[simpits-tech] MM5451 LED Driver
jay-anna
simpits-tech@simpits.org
Thu, 31 Oct 2002 13:21:13 -0600
This is a multi-part message in MIME format.
------=_NextPart_000_0007_01C280E0.65B9F2F0
Content-Type: text/plain;
charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Outstanding Rob, thanks a bunch. I am off to try and find these chips.
Jay
"Show me a man who cannot be bothered to do the little things, and I
will show you a man who cannot be trusted to do the big ones."
--Lawrence Bell, Founder Bell Helicopter
-----Original Message-----
From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] On Behalf Of Robert Favre
Sent: Thursday, October 31, 2002 12:16 PM
To: simpits-tech@simpits.org
Subject: RE: [simpits-tech] MM5451 LED Driver
Ok..some of your questions are answered in other emails, but I'll try to
run down the list.
The circuit is actually independent of Falcon, it's just connected to
the parallel port of a PC. The way 'my' software works, is it looks in
shared memory to get the necessary data, so yes, you can have it running
on a different PC, as long as you're using something like F4Mirror, and
the circuit has to be connected to the same PC that's running my
software.
The software will support 2 chips for a total of 70 LEDs (each 5451 chip
supports 35 outputs). The way I have it written is the first chip uses
pins 2 and 3 on the parallel port, and a second chip would use pins 5
and 6.
The assignments on the spreadsheet refer to the outputs of the chip
(not the actual pins)
I got my chips from Radio Shack online, but that was almost a year ago,
so I don't know if they're still available there.
I used a regular ceramic capacitor
Bought the LEDs at the local Radio Shack (geez.I go there a LOT).the
lower the voltage and drain the better
Also.I've uploaded the manufacturer spec sheet to the website
(mm5451.pdf).it gives all the gory details of how the chip works.
Any further questions are welcome!!!
Oh.about the gear lights.there IS a 'data' variable that can be used to
determine if the gear is up/down or in transit, but it's not a 'light
bit'. The light bit is just a on or off indicator for the gearhandle.
Rob
-----Original Message-----
From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] On Behalf Of jay-anna
Sent: Wednesday, October 30, 2002 5:21 PM
To: simpits-tech@simpits.org
Subject: RE: [simpits-tech] MM5451 LED Driver
To Robert or anyone out there, could you give a brief description of how
this circuit works and will it work on a slave machine networked to a
main box running Falcon or must it run on a host machine running Falcon?
Can it run on a slave machine with Falcon mem-reader running? There are
2 chips listed on the spreadsheet, are these two different circuits? Do
they need two different parallel ports? Two different computers? Where
does one locate these chips? Digikey? Mouser etc? The pin assignments
for the LEDs are not really the pin of the chip, but the listed outs
1-35 listed on the circuit? Are there any resistors that need to be
used with these LED's? What voltage LED are the best for this circuit?
The capacitor, can it be a generic ceramic disc capacitor or does it
need to be tantalum, electrolytic etc. type?
I'm not trying to be a butt with all the questions, goodness knows my
pants are going crazy for the fact that someone knows how to do this and
is willing to share it with others and now one less thing I have to
figure out (and would probably have a hard time doing it since I don't
know anything about programming).
Thanks
Jay
"Show me a man who cannot be bothered to do the little things, and I
will show you a man who cannot be trusted to do the big ones."
--Lawrence Bell, Founder Bell Helicopter
-----Original Message-----
From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] On Behalf Of Robert Favre
Sent: Tuesday, October 29, 2002 6:14 PM
To: simpits-tech@simpits.org
Subject: RE: [simpits-tech] MM5451 LED Driver
No problem Mike.
Ok.here we go.I've uploaded the program to the ftp server
(Falcon2_4.zip). The installation instructions are fairly simple.put
the vbio.dll file into the \windows\system directory, click on the
Falcon2_4.exe program to run. I've also included an excel spreadsheet
that lists which lights are on which pins. Questions are welcome
Rob
-----Original Message-----
From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] On Behalf Of Mike Williams
Sent: Tuesday, October 29, 2002 3:23 PM
To: simpits-tech@simpits.org
Subject: RE: [simpits-tech] MM5451 LED Driver
Thanks Rob, I may ask your help on this as I move forward, no heavy
bugging though :)
-----Original Message-----
From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org]On Behalf Of Robert Favre
Sent: Tuesday, October 29, 2002 5:57 PM
To: simpits-tech@simpits.org
Subject: RE: [simpits-tech] MM5451 LED Driver
Yup.I'll put together a zip and post to the server.
Rob
-----Original Message-----
From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] On Behalf Of Mike Williams
Sent: Tuesday, October 29, 2002 1:56 PM
To: simpits-tech@simpits.org
Subject: RE: [simpits-tech] MM5451 LED Driver
Rob,
no idea how to code, maybe I will have to learn some if I must, do you
already have a program written to for the w/ 5451 to interface w/
Falcon?
Thanks
-----Original Message-----
From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org]On Behalf Of Robert Favre
Sent: Tuesday, October 29, 2002 2:40 PM
To: simpits-tech@simpits.org
Subject: [simpits-tech] MM5451 LED Driver
Ok folks.I've uploaded (circuit.jpg) the circuit diagram for the 5451
LED driver to the ftp site. In a single chip configuration, the chip
connects to pins 2,3 and 18 of the parallel printer port. As always,
please be careful in working with ports on your PC. If anyone needs
help with the code portion, I can only help if you're interested in VB.
Also, my code requires the use of a 3rd party driver called VBIO (it's
free, and I believe I have a copy somewhere as well). When I last
played with the code, I was running a Win98SE PC, so I haven't tested on
any other OS.
Rob
------=_NextPart_000_0007_01C280E0.65B9F2F0
Content-Type: text/html;
charset="US-ASCII"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<meta name=3DGenerator content=3D"Microsoft Word 10 (filtered)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"MS Serif";
panose-1:0 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
span.emailstyle17
{font-family:Arial;
color:windowtext;}
span.emailstyle18
{font-family:Arial;
color:navy;}
span.emailstyle19
{font-family:Arial;
color:navy;}
span.emailstyle20
{font-family:Arial;
color:navy;}
span.EmailStyle21
{font-family:Arial;
color:navy;}
span.EmailStyle23
{font-family:Arial;
color:navy;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
{page:Section1;}
-->
</style>
</head>
<body lang=3DEN-US link=3Dblue vlink=3Dpurple>
<div class=3DSection1>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Outstanding </span></font><font =
size=3D2
color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'>Rob</span></font><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>, thanks a =
bunch. I
am off to try and find these chips.</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Jay</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<div>
<p class=3DMsoNormal><strong><b><font size=3D2 color=3Dnavy face=3D"MS =
Serif"><span
style=3D'font-size:10.0pt;font-family:"MS Serif";color:navy'>"Show =
me a man
who cannot be bothered to do the little things, and I will show you a =
man who
cannot be trusted to do the big ones." --Lawrence =
Bell,
Founder Bell Helicopter</span></font></b></strong></p>
</div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> </span></font><font =
size=3D2
face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>simpits-tech-admin@simpits.=
org</span></font><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'> =
[mailto:</span></font><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>simpits-tech-admin@simpits.=
org</span></font><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>] <b><span
style=3D'font-weight:bold'>On Behalf Of </span></b>Robert Favre<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Thursday, October =
31, 2002
12:16 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> </span></font><font =
size=3D2
face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>simpits-tech@simpits.org</s=
pan></font><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'><br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: =
[simpits-tech] MM5451
LED Driver</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Ok..some of your
questions are answered in other emails, but I’ll try to run down =
the
list…</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>The circuit is =
actually
independent of Falcon, it’s just connected to the parallel port of =
a PC. The
way ‘my’ software works, is it looks in shared memory to get =
the
necessary data, so yes, you can have it running on a different PC, as =
long as
you’re using something like F4Mirror, and the circuit has to be =
connected
to the same PC that’s running my software.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>The software =
will support
2 chips for a total of 70 LEDs (each 5451 chip supports 35 =
outputs). The
way I have it written is the first chip uses pins 2 and 3 on the =
parallel port,
and a second chip would use pins 5 and 6.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> The =
assignments on
the spreadsheet refer to the outputs of the chip (not the actual =
pins)</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>I got my chips =
from Radio
Shack online, but that was almost a year ago, so I don’t know if
they’re still available there.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>I used a regular =
ceramic
capacitor</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Bought the LEDs =
at the
local Radio Shack (geez…I go there a LOT)…the lower the =
voltage and
drain the better</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Also…I̵=
7;ve
uploaded the manufacturer spec sheet to the website =
(mm5451.pdf)…it gives
all the gory details of how the chip works…</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Any further =
questions are
welcome!!!</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Oh…about =
the gear
lights…there IS a ‘data’ variable that can be used to
determine if the gear is up/down or in transit, but it’s not a
‘light bit’. The light bit is just a on or off =
indicator for
the gearhandle.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Rob</span></font>=
</p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> =
simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] <b><span =
style=3D'font-weight:bold'>On
Behalf Of </span></b>jay-anna<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Wednesday, October =
30, 2002
5:21 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
simpits-tech@simpits.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: =
[simpits-tech] MM5451
LED Driver</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>To
Robert or anyone out there, could you give a brief description of how =
this
circuit works and will it work on a slave machine networked to a main =
box
running Falcon or must it run on a host machine running Falcon? =
Can it
run on a slave machine with Falcon mem-reader running? There are 2 =
chips
listed on the spreadsheet, are these two different circuits? Do =
they need
two different parallel ports? Two different computers? Where =
does
one locate these chips? Digikey? Mouser etc? The pin =
assignments
for the LEDs are not really the pin of the chip, but the listed outs =
1-35
listed on the circuit? Are there any resistors that need to be =
used with
these LED’s? What voltage LED are the best for this =
circuit?
The capacitor, can it be a generic ceramic disc capacitor or does it =
need to be
tantalum, electrolytic etc. type?</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>I’m
not trying to be a butt with all the questions, goodness knows my pants =
are
going crazy for the fact that someone knows how to do this and is =
willing to
share it with others and now one less thing I have to figure out (and =
would
probably have a hard time doing it since I don’t know anything =
about
programming).</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Thanks</span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Jay</span></font>=
</p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:1.0in'><strong><b><font =
size=3D2
color=3Dnavy face=3D"MS Serif"><span =
style=3D'font-size:10.0pt;font-family:"MS Serif";
color:navy'>"Show me a man who cannot be bothered to do the little =
things,
and I will show you a man who cannot be trusted to do the big
ones." --Lawrence Bell, Founder Bell =
Helicopter</span></font></b></strong></p>
</div>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b>
simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org] =
<b><span
style=3D'font-weight:bold'>On Behalf Of </span></b>Robert Favre<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Tuesday, October =
29, 2002
6:14 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
simpits-tech@simpits.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: =
[simpits-tech] MM5451
LED Driver</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>No
problem Mike…</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Ok…here
we go…I’ve uploaded the program to the ftp server
(Falcon2_4.zip). The installation instructions are fairly
simple…put the vbio.dll file into the \windows\system directory, =
click on
the Falcon2_4.exe program to run. I’ve also included an excel =
spreadsheet
that lists which lights are on which pins. Questions are =
welcome</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Rob</span></font>=
</p>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b>
simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org] =
<b><span
style=3D'font-weight:bold'>On Behalf Of </span></b>Mike Williams<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Tuesday, October =
29, 2002
3:23 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
simpits-tech@simpits.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: =
[simpits-tech] MM5451
LED Driver</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
color=3Dblue
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>Thanks
Rob, I may ask your help on this as I move forward, no heavy bugging =
though :)</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<blockquote style=3D'border:none;border-left:solid blue =
1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'=
>
<p class=3DMsoNormal =
style=3D'margin-right:0in;margin-bottom:12.0pt;margin-left:
2.0in'><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b>
simpits-tech-admin@simpits.org =
[mailto:simpits-tech-admin@simpits.org]<b><span
style=3D'font-weight:bold'>On Behalf Of </span></b>Robert Favre<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Tuesday, October =
29, 2002
5:57 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
simpits-tech@simpits.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: =
[simpits-tech] MM5451
LED Driver</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Yup…I’=
;ll
put together a zip and post to the server.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Rob</span></font>=
</p>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
color=3Dnavy
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:navy'> </span></fo=
nt></p>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b>
simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org] =
<b><span
style=3D'font-weight:bold'>On Behalf Of </span></b>Mike Williams<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Tuesday, October =
29, 2002
1:56 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
simpits-tech@simpits.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: =
[simpits-tech] MM5451
LED Driver</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
color=3Dblue
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>Rob,</span></font=
></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
color=3Dblue
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>no idea
how to code, maybe I will have to learn some if I must, do you =
already
have a program written to for the w/ 5451 to interface =
w/</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
color=3Dblue
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:blue'>Falcon? =
</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
color=3Dblue
face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;color:blue'> </span></fo=
nt></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>Thanks</span></font></p>
</div>
<div>
<p class=3DMsoNormal =
style=3D'margin-right:0in;margin-bottom:12.0pt;margin-left:
2.5in'><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'> -----Original
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> =
simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org]<b><span =
style=3D'font-weight:bold'>On
Behalf Of </span></b>Robert Favre<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Tuesday, October =
29, 2002
2:40 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> =
simpits-tech@simpits.org<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> [simpits-tech] =
MM5451 LED
Driver</span></font></p>
</div>
<blockquote style=3D'border:none;border-left:solid blue =
1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'=
>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Ok folks…I’ve =
uploaded
(circuit.jpg) the circuit diagram for the 5451 LED driver to the ftp
site. In a single chip configuration, the chip connects to pins =
2,3 and
18 of the parallel printer port. As always, please be careful in =
working
with ports on your PC. If anyone needs help with the code portion, =
I can
only help if you’re interested in VB. Also, my code requires =
the
use of a 3<sup>rd</sup> party driver called VBIO (it’s free, and I
believe I have a copy somewhere as well). When I last played with =
the
code, I was running a Win98SE PC, so I haven’t tested on any other =
OS.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Rob</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:2.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
</blockquote>
</blockquote>
</div>
</body>
</html>
------=_NextPart_000_0007_01C280E0.65B9F2F0--