CC3100MOD: sl_Start() sometimes take longer time.

Hi Hitoshi Sugawara,

1. What servicepack is flashed to the CC3100MOD?
2. Is the application using a RTOS? Is there an interrupt or high priority thread on the MCU that is blocking the execution of the SimpleLink task?

Best regards,

Sarah

Hi Sarah,

1.Could you please how to check the version for the service pack?
   Device.h shows versions.

2) NO RTOS used. 
    A customer says that sl_Start() API is used for the blocking.

I hope you could understand the meaning of "blocking."

Thank you for your help.
Best regards,
Hitoshi

Hi Hitoshi,

1) Those defines are not a valid servicepack version (i.e. 1.0.1.15-2.13.0.2). The servicepack should be in your customer's UniFlash project, or you can retrieve the version from the application by using the following code:

SlVersionFull   ver = {0};
unsigned char ucConfigOpt = 0;
unsigned char ucConfigLen = 0;
ucConfigOpt = SL_DEVICE_GENERAL_VERSION;
ucConfigLen = sizeof(ver);
lRetVal = sl_DevGet(SL_DEVICE_GENERAL_CONFIGURATION, &ucConfigOpt, 
                                &ucConfigLen, (unsigned char *)(&ver));

ASSERT_ON_ERROR(lRetVal);
    
printf("Host Driver Version: %s\n\r",SL_DRIVER_VERSION);
printf("Build Version %d.%d.%d.%d.%d.%d.%d.%d.%d.%d.%d.%d\n\r",
    ver.NwpVersion[0],ver.NwpVersion[1],ver.NwpVersion[2],ver.NwpVersion[3],
    ver.ChipFwAndPhyVersion.FwVersion[0],ver.ChipFwAndPhyVersion.FwVersion[1],
    ver.ChipFwAndPhyVersion.FwVersion[2],ver.ChipFwAndPhyVersion.FwVersion[3],
    ver.ChipFwAndPhyVersion.PhyVersion[0],ver.ChipFwAndPhyVersion.PhyVersion[1],
    ver.ChipFwAndPhyVersion.PhyVersion[2],ver.ChipFwAndPhyVersion.PhyVersion[3]);

2) I'm not sure what you mean by sl_Start() is used for blocking. Can you debug and step through sl_Start() to determine where it takes a long time?

Best regards,

Sarah

Hi Sarah,

1) The customer will check the version of the service pack.

2) 
   The point is in the sl_Start() in device.c from SimpleLink1.1.10.
   OSI_RET_OK_CHECK(sl_SyncObjWait(&g_pCB->ObjPool[ObjIdx].SyncObj, SL_OS_WAIT_FOREVER));
   A while loop in _SlNonOsSemGet() in nonos.c

   in addition, the blocking means that it is described in the CC3100/CC3200 SimpleLink User's guide (SWRU368B) page 21.
   

   Blocking – pInitCallBack must be set to NULL. The calling application is blocked until the entire
   initialization process completes (upon receiving the Init complete interrupt). See the following code
   example:
   if( sl_Start(NULL, NULL, NULL) == 0)
   {
     LOG("Error opening interface to device\n");
   }

Hope it helps for your investigation.
Best regards,
Hitoshi

Hi Sarah,

After the latest servicepack was programmed, the time of sl_Start() finishes faster.
Thank you for your suggestion.

A customer would like to know the reason.
Could you please let us know the reason why it runs faster after the servicepack is updated?

Here is the version info. by sl_DevGet as follows:

ChipID:0x3000003

FwVersion[0]:0x00000001

FwVersion[1]:0x00000003

FwVersion[2]:0x00000004

FwVersion[3]:0x00000001

PhyVersion[0]:0x01

PhyVersion[1]:0x05

PhyVersion[2]:0x03

PhyVersion[3]:0x22

NwpVersion[0]:0x00000002

NwpVersion[1]:0x00000004

NwpVersion[2]:0x00000007

NwpVersion[3]:0x00000002

RomVersion:0x2222

Best regards,
Hitoshi

Hi Sarah,

Thank you so much for sharing the possible reasons.
It helps us a lot.

Best regards,
Hitoshi