TMS320F28035: Resolver decode base on TMS320F28035

Hi Wenbo,

For your question 1, are you running the program from Flash? This looks like you are running from flash, but failed to copy the RAM function DSP28x_usDelay from Flash into its linked location in RAM.

We will loop in our CLA support for your second question. Thanks.

Han

Hi，HanZhang6：

谢谢，我看程序里编译开关FLASH是没有开启的，也就是没有启动memcopy的函数，我打开编译开关后再试试。

第二个问题您再帮忙看看，毕竟是TI例程，不应该有问题的。

以下是我的问题的英语翻译：

Here is the English translation of my question:

At present, I am using the routine project in TI's contolsuite. The project has been uploaded. The current problem is:

1. Run to DSP28x_usDelay(1000); the program runs away when the program is running

2. The program in CLA cannot be run, and the following alarm occurs:

CLA_0: Can't Run Target CPU: (Error -2060 @ 0x0) Requested operation cannot run

It stands to reason that using TI's routine should not have such a problem, please help to solve it as soon as possible, thank you!

Hi,

wenbo yang said:

. Run to DSP28x_usDelay(1000); the program runs away when the program is running

I did not understand. Do you mean when trying to execute this function, it is jumping to some different location?

wenbo yang said:

The program in CLA cannot be run

Do you have CLA tasks defined in your application and are they getting triggered?

Regards,

Veena

when I set the DSP28x_usDelay(1000) running addres to RAM,the TMS32028035's main CPU can run the program.But the CLA can't run program.

I have defined CLA tasks and getting triggered as below code:

Cla1Regs.MVECT1 = ((Uint32)Cla1Task1 - (Uint32)&Cla1Prog_Start);
Cla1Regs.MVECT2 = ((Uint32)Cla1Task2 - (Uint32)&Cla1Prog_Start);
Cla1Regs.MVECT3 = ((Uint32)Cla1Task3 - (Uint32)&Cla1Prog_Start);
Cla1Regs.MVECT4 = ((Uint32)Cla1Task4 - (Uint32)&Cla1Prog_Start);
Cla1Regs.MVECT5 = ((Uint32)Cla1Task5 - (Uint32)&Cla1Prog_Start);
Cla1Regs.MVECT6 = ((Uint32)Cla1Task6 - (Uint32)&Cla1Prog_Start);
Cla1Regs.MVECT7 = ((Uint32)Cla1Task7 - (Uint32)&Cla1Prog_Start);
Cla1Regs.MVECT8 = ((Uint32)Cla1Task8 - (Uint32)&Cla1Prog_Start);

Cla1Regs.MPISRCSEL1.bit.PERINT1SEL = CLA_INT1_EPWM1INT; //CLA_INT1_NONE;
Cla1Regs.MPISRCSEL1.bit.PERINT2SEL = CLA_INT2_NONE; //CLA_INT2_ADCINT2;

Hi,

We will get back to you this shortly

Regards,

Veena

wenbo yang said:

2. The program in CLA cannot be run, and the following alarm occurs:

CLA_0: Can't Run Target CPU: (Error -2060 @ 0x0) Requested operation cannot run

It looks like you are using the "run" or "resume" button in Code Composer Studio to try and run the CLA task. If the CLA is idle then this will not work.

CLA can't be "run" from Code Composer Studio unless it is already triggered and halted at a breakpoint.  To order to start CLA execution from an idle state a peripheral or a SW write to the force register must trigger it. 

If the CLA is stopped on a breakpoint, then  you can use the "run / resume" button to run further.

Please see this related post:

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/589162?RTOS-TMS320F28377D-after-connect-CLA-of28377d-load-symbol-error

Debug tips in the CLA Software Development Guide may help as well:

https://software-dl.ti.com/C2000/docs/cla_software_dev_guide/debugging.html

Regards

Lori

cla1 task2 dose not contain frame information

This is normal.  The Cla1Task is an entry point so there is no stack / frame to unwind.  

I find ADCINT2 can’t trigger Cla2Task.And in the CLa2 task can’t clear ADCINT FLAG.

Hi Wenbo,

Our CLA expert is out of office for the remainder of the week. Please anticipate a response beginning of next week.

Thank you,

Peter

OK，thanks a lot.I hope Ti can help me to resolve this problem.

Hello,

Does the ADCINT2 interrupt run the CLA task once? Or does the task not run at all?

Is the CLA, and interrupts, all configured before the ADC?  If the ADC interrupt comes in before the CLA configuration is complete it may be missed. 

Regards

Lori

Hello，Lori：

Interrupting ADCINT2 will only trigger the CLA task once. It won't trigger after that. The CLA interrupt is configured before the ADC interrupt.

Best regards

Yang wenbo 

On this device the CLA does not have access to the ADC configuration registers; it can only read the ADCRESULT registers.  It will be easiest to set the INT1CONT bit so that the ADC will continue to function without ADCINTFLG and ADCINTOVF servicing.

Hello,Lori:

• Thanks for your reply.According to your reply,I should set CLAINT program in main CPU to configure ADC register.

Hello Lori:

Thanks a lot.I will try.

Best regards.

Hello Lori:

I set INT2CONT flag in my code.But no effect.

My set code:

Best Regards

Yang wen bo

Please take a look at this example in https://www.ti.com/tool/C2000WARE

C:\ti\c2000\C2000Ware<version>\device_support\f2803x\examples\c28\cla_adc

Regards

Lori

Hello,Lori:

       Thanks for your reply.According to web link you sent to me,I modify my code and my project.But ADCINT2 can trigger CLAINT2 task only once.I don’t know what’s the trouble in my project.

Best regards 

Yang wen bo 

Wenbo,

Did you try the project I mentioned?  Does it work correctly?  If yes, then there must be something different in your project.  

-Lori

Hello, Lori:

           I try the project that you mentioned in your reply.But this prijuect can't work correctly.I don'konw the reason.

Best regards

Yang wen bo

Wenbo,  I will look into the C2000Ware project and get back to you.  It may take me a couple of days. 

Regards

Lori

Wenbo,

This project should work as it is.  Can you describe how it is not working for you?  

Regards

Lori

Hello Lori:

     ADC interrupt only once when first one.And ADC interrupt flag was not cleared.

Best Regards

Yang wenbo

Yang,

Using the example provided by TI, can you share a screen capture of your ADC registers after configuration?

I want to confirm the continuous mode (INTxCONT) is set.  

If in continuous mode then the interrupt flag is ignored - that is interrupts are still driven even if the flag is set. 

-Lori

Correction to my previous question.  This is the cla_adc example. 

1) You will need to change the code marked below to set the continuous mode. (set the bit to 1) 

2) Then in this ISR you can comment out the clear of the interrupt flag (comment out the line below):

The interrupt should still come to both the C28x and the CLA even though the flag is still set.  

Hello,Lori:

       A screen capture of my ADC register after configuration is bellow.

Check when the peripheral initalization is done. A CLA task only triggers on a level transition (an edge) of the configured interrupt source. If the peripheral triggers an interrupt before the CLA is initalized, then it can be missed. One way to get around this is to clear the interrupt flags from the peripherals.

I would expect this to impact even the first interrupt so it doesn't seem to be the case.  Please do check.  

If the C28x clears the interrupt flag, as shown in the cla_adc example, does the code work?

Your screen image is for a resolver project.  Can you try with the cla_adc project?  It is a very simple project. 

Hello Lori:

According to your instructions.I decided to try cla_adc project.But I account followed problems:

I install c2000 ware and import cla_adc.Then ccsv8.3 display “it’s compiler definition is not available”.Then I install TI v22.6.0 LTS compiler.

And I try again import cla_adc, the same error message display again.I don’t know the cla_adc project’s compiler’s version. And how to import cla_adc.

My c2000 ware version is 4_01_00_00.

Expect your help.

Best regards 

Yang wenbo 

Hi Yang, 

I will be out of the office today (Tuesday).  I will look into this and get back to you on Wednesday. 

-Lori

Hello,Lori:

     When I installed TI v22.6.0 LTS compiler,last question has been resolved.And cla_adc project can be complied.

Then I try the cla_adc projrcet.I found that cla_adc project's cla code can be triggered only onece and then suspended,not running.

The picture is below:

The flag of the  AdcRegs.ADCINTFLG.bit.ADCINT2 and AdcRegs.INTSEL1N2.bit.INT2CONT is both "1".

I don't know the reason.Expect you reply.

Best regards

Yang wenbo

Yang,

The CLA will only run for a very short time and then go back into idle (suspend).  It then waits for the next trigger.  It will be difficult to tell if it is running periodically by viewing the windows in your screenshot.

To test if it is running multiple times:

• Check the value of "ConversionCount" in the expressions window.
• CLA task 2 increments it each time through the task until it reaches NUM_DATA_POINTS. 
• When ConversionCount reaches NUM_DATA_POINTS, the CLA resets the count to 0 and starts to increment again.

Use the "continuous refresh" button to see the value update. 

Regards

Lori

Hello Lori:

     According to your suggestion.I run the cla_adc project. And watch the “ConversionCount”. ConversionCount is always “60959”.

       Picture is below:

The  CLA is currently stopped on a breakpoint (MDEBUGSTOP).  change CLA_DEBUG to 0 and rebuild the code.

Hello，Lori：

        When  I comment out the MDEBUGSTOP code, the ConversionCount ‘s value can update.

       But in the Resolver project, the “index” value can’t update.I don’t know the reason.

Best regards

Yang wenbo 

Yang,

Since you have a working project, I suggest comparing the two projects.  

Regards,

Lori