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Trusted Enthusiast
Albert.Geven
Posts: 3,346
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Re: Rs-232 digital potentiometer using SPI and USB-6008

Hi

why can't it work?

and it seems you really are in a hurry after a few weeks silence

greetings from the Netherlands
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ankitsharma
Posts: 19
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Re: Rs-232 digital potentiometer using SPI and USB-6008

[ Edited ]

i tried a lot,it can not change the value of resistence of digi pot mcp41010..can you give me the right programme...

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dalvares
Posts: 27
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Re: Rs-232 digital potentiometer using SPI and USB-6008

Hi Albert, Sorry I think there is some confusion.:smileyhappy: Its another user who seems to be in a hurry after not myself.  I haven't had the chance to look back on it and it seems like I might not need it after all as I just purchased a couple of ICs that can better solve my problem. 

 

Ankitsharma. I suggest using possibly the 7555 as your clock signal 

 

Cheers, 

Darren 

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ankitsharma
Posts: 19
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Re: Rs-232 digital potentiometer using SPI and USB-6008

can you briefly tell me,how can i use 7555 to generate the clock

Knight of NI
Posts: 18,064

Re: Rs-232 digital potentiometer using SPI and USB-6008


ankitsharma wrote:

can you briefly tell me,how can i use 7555 to generate the clock


Perhaps you should consider actually looking at a datasheet?

Trusted Enthusiast
Albert.Geven
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Re: Rs-232 digital potentiometer using SPI and USB-6008

sorry Darren, did not look deep enough

greetings from the Netherlands
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kamil8
Posts: 10
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Re: Rs-232 digital potentiometer using SPI and USB-6008

hello

I know this is a fairly old post but I have a similar problem to control digital potentiometer with USB 6008 now. I also use SPI digpot

Did you succeed to change digital potentiometer resistance with USB 6008 using RS232? Can you give me clues about how can I do it? I don't quite understand with the attached files in this thread

I'm very stuck now

thank you

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kamil8
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Re: Rs-232 digital potentiometer using SPI and USB-6008

or did you just use arduino?

Active Participant
Daniel-E
Posts: 459
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Re: Rs-232 digital potentiometer using SPI and USB-6008

Hi kamil8,

 

To be clear, are you using LabVIEW, or another NI software product to communicate with the digital potentiometer, or is this a separate program using the DAQmx API?

 

I might suggest making a new thread for your question so that other forum responders can see that you have a new question and be more able to help you out, even if the question is similar (as you said, this is a fairly old thread).

Daniel E.
TestStand Product Support Engineer
National Instruments
CTA/CLD