<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class="">------------------------------------------------------------------------</div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class=""># ./gpsmon /dev/ttyAMA0</div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class="">------------------------------------------------------------------------</div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69); min-height: 14px;" class=""><br class=""></div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class="">Running gpsmon should give you a nice panel display with a scrolling</div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class="">window at the bottom showing the raw data and a top section showing</div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class="">the analyzed fix and time to the second.</div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69); min-height: 14px;" class=""><br class=""></div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class="">If you have a fix, you should also see bars denoting 1PPS once per</div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class="">second between sentence bursts. If you have a fix and *don't* see</div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class="">these, most likely you have forgotten to go root before running</div><div style="margin: 0px; line-height: normal; font-family: Menlo; color: rgb(69, 69, 69);" class="">gpsmon.</div><div class=""><br class=""></div><div class="">————————————————————————————</div><div class=""><br class=""></div><div class="">I have a solid fix with 8 x satellites in view. On my development Pi 2, I always run as root.</div><div class=""><br class=""></div><div class="">The above does not show PPS. I wouldn’t expect it to - how does `gpsmon` know which device to use for PPS?</div><div class=""><br class=""></div><div class="">I have the following PPS devices that do work with `ppstest`:</div><div class=""><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #c33720" class=""><b class="">dev2-rpi</b></span><span style="font-variant-ligatures: no-common-ligatures; color: #5330e1" class=""><b class=""> gpsd #</b></span><span style="font-variant-ligatures: no-common-ligatures" class=""> ls -l /dev/*pps*</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">lrwxrwxrwx 1 root root 4 May 5 15:13 </span><span style="font-variant-ligatures: no-common-ligatures; color: #34bbc7" class=""><b class="">/dev/gpspps0</b></span><span style="font-variant-ligatures: no-common-ligatures" class=""> -> pps0</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">crw-rw---- 1 root tty 244, 0 May 5 15:13 </span><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class=""><b class="">/dev/pps0</b></span></div></div><div class=""><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class=""><b class=""><br class=""></b></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures; color: #afad24" class=""><div style="color: rgb(0, 0, 0);" class="">Am I missing something?</div><div style="color: rgb(0, 0, 0);" class=""><br class=""></div><div style="color: rgb(0, 0, 0);" class="">Thanks,</div><div style="color: rgb(0, 0, 0);" class="">Frank</div></span></div></body></html>