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takigama / glinet_ar150_gps_daughterboard

Daughterboard for the AR150 from GL.inet to support a GPS, primarily for the purposes of supporting NTP w/ PPS
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Some Qs #2

Open Strykar opened 5 years ago

Strykar commented 5 years ago
  1. What are your thoughts on using this Uputronics breakout GPS board with the AR-150? I have an external antenna.
  2. Why install PTP on the AR-150, iirc the AR9331 SoC NIC's don't support hardware time-stamping?
  3. Have you tried https://github.com/mlichvar/pps-gpio-poll with your daughterboard? Unlike the pps-gpio module (which is included in the Linux tree) it doesn’t use interrupts. It uses a high-resolution timer and waits for the GPIO value to change in a busy loop instead.
  4. Could you post some performance numbers of the Quectel vs MTK hardware compared to your older uBlox?