Advantech PCM-3350 Specifiche Scaricare il pdf (Pagina 17)

This experiment, as you see is similar to exp 1.3; although, here you are using the D/A and A/D modules

to transmit and receive the signal. Remember, that the D/A cannot transmit negative voltages. Connect the

ports you configured in the blocks with their corresponding pins on the screw terminal using wires

supplied to you in the lab. You should be able to see the waveform on the monitor.

In the second part of this experiment, you will determine the delay in A/D conversion. To do this, modify

your model files as shown below.

You may use the xpctargetspy command on the board running exp1_4_a2 then measure the difference in

the transmitted and looped back signal. The delay in one side of the conversion is then half of what you

measured off the screen.

Now, you will learn how to log and save data, this can be any signal, on to the flash disc. Add a new

target scope to the output of your exp1_4_a2 mux (multiplexer). Configure it as shown below. This

method configures the scope as a file scope. It saves the data in a file by the name specified in the

“Filename” box. Build and run your model and follow the next procedures to have the data transferred to

MATLAB workspace.

1 2 ... 12 13 14 15 16 17 18 19

Nessun commento

Advantech PCM-3350 Specifiche Pagina 17