RTOS/CC2640R2F: Memory allocation calculations not adding up.

Viggo BF

Part Number: CC2640R2F

Tool/software: TI-RTOS

Hi,

I am workingwith the simple peripheral oad off chip example, trying to figure out the memory allocations.

When using the memory allocation viewer in debug mode i dee to get only 16368 bytes of SRAM. while I am working on a system which defines

#ifdef CC26X0ROM
#define FLASH_SIZE 0x00020000
#define GPRAM_SIZE 0x00002000
#define RAM_SIZE 0x00005000
#define ROM_SIZE 0x0001C000
#endif /* CC26X0ROM */

I wondered if this was because I have multiple projects, (stack and BIM), but looking at those, numbers are not adding up.

Where is my missing 4112 bytes of RAM at the moment? anyone know?

over 8 years ago

0 JXS over 8 years ago

TI__Guru** 105180 points

Hello,

The CC26xx has 20kB of physical SRAM. Some of this SRAM is reserved by the linker for library code residing in ROM; that's why you see the application having less than 20kB available.

Best wishes

0 Viggo BF over 8 years ago in reply to JXS

Intellectual 905 points

Hi,

Thanks, do you know of any way to know the amount of SRAM that will be reserved?
any rules of thumb to follow, or something like that to avoid those sneaky stack overflows.:-)

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RTOS/CC2640R2F: Memory allocation calculations not adding up.