TMS320F28379D: I have some problem with CLA programming

Part Number: TMS320F28379D
Other Parts Discussed in Thread: C2000WARE

I tried to trigger the CLA task via software trigger feature but it is not working.

1. I used .cmd file given in the c2000 folder named as "2837xD_RAM_CLA_Ink_cpu1.cmd"

2. I enabled the clock for CLA.

3. In main function I used Pragma for using a variable .cla file

#pragma DATA_SECTION (CLAMEMORY,"Cla1ToCpuMsgRAM");

4. I Created a .cla file in which I assigned a value to the variable as follows

__interrupt void Cla1Task1(void)
{
    __mdebugstop();

    CLAMEMORY=2;

}

5. I initialized the following registers for CLA

    asm(" EALLOW");                             

    MemCfgRegs.LSxMSEL.bit.MSEL_LS0 = 1;        // 0=CPU    1=CPU and CLA
    MemCfgRegs.LSxMSEL.bit.MSEL_LS1 = 1;        // 0=CPU    1=CPU and CLA
    MemCfgRegs.LSxMSEL.bit.MSEL_LS2 = 1;        // 0=CPU    1=CPU and CLA
    MemCfgRegs.LSxMSEL.bit.MSEL_LS3 = 0;        // 0=CPU    1=CPU and CLA
    MemCfgRegs.LSxMSEL.bit.MSEL_LS4 = 1;        // 0=CPU    1=CPU and CLA
    MemCfgRegs.LSxMSEL.bit.MSEL_LS5 = 0;        // 0=CPU    1=CPU and CLA

    MemCfgRegs.LSxCLAPGM.bit.CLAPGM_LS0 = 0;    // 0=CLA data memory    1=CLA program memory
    MemCfgRegs.LSxCLAPGM.bit.CLAPGM_LS1 = 0;    // 0=CLA data memory    1=CLA program memory
    MemCfgRegs.LSxCLAPGM.bit.CLAPGM_LS2 = 0;    // 0=CLA data memory    1=CLA program memory
    MemCfgRegs.LSxCLAPGM.bit.CLAPGM_LS3 = 0;    // 0=CLA data memory    1=CLA program memory
    MemCfgRegs.LSxCLAPGM.bit.CLAPGM_LS4 = 1;    // 0=CLA data memory    1=CLA program memory
    MemCfgRegs.LSxCLAPGM.bit.CLAPGM_LS5 = 0;    // 0=CLA data memory    1=CLA program memory

    Cla1Regs.MVECT1 = (uint16_t)(&Cla1Task1);

    DmaClaSrcSelRegs.CLA1TASKSRCSEL1.bit.TASK1 = 0;                  // 0=none/software       

    DmaClaSrcSelRegs.CLA1TASKSRCSELLOCK.bit.CLA1TASKSRCSEL1 = 0;     // Write a 1 to lock (cannot be cleared once set)
    DmaClaSrcSelRegs.CLA1TASKSRCSELLOCK.bit.CLA1TASKSRCSEL2 = 0;     // Write a 1 to lock (cannot be cleared once set)

    asm(" EDIS");

6. I used the following registers for triggering "Cla1Task1" via software trigger

Cla1Regs.MIER.all = 0x0001;            // Enable CLA interrupt 1
Cla1Regs.MCTL.bit.IACKE = 0x0001;      // Enable IACKE to start task using software (0x0001---> for task 1)

7. I am not enabling any CLA interrupt to be enabled after processing the CLA task Hence I didn't use the PieCtrlRegs.

8. I ran the code and did the following during debugging,

In debug window I selected CPU1_CLA1 and connected the target
then I loaded the symbols
but it showed "0x00000000 (No symbols are defined)"

9. Now my Question is

Am I missing anything else?
The variable CLAMEMORY=2 is not updating in the expression window.

Thank you waiting for your reply

over 4 years ago

0 Lori Heustess over 4 years ago

TI__Guru* 91215 points

Hello,

Please compare your code to one of the working examples in C2000Ware.

For instance, C:\ti\c2000\C2000Ware_3_03_00_00\device_support\f2837xd\examples\cpu1\cla_divide\cpu01

I scanned the code above and the only thing I have to suggest is #6 the write to MIER may require EALLOW protection to be disabled.

Regards

Lori

0 Gp over 4 years ago in reply to Lori Heustess

Intellectual 695 points

1. Which of the following is used for software trigger ?

            Cla1Regs.MCTL.bit.IACKE = 0x0001;        
            Cla1Regs.MIFRC.bit.INT1 = 1;

2. Does Cpu2 have separate CLA? (Because they have mentioned two CLA in datasheet)

3. Is Configuring CLA1 to either CPU1 or CPU2 possible?

4. Can I use both CLA's (CLA1_CPU1 and CLA1_CPU2) simultaneously in parallel?

0 Lori Heustess over 4 years ago in reply to Gp

TI__Guru* 91215 points

Ganeshapandi K said:

1. Which of the following is used for software trigger ?

?

1

2

Cla1Regs.MCTL.bit.IACKE = 0x0001;

Cla1Regs.MIFRC.bit.INT1 = 1;

Ganeshapandi,

In the divide example I mentioned:

These two lines are explained in the comments.
The Cla1ForceTask1andWait(); starts the task.

Also refer to this FAQ: https://software-dl.ti.com/C2000/docs/cla_software_dev_guide/debugging.html#why-can-t-i-force-a-task-using-software-iack

Ganeshapandi K said:
2. Does Cpu2 have separate CLA? (Because they have mentioned two CLA in datasheet)

Refer to the functional block diagram in the datasheet. It shows which peripherals (and CLA) is attached to each CPU.

Ganeshapandi K said:
3. Is Configuring CLA1 to either CPU1 or CPU2 possible?

No, refer to the functional block diagram.

Ganeshapandi K said:
4. Can I use both CLA's (CLA1_CPU1 and CLA1_CPU2) simultaneously in parallel?

Yes, they are independent blocks as shown in the functional block diagram.

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TMS320F28379D: I have some problem with CLA programming