RTOS/AM4378: PRP example issue

Hi Marko,

I am seeing pruss_config[0].object is set to prussObjects which is defined as PRUICSS_V1_Object and from

/* PRUICSS objects */

PRUICSS_V1_Object prussObjects[PRUICCSS_INSTANCE_MAX-1];

/* PRUICSS configuration structure */

PRUICSS_Config pruss_config[PRUICCSS_INSTANCE_MAX] = {

   {

       &prussObjects[0],

       &prussInitCfg[0]

   },

Also

typedef struct PRUICSS_V1_Object_s

{

   uint32_t            pruicss_version;

   int32_t                 instance;         /* PRUICSS write semaphore*/

   void*               pruBinBuff[2];         /* Buffer data pointer */

   uint32_t        buffLen[2];

   PRUICSS_IrqFunMap   pruEvntOutFnMapArray[PRUICSS_MAX_WAIT_EVENTS];

}PRUICSS_V1_Object;

I don't quite follow you - address to pruss0 object is broken. Can you elaborate or do you have a crash log to illustrate the problem?

Thanks,
Garrett

Hi Garrett,

please flow my points and steps:

1.) int main() ->

#if !defined SOC_AM335x
    PRUICSS_socGetInitCfg(&pruss_config);
#endif

pruss_config is defined in pruicss_soc.c.

2.) I add some variables and stuff to program so probably addresses will be different, but try to debug step-by-step and check struct array pruss_config.
2.a) put breakpoint to :

    *cfg = &pruss_config[0];

line 785 - function PRUICSS_socGetInitCfg() in pruicss_drv.c
2.b) Check address of pruss_config. In my case is 0x800A7E18
2.c) Check pruss_config[0].object value. In my case is 0x8010E154
2.d) Step to:

return PRUICSS_RETURN_SUCCESS;

2.e)Check value of  pruss_config[0].object... must be the same as &pruss_config[0]. Here is pruss_config[0].object value (address to object) broken, because *cfg is also pruss_config[0].
So if anyone wants to use ICSS0 will get exception cuse *.object is broken!

2.f) this is bug?

Best regards, Mare

Garrett,

correct!

Regards, Mare