CCS/MSP430FR5969: MSP430FR5969

Sandhya Yadav

Part Number: MSP430FR5969

Tool/software: Code Composer Studio

Hello All,

I am working on MSP430FR5969. I have problem related with constant variable, I am using in my project a constant variable, where exactly it will store his location, in RAM or FRAM?

I used in my project the variable as, const int Data = 2;

Can anybody please tell me, where I can see the address location of constant in memory map?

Thanks,

Sandhya Yadav

over 7 years ago

0 Mike Tooma over 7 years ago

Genius 3255 points

If you place a break in your code and hover the mouse over the variable, CCS will tell you the location of the variable.
You can actually specify where you want your variable to be stored. If you need to place the variable in a very specific memory location see the link below:

processors.wiki.ti.com/.../Placing_Variables_in_Specific_Memory_Location_-_MSP430

0 Sandhya Yadav over 7 years ago in reply to Mike Tooma

Intellectual 435 points

Hi,
Thanks for reply. Still I am unable to find the constant variable location and TI-TXT file. Can you please tell me from where I can get that file and How can I find the default location, if we are not giving the specific location for constant variable.

Thanks,
Sandhya Yadav

0 Mike Tooma over 7 years ago in reply to Sandhya Yadav

Genius 3255 points

To get a TI-TXT file:
* Right click on the project and choose properties.
* Select MSP430 Hex Utility and check the box to Enable MSP430 Hex Utility.
* Select Output Format Option and Choose TI-TXT from the drop-down list.

0 Walter Schnoor over 7 years ago in reply to Sandhya Yadav

TI__Expert 7535 points

Sandhya,

The map output file from the linker will give you the memory section and address of global variables. In CCS, this file is generated by default during a build and it goes in the /Debug folder of the project. Keep in mind that the address can change if you make a project change and re-build the project. If you are using the default linker file, global variables with a const qualifier generally go into the .const section which is linked into FRAM, not RAM.

Regards,
Walter

0 Sandhya Yadav over 7 years ago in reply to Mike Tooma

Intellectual 435 points

Hi,
Thanks for clearing my all doubts, Now I am able to find specific memory location for each and every variable given in projects.

Thanks,
Sandhya Yadav

0 Sandhya Yadav over 7 years ago in reply to Walter Schnoor

Intellectual 435 points

Hi Walter,
Thanks for reply. Yes, Now I am aware with .map file and .cmd file, so I can able to find specific memory location.

Thanks,
Sandhya Yadav

0 Walter Schnoor over 7 years ago in reply to Sandhya Yadav

TI__Expert 7535 points

Thanks Sandhya. Feel free to post again if you have any additional questions. I'll close this thread.

Regards,
Walter

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CCS/MSP430FR5969: MSP430FR5969