X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ispmxmta06-srv.alltel.net ([166.102.165.167] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1074821 for flyrotary@lancaironline.net; Thu, 20 Apr 2006 18:37:35 -0400 Received-SPF: pass receiver=logan.com; client-ip=166.102.165.167; envelope-from=trpeters@alltel.net Received: from ispmxaamta04-gx.alltel.net ([69.40.91.233]) by ispmxmta06-srv.alltel.net with ESMTP id <20060420223644.FPPF12807.ispmxmta06-srv.alltel.net@ispmxaamta04-gx.alltel.net> for ; Thu, 20 Apr 2006 17:36:44 -0500 Received: from 3F8JX51SHAW ([69.40.91.233]) by ispmxaamta04-gx.alltel.net with SMTP id <20060420223644.MPL22927.ispmxaamta04-gx.alltel.net@3F8JX51SHAW> for ; Thu, 20 Apr 2006 17:36:44 -0500 Message-ID: <002101c664ca$e70e8e20$6400a8c0@shaw.shawinc.com> From: "Timothy Peters" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Possible data-logging solution? Date: Thu, 20 Apr 2006 18:36:44 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001E_01C664A9.5FCA6C70" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 This is a multi-part message in MIME format. ------=_NextPart_000_001E_01C664A9.5FCA6C70 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Yep... I'm sure. Every day... like it or not. =20 I was referring to Tracy's reference to 14 bit words. Using Intel's (or = AMD) PC processor architecture, a word is 16 bits, or two contiguous = eight-bit bytes. This has been the PC standard since 1982 IIRC. Tracy = is may be using 14 bits to increase data storage. Or it may be that the = IC Chip Tracy is using can only process 14 bit in one clock cycle. (An = unusual number, but possible). =20 You hear about 32 bit architechture, but it's 16 bit parrallel threaded, = so not actually 32 bit "words". This is why you can use operating = systems all the way back to Windows 3.1 on "32 bit" machine. The new 64 = chips are real 64 bit words which require the latest Win64 based = operating systems, but very little hardware and software available. Too = much info? I volunteered when no-one stepped up to the plate. Looks like there is = no shortage of volunteers now. I'll just bow out since there are = already volunteers with hands on experience with the hardware. =20 One last recommendation is to NOT use Access for data storage. If you = want a small database to store data (which would be a complete waste of = speed and space with the small amout of data here), get the free MSDE = database from Microsoft, a miniture desktop version of MS SQL Server. = Any mismanaged application connections to Access instantly corrupt the = tables. My 2 cents. =20 -TWP ----- Original Message -----=20 From: Finn Lassen=20 To: Rotary motors in aircraft=20 Sent: Thursday, April 20, 2006 10:42 AM Subject: [FlyRotary] Re: Possible data-logging solution? Nope. F9 is one byte: 11111001. You're sure you're working with this on a daily basis? Finn (really ought to volunteer to do this since I'm near Tracy, and have = been there, done that with my engine monitor, Pocket PC and Excel) Timothy Peters wrote: Tracy, ...=20 I assume when you are talking about markers like $F9, you are not = talking about the ASCII characters but Hex... but then word length is 16 = bits.=20 ------=_NextPart_000_001E_01C664A9.5FCA6C70 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Yep... I'm sure. Every day... like it or = not.

I was referring to Tracy's reference to 14 bit = words. Using=20 Intel's (or AMD) PC processor architecture, a word is 16 bits, or = two=20 contiguous eight-bit bytes. This has been the PC standard = since 1982=20 IIRC. Tracy is may be using 14 bits to increase data=20 storage. Or it may be that the IC Chip Tracy is using can only = process 14=20 bit in one clock cycle. (An unusual number, but possible). =

You hear about 32 bit architechture, but it's 16 = bit parrallel=20 threaded, so not actually 32 bit "words". This is why you can use=20 operating systems all the way back to Windows 3.1 on "32 bit"=20 machine. The new 64 chips are real 64 bit words which require=20 the latest Win64 based operating systems, but very little = hardware and=20 software available. Too much info?

I volunteered when no-one stepped up to the plate. Looks like = there=20 is no shortage of volunteers now. I'll just bow out since there = are=20 already volunteers with hands on experience with the = hardware.

One last recommendation is to NOT use Access for data = storage. If you=20 want a small database to store data (which would be a complete waste of = speed=20 and space with the small amout of data here), get the free MSDE = database=20 from Microsoft, a miniture desktop version of MS SQL Server. Any=20 mismanaged application connections to Access instantly corrupt the = tables. =20 My 2 cents.

-TWP

----- Original Message -----
From:=20 Finn=20 Lassen
To: Rotary motors in = aircraft

Sent: Thursday, April 20, 2006 = 10:42=20 AM

Subject: [FlyRotary] Re: = Possible=20 data-logging solution?

Nope. F9 is one byte: 11111001.

You're sure = you're=20 working with this on a daily basis?

Finn
(really ought to = volunteer=20 to do this since I'm near Tracy, and have been there, done that with = my engine=20 monitor, Pocket PC and Excel)

Timothy Peters wrote:

Tracy,

...=20

I assume when you are talking about markers = like $F9,=20 you are not talking about the ASCII characters but Hex... but then = word=20 length is 16 bits. =

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