Forced HW reset of Arduino from X86

Products & Technology ODYSSEY Serials
#1

Is there a way to force a hard reset of the Arduino from the Odyssey? @ansonhe97 Preferably from Python3

Thanks

#2

Yes, we have fanout the RST pin of Arduino. You can jumper a wire connect RST and X86 anys GPIO, pull down the RST pin then reset the Arduino.

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#3

Thanks for the info. Is there a way to reset it using software?

Also on the breakout 4 pin header you pointed to is the tx/rx the same as on pin 1&3? Or is it a second uart

#4

You want to reset the arduino without hardware? TX/RX is the second uart.

#5

How do I address the 2nd uart?

#6

@ansonhe97
Pls support

#7

Hi @marki763

The 2nd Uart is the Serial2, so you may use this in Arduino to referece.

#8

Hello,

I am using Ubuntu 18.04Lts as operating system. It was recognizing the onboard arduino but I couldn’t upload a code.Then, I tried to reset the device with the way you explained under FAQ. Now my computer doesn’t recognize the onboard arduino. What can I do to recover it?

#9

Hi @koroglu04

Did you remove the jumper that connected RST and GND? Please also try restarting your machine

#10

Hi

I tried both. Atsamd21 is like disappeared.

#11

Can you check what version of the ArduinoCore did you use(The board library for seeed SAMD board)

#12

It was 1.8.0 but I couldn’t understand the relationship between them. There is no device there. When I run this in terminal: ls -l /dev/ttyACM*

It responses like there is no device.

#13

There is some error in the 1.8.0 ArduinoCore’s uploading tool for SAMD21. Did you also experience the interruption while uploading the Arduino Sketch to the SAMD21. This then corrupted the Arduino Bootloader.

Reference Here: Odyssey x86j4105 ubuntu 20.4 no /dev/ttyACM0 and no seeeduino listed under lsusb

Do you have spare Seeed’s SAMD Arduino Boards around or DAPlink? Will need to use SWD to re-upload the bootloader back into the SAMD21 core.

#14

Thank you very much.

I checked it. I can get a Seeedunio. Is there any guide to explain how to upload bootloader? And which version of ArduinoCore should I upload?

#15

Hi @koroglu04

We have took down the 1.8.0 immediately, so you can use the 1.7.9 version of the SAMD core.

You can follow this guide to turn the Seeeduino(SAMD Series) into a DAPlink device: https://wiki.seeedstudio.com/Arduino-DAPLink/

(Or easier if you have a Jlink :D)

And here is the bootloader for SAMD21: