Propeller Communication with Ser.Putlong Question

Andy_ouhsc

Hello,
I am working on a project which requires the communication between the program Labview and Propeller.
So far I have it working, partially working, there exists a problem/ a question I have...
Object:
ser: "Fulldeplexserialplus"

I know ser.putlong(somerandomvariable) can transmit my number to my other program of Labview, I can then display the value on some sort of graph.

My main question/concern is that I am gathering two different values to transmit it through Labview.

Example: My propeller is measuring the 8 total values of a and b at the same time. (4 a+ 4b through repeating loops)
Let's say it would be like.... a=1, b=2 ......a=3, b=4.....a=5,b=6.....a=7, b=888
I know that ser.putlong(a) and ser.putlong(b) are both required.
I want in Labview, a display of "a": 1,3,5,7 and a display of "b": 2,4,6,8

I DO NOT want : 1,2,3,4,5,6,7,8


How would I distinguish a and b when it goes into Labview? Can this be fixed through propeller?


Thanks,
Andy

doft

Hello,

You could try sending values a as signed positive and b as signed negatives. That would make it easy to differentiate between the two. All a values greater than 0, all b values less than 0. You can fix b values by multiplying them by -1 in labview.

Andy_ouhsc

Thank you, but sorry that does not answer my question.
My values contain both positive and negative numbers in the project for both sets of data.

John Abshier

Why not read the 8 values into 2 arrays (a[0] to a[3] and b[0] to b[3]). Then send the 4 a values to Labview followed by the 4 b values.

John Abshier