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Wiren Board 6: WBE2R-R-GPS GPS/GLONASS Extension Module:NTPD PPS Setup/en: различия между версиями
Wiren Board 6: WBE2R-R-GPS GPS/GLONASS Extension Module:NTPD PPS Setup/en (просмотреть исходный код)
Версия 18:11, 19 июля 2019
, 4 года назадНовая страница: «The pps pulse is precisely synchronized with the beginning of each second, which makes it possible to increase the accuracy of the time determination on the contr…»
(Новая страница: «The controller module is represented by two devices - serial port /dev/ttyMOD3 and signal transmission device pps /dev/pps2 Port /dev/ttyMOD3 transmits data from…») |
(Новая страница: «The pps pulse is precisely synchronized with the beginning of each second, which makes it possible to increase the accuracy of the time determination on the contr…») |
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| Строка 17: | Строка 17: | ||
Port /dev/ttyMOD3 transmits data from the module via standard Protocol [https://wikipedia.org/wiki/NMEA_0183 NMEA], including position, receiver speed, and time and date messages. Usually the information is updated once per second. The module is made on the chip SIM68, debugging UART-port is not available in the current hardware modification. | Port /dev/ttyMOD3 transmits data from the module via standard Protocol [https://wikipedia.org/wiki/NMEA_0183 NMEA], including position, receiver speed, and time and date messages. Usually the information is updated once per second. The module is made on the chip SIM68, debugging UART-port is not available in the current hardware modification. | ||
The pps pulse is precisely synchronized with the beginning of each second, which makes it possible to increase the accuracy of the time determination on the controller with microsecond accuracy. | |||
=== Проверяем наличие сигнала pps === | === Проверяем наличие сигнала pps === | ||