Ive been chasing my tail for a while now trying to figure this out. I can't seem to get the neo m8p to send data to my adafruit feather m0. both 3.3v logic, confirmed that the tx->rx and rx->tx. We have a custom integration board and have also confirmed that the GPS works over USB but I think we're missing something in the configuration. Were using the tinygps library to no avail. GPS configuration has output prt set to UART1. What am I missing? Before someone asks we got the chip from digikey so its almost certainly real, and behaves as if it is in Ucenter.