💬 Various bootloader files based on Optiboot 6.2
-
when I run the below command in Ubuntu I can flash the bootloader
sudo avrdude -c usbtiny -p m328p -U flash:w:optiboot_atmega328_01M_009600_NOLED.hex -U lfuse:w:0x62:m -U hfuse:w:0xDE:m -U efuse:w:0x07:mAnd then I can use the Arduino IDE and upload sketch with settings for 1MHz external 9k6 BOD=1V8
@bjacobse
Efuse 0x07 actually means no Brown Out Detection. Should save you some nano Amperes during operation. -
Hi, and thanks for your amazing work! I am trying to make your Narrow node with a Atmega 328P-PU and the pcb you made. I have low understanding of how I am going to upload "optiboot_atmega328_08M_038400_D6.hex" via a arduino uno.. Do I need to make anything with fuses or so? And how do I do it if that is the case?
-
Hi, and thanks for your amazing work! I am trying to make your Narrow node with a Atmega 328P-PU and the pcb you made. I have low understanding of how I am going to upload "optiboot_atmega328_08M_038400_D6.hex" via a arduino uno.. Do I need to make anything with fuses or so? And how do I do it if that is the case?
There is a very good tutorial how to do this:
-
There is a very good tutorial how to do this:
-
@GertSanders Okey, thanks so In my understanding, that takes care of the fuses also.
It does if the board definitions are set right. Check out the tutorial to understand how it works, then you should know how to adapt to other boot loaders (like mine).
-
It does if the board definitions are set right. Check out the tutorial to understand how it works, then you should know how to adapt to other boot loaders (like mine).
-
@GertSanders Okey, I almost got it! I am stuck on compiling the sketch. It says "pins_arduino.h" is missing. Apparently I need a folder called "28PinBoard" with a file "pins_arduino.h" in it. Wich one can I use for this project?
Drop this ZIP (unpack it there) into your "hardware" directory. You should find a "hardware" directory in the Sketches directory, then restart the Arduino IDE.
It should find a complete set of boot loaders for the 28 pin and 32 pin versions.
0_1463253058014_atmega328p.zip
You will need to check that the directory is unpacked with all subdirectories. The directory name will be "atmega328p".
-
@GertSanders My personal observations - some chips are more temperamental than the others. I recently tried to upload the sketch (8Mhz internal clock) and it failed a few times. Then I reflashed Optiboot and used the external clock (8Mhz external clock) and this cured the issue. With other chips I did not have this problem.
-
@GertSanders My personal observations - some chips are more temperamental than the others. I recently tried to upload the sketch (8Mhz internal clock) and it failed a few times. Then I reflashed Optiboot and used the external clock (8Mhz external clock) and this cured the issue. With other chips I did not have this problem.
Indeed, the internal oscillator on some atmega328's is a bit off from 8MHz and enough so that higher speed transmission of sketches can give a problem.
-
@GertSanders thanks for this bootloader pack. After one day of trying I was still unable to upload scetches to atmega burned with bootloader 8Mhz image to atmeg328 - 28 pin DIL from this: https://forum.mysensors.org/topic/3018/tutorial-how-to-burn-1mhz-8mhz-bootloader-using-arduino-ide-1-6-5-r5/1 tutorial.
With your 0_1463253058014_atmega328p.zip pack unzipped to "hardware" directory worked like a charm. -
@GertSanders : Ive downloaded the files and boards.txt. I noticed you've made a distinction between the 28p DIP and the 32p TQFP. But in the boards.txt I can find no differences besides that the high fuse bits are global for the 28p version and individual (but all the same!) for the 32p version.
Does that have a reason? -
@GertSanders : Ive downloaded the files and boards.txt. I noticed you've made a distinction between the 28p DIP and the 32p TQFP. But in the boards.txt I can find no differences besides that the high fuse bits are global for the 28p version and individual (but all the same!) for the 32p version.
Does that have a reason?@DavidZH
No particular reason, I did not spend as much effort in defining the options for the 32-pin package as I did for the 28-pin package.
When my free time becomes mine again, I will be able to take this up again. For now I have to be content with a relatively short online presence every week. -
@DavidZH
No particular reason, I did not spend as much effort in defining the options for the 32-pin package as I did for the 28-pin package.
When my free time becomes mine again, I will be able to take this up again. For now I have to be content with a relatively short online presence every week.@GertSanders
No worries! It just caught my eye and was wondering. I'll keep an eye on this as I'm finalising my node network and have to choose a bootloader about now. -
@GertSanders I am finally getting around to trying some of these bootloaders. Thanks for making them! Would you mind posting the latest .zip file to the openhardware site? I started with those files and was getting the same errors as others mentioned. As I got further down this thread I noticed I was missing some files. :)
Thanks again for making these! -
The site will still unpack zips and extract the content. I could disable this, but it would make it harder to upload large projects.
Like @GertSanders propose, allowing (and not uppacking) rar-files might be a better solution.
-
I have added my atmega328 directory in a RAR file and uploaded it to the site.
This compressed file contains a directory structure that contains all bootloaders I use, and the extra files needed to make most of those available from the Arduino IDE.
To use it:
Close the Arduino IDE
Unpack the RAR file
Open the IDEThis compressed file needs to be unpacked inside the "hardware" directory which sits inside the Arduino Sketches directory. If you do not have a "hardware" directory inside the Arduino Sketches directory, then you need to make this first.
Then go inside the "hardware" directory and there unpack the RAR file.My directory structure looks like this:
[Arduino] [hardware] [atmega328p] [avr] [bootloaders] [myoptiboot] ... all the HEX files ... [variants] [28PinBoard] pins_arduino.h [32PinBoard] pins_arduino.h [40PinBoard] pins_arduino.h [44PinBoard] pins_arduino.h boards.txt platform.txt -
I'm finally managing to update my Arduino IDE and would like to ask how you have your boards.txt setup. Do you have your boards.txt file that is zipped up in your config zip file just located in the avr folder without running the default boards.txt file or are we supposed to merge your boards file with the original one? Back when i was developing my own boards, i seem to remember just running your board file without any of the default files....
Is this correct or do we merge them?
-
@GertSanders Awesome, thank you for uploading it as a .rar!!! So easy now :)
@Samuel235 You should be able to just copy the entire folder from the .rar file into your Arduino folder. I had to create a "Hardware" folder as it didn't exist. I'm on Windows 10 and it looks like this:
After closing/re-opening the Arduino IDE it looks like this:
-
The boards .txt and platform.txt files are not complete yet, and I still need to check and change the pins_arduino.h boards for the 40 and 44 pin atmega's. That is still on my to do list, but the structure is there already. I'm still learning from other hardware deployments how to define this in a practical way. Hopefully by sharing this will be improved.
