From: Steven Baltakatei Sandoval Date: Fri, 3 Jul 2020 20:58:01 +0000 (+0000) Subject: doc(bkgpslog-plan):Closed TODO item X-Git-Url: https://zdv2.bktei.com/gitweb/EVA-2020-02.git/commitdiff_plain/3592a7e928008b0e89286c91aa72b4db89a50d5f?ds=sidebyside;hp=238775e6ff3d7a699a601590f881e9c08a9397e6 doc(bkgpslog-plan):Closed TODO item --- diff --git a/exec/bkgpslog-plan.org b/exec/bkgpslog-plan.org index b7cc736..47154eb 100644 --- a/exec/bkgpslog-plan.org +++ b/exec/bkgpslog-plan.org @@ -33,7 +33,8 @@ done using a new function ~checkMakeTar~. magicWriteVersion() to be called whenever a new time-stamped ~VERSION~ file needs to be generated and appended to the output tar file ~PATHOUT_TAR~. -** TODO Rewrite buffer loop to reduce lag between gpspipe runs +** DONE Rewrite buffer loop to reduce lag between gpspipe runs + CLOSED: [2020-07-03 Fri 20:57] 2020-07-03T17:10Z; bktei> As is, there is still a 5-6 second lag between when ~gpspipe~ times out at the end of a buffer round and when ~gpspipe~ is called by the subsequent buffer round. I believe this can @@ -47,7 +48,16 @@ while( $SECONDS < $SCRIPT_TTL); do writeBuffer & done #+END_EXAMPLE - +2020-07-03T20:56Z; bktei> I simplified it futher to something like +this: +#+BEGIN_EXAMPLE +while( $SECONDS < $SCRIPT_TTL); do + writeBuffer & + sleep $SCRIPT_TTL +done +#+END_EXAMPLE +Raspberry Pi Zero W shows approximately 71ms of drift per buffer round +with 10s buffer. * bkgpslog narrative ** Initialize environment *** Init variables