SYS/BIOS interrupt changed to CSL interrupt on NDK helloworld example

Hi Yoonsun,

The interrupt is configured in .CFG(BIOS configuration file) file . You can remove it from there and update the code do interrupt configuration using CSL.

Thank you.
Regards,
Rajasekaran K

Hi,
Please refer to the following TI wiki page.
processors.wiki.ti.com/.../Configuring_Interrupts_on_Keystone_Devices

Hello Raja,

I checked the eventId of helloworld_evmc6678l project by ROV.
EventId 48 is assigned to EmacRxPktISR function.

I checked helloWorld.cfg file but did not find out interrupt configuration for eventId 48.
And I did not find out where the function EmacRxPktISR is either.

Hi Titus,

I modified C:\ti\pdk_C6678_1_1_2_6\packages\ti\transport\ndk\nimu\src\nimu_eth.c file as below

I did ping test with new nimu_eth.c and original helloWorld project.

First, it looked good ping return.

But it did not response for ping anymore after some time later.

If i changed to nimu_eth.c to original code, there was no problem. Thus I think test environment has no problem.

How can I debug nimu_eth.c code?

#if 0 // original

platform_write ("Ethernet eventId : %d and vectId (Interrupt) : %d \n", eventId, vectId);

/* Register our ISR handle for this event */
EventCombiner_dispatchPlug (eventId, (EventCombiner_FuncPtr)EmacRxPktISR, (UArg)ptr_net_device, TRUE);
EventCombiner_enableEvent(eventId);

/* Map the event id to hardware interrupt 7. */
Hwi_eventMap(vectId, eventId >> 5);

/* Enable interrupt */
Hwi_enableInterrupt(vectId);

#else //new code

intcHndl = CSL_intcOpen (&intcObj, eventId, &vectId , NULL);
if (intcHndl == NULL)
{
platform_write ("Failed!!!! Ethernet eventId : %d and vectId (Interrupt) : %d \n", eventId, vectId);
return -1;
}
platform_write ("Ethernet eventId : %d and vectId (Interrupt) : %d \n", eventId, vectId);

EventRecord.handler = (CSL_IntcEventHandler)&EmacRxPktISR;
EventRecord.arg = ptr_net_device;

if (CSL_intcPlugEventHandler(intcHndl, &EventRecord) != CSL_SOK)
{
printf("Error: GEM-INTC Plug event handler failed\n");
return -1;
}

/* Enabling the events. */
if (CSL_intcHwControl(intcHndl, CSL_INTC_CMD_EVTENABLE, NULL) != CSL_SOK)
{
printf("Error: GEM-INTC CSL_INTC_CMD_EVTENABLE command failed\n");
return -1;
}

#endif

Hi Titus,

Is there no example NDK with CSL APIs?

I modified just Hwi functions to CSL APIs then did ping test.

I got good response from c6678, but it did not response anymore after some time.

Most of case, there was no error message, just no response.
But sometimes I saw 'Invalid Packet' or 'Illegal call to llExit()'

I tried to find out where I mis-changed in nimu_eth.c, but I couldn't.
Is possible to use NDK with CSL interrupt?

Hi,
We have used CSL APIs only for NDK library.

#include <ti/csl/csl_cpsgmiiAux.h
#include <ti/csl/cslr_cpsgmii.h>

What do you mean by CSL API ?

Hello Titus,

I am sorry for uncertain expression. I meant csl_intc functions for NDK.

I imported project 'nimu_eth_evmc6678l' and modified SYSBIOS interrupt functions to CSL interrupt functions in nimu_eth.c file.

I rebuilt nimu_eth_evmc6678l then rebuilt my project for ping test.

I received good result just for first 40~100 pings.

After some time(40 ~ 100 pings) later, there was no response from board.

I checked if EmacRxPktISR was executed or not when ping arrived by set hw breakpoint in EmacRxPktISR function.

When there was no ping response, the EmacRxPktISR was not called.(I confirmed Emac was called when first some ping test.)

 I inserted modified nimu_eth.c file below.

nimu_eth.c

Hi Yoonsun,
May I know that why do you want to use CSL API based interrupts and don't want SYS/BIOS based interrupt ?
I think, for this, RTOS team could answer in better.

Hi Titus,

I have verified code with CSL based interrupt and need to add ethernet function.
Thus I thought that it would be easier way to change interrupt method of helloWorld project if migration was not complex.
Anyway thanks for your support. I will check a little more.