Program Execution Time

Bhavdipsinh Rathod

Expert 2225 points

Hi,

Please find below some part of my code.

Part: A

Vr.Mean = _IQ18sqrt(Vr.Mean);
Vr.RMS = _IQ9mpy(Vr.Mean,1);
Vr.RMS = _IQ18mpy(Vr.RMS, SinglePhase_FSMul);

Part: B

Ir.Mean = _IQ18sqrt(Ir.Mean);
Ir.RMS = _IQ9mpy(Ir.Mean,1);
Ir.RMS = _IQ18mpy(Ir.RMS, SinglePhase_FSMulCrnt);

Both are identical,

1. When I was use only Part:A or Part:B in my code and run the program, Entire code execution time was 37 uSeconds

but the problem is:

When I use both Part: A and Part:B in my code, Entire code takes 387 uSeconds...!!!!!!!!!!!!!!!!!!!!!!!

I cant able to figure out it?

Please help me.

Thanks

over 8 years ago

0 Ryan Brown1 over 8 years ago

TI__Guru**** 202256 points

Hi Bhavdipsinh,

I am pulling in someone who works extensively with IQMathLib to review your question, please allow them a few days to formulate a response.

Thanks,
Ryan

0 Brent Peterson over 8 years ago in reply to Ryan Brown1

TI__Intellectual 1930 points

Bhavdipsinh,

Can you please include the whole program that you used to measure these cycles or a simplified example that I can test? Just the two code snippets is not sufficient to debug this problem since it's likely to be something caused by the way the code is compiled when you're including both functions (or not included when compiling just one...).

Thanks,

Brent Peterson

0 Leo Bosch over 8 years ago in reply to Brent Peterson

Guru 23000 points

Again a twin thread, see e2e.ti.com/.../447183.

0 Bhavdipsinh Rathod over 8 years ago in reply to Leo Bosch

Expert 2225 points

Thanks Leo,

This happen because I cant reply and even not able to see my first post (may be internet issue/website issue) after one day so I thought to re-post it.

If you have any good answer then only reply me. I am going to remove one post.

Thanks.

0 Bhavdipsinh Rathod over 8 years ago in reply to Ryan Brown1

Expert 2225 points

Thank you so much Ryan,

Please let me know If you need any inputs. bhavdip@ospl.in is my email ID, Please share it with your expert and ask for any information required.

Thanks

0 Bhavdipsinh Rathod over 8 years ago in reply to Brent Peterson

Expert 2225 points

Thanks Brent,

Please send test e-mail on bhavdip@ospl.in
I will share code with you.

Thanks

0 Leo Bosch over 8 years ago in reply to Bhavdipsinh Rathod

Guru 23000 points

BHavdipsinh Rathod said:
This happen because I cant reply and even not able to see my first post (may be internet issue/website issue) after one day so I thought to re-post it.

Ok, thanks for the explanation, this may explain why there lately so many double discussions. Perhaps either TI experts here watching.

The content of the .map file speaks for itself. Keep both programs configurations .map file under a different name. Open both files and compare them, note the use of RAM and FLASH. Under .text see which functions from certain libraries have been added and at what address, compare the difference in both these .map files.

0 Ilmars over 8 years ago in reply to Leo Bosch

Guru 46710 points

>Ok, thanks for the explanation, this may explain why there lately so many double discussions. Perhaps either TI experts here watching.

This is about forum host system which happens to temporarily remove threads/posts for moderatorial based on yet unknown preconditions. I noticed that my posts sometimes disappear when I edit them immediately after post. Hopefully Blake will elaborate

0 Bhavdipsinh Rathod over 8 years ago in reply to Bhavdipsinh Rathod

Expert 2225 points

Hello All,

thanks for your suggestions and support.
yes,
We resolved it. After discover/analysis with different ways, We came to know that during program execution, Clock was going in unstable for an event so pointer was looping randomly which was increased the time.

Now, Controller takes 50uSecs to calculate Voltage and Current.

Regards
Bhavdipsinh

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Program Execution Time