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Curious are some things not supported in the GUI configurator?

Chris Thomas
Expert 1310 points
Other Parts Discussed in Thread: SYSBIOS

In the cfg file I had.

var Swi = xdc.useModule('ti.sysbios.knl.Swi');
var emifatm_txParams = new Swi.Params();
emifatm_txParams.instance.name = "emifatm_tx";
Program.global.emifatm_tx = Swi.create("&emifatm_tx_swi", emifatm_txParams);

In the c code I had

extern  SWI_Obj emifatm_tx;
...
SWI_post(&emifatm_tx);

This compiled and ran, but never hit seemed to go into the swi.

In the end I gave up on the gui and removed the swi definition in the cfg file and added this to the c file

Swi_Handle emifatm_tx_h = NULL;
...
xdc_runtime_Error_Block eb;
xdc_runtime_Error_init(&eb);
emifatm_tx_h = Swi_create(emifatm_tx_swi, NULL, &eb);
if (emifatm_tx_h == NULL) { edma_abort("Swi create failed"); }

Then changed my swi_posts to

if(emifatm_tx_h) Swi_post(emifatm_tx_h);

 

Everything sprung to life!

Is there something like statically created swi's needed to be activated somehow?

Did I get the extern wrong somehow - and still got past the linker?

Is there a big list of gotchas that I missed?

All the threads I created statically are running so I am sure I called dsp_start.

 

(Everything is the current version so far as I can tell bios_6_33_02_31)

 

  • 0
    TI__Mastermind 26780 points

    Chris,

    I think your static creation case will work if you: 1) remove the explicit extern declaration for the Swi object in the C file, and 2) include this header to allow access to global configuration values:

    #include <xdc/cfg/global.h>

    In the C code you can then post the Swi like this:

       Swi_post(emifatm_tx);

    You may want to look at the “static” or “stairstep” SYS/BIOS example templates, which use similar static Swi creation.

    Scott

  • 0 in reply to ScottG
    Expert 1310 points

    Thanks for the quick accurate reply.