💬 Various bootloader files based on Optiboot 6.2
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oki I got it 4 MHz wont work on Pro Mini. but I would assume 1MHz bootloaders should be ok?
1)I have first selected board: atmega328 based 32pins TQFP, then the frequency.
2)Flashed bootloader via tiny USB
3)Then put Pro Mini to FTDI, and then tried to upload sketch. (no changes at all to which board type, speed, or BOD)(I use 1 USB port on laptop for tinyUSB and another USB port for FTDI.)
Then I change speed/frequency, and do the step 1,2,3 as above
Selecting 8MHz-crystal-38k4-D8 is working flawless.
None of the 1MHz selection is working for me... -
oki I got it 4 MHz wont work on Pro Mini. but I would assume 1MHz bootloaders should be ok?
1)I have first selected board: atmega328 based 32pins TQFP, then the frequency.
2)Flashed bootloader via tiny USB
3)Then put Pro Mini to FTDI, and then tried to upload sketch. (no changes at all to which board type, speed, or BOD)(I use 1 USB port on laptop for tinyUSB and another USB port for FTDI.)
Then I change speed/frequency, and do the step 1,2,3 as above
Selecting 8MHz-crystal-38k4-D8 is working flawless.
None of the 1MHz selection is working for me...@bjacobse
Strange, I'm using the 1mhz with 9600 upload on 2 narrow nodes. I will investigate tomorrow. -
@bjacobse
Strange, I'm using the 1mhz with 9600 upload on 2 narrow nodes. I will investigate tomorrow.@GertSanders
I it's quite strange, I believe your bootloadser are in good shape and also your boards.txt
Thats why I suspect my USB to miniUSB cable to FTDI to behave odd.
Do you have Arduino Pro Mini 3,3V 8MHz that you can try at your place? -
@GertSanders
I it's quite strange, I believe your bootloadser are in good shape and also your boards.txt
Thats why I suspect my USB to miniUSB cable to FTDI to behave odd.
Do you have Arduino Pro Mini 3,3V 8MHz that you can try at your place?I uploaded two boot loaders on a pro mini 3V3 version with 8Mhz resonator.
On this board I loaded a boot loader for 1MHz clock frequency and upload speed of 9600 baud. This worked fine. Then I tried the 4800 baud upload speed version: same thing. Both boot loaders uploaded fine, and I was able to load sketches on both with an Adafruit FTDI friend at the specified upload speeds. 4800 is really "sloooooow".
Just to be sure I also used a cheap Chinese FTDI interface: same good results. -
I uploaded two boot loaders on a pro mini 3V3 version with 8Mhz resonator.
On this board I loaded a boot loader for 1MHz clock frequency and upload speed of 9600 baud. This worked fine. Then I tried the 4800 baud upload speed version: same thing. Both boot loaders uploaded fine, and I was able to load sketches on both with an Adafruit FTDI friend at the specified upload speeds. 4800 is really "sloooooow".
Just to be sure I also used a cheap Chinese FTDI interface: same good results.@GertSanders
Thank you Gert for checking with Arduino Pro Mini 8Mhz 3V3.
Then I will try with windows laptop, different FTDI and another cable. something in my current setup is behaving weird -
This is strange I tried to use win7 + Arduino IDE 1.6.7, and things are behaving normal, but it's not possible to at the same time, have FTDI + tinyUSB connected on each USB port, it's only working when 1 USB is used. I have 3 pcs Arduino Pro mini, 2 is working as they should. and 1 is only to be flashed with 8 MHZ bootloaders. I will have to look at this Pro Mini in a microscope at work - maybe it's a 5V 16MHz?!?
Something else I use Ubuntu and Arduino IDE 1.6.8. The Arduino IDE is behaing weird.
I now only use the 2 pcs good Arduini Pro Mini, both bootloader flased with tinyUSB and Win7 IDE 1.6.7. with 1MHz 4k8 bootloader. when I use FTDI in Ubuntu IDE 1.6.8 I get error message that upload failed. But is is working.
I can first upload sketch "bare minimum" upload and get error, no LED is flashing in Pro Mini (Expected), then I upload "Blink", upload shows error, but Pro Mini LED is blinking.
so Arduino IDE 1.6.8 in my Ubuntu is uploading sketches with FTDI fine - but shows an Arduino error. So I can flash Gert bootloadesr with windows7 and Arduino 1.6.7 :-)False error messages from Arduino 1.6.8...
WARNING: Category '' in library UIPEthernet is not valid. Setting to 'Uncategorized' Sketch uses 1,060 bytes (3%) of program storage space. Maximum is 32,256 bytes. Global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes for local variables. Maximum is 2,048 bytes. avrdude: stk500_recv(): programmer is not responding Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.Now I have to try to verify if my Ubuntu can flash bootloader with tinyUSB
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My Ubuntu won't let me successfully flash a 1MHz bootloader, only 8MHz with speed 38k4, it's not working with 8MHz 9k6 either,
but at least I can also confirm that Gert's bootloaders are working as they shall, since it's working for me using windows7 laptop -
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
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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?
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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:
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There is a very good tutorial how to do this:
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@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).
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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).
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@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".
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@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.
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@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.
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@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.
