[simpits-tech] MM5451 LED Driver
Robert Favre
simpits-tech@simpits.org
Thu, 31 Oct 2002 10:16:03 -0800
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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
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</head>
<body lang=3DEN-US link=3Dblue vlink=3Dpurple =
style=3D'tab-interval:.5in'>
<div class=3DSection1>
<p class=3DMsoNormal><span class=3DSpellE><font size=3D2 color=3Dnavy =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Ok<span =
class=3DGramE>..some</span></span></font></span><font
size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial;
color:navy'> of your questions are answered in other emails, but =
I’ll try
to run down the list…<o:p></o:p></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'><o:p> </o:p></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'>The circuit is actually independent =
of <span
class=3DGramE>Falcon,</span> it’s just connected to the parallel =
port of a
PC.<span style=3D'mso-spacerun:yes'> </span>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.<o:p></o:p></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'><o:p> </o:p></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'>The software will support 2 chips =
for a
total of 70 <span class=3DSpellE>LEDs</span> (each 5451 chip supports 35 =
outputs).<span
style=3D'mso-spacerun:yes'> </span>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.<o:p></o:p></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'><o:p> </o:p></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
style=3D'mso-spacerun:yes'> </span>The assignments on the =
spreadsheet refer
to the outputs of the chip (not the actual =
pins)<o:p></o:p></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'><o:p> </o:p></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'>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.<o:p></o:p></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'><o:p> </o:p></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'>I used a regular ceramic =
capacitor<o:p></o:p></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'><o:p> </o:p></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'>Bought the <span =
class=3DSpellE>LEDs</span>
at the local Radio Shack (<span class=3DSpellE>geez</span>…I go =
there a
LOT)…the lower the voltage and drain the =
better<o:p></o:p></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'><o:p> </o:p></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'>Also…I’ve uploaded the
manufacturer spec sheet to the website (mm5451.pdf)…it gives all =
the gory
details of how the chip works…<o:p></o:p></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'><o:p> </o:p></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'>Any further questions are =
welcome!!!<o:p></o:p></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'><o:p> </o:p></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'>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’.<span
style=3D'mso-spacerun:yes'> </span>The light bit is just a on or =
off indicator
for the <span =
class=3DSpellE>gearhandle</span>.<o:p></o:p></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'><o:p> </o:p></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'>Rob<o:p></o:p></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'><o:p> </o:p></span></font></p>
<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>
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:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'><o:p> </o:p></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'>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><o:p></o:p></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><o:p></o:p></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’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><o:p></o:p></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><o:p></o:p></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'>Thanks</span></fo=
nt><o:p></o:p></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'>Jay</span></font>=
<o:p></o:p></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><o:p></o:p></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><o:p></o:p></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><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><o:p></o:p></p>
</div>
<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>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><o:p></o:p></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'> <o:p></o:p></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'>No
problem Mike…</span></font><o:p></o:p></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><o:p></o:p></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'>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><o:p></o:p></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><o:p></o:p></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'>Rob</span></font>=
<o:p></o:p></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><o:p></o:p></p>
<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>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><o:p></o:p></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'> <o:p></o:p></span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><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><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:1.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> <o:p></o:p></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'mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;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
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><o:p></o:p></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'>Yup…I’=
;ll
put together a zip and post to the server.</span></font><o:p></o:p></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><o:p></o:p></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>=
<o:p></o:p></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><o:p></o:p></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
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><o:p></o:p></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'> <o:p></o:p></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'>Rob,</span></font=
><o:p></o:p></p>
</div>
<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'>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><o:p></o:p></p>
</div>
<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'>Falcon? =
</span></font><o:p></o:p></p>
</div>
<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'> </span></fo=
nt><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>Thanks</span></font><o:p></=
o:p></p>
</div>
<div>
<p class=3DMsoNormal =
style=3D'mso-margin-top-alt:0in;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
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><o:p></o:p></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:2.0in'><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><o:p></o:p></p>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font><o:p></o=
:p></p>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Rob</span></font><o:p></o:p>=
</p>
<p class=3DMsoNormal style=3D'margin-left:2.0in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font><o:p></o=
:p></p>
</blockquote>
</blockquote>
</div>
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