TMS320F28379D: CLA EXAMPLE PROGRAM LAB-9

Part Number: TMS320F28379D

Hi, This is Ganeshapandi. In lab exercise 9, CLA initialization is done in a manner for storing CLA program data in memory location RAMLS4 using the following command

	MemCfgRegs.LSxMSEL.bit.MSEL_LS4 = 1;        // 0=CPU    1=CPU and CLA

	MemCfgRegs.LSxMSEL.bit.MSEL_LS5 = 0;        // 0=CPU    1=CPU and CLA

But I could not understand the usage of following command found in lab_9.cmd

   Cla1Prog            : > RAMLS4,                PAGE = 0

Does the above line helps to store CLA program data in memory location RAMLS4 or for what purpose that command exists?

Note : I am using ClaTasks_C.cla file for CLA Tasks. (Not ClaTasks.asm)

Thank you!

over 5 years ago

0 Siddharth Deshpande over 5 years ago

TI__Mastermind 36305 points

Hi Ganeshapandi,

The linker command file is used to allocate the output sections in the code to memory. When you load the program to the device, these sections get loaded to the specified memory ranges.

Refer the following link to understand more about the linker command file.

http://software-dl.ti.com/ccs/esd/documents/sdto_cgt_Linker-Command-File-Primer.html

Best Regards

Siddharth

0 Gp over 5 years ago in reply to Siddharth Deshpande

Intellectual 695 points

Thanks Siddharth Deshpande. I could not find that how the program data in file ClaTasks_C.cla gets stored in this particular RAMLS4 location?

When I comment out the following line, debugger shows Cla1Prog Data section is not specified.

Cla1Prog            : > RAMLS4,                PAGE = 0

But I could not find where this section "Cla1Prog" is used in Program?

0 Siddharth Deshpande over 5 years ago in reply to Gp

TI__Mastermind 36305 points

Hi Ganeshapandi,

Files that have a ".cla" extension are recognized by the compiler as CLA C file and the code generation tools (CLA compiler) place the code sections within such files (extension *.cla) in the "CLA1prog" section automatically.

Best Regards

Siddharth

0 Gp over 5 years ago in reply to Siddharth Deshpande

Intellectual 695 points

Thanks a lot Siddharth Deshpande. My final question is , Is the word "CLA1prog" predefined or Can I change the word to my favour? Because I tried to change that but it didn't work.

Once again thanks and sorry for late replying (My office was on leave).

0 Siddharth Deshpande over 5 years ago in reply to Gp

TI__Mastermind 36305 points

Hi Ganeshapandi,

Yes, it is predefined and cannot be changed. As I mentioned, all the code sections within ".cla" files are placed in the "CLA1prog" section automatically.

Best Regards

Siddharth

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TMS320F28379D: CLA EXAMPLE PROGRAM LAB-9