ccie

Hi shawn , im sure it is a full wave circuit , i am just wondering why it dosent display curves as a normal oscilloscope , what im trying to say is how do i interprete this graph to my supervisor at my final year project defense

QUOTE (crossrulz @ Apr 30 2009, 06:57 PM)

Hmmmm....this VI looks very familiar. Is your boolean "Send Parameters" is set to TRUE? Are you referencing the right COM port VISA session? Is there some weird error coming out of the Serial Port Setup VI? These would be the software problems possible. I am assuming that you are sending out the right data byte since I previously helped somebody else with this exact VI (must have gotten it from a teacher). After the software checks, I would check your wiring (TX to TX will not work well) and then your microcontroller code. My gut feel is your boolean is set to false and therefore you will not send out the byte.

My boolean is set to true and evry other thing seems fine.

for example if i send an F via the serial port the microcontroller shud match this ascii string and send a one out a microcontroller pin.

ive been on this 4 days an it is really freaking me out.

pls help

QUOTE (ccie @ Apr 30 2009, 10:42 PM)

by the way i am petersrule2003

Hi all ,

i have been able to display a waveform from a real circuit , but the problem is i have not been able to display it at the right speed it appears to fast on the waveform graph . please can anyone help me modify my code to sample the serial port bytes at 250ms and display it so that it will be a lot slower to the eye.Or is dere any way to adjust the wavefor so that it can be a lot slower to the eye for analysis

Secondly can anyone pls help me display nothing on the waveform graph when bytes are not in the serial port.

i am using labview 8.0

Thanks for ur anticipated response

QUOTE (confidence @ Apr 13 2009, 01:36 AM)

when you remove the rectifer output, no byte is to be read! your waveform couldn't be refurbished, so it's still display as before.

Thanks confidence and downloaders,

So labview does display what ever bytes it receives in real time ? [yes|no] , the reason for asking this is cos i need to know where the problem lies(either in ucontroller program or labview)

I am really new to labview , pls can anyone modify my code to display nothing if no bytes exist at the serial port and upload.

Thanks

Love

Zinedine.

Hi all , i have successfully displayed a full wave rectifier on labview waveform graph via a serial port thRough a microcotroller , but when i turn off supply to the rectifier i expect the rectifer output to be removed from the labview waveform graph but it still gets displayed , why is it so ? and is there any way to make the waveform change in real time.

find the attached VI

Hi guys here's the VI i created for my final yr engineering project , pls i just joined this forum and i commend what the organisers and experts are doing .Pls here is my code to control a real circuit via a serial port and read the output of the circuit(that has been passed thru an ADC implemented on a microcontroller) and plot it on a waveform graph(scaled down version of an oscilloscope).

Pls ill appreciate any comments and suggestions and errors u might have noticed.

Users will be able to change parameters any time the program is running and be able to view the effect of such changes in real time on a voltage againt time graph(oscilloscope)

Thanks for ur anticipated repply

Love

ccie #23xxx