2 COM port swithching at once!!!

[Ranjeet_Singh]

 For testing purpose I made *A50$ to *A0$ so all the time I need to read 4 bytes. I tought this will make some difference but here also Its failing.  I will write and read * AA$ in same VI and will let you know.

Thanks a lot for your efforts gyus. Really greatful 

[Nathan_B.]

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@Ranjeet_Singh wrote:

 For testing purpose I made *A50$ to *A0$ so all the time I need to read 4 bytes. I tought this will make some difference but here also Its failing.  I will write and read * AA$ in same VI and will let you know.

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What?  I thought you said you can't change the Arduino output format.  This is really confusing especially without any information about your Arduino code.

[Ranjeet_Singh]

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@Nathan_B. wrote:

What?  I thought you said you can't change the Arduino output format.  This is really confusing especially without any information about your Arduino code.

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I am not at all changing arduino output format. This is resonse of output and I am just changing range of response I am getting from arduino. This is user defined. Somethinhg like testing sequence. Initially it was set to *A0$ to *A50$....here number of bytes are 4 and 5 so for worst case I was using 5. For crosschecking I changed upper response from *A50$ to *A0$ to make bytes to read as 4 in all the time

[Ranjeet_Singh]

I am using a testsequence in which I am sending total 35 times including all the commnads.

I changed all the command with *AA$ and in which upperresponse as *A50$ after timeout error also 35 times it got passed. I tested total 7 times test passed.  then I changed the upperresonse to *A0$ then also it got passed. 

What you suggest now?

[Nathan_B.]

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@Ranjeet_Singh wrote:

I am using a testsequence in which I am sending total 35 times including all the commnads.

I changed all the command with *AA$ and in which upperresponse as *A50$ after timeout error also 35 times it got passed. I tested total 7 times test passed.  then I changed the upperresonse to *A0$ then also it got passed. 

What you suggest now?

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To be honest, I don't really know what you just said.

So, you changed all of the commands in your test sequence to "*AA$" and it worked without errors?

[Ranjeet_Singh]

Yes command sent was *AA$ and response range upperresponse I changed *A0$ and *50$ and in both the cases it worked fine.

[Ranjeet_Singh]

You see one test sequences have total 35 command response. i.e. total 35 times read and write. When once it got complete all 35 without error I say test passed.

Now I changes upperresponse *A0$ and *A50$. In later case I was getting timeout error becasue worst case byte need to read was 5 and actual 4. In both the ccases it was passed

[Nathan_B.]

I'm having a hard time understanding what you are saying but do you now understand what is going wrong?

[Ranjeet_Singh]

See I will explain now

Label	Command	Lower Response	Upper Response
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
test	*AA$	*A0$	*A050$
Off	*S$	*SOK$

This is my test sequence. For one test when all these read write passed then I say testing it passed. Now I tested in two condition one in which upperresponse is *A50$ and other in which *A0$. In both the case it passed. I run complete above test for both the cased i.e total 7 time all above command and it got passed

I have no idea what is going wrong?

[Nathan_B.]

Well, if that one particular command works, test a different one and see if there is a specific one that is breaking things.