TMS320F28388D: Combine CM linker sections C1RAM and C0RAM

Arjan Oskam

Intellectual 510 points

Part Number: TMS320F28388D

Hello there,

The default CM linker file contains these MEMORY sections:

C1RAM : origin = 0x1FFFC000, length = 0x00002000
C0RAM : origin = 0x1FFFE000, length = 0x00002000

I could redefine this to a single section:

C1C0RAM : origin = 0x1FFFC000, length = 0x00004000

Would that cause any problems? If a buffer in my application crossed the C1/C0 boundary, would that cause a failure?

Basically I want a (relatively) big memory section where I can place all my stacks: the system stack and the SYS/BIOS task stacks.

Kind regards,
Arjan

over 2 years ago

0 Siddharth Deshpande over 2 years ago

TI__Mastermind 36055 points

Arjan,

The linker will throw an error if it is a static/constant buffer. During runtime, the application needs to ensure that it is not exceeding the memory allocated.

Best Regards

Siddharth

0 Arjan Oskam over 2 years ago in reply to Siddharth Deshpande

Intellectual 510 points

Hi Siddharth,

I tried and it seems to work OK. The stacks are all allocated to C1C0RAM OK, and after the stacks I have an IPC FIFO buffer that crosses the C1/C0 boundary at 0x1FFFE000 (see the bottom picture) without problems.

Kind regards,
Arjan

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28388D: Combine CM linker sections C1RAM and C0RAM