CC2530: Side effects that can occur when changing heap size?

robin Moon

Expert 1550 points

Part Number: CC2530
Other Parts Discussed in Thread: Z-STACK

Hi,

My customer is magrating zstack-2.3.0 to zstack-3.0.2.

However, a RAM shortage issue occurred in the coordinator device.

what are the side effects that can occur when reducing heap size?

He changed INT_HEAP_LEN from 3072 to 2048 as below.

#if !defined INT_HEAP_LEN
#if defined RTR_NWK
#define INT_HEAP_LEN 2048 //danny ***************//////3072 -org
#else
#define INT_HEAP_LEN 2048
#endif
#endif
#define MAXMEMHEAP INT_HEAP_LEN

map file attached.

thanks,

regard,

zstack2.3.0_coordinator.txt

over 5 years ago

0 YiKai Chen over 5 years ago

Guru 735695 points

Try to refer to

0 Ryan Brown1 over 5 years ago

TI__Guru**** 220347 points

Hi robin,

Reducing the heap too much could affect performance during high traffic situations, especially during device commissioning. Please compile with the recommended Z-Stack 3.0.2 IAR version (EW8051 10.20.1) for the best results.

Regards,
Ryan

0 robin Moon over 5 years ago in reply to Ryan Brown1

Expert 1550 points

hi Ryan.

thanks for reply.

I have one more question.

what is the saved data in the heap?

this system only have 4 end device and no router.

thanks

regards,

0 Ryan Brown1 over 5 years ago in reply to robin Moon

TI__Guru**** 220347 points

Hi robin,

Heap is dynamic memory allocation used for temporary storage of data. You can check osal_mem_alloc inside the Z-Stack code but typically the highest usage is typically during device joining/commissioning.

Regards,
Ryan

Zigbee & Thread

Zigbee & Thread forum

CC2530: Side effects that can occur when changing heap size?