buffering recieve data from serial port

[benyamin]

thanks crossrulz

that guide actually solve most of my problems.

[benyamin]

thanks for replaying hatef.
i think im gonna do this and put some key on labview for starting send/recieve data.

[benyamin]

dear crossrulz
after ploting data on waveform chart,the process of recieving data and plot it takes long about 6 or 7 minute,how could i see all of the data on the chart?
because i cant scroll the chart and only i see the last 10sec data.
and what can i do for time axis to shown in ms?
and how should i export all of the data (full chart) to image?(when i export it only the last 10 sec will be shown)
thanks

[crossrulz]

1. You can change the length of the history for the chart.  If you want 10 minutes worth, that would be 10*60*1000 = 600,000 samples.

2. You can right-click on the chart and change the x-axis scale

3. You can right-click on the chart and choose to export to an image.  If you want a limited amount of data in the image, then you will want to change your scale first.

[benyamin]

for last question:
my result have noise floor and some peaks
there is way to calculate the area of peaks?
something like integrator?

and could i see the time that peaks happen?
thanks alot

[crossrulz]

In the Signal Processing->Signal Operation palette is a VI called Peak Detection.  I don't think it gives the integral, but it does give the amplitude and location for you.