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 LK8000 International Support
 Hardware
 KOBO Glo - topgnns GPS Hangs
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pauloadriano
Pulcino

Portugal
6 Posts

Posted - 19/04/2021 :  14:16:23  Show Profile  Reply with Quote
Hi there,

Im converting my KOBO GLO (new firmware) to a flight GPS tool, but the system hangs anytime TX is conencted to Kobo RX serial internal Port.

I searched and someone mentioned that it needs whats its called as pullup resistor. Can someone help me with a (no brainer) diagram for this. LK800 works if I use a usb GPS conencted to the micro usb Port OTG , but I would prefer an integrated permanent installation.

Thank you

Francisco Paulo

Paulo A

bambuko
Aquilotto

United Kingdom
204 Posts

Posted - 19/04/2021 :  14:48:57  Show Profile  Reply with Quote
which serial port did you connect to:
quote:
...Note that there are two other serial ports on the Glo which you might be tempted to use - don't. For some reason any data on these ports causes the Glo to freeze...

(from: https://blueflyvario.blogspot.com/2014/11/kobo-glo-install.html)
note - no mention of pull up resistor?
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pauloadriano
Pulcino

Portugal
6 Posts

Posted - 19/04/2021 :  15:13:48  Show Profile  Reply with Quote
I connected to the one internal KOBO mainboard, TX / RX GND and VCC


quote:
Originally posted by bambuko

which serial port did you connect to:
quote:
...Note that there are two other serial ports on the Glo which you might be tempted to use - don't. For some reason any data on these ports causes the Glo to freeze...

(from: https://blueflyvario.blogspot.com/2014/11/kobo-glo-install.html)
note - no mention of pull up resistor?


Paulo A
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pauloadriano
Pulcino

Portugal
6 Posts

Posted - 19/04/2021 :  15:17:17  Show Profile  Reply with Quote
Maybe thats it !!!

Let me see witch one I connected to. I will tell if that was it :)


...Note that there are two other serial ports on the Glo which you might be tempted to use - don't. For some reason any data on these ports causes the Glo to freeze...




quote:
Originally posted by bambuko

which serial port did you connect to:
quote:
...Note that there are two other serial ports on the Glo which you might be tempted to use - don't. For some reason any data on these ports causes the Glo to freeze...

(from: https://blueflyvario.blogspot.com/2014/11/kobo-glo-install.html)
note - no mention of pull up resistor?


Paulo A
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pauloadriano
Pulcino

Portugal
6 Posts

Posted - 19/04/2021 :  16:01:04  Show Profile  Reply with Quote
Its working now. I used the incorrect Board Serial.

Thank you for your help

Regards


quote:
Originally posted by bambuko

which serial port did you connect to:
quote:
...Note that there are two other serial ports on the Glo which you might be tempted to use - don't. For some reason any data on these ports causes the Glo to freeze...

(from: https://blueflyvario.blogspot.com/2014/11/kobo-glo-install.html)
note - no mention of pull up resistor?


Paulo A
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