondering if it's possible to flash the arduino sketch into a AVR, without using a bootloader - over ISP. I'd use the BSD programmer, which is basically parallel port with some resistors.
Let's ...
0
votes
3answers
669 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 ...
0
votes
1answer
332 views
Unable to load sketch: stk500_getparm(): (a) protocol error, expect=0x14, resp=0x41
I've stumbled upon what I've later found it's quite common error, but there seems not to be simple troubleshooting way and solution (people often try various things, sometimes they succeed, sometimes ...
0
votes
1answer
103 views
USART RX Interrupt on an ARDUINO PRO MINI containing factory bootloader
Is it possible to use RXC Interrupt vector with the factory programmed bootloader still existing in the arduino pro mini?
I've written a simple echo program using RXC interrupt vector, the program ...
-4
votes
1answer
756 views
Garbage value Serial Monitor
I am building my own arduino.Here is my code Below. I found code working for Digital Ios like blink example ; analog reading, Problem i am facing in Serial Monitor.Whenever i open Serial monitor i get ...
1
vote
1answer
275 views
ATmega32u4 bootloader
Hey all this would be my first encounter needing to burn the Arduino IDE bootloader onto a blank ATMega32u4 that I bought from Digikey.
What all do I need to buy in order to program the bootloader ...
1
vote
2answers
441 views
Homebrew Arduino using ATMEGA328P, ISP or ICSP?
I plan on creating a homebrew Arduino breakout board using the ATMEGA328P smd version. I'm geeting confused by the wealth of information out there as to whether I should be using ICSP or ISP to ...
4
votes
2answers
2k views
ATtiny85. How do I burn a bootloader? What is the process?
I want to use all six I/O pins of an ATtiny85, that means also using the reset pin as an I/O pin, however, I found out that if I disable the RESET pin, I can no longer program the ATtiny using an ISP ...
2
votes
1answer
68 views
Arduino mini requires uploading on every power up?
My Arduino mini is experiencing some really strange problem.
I'm using the BlinkWithoutDelay example sketch for testing:
const int ledPin = 13;
int ledState = LOW; // ledState used to ...
0
votes
1answer
41 views
Creating a product with arduino bootloader
If you have a prototype with arduino and you wish to create a real product can you do it or the fact that it contains the arduino bootloader prevents you?
BTW, i dont have a product ready. I am ...
0
votes
2answers
151 views
Finding arduino bootloader version?
I have problem with WDT reset. After reset the device goes on for a boot loop. from the following link https://code.google.com/p/arduino/issues/detail?id=181
It has been mentioned that there is ...
