From PICLIST@MITVMA.MIT.EDU Fri Nov 15 08:26:05 2002 Received: from cherry.ease.lsoft.com [209.119.0.109] by dpmail10.doteasy.com with ESMTP (SMTPD32-7.13) id A01D1BFC00AE; Fri, 15 Nov 2002 08:26:05 -0800 Received: from PEAR.EASE.LSOFT.COM (209.119.0.19) by cherry.ease.lsoft.com (LSMTP for Digital Unix v1.1b) with SMTP id <12.007DCC3F@cherry.ease.lsoft.com>; Fri, 15 Nov 2002 11:11:58 -0500 Received: from MITVMA.MIT.EDU by MITVMA.MIT.EDU (LISTSERV-TCP/IP release 1.8d) with spool id 4656 for PICLIST@MITVMA.MIT.EDU; Fri, 15 Nov 2002 11:11:51 -0500 Received: from MITVMA (NJE origin SMTP@MITVMA) by MITVMA.MIT.EDU (LMail V1.2d/1.8d) with BSMTP id 3125; Fri, 15 Nov 2002 11:11:03 -0500 Received: from nameserv.rl.ac.uk [130.246.135.129] by mitvma.mit.edu (IBM VM SMTP Level 320) via TCP with ESMTP ; Fri, 15 Nov 2002 11:10:57 EST X-Comment: mitvma.mit.edu: Mail was sent by nameserv.rl.ac.uk Received: from sstdwkiwi (sstdwkiwi.ag.rl.ac.uk [130.246.189.231]) by nameserv.rl.ac.uk (8.8.8/8.8.8) with SMTP id QAA05321 for ; Fri, 15 Nov 2002 16:10:55 GMT References: <004b01c28c23$51b8ba40$6501a8c0@potshe01.pa.comcast.net> <006401c28ca1$b0a4aa40$6501a8c0@potshe01.pa.comcast.net> <009101c28caa$1eec0b30$0300a8c0@main> <007701c28cb1$6e1eaf80$6501a8c0@potshe01.pa.comcast.net> < <000501c28cbe$736503b0$0300a8c0@main> X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 Message-ID: <028b01c28cc1$93f61530$e7bdf682@sstdwkiwi> Date: Fri, 15 Nov 2002 16:10:55 -0000 Reply-To: pic microcontroller discussion list Sender: pic microcontroller discussion list From: "Alan B. Pearce" Subject: Re: [PIC]: 16F627 brown out? question To: PICLIST@MITVMA.MIT.EDU X-RCPT-TO: Status: R X-UIDL: 277600692 X-Evolution-Source: pop://mailinglist%40farcite.net@mail.farcite.net/ Mime-Version: 1.0 X-Evolution: 00000785-0000 >The powerup timer and the crystal oscillator timer are >two separate things. The powerup timer provides a fixed >72mS (typical) delay, and can be disabled. The crystal >timer is always enabled in crystal oscillator modes. Well that may be so, but my understanding is that the chip is being powered down, and then not running on power up. Now if the power up timer is enabled, then he has a timeout of 72ms, which is half the power on time of 150mS. But thank you for pointing out something I had not realised about the 16F627. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.