Connection problem can't set com-state

hihohi · June 8, 2023, 1:26pm

Hi,

I bought this cheap china version of an Arduino :

https://de.aliexpress.com/item/4000587268145.html?spm=a2g0o.order_list.order_list_main.311.1ecb5c5fi6kn9Q&gatewayAdapt=glo2deu
I bought the Nano-USB one.

tippe oder füge den Code hier ein

Now i am having problems to upload a code.

avrdude: ser_open(): can't set com-state for "\.\COM3"

I also dont get Board information

Do i have to download any drivers?

Thx for help.

ptillisch · June 8, 2023, 3:07pm

Hi @hihohi

There were some previous reports of this "can't set com-state for ..." error occurring specifically when using the cheap derivative boards like yours that have the CH340 USB chip. It seems that a driver upgrade included in a recent Windows update is the cause of this problem.

The affected users have found that uninstalling and reinstalling the CH340 device fixed the problem. I'll share the instructions you can follow to do that:

Close Arduino IDE if it is running.
Connect the Arduino board to your computer with a USB cable.
Open the Windows Device Manager.
Select View > Devices by type from the menus in the Device Manager window.
Open the "View" menu in Device Manager.
If there is a ✓ to the left of the "Show hidden devices" menu item, click on "Show hidden devices" to disable it.
Open the "Ports (COM & LPT)" section of the Device Manager tree.
You should see a port identified as "USB-SERIAL CH340 (COM_n_)" under the "Ports (COM & LPT)" section (where "COM_n_" is some serial port e.g., COM4). Right click on that item.
A context menu will open.
Select "Uninstall device" from the context menu.
An "Uninstall Device" dialog will open.
Check the box next to "☐ Attempt to remove the driver for this device" in the "Uninstall Device" dialog.
Click the "Uninstall" button.
Wait for the uninstallation process to finish.
Unplug the USB cable of the Arduino board from your computer.
Wait for the Device Manager tree to reload.
Connect the USB cable of the Arduino board to your computer.
Wait for the "USB-SERIAL CH340 (COM_n_)" port to reappear under the "Ports (COM & LPT)" section of the Device Manager tree.
Select File > Exit from the Device Manager menus.

My experience is that the device will be reinstalled automatically by Windows after you plug the board back into the computer, as indicated by the "USB-SERIAL CH340 (COM_n_)" port reappearing in the last step of those instructions. However, it is maybe possible that the complete driver removal will actually have been accomplished by the above instructions, in which case it would be necessary to reinstall the driver. If this happens to you, please let me know and I'll provide instructions you can follow to install the driver.

Now start Arduino IDE again and repeat whatever you were doing before when you encountered that error. Please reply here to let us know whether the error still occurs.

hihohi · June 8, 2023, 5:03pm

hello and thank you for your helf.

I followed your instructions to the point, but unforutunatly it didnt help. I still cant upload anything to the board.

Do you have some other advice?

ptillisch · June 8, 2023, 5:14pm

Do you still get the exact same error message as before when you upload?:

or are you now getting a different error message?

hihohi · June 8, 2023, 7:04pm

i got this message on an older version of ide, which i deinstalled by now.

The uploading just starts and does not proceed for several minutes. It just nothing happens...

xfpd · June 8, 2023, 7:51pm

Hello @hihohi - When my Nanos with CH340 fail to communicate in this manner, it is usually due to my not selecting IDE >> TOOLS >> PROCESSOR >> (old bootloader)

hihohi · June 8, 2023, 8:09pm

Thx for the Help.
I tried this and it does Not Work

ptillisch · June 8, 2023, 11:12pm

Which version of Arduino IDE are you using (e.g., "2.0.1")? The version is shown on the window title bar and also in the Help > About dialog.

I ask for this information because I want to give you the appropriate instructions for the IDE version you are using.

hihohi · June 9, 2023, 3:16am

Thea newest one. 2.1.0.

ptillisch · June 9, 2023, 4:34am

I'm going to ask you to post the full output from the upload when in verbose mode.

NOTE: These instructions will not solve the problem. They are only intended to gather more information which might provide a clue that eventually leads to a solution.

Please do this:

Select File > Preferences... from the Arduino IDE menus.
The "Preferences" dialog will open.
Uncheck the box next to Show verbose output during: ☑ compilation in the "Preferences" dialog.
Check the box next to Show verbose output during: ☐ upload.
Click the OK button.
Attempt an upload, as you did before.
Wait until you are sure the IDE startup has gone into the hang state
(as indicated by no additional output being printed to the "Output" panel at the bottom of the Arduino IDE window).
Right click on the black "Output" panel at the bottom of the Arduino IDE window.
From the context menu, click Copy All.
Open a forum reply here by clicking the Reply button.
Click the <CODE/> icon on the post composer toolbar.
This will add the forum's code block markup (```) to your reply to make sure the error messages are correctly formatted.
Press Ctrl+V.
This will paste the compilation output into the code block.
Move the cursor outside of the code tags before you add any additional text to your reply.
Click the Reply button to post the output.

hihohi · June 9, 2023, 7:10pm

Hi. Thank you very much for your help. i appriciate it!

Here is the response from the output panal

FQBN: arduino:avr:nano
Using board 'nano' from platform in folder: C:\Users\Sim\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6
Using core 'arduino' from platform in folder: C:\Users\Sim\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6

Verwendete Bibliotheken erkennen ...
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE\\sketch\\sketch_jun9a.ino.cpp" -o nul
Funktionsprototypen werden generiert ...
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE\\sketch\\sketch_jun9a.ino.cpp" -o "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE\\preproc\\ctags_target_for_gcc_minus_e.cpp"
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\builtin\\tools\\ctags\\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE\\preproc\\ctags_target_for_gcc_minus_e.cpp"
Sketch wird kompiliert ...
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE\\sketch\\sketch_jun9a.ino.cpp" -o "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE\\sketch\\sketch_jun9a.ino.cpp.o"
Bibliotheken werden kompiliert ...
Kern wird kompiliert ...
Using precompiled core: C:\temp\arduino\cores\arduino_avr_nano_cpu_atmega328_455f2f28c66757a77b423980d515aa47\core.a
Linking everything together...
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -w -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections -mmcu=atmega328p -o "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE/sketch_jun9a.ino.elf" "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE\\sketch\\sketch_jun9a.ino.cpp.o" "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE/..\\..\\cores\\arduino_avr_nano_cpu_atmega328_455f2f28c66757a77b423980d515aa47\\core.a" "-LC:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE" -lm
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy" -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0 "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE/sketch_jun9a.ino.elf" "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE/sketch_jun9a.ino.eep"
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy" -O ihex -R .eeprom "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE/sketch_jun9a.ino.elf" "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE/sketch_jun9a.ino.hex"

"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-size" -A "C:\\temp\\arduino\\sketches\\2816B9FB740EB3D0FB802AA18158A0AE/sketch_jun9a.ino.elf"
Der Sketch verwendet 444 Bytes (1%) des Programmspeicherplatzes. Das Maximum sind 30720 Bytes.
Globale Variablen verwenden 9 Bytes (0%) des dynamischen Speichers, 2039 Bytes für lokale Variablen verbleiben. Das Maximum sind 2048 Bytes.
"C:\Users\Sim\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude" "-CC:\Users\Sim\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf" -v -V -patmega328p -carduino "-PCOM3" -b115200 -D "-Uflash:w:C:\temp\arduino\sketches\2816B9FB740EB3D0FB802AA18158A0AE/sketch_jun9a.ino.hex:i"

avrdude: Version 6.3-20190619
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "C:\Users\Sim\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"

         Using Port                    : COM3
         Using Programmer              : arduino
         Overriding Baud Rate          : 115200

hihohi · June 10, 2023, 6:45am

I found a solution, which I want to share:

The Problem was the chip, which is installed on the board seamed to be a Atmega328PB the "B" at the end changed everything. This is why arduioni IDE couldnt establish a connection.
Therefore i tried to install a proper bootloader.
This instruction helped me to install a bootloader

At my first try i got a error response, that the signature of the chip on board my china-Nano doesnt match with the expected one.

This Hub provided me finaly with the needed package to support the Atmega328PB. After I istalled this board details into arduino IDE, I was able to istall the bootloader.

I hope this could help other people having the same problem of buying things too cheap

THX for the Help!

ptillisch · June 10, 2023, 6:51am

Thanks for taking the time to post an update @hihohi

You might also take a look at the excellent MiniCore as an alternative for adding support for the ATmega328PB to Arduino IDE:

Unlike that amoehl/uino-atmega328pb repository, MiniCore is actively maintained (the last activty in amoehl/uino-atmega328pb was 7 years ago. But if amoehl/uino-atmega328pb is working for you then all is well.

hihohi · June 10, 2023, 8:18am

Hi an thank you very much again. I have looked into thats Hub also, cause the other one seems to be outdated as you mentioned.

I uploaded the Bootloader like instructed to the nano using an Uno.

But when i try to upload a simple blink code, i got timeout.

Sketch uses 1232 bytes (3%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
"C:\Users\Sim\AppData\Local\Arduino15\packages\MiniCore\tools\avrdude\7.1-arduino.1/bin/avrdude" "-CC:\Users\Sim\AppData\Local\Arduino15\packages\MiniCore\hardware\avr\2.2.2/avrdude.conf" -v -V -patmega328pb -carduino -PCOM3 -b115200 -D "-Uflash:w:C:\temp\arduino\sketches\AD5329FA71A3CAD9AAEE127C777BB258/Blink.ino.hex:i"

avrdude: Version 7.1-arduino.1
         Copyright the AVRDUDE authors;
         see https://github.com/avrdudes/avrdude/blob/main/AUTHORS

         System wide configuration file is C:\Users\Sim\AppData\Local\Arduino15\packages\MiniCore\hardware\avr\2.2.2\avrdude.conf

         Using Port                    : COM3
         Using Programmer              : arduino
         Overriding Baud Rate          : 115200
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 1 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 2 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 3 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 4 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 5 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 6 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 7 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 8 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 9 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 10 of 10: not in sync: resp=0x00
avrdude main() error: unable to open programmer arduino on port COM3

avrdude done.  Thank you.

Failed uploading: uploading error: exit status 1

I Think i am using the right setting to compile my code for the PB Version like it is stated in the first row:

FQBN: MiniCore:avr:328:bootloader=uart1,variant=modelPB,BOD=disabled
Using board '328' from platform in folder: C:\Users\Sim\AppData\Local\Arduino15\packages\MiniCore\hardware\avr\2.2.2
Using core 'MCUdude_corefiles' from platform in folder: C:\Users\Sim\AppData\Local\Arduino15\packages\MiniCore\hardware\avr\2.2.2

Detecting libraries used...
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++17 -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -w -x c++ -E -CC -mmcu=atmega328pb -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_ATmega328 -DARDUINO_ARCH_AVR "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\MiniCore\\hardware\\avr\\2.2.2\\cores\\MCUdude_corefiles" "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\MiniCore\\hardware\\avr\\2.2.2\\variants\\pb-variant" "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258\\sketch\\Blink.ino.cpp" -o nul
Generating function prototypes...
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++17 -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -w -x c++ -E -CC -mmcu=atmega328pb -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_ATmega328 -DARDUINO_ARCH_AVR "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\MiniCore\\hardware\\avr\\2.2.2\\cores\\MCUdude_corefiles" "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\MiniCore\\hardware\\avr\\2.2.2\\variants\\pb-variant" "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258\\sketch\\Blink.ino.cpp" -o "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258\\preproc\\ctags_target_for_gcc_minus_e.cpp"
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\builtin\\tools\\ctags\\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258\\preproc\\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++17 -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328pb -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_ATmega328 -DARDUINO_ARCH_AVR "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\MiniCore\\hardware\\avr\\2.2.2\\cores\\MCUdude_corefiles" "-IC:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\MiniCore\\hardware\\avr\\2.2.2\\variants\\pb-variant" "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258\\sketch\\Blink.ino.cpp" -o "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258\\sketch\\Blink.ino.cpp.o"
Compiling libraries...
Compiling core...
Using precompiled core: C:\temp\arduino\cores\d7507696a4a4833a413841b151107294\core.a
Linking everything together...
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -w -Os -Wl,--gc-sections -mmcu=atmega328pb -o "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258/Blink.ino.elf" "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258\\sketch\\Blink.ino.cpp.o" "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258/..\\..\\cores\\d7507696a4a4833a413841b151107294\\core.a" "-LC:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258" -lm
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy" -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0 "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258/Blink.ino.elf" "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258/Blink.ino.eep"
"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy" -O ihex -R .eeprom "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258/Blink.ino.elf" "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258/Blink.ino.hex"
cmd /C echo. && "C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-objdump" --disassemble --source --line-numbers --demangle --section=.text "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258/Blink.ino.elf" > "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258/Blink.ino_atmega328pb_16000000L.lst"
 

"C:\\Users\\Sim\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-size" -A "C:\\temp\\arduino\\sketches\\AD5329FA71A3CAD9AAEE127C777BB258/Blink.ino.elf"
Sketch uses 1232 bytes (3%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.

In the instruction at github there is also mentioned a second way to upload the code by

Use the option Sketch > Upload Using Programmer, this will erase the bootloader and upload your code using the programmer tool.

This is rsulting in the same error as above:

avrdude: Version 7.1-arduino.1
         Copyright the AVRDUDE authors;
         see https://github.com/avrdudes/avrdude/blob/main/AUTHORS

         System wide configuration file is C:\Users\Sim\AppData\Local\Arduino15\packages\MiniCore\hardware\avr\2.2.2\avrdude.conf

         Using Port                    : COM3
         Using Programmer              : stk500v1
         Overriding Baud Rate          : 19200
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 1 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 2 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 3 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 4 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 5 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 6 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 7 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 8 of 10: not in sync: resp=0x00
avrdude stk500_recv() error: programmer is not responding
avrdude stk500_getsync() warning: attempt 9 of 10: not in sync: resp=0x00

So I think i did something wrom by istalling the new bootloader but i cant figure out what.
Do you have any thoughts on that?

Thx again.

hihohi · June 10, 2023, 12:48pm

I was able to solve my Problems here.

system · December 7, 2023, 12:48pm

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.

Topic		Replies	Views
Avrdude: ser_open(): can't set com-state for "\\.\COM3" Uploading	6	2141	December 14, 2023
Avrdude: ser_open(): can't set com-state for "\\.\COM8" Fehlgeschlagenes Hochladen: Hochladefehler: exit status 1 Uploading	5	2438	February 19, 2024
Avrdude: ser_open(): can't set com-state for "\\.\COM3" Uploading	14	2460	August 15, 2024
Com port can't connect Uploading	2	229	July 1, 2024
Avrdude: ser_open(): can't set com-state for "\\.\COM1" Failed uploading: uploading error: exit status 1 Uploading	2	1253	January 3, 2024

Connection problem can't set com-state

Related topics