How to send a signal from PC to a circuit board?
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Posted by on January 11, 2007, 2:31 pm
Please log in for more thread options Hi I am working on a project where I have to send signals from a PC (RS232 or USB?) to a 4-to-16 decoder. Basically, I need a way to send signals from a PC to drive the 4 inputs of the decoder. Anybody knows an easy way to do that? I am looking for the hardware and IC components necessary that will convert the signals from the PC. Then, what software or programs will I need to code? | |||||||||||||
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Posted by James Beck on January 11, 2007, 2:47 pm
Please log in for more thread options lichxx@gmail.com says... At least 8 easy to use data lines. Real easy if you are using Win98 or less or DOS. Win2K and XP are a little tougher. Jim | |||||||||||||
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Posted by on January 11, 2007, 2:54 pm
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James Beck wrote: > lichxx@gmail.com says...
> > Hi
> > > > I am working on a project where I have to send signals from a PC (RS232 > > or USB?) to a 4-to-16 decoder. Basically, I need a way to send signals > > from a PC to drive the 4 inputs of the decoder. Anybody knows an easy > > way to do that? > > > > I am looking for the hardware and IC components necessary that will > > convert the signals from the PC. Then, what software or programs will I > > need to code? > > > > > How about using the parallel port?
> At least 8 easy to use data lines. > Real easy if you are using Win98 or less or DOS. > Win2K and XP are a little tougher. > > Jim I am using Win XP. How hard would that be? | |||||||||||||
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Posted by James Beck on January 11, 2007, 4:15 pm
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lichxx@gmail.com says... >
> James Beck wrote: > > lichxx@gmail.com says...
> > > Hi
> > > > > > I am working on a project where I have to send signals from a PC (RS232 > > > or USB?) to a 4-to-16 decoder. Basically, I need a way to send signals > > > from a PC to drive the 4 inputs of the decoder. Anybody knows an easy > > > way to do that? > > > > > > I am looking for the hardware and IC components necessary that will > > > convert the signals from the PC. Then, what software or programs will I > > > need to code? > > > > > > > > How about using the parallel port?
> > At least 8 easy to use data lines. > > Real easy if you are using Win98 or less or DOS. > > Win2K and XP are a little tougher. > > > > Jim >
You will need one of the VXD's that allow you to access the parallel
> > I am using Win XP. How hard would that be? > > port hardware. XP blocks applications from doing that. See: http://www.beyondlogic.org/porttalk/porttalk.htm Among others. I'm sure others here know of more drivers. Jim | |||||||||||||
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Posted by Matthew Hicks on January 12, 2007, 1:44 pm
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I used a parallel port to drive an lcd for an old school project. You need to look-up what address the port is located at, how you can get the port to automatically latch the data and a way to get access to the I/O pins directly. For the last part I use a c compiler called djgpp that makes a dos executable that can have direct access to the I/O pins. I think I used simple in(address) and out(data, address) commands to communicat but you'll have to look those up to be sure. Note that these functions are in a special library. ---Matthew Hicks > lichxx@gmail.com says...
>>
>> James Beck wrote: >> > lichxx@gmail.com says...
>> > > Hi >> > > >> > > I am working on a project where I have to send signals from a PC >> > > (RS232 >> > > or USB?) to a 4-to-16 decoder. Basically, I need a way to send >> > > signals >> > > from a PC to drive the 4 inputs of the decoder. Anybody knows an easy >> > > way to do that? >> > > >> > > I am looking for the hardware and IC components necessary that will >> > > convert the signals from the PC. Then, what software or programs will >> > > I >> > > need to code? >> > > >> > > >> > How about using the parallel port? >> > At least 8 easy to use data lines. >> > Real easy if you are using Win98 or less or DOS. >> > Win2K and XP are a little tougher. >> > >> > Jim >>
>> >> I am using Win XP. How hard would that be? >> >> > You will need one of the VXD's that allow you to access the parallel
> port hardware. XP blocks applications from doing that. > > See: > http://www.beyondlogic.org/porttalk/porttalk.htm > > Among others. > I'm sure others here know of more drivers. > > Jim | |||||||||||||
>
> I am working on a project where I have to send signals from a PC (RS232
> or USB?) to a 4-to-16 decoder. Basically, I need a way to send signals
> from a PC to drive the 4 inputs of the decoder. Anybody knows an easy
> way to do that?
>
> I am looking for the hardware and IC components necessary that will
> convert the signals from the PC. Then, what software or programs will I
> need to code?
>
>