TMS320F280049C: how to know ram and flash size compatible

Pratyush Sethi

Part Number: TMS320F280049C

How to know the size and ram consumption of the code? is the hex file generated size is the actual size? what is maximum percentage of the flash we should use?

over 3 years ago

0 Pratyush Sethi over 3 years ago

Prodigy 60 points

this the .map file of my code.

0 Santosh Jha over 3 years ago in reply to Pratyush Sethi

TI__Guru 50611 points

Pratyush,

Yes, That is actual size. If you want to monitor the RAM or Flash uses at runtime, please take a look at this video:

https://www.youtube.com/watch?v=LwxwJjq2IEg

Thanks & Regards,

Santosh

0 Pratyush Sethi over 3 years ago in reply to Santosh Jha

Prodigy 60 points

I had made changes in code which leads to hex file of 230 kb, which I can't able to flash it to the controller. Mentioned controller is having 256 kb ,

- Is there any limitation to use full capacity of flash?

- Is there any reserve flash area for other peripherals?

- Is there any fixed percentage of flash can be flashed?

+1 Santosh Jha over 3 years ago in reply to Pratyush Sethi

TI__Guru 50611 points

There is no limitation. You should be able to use full flash. Please check the linker command file for flash configuration. What is the error you are getting?

Also, please take a look at this thread. This faq post goes through all the details about flash configuration.

0 Pratyush Sethi over 3 years ago in reply to Santosh Jha

Prodigy 60 points

Hi Santosh,

I have a confusion on CCS memory allocation where it is showing Flash bank 0 and Flash bank 1 having 65534 kb each where in data sheet of TMS320F280049C having total 256 kb of flash.

1. Is there any reserve flash is there where we cant able to flash or see it in CSS.

2. If my code is will over flow from bank 0, will it link to bank 1 or it will throw a error cant be flashed? if this is occur how can we merge 2 banks to single bank for flashing ?

I added up a Screenshot of the memory allocation block.

0 Santosh Jha over 3 years ago in reply to Pratyush Sethi

TI__Guru 50611 points

Pratyush,

There will be linker error is the output section is more than memory available. There is a way to split the output section in multiple memory ranges. Please take a look at this link to understand:

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

Thanks & Regards,

Santosh

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F280049C: how to know ram and flash size compatible