gets stuck in event handler loop.

Hi Tejas,

What is the implementation of cc3k_int_poll(); ?

What is the SDK version and Service Pack version that you are using? Can you please use the host driver that is provided with the SDK?

Regards,
Raghavendra

Hi Raghavendra

void cc3k_int_poll()
{
  if (ReadWlanInterruptPin() == 0 && ccspi_is_in_irq == 0 && ccspi_int_enabled != 0)
  {
     cc3000_irq();
  }
}

 void cc3000_irq()  
        {    
          Delay(10);
  ccspi_is_in_irq = 1;
        if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP)
        {
            /* This means IRQ line was low call a callback of HCI Layer to inform on event */
             sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
        }
        else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE)
        {
            sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
                        
            /* IRQ line goes down - start reception */
            ASSERT_CS();

            //
            // Wait for TX/RX Compete which will come as DMA interrupt
            //
                SpiReadHeader();

            sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;

            SSIContReadOperation();
        }
        else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ)
        {
            SpiWriteDataSynchronous(sSpiInformation.pTxPacket, sSpiInformation.usTxPacketLength);

            sSpiInformation.ulSpiState = eSPI_STATE_IDLE;

            DEASSERT_CS();
        }    
ccspi_is_in_irq = 0;
}

SDK version i am using is 1.12,

I am using host driver version 15.

Thanks and regards

Tejas Pidkalwar

Hi Tejas,

After getting the dynamic IP what command was sent to the chip that made it wait for the IRQ line (command complete event)?

Regards,
Raghavendra

Hi Raghavendra,

Its not getting stuck exactly after getting IP address. The actual scenario is

-after getting IP address it will go to scheduler(which is in while(1) loop, continuously scheduling tasks) where few tasks are scheduled to perform

-among those task receive data is 1 task, where data is received over wifi

-when it will be waiting for receiving data it will continuously go through event handler loop which i have mentioned above and it will be getting interrupt which why it passes through that event handler loop

-But as soon as i start sending packets over wifi , jst after 1-2 packets it will get stuck in there waiting for interrupt and i checked probing to interrupt pin what i found is that interrupt is not occurring  only, which is why gets stuck there.

-that's why my guess was there might be any internal memory which is getting full,

Regards

Tejas

Hi

My project uses main board as STM32f103 MCU and CC3000 as daughter board and uses SPI as main communication. Both boards hardware designed by us. In this project application, we are communicating with CC3000 from our android based app. This mobile app will use IP address assigned to CC3000 after smart configuration to connect to CC300 over TCP/IP. This app will send some commands in the form of string packets to CC3000 which will be transferred to main board for further process and in return it will send acknowledgment in string packet format and will come to mobile app via CC3000.


With this setup, all initial process ( smart config, mobile app connection) works in proper way. Even we are able to process some specific number of commands. But after some specific number of commands process, code will get stuck in event-handler waiting for interrupt to occur. What we found is it will allow some specific amount bytes data transfer and after that wont take any data in. No interrupt occur and all communication lines between main board and daughter board will be idle. So need help here with this issue, why this is happening?

We tried hardware setup with main board stm32f103 (our designed) and CC3000 TI evaluation board, here it was working completely fine without getting stuck.

So i am not getting whether software issue or hardware?

Hi Raghavendra,

I am using standard host driver of SDK 1.12, integrated with our application code.
Now we are using here, CC3000 board designed by us with main board STM32f103. But same code when we are using with same main board STM32f103 and TI evaluation CC3000 board, complete process works fine.

Thanks and Regards

Tejas

Hi Raghavendra

Sorry to be late here. Whatever host driver code we are using is same as original one, except polling interrupt which is cc3k_int_poll. I tried by putting original host driver code also, but no progress.

And sorry we dont have air sniffer.

Thanks and Regards

Tejas