<div dir="ltr">Hi, i'm using c++ chrono to measure a steady signal periods (With GPIO interrupts), And I see that periodically I have errors of +1ms and then of -1ms. (I discarded GPIOP interrupts problem) I tried using rtems API's <span style="color:rgb(38,50,56);font-size:13px;line-height:16px">rtems_clock_get_uptime_nanoseconds and then I saw the same errors.</span><div><font color="#263238"><span style="line-height:16px">I'm suspecting of some problem related with interrupts and the updating of bintime uptime in kern_tc.c related to the simple downcounter ticker this bsp has.</span></font></div><div><font color="#263238"><span style="line-height:16px">Has anybody seen something like this in any other bsp?</span></font></div><div><font color="#263238"><span style="line-height:16px">Thanks! <br clear="all"></span></font><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><span><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="font-size:16px;font-family:Arial;color:rgb(0,0,0);font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">______________________________</span></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><a href="http://www.tallertechnologies.com" target="_blank"><img src="http://www.tallertechnologies.com/templates/tallertechnologies/images/signature.png" width="200" height="78"></a></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><b style="font-weight:normal"><br><span style="font-size:16px;font-family:Arial;color:rgb(0,0,0);font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></span></b></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><font face="verdana, sans-serif" size="4">Marcos Díaz</font></span></p><p dir="ltr" style="margin-top:0pt;margin-bottom:0pt"><font color="#000000" face="verdana, sans-serif" size="2"><span style="line-height:17px;white-space:pre-wrap">Software Engineer</span></font></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><b style="font-weight:normal"><br><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></span></b></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><font face="arial, helvetica, sans-serif" size="1">San Lorenzo 47, 3rd Floor, Office 5</font></span></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span style="color:rgb(0,0,0);font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"><font face="arial, helvetica, sans-serif" size="1">Córdoba, Argentina </font></span></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><b style="font-weight:normal"><font face="arial, helvetica, sans-serif" size="1"><br><span style="color:rgb(0,0,0);font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"></span></font></b></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><font face="arial, helvetica, sans-serif" size="1"><span style="color:rgb(0,0,0);font-weight:bold;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Phone:</span><span style="color:rgb(0,0,0);font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"> +54 351 4217888 / +54 351 4218211/ </span><span style="color:rgb(0,0,0);line-height:12px;white-space:pre-wrap">+54 351 7617452</span></font></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"></p><p dir="ltr" style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><font face="arial, helvetica, sans-serif" size="1"><span style="color:rgb(0,0,0);font-weight:bold;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Skype:</span><span style="color:rgb(0,0,0);font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap;background-color:transparent"> markdiaz22</span></font></p><div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