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# 13.1. 名词缩写及解释

缩写 | 解释
--- | ---
GPS | Global Positioning System
RTC | Real_Time Clock
PHC | PTP hardware clock
PTP | precision time protocol
gPTP | precision time protocol, extension of PTP Protocol
MCU | Microcontroller Unit
UART | Universal Asynchronous Receiver/Transmitter
CAN | Controller Area Network
PPS | Pulse Per Second
NMEA | National Marine Electronics Association
NTP | Network Time Protocol
NIC | Network Interface Card