Trenz Electronic GmbH Support Forum

Archived Boards and Threads => Archived Boards => FAQ GlobalTop GPS Receivers and Modules => Topic started by: Horsa on September 11, 2010, 12:25:34 PM

Title: Undocumented contact pads on FGPMMOUDG
Post by: Horsa on September 11, 2010, 12:25:34 PM
Q: What are TX, RX, GND, TEST contact pads on FGPMMOUDG?

The module FGPMMOUDG has some undocumented contact pads:
- TX
- RX
- GND
- TEST

It is not possible to access the Rx/Tx pins (TTL level) from the module or the chip.
The TEST pin is for GlobalTop internal testing purposes only, hence is not open for public use.
The USB DonGle (UDG) only uses D+/D- differential level for data transferring (no TTL here).