Error Connecting to Target (F28062) - Reserved ISR

Hi,

Did you try restarting the PC and running a sample code? Does it work then?

Regards,

Gautam

I fixed the issue. It was a problem with the system clock setup.

On a different matter, do you have any idea how I can find out what frequency the internal oscillator has been set to. I am using a F28062 device.

Thanks

Thank you for your help.

I was hoping you could help me with one last problem. Im having trouble getting the FastRTS supplement library working with my project. The functions seem to be returning incorrect values. This problem started after I updated Code Composer.

Do you know what might be causing this issue.

Thanks in advance.

Faizan

Hi Faizan,

Did you go through this doc thoroughly? If you follow all the steps properly, you should not face any issues.

1033.controlSUITE_C28x_FPU_FastRTS.pdf

Regards,

Gautam

Hi Gautam,

I did go through the doc step by step. I tried running the project on an F28069 and I get correct results, but when I try it on the F28062, the results are incorrect. 

Do you know if there is a compatibility issue, or maybe some other problem I'm not thinking of.

Thanks in advance,

Faizan

Gautam,

Here is a little more description on the problem that I am having. 

When I run the project on an F28062 and have the fastRTS library linked in first, I get incorrect results from the math functions.

This test was done using the 28062_RAM_lnk cmd file. The fastRTS lib was added to the C2000 linker File Search Path.

The fastRTS library was at the top of the link order.

From the .map file I can see that the cos function is coming from the fastRTS library.

Now the same code was run on a F28069. The linker cmd file was changed to  28069_RAM_lnk.cmd. The target device was changed in the project properties. The project was rebuilt and run. The results were as follows:

I am quite confused as to why this might be happening. Have you any thoughts on what the problem might be?

Thanks in advance.

Faizan

Oh... so the result is varying wrt controllers. This should not happen as both have FPUs and belong to the same family. Did you try running on flash? This should not affect though.

Regards,

Gautam

I have tried running the project from flash, but the results are the same.

Regards, 

Faizan

I hope then the settings for both the controllers are exactly same except the cmd files. Other than that I don't feel there should error in the result. Lets wait and watch what my TI buddies have to say.

Yes, the only difference between the projects is the cmd file. All other settings are the same.

After doing some more research into the problem, we have noticed that the values at the memory addresses where the FPUmathTables are stored are different for the F28062 & the F28069.

So were you able to get the results?