How to generate CLOCK signal!!!

[Erik_J]

Hey swami,

If you want to output a bit on each clock high, then you are going to want to do correlated DIO, but I am a little confused by your pattern logic.

You say that 1000 0000 0000 0000 0000 is MUX 1 and Line 0 (INP0).  Does this imply that 1000 = Line 0?

You also say that 0000 1001 0000 0000 0000 is MUX 2 and Line 9 (INP9).  I take this to mean that 1001 = Line 9.  1000 = Line 0 and 1001= Line 9 does not make sense.

I can write example that allows you to select the MUX # and Line # and will return according to the following logic:
MUX 1, Line 1: 1000 0000 0000 0000 0000
MUX 2, Line 9: 0000 1001 0000 0000 0000

Can you provide further examples to help clarify what logic you need?

Thank you,
Erik J.
National Instruments

[bhotu]

Hi! Erik,

thanks for ur reply.

As I told you, 5 Mux IC connected Serially. For Selecting One IC I need 4 bits. That 4 bits make truth table and select INP0 - INP7. for selecting any input of those 5 IC I need 20 bits which are shifting one by one. If I talk abt only first MUX and 4 bits the pattern should be, 1000 - INP0, 1001-INP1......1111-INP7. like that. All five IC connected serially, we can select only one input at a time. If i want to select INP0, I have to shift 20 bits and pattern should be 1000 0000 0000 0000 0000. It will select only INP0 and gives the analog voltage of INP0. like that I have to measure INP0 - INP39.

second example, If I want to select INP8, than line 0 of second mux- so pattern should be 0000 1000 0000 0000 0000.

"1" shows Enable.  for INP17, line 1 of MUX3, so pattern should be 0000 0000 1001 0000 0000.

For INP 39, line 7 of MUX 5, so pattern should be 0000 0000 0000 0000 1111.

This works automatically one by one and select each line and write the status of each line.

thanks

[Erik_J]

Hi swami,

Thank you for the clarification, I understand now!  I have written a small example that executes the bit logic that you demonstrated here in LabVIEW.  I believe this example is a good starting point for you, I hope it helps!

Regards,
Erik J.