mem_extend function not work in MQX 4.2

davidzhu — Sun, 27 Sep 2020 21:50:19 GMT

I am a MQX user, I am using K66 and MQX 4.2. I need to extend my external SDRAM to MQX pool with mem_extend, but it is not successful,. Could you please give me a clue how to this correctly?

Thank you.

Re: mem_extend function not work in MQX 4.2

danielchen — Tue, 29 Sep 2020 05:52:43 GMT

Hi David:

If your application runs out of RAM and you want to create new tasks you need external RAM. In this case _mem_extend function is used to let the kernel know about external mem pool.

you need to use these MACROs in user_config.h

#define MQX_USE_LWMEM_ALLOCATOR 0
#define MQX_USE_LWMEM 0
#define MQX_USE_MEM 1

Please rebuild all libraries.

Regards

Daniel

MCUXpresso IDEのトピックRe: mem_extend function not work in MQX 4.2

mem_extend function not work in MQX 4.2

Re: mem_extend function not work in MQX 4.2