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MSP432E401Y: Access TI-RTOS static configuration parameters in C?

Russell Hoffman
Prodigy 20 points
Part Number: MSP432E401Y

Hello,

Maybe I am going about this the wrong way, but I'm wondering if there is a way to access some of the values that get set up in the release.cfg configuration file for TI-RTOS from within C code, when setting up statically-allocated objects.

Specifically, if I set up a Mailbox object, whose size is N messages of M bytes each, is there a way from within my C code to refer to "M", so that I can do things like set up a buffer that is "M" bytes long as a working buffer, or check that I haven't written more than "M" bytes to that buffer, etc. 

That way, if I later decide to change "M", I just have to do it once in the XGCONF tool, and not multiple places thruout the code.

Thanks,

Russ

  • 0
    TI__Expert 7015 points

    Hi, 

    I would like RTOS experts to answer your questions. 

    Thanks, 

    Lixin

  • 0
    Guru 92251 points

    Russell Hoffman said:
    Specifically, if I set up a Mailbox object, whose size is N messages of M bytes each, is there a way from within my C code to refer to "M"

    From a quick look I can't see that a mailbox created statically in the .cfg creates such definitions which are available to the C code.

    However, found that it is possible to create Program.global variables in the .cfg file which are used to create the mailbox. E.g.:

    var Mailbox = xdc.useModule('ti.sysbios.knl.Mailbox');
var mailbox0Params = new Mailbox.Params();
mailbox0Params.instance.name = "mailbox0";
Program.global.mailbox0_msg_size = 20;
Program.global.mailbox0_num_msgs = 64;
Program.global.mailbox0 = Mailbox.create(Program.global.mailbox0_msg_size, Program.global.mailbox0_num_msgs, mailbox0Params);

    The <xdc/cfg/global.h> include file which can included by the C code then contains #defines based upon the Program.global variables set in the .cfg file. E.g. for the above got:

    #define mailbox0_msg_size 0x14

#define mailbox0_num_msgs 0x40

#include <ti/sysbios/knl/Mailbox.h>
extern const ti_sysbios_knl_Mailbox_Handle mailbox0;

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