1209 / 8851 - The Tic-Nic PTP Adapter with GPS and Hardware I/O
| VID | 0x1209 |
|---|---|
| PID | 0x8851 |
| Owner | Till's USB Gadgets |
| License | EUPL |
| Site | https://www.github.com/till-s/tic-nic |
| Source | https://www.github.com/till-s/tic-nic |
The Tic-Nic is based on the DP83640 PHY with IEEE-1588 (PTP) support. The PHY has several hardware GPIOs which can be used to capture or generate PTP-synchronized events. These are routed to connectors and pins on the board.
A USB CDC-NCM network adapter which connects to the PHY is implemented in a Trion-T20 FPGA.
The FPGA has plenty of resources for added user functionality (but the device operates just fine as-is).
The board also features an optional GPS receiver which lets you operate in PTP grand-master mode. The NMEA data are accessible via a USB CDC-ACM interface.
The DP83640 is well-supported under linux; a kernel driver which extends the vanilla CDC-NCM driver to integrate PHY access via MDIO is part of this project (GPL).