CCS/TMS320F28035: How long excuting a addition statement use TMS320F28035?

Use Profile Clock:

cDear Whitney,

I used the oscilloprobe to test, choose a IO pin set low level before the ++ statement , and the IO pin become high level after completed the stament. The screenshot as below.

How to upload the project files? Could you help me check the source code?

Thanks.

Jacking

Hi Jacking,

You can put your project files into a .zip file and attach them using the "Insert File" button in the rich formatting post editor. I'll take a look at them.

In the meantime, you can also try measuring the execution time using some of the methods that Gautam linked to in his post above and see if you get different results.

Thanks,
Whitney

Dear Whitney,

Thanks for your reply! The attachment as below.

F28035(DPSON).zip

Dear Whitney,

Can  you received the files? Please kindly help me to solve it. Thanks very much!

Hi Jacking,

I looked over your code and I don't see anything that would account for the long execution time. Can you use the "profile clock" method in that wiki page that Gautam posted a link to to measure how many cycles it's taking? Also, how fast is your system clock running?

Whitney

Dear Whitney,

The system clock is 60MHz. I uesd the test code as below. Could you kindly help me to test it? Thanks very much!

Another, I used the compiler environment is CCS6.0, I don't konw the InitSysCtrl() function configures whether have problem, Could you help me to check it?  I had upload the test project again. Thanks very much!

Dpson_Pmsm_F28035.rar

Best regards!

Jacking

Dear Whitney,

Thanks! I will check it  by profile clock.

Could you kindly help me analysis why use the oscilloprobe test appear a long time? The problem confused me for a long time. Thanks very much!

Best regards!

Jacking