geekhack

geekhack Projects => Making Stuff Together! => Topic started by: devilcry on Sat, 26 June 2021, 22:50:26

Title: tecware phanntom elite mod to usb c detach
Post by: devilcry on Sat, 26 June 2021, 22:50:26

I have tecware phanmtom elite 104 and i use 5 pin USB on the PCB 5V,D+,D-,Ground, and SG. So, what is SG do ? https://i.ibb.co/Yk1dHLh/IMG-20210626-200753.jpg

for usb c breakout, which board i should buy ? standar usb c with only 4 pin need to solder ? https://www.aliexpress.com/item/1005002795893679.html

11-more pin need to solder ? https://www.aliexpress.com/item/1005002796478202.html

or maybe breakout like sparkfun USB C Bob : https://www.sparkfun.com/products/15100

Title: Re: tecware phanntom elite mod to usb c detach
Post by: piit79 on Sun, 27 June 2021, 03:10:02

I think SG could be "shield ground".

For USB 2.0 device to work with USB Type C, you just need to connect the usual 4 pins (VCC, GND, D+, D-) and additionally connect CC1 and CC2 to ground each via its own 5.1k resistor (to set the correct USB device mode). You can ignore all the other pins.

Just watch out - because USB-C is reversible, all pins exist in pairs: 1 in the top row and one in the bottom row. So D+ is actually 2 pins - DP1 and DP2, that need to be connected together. Same with D- (DN1, DN2) VCC and GND (there are actually 4 pins for each).

Hope that helps :)

Title: Re: tecware phanntom elite mod to usb c detach
Post by: devilcry on Sun, 27 June 2021, 06:02:57

Quote from: piit79 on Sun, 27 June 2021, 03:10:02

I think SG could be "shield ground".

For USB 2.0 device to work with USB Type C, you just need to connect the usual 4 pins (VCC, GND, D+, D-) and additionally connect CC1 and CC2 to ground each via its own 5.1k resistor (to set the correct USB device mode). You can ignore all the other pins.

Just watch out - because USB-C is reversible, all pins exist in pairs: 1 in the top row and one in the bottom row. So D+ is actually 2 pins - DP1 and DP2, that need to be connected together. Same with D- (DN1, DN2) VCC and GND (there are actually 4 pins for each).

Hope that helps :)

thanks for your information and help. Should i care about "shield ground" or just leave it ( not connect to anything ) ?

and, it's better to buy usb c breakout with only 4 pin like this (https://www.aliexpress.com/item/1005002795893679.html) ? because it is simple dan safe ?

sorry my english.

Title: Re: tecware phanntom elite mod to usb c detach
Post by: suicidal_orange on Sun, 27 June 2021, 06:14:08

The 4 pin only connects D- to one pin so it will only work with the cable one way up.