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On 07/25 02:24, R0b0t1 wrote: |
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> On Tue, Jul 25, 2017 at 12:17 PM, <tuxic@××××××.de> wrote: |
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> > Hi, |
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> > |
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> > (yes, I also have a FTDI USB<=>serial adapter...in this case I need to |
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> > get my CH340 based work) |
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> > |
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> > this drives me crazy... |
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> > |
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> > My CH340G USB<=>serial adaptor is recognized as |
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> > (lsusb) |
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> > Bus 007 Device 011: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter |
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> > (dmesg) |
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> > [52255.016438] usb 7-4: new full-speed USB device number 11 using ohci-pci |
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> > [52255.167432] usb 7-4: New USB device found, idVendor=1a86, idProduct=7523 |
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> > [52255.167439] usb 7-4: New USB device strings: Mfr=0, Product=2, SerialNumber=0 |
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> > [52255.167443] usb 7-4: Product: USB2.0-Serial |
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> > [52255.169580] ch341 7-4:1.0: ch341-uart converter detected |
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> > [52255.179543] usb 7-4: ch341-uart converter now attached to ttyUSB3 |
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> > |
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> > |
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> > But that's it. |
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> > |
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> > It does not seem to react on any kind of action I try to achieve with |
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> > avrdude (I skipped the arduino IDE to get one variable off this |
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> > eqyitation...). |
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> > |
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> > I instructed avrdude to "speak to the board" like this: |
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> > avrdude -p ATmega2560 -c arduino -P /dev/ttyUSB3 -b 9600 |
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> > |
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> > ...but the only reaction I get is ...timeouts... |
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> > |
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> > I have no clue what to do next. |
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> > |
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> > How can I devide the things which are working so far from those |
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> > which are not working. |
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> > |
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> > The ATmega2560 board is working - I can flash it via buspirate (ICSP). |
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> > I burned a bootloader with that...just to mention...not wanting to |
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> > start an Arduino discussion on a Gentoo mailinglist...only to |
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> > explain the context a little bit... |
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> > |
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> > What is the status of the ch340/ch341 driver? |
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> > (I am running kernel 4.12.3 vanilla right off Linus desktop so to |
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> > say...) |
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> > |
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> > Thanks a lot for any help in advance! |
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> > Cheers |
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> > Meino |
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> > |
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> |
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> If the device creates a /dev node there is probably no issue with the |
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> driver. The default Arduino speed is now 57,600, are you sure 9,600 is |
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> right? Before that it was 38,400. Use the ICSP interface to flash a |
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> program that prints things via serial and see if you can receive them. |
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> If your serial connection is unreliable you will get garbled |
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> characters. |
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> |
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> Avrdude should eventually time out with a message, what is that message? |
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> |
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> I have been experiencing similar problems that you have described with |
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> various Arduino and Arduino-derived boards and so far have not been |
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> able to explain it. Most of the time they work perfectly but some do |
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> not and the bootloader seems to refuse to work. |
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> |
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> R0b0t1. |
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> |
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|
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Hi R0b0t1, |
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|
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:) thank you very much for your reply! :) |
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Since it will become nevertheless more Android loaden I will |
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respond off list ... |
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|
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Cheers |
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Meino |
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