topic Re: K70F120 - RTCS appears to consume all memory in MQX Software Solutions

K70F120 - RTCS appears to consume all memory

regisgeorge — Mon, 01 Feb 2016 15:00:40 GMT

Have a small C++ prototype app up and running on TWR-K70F120 using MQX 4.2. It uses two message queues. Everything works.

I added RTCS. I can RTCS_create() and ipcfg_init_device() and they return without error. I then get failures on subsequent _msgpool_create().

I'm assuming there's sufficient RAM, just not configured properly. Haven't yet found anything in the documentation yet that helps.

Thanks,

Re: K70F120 - RTCS appears to consume all memory

Carlos_Musich — Wed, 03 Feb 2016 00:14:14 GMT

Hi Regis,

please check in the Task Aware Debugger (TAD - which is under menu MQX when you are in debug mode) the stack usage of the tasks. If TCP/IP task is running out of memory then you can modify the variable below before calling RTCS_create().

_RTCSTASK_stacksize = 4500;

If it is not the case please attach an image of the task summary or task list (depending if you use CW or KDS respectively) and stack usage window.

Regards,

Carlos

Re: K70F120 - RTCS appears to consume all memory

regisgeorge — Wed, 03 Feb 2016 17:45:14 GMT

Thanks for the reply Carlos.

The stacks were fine. I had to do some digging in the BSP config files it seemed odd to be out of memory. I found that only 2 message pools were allocated by default (though there were significantly more message queues). I guess that RTCS uses a message pool and that was what got me.

I have been able to get the the stack initialized successfully.

Re: K70F120 - RTCS appears to consume all memory

Carlos_Musich — Wed, 03 Feb 2016 18:23:58 GMT

Thank you for sharing your comments Regis,

I dont know how did you solved this, but you can easily reconfigure the number of message tools setting a value in variable _RTCS_msgpool_init before calling RTCS_create().

E.g.

_RTCS_msgpool_init = 6;

Regards,

Carlos

Re: K70F120 - RTCS appears to consume all memory

regisgeorge — Wed, 03 Feb 2016 18:45:51 GMT

I changed the value in the MQX_INITIALIZATION_STRUCT in mqx_init.c It has a member MAX_MSGPOOLS that was defaulted to 2 in my BSP.