Starterware/CC3120: Unreliable WLAN Connection - Sometimes Failing To Connect With CC3120/CC3220

Hi Tim,

This needs some more investigation, but could you try the following patch to see if this helps - ensuring that the NWP interrupt is cleared during initialization, in cc_pal.c.

int NwpRegisterInterruptHandler(P_EVENT_HANDLER InterruptHdl , void* pValue)
{
	/* Check for unregister condition */
	if(NULL == InterruptHdl)
	{
		GPIO_disableInt(MSP_EXP432P401R_HOST_IRQ);
		GPIO_clearInt(MSP_EXP432P401R_HOST_IRQ);
		g_Host_irq_Hndlr = NULL;
		return 0;
	}
	else if(NULL == g_Host_irq_Hndlr)
	{
		g_Host_irq_Hndlr = InterruptHdl;
+++             GPIO_disableInt(MSP_EXP432P401R_HOST_IRQ);
+++             GPIO_clearInt(MSP_EXP432P401R_HOST_IRQ);
		GPIO_setCallback(MSP_EXP432P401R_HOST_IRQ, HostIrqGPIO_callback);
		GPIO_enableInt(MSP_EXP432P401R_HOST_IRQ);
		return 0;
	}
	else
	{
		/* An error occurred */
		return -1;
	}
}

Cheers,

~roger

Hey Roger:

Thanks for your response, but not sure how to try this since this would require me rebuilding the simplelink.a library.

Hey Roger:

Never mind that last post - I figured it out and it works! So how did you know that? You got some inside track going on that I don't know of? :-)

Thanks,
Tim

Hey Roger:

Just a few questions:

1.) I made the change that you suggested to cc_pal.c and built per the following:

c:\ti\xdctools_3_32_00_06_core\gmake.exe

from the following directory:

C:\TI\simplelink_msp432_sdk_wifi_plugin_1_30_00_03\source\ti\drivers\net\wifi

Is this the right version of xdctools that I should be using to build this? My latest xdctools is v3_50_01_12_core - should I be using this?

2.) Prior to making this change, I found that pressing the SW2 button on the CC3120BOOST BP helped out significantly. Went from being able to boot like 30% of the time to like 90% of the time, but not always. However making this change that you suggested seemed to fix the problem - it is booting like 100% of the time now - haven't got it to fail yet. So how did you know this? Would have been nice if this fix had been put in prior to me posting and me finding out the hard way how to get it working. :-( Oh well, no complaints - just glad you found the fix, but would like to know how you found this out.

3.) A patch with +++? Man you must think I am using Linux!!! Just give me the code changes and/or a .zip file - I much prefer the old fashioned way! :-)

Thanks,
Tim

Ok, thanks.

Tim