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Author Topic: Keyboard not detected (GH60 USB C mod)  (Read 3368 times)

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Offline luomio

  • Thread Starter
  • Posts: 1
  • Location: China
Keyboard not detected (GH60 USB C mod)
« on: Thu, 10 October 2019, 09:28:43 »
Hi all, I'm new to GH60 and not familiar with Atmega32U4 either. So I got the pcb layout from github: https://github.com/komar007/gh60, and make a tiny change on it: use TYPEC plug instead of MINI-USB. Following are the pcb layout.

227893-0

After I got the pcb and soldered all capacitors & resistors & Crystal &  MCU & TYPEC plug --- make it a functional board --- the board are not recognized by my pc through a type-c connection.

So anyone have any clues or suggestions ? Really thanks.

Mod edit: Changed thread title
« Last Edit: Thu, 10 October 2019, 19:04:51 by suicidal_orange »
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Offline hasu

  • Posts: 3491
  • Location: Tokyo, Japan
  • @tmk
    • tmk keyboard firmware project
Re: Keyboard not detected (GH60 USB C mod)
« Reply #1 on: Sat, 12 October 2019, 22:15:15 »
You need to terminate CC pins properly with resistors for host to recognize the device.
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Offline Tom_Kazansky

  • Posts: 409
  • Location: Vietnam
  • Oblivion Knight
Re: Keyboard not detected (GH60 USB C mod)
« Reply #2 on: Mon, 21 October 2019, 23:12:34 »
2 CC lines must be pulled down with 5.1k resistors. ( CC --- 5.1k resistor --- GND)

I followed the USB-type-C guide by ai03 and it works flawlessly.
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