Problem with the GPIO interrupt on TMDSICE3359

InaToshi

Other Parts Discussed in Thread: AM3359, SYSBIOS

I am trying to configure GPIO3-19pin as a external input interrupt on AM3359 ICE rev2.1.

I configured the pin(GPIO3-19) as input, interrupt with rise edge. I succeeded to read the input status Hi and Lo of this pin when I input the voltage ON/OFF.

However interrupt action never occurred. I couldn't understand which is appropriate to configure interrupt by sys/bios or pin configure by standard API.

How can I configure correctly?

The excerption of my code is following.

My Condition is:

CCS:Ver5.5

SDK:Am335x_sysbios_ind_sdk_1.1.0.10

SYS/BIOS 6.41.4.54

**********************************************

int main(void)
{
GPIODirModeSet(SOC_GPIO_3_REGS, 19,GPIO_DIR_INPUT);
GPIOIntTypeSet(SOC_GPIO_3_REGS, 19,GPIO_INT_TYPE_RISE_EDGE);

  /*****Create a HWI **************************************/
  Hwi_Params hwiparams_ff;
  UInt intNum;
  Hwi_FuncPtr hwiFuncPointer = NULL;
  Hwi_Handle tempHwiHandler_ff;

  intNum = 62;
  hwiFuncPointer = (Hwi_FuncPtr)Hwi_FFint;
  Hwi_Params_init(&hwiparams_ff);
  hwiparams_ff.arg = 1;
  tempHwiHandler_ff = Hwi_create(intNum, hwiFuncPointer, &hwiparams_ff, NULL);

if (tempHwiHandler_ff == NULL)
{
　　　　System_printf("Hwi create failed");
}
Hwi_enableInterrupt(intNum);
}

/*****HWI****************************************/

static void Hwi_FFint(void)
{
LEDGPIOSetVal(0,16 ,1); //LED1 green ON
}

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

Hi,

Where is the pinmux for GPIO3_19?

0 InaToshi over 9 years ago in reply to Biser Gatchev-XID

Prodigy 30 points

Hi Biser

I'm sorry that I can't understand what you said.

Is the "pinmux" you said mean the configuration of the control register?

I configured the control register as follows but it was not improved.

HWREG(SOC_CONTROL_REGS + CONTROL_CONF_MCASP0_FSR) = (0x3f);
// Bit6- SLEWCTRL 0(Fast)
// Bit5- RXACTIVE Receiver Enabled 1(input)
// Bit4- PULLTYPESEL Pullup selected 1(pullup)
// Bit3- PULLUDEN Pullup pulldown disabled 1
// Bit2-0-MUXMODE 111=7

0 Lalindra Jayatilleke over 9 years ago

TI__Mastermind 30365 points

Ina,

Could you take a look at the Sitara IND SDK at http://downloads.ti.com/sitara_indus/esd/SYSBIOSSDK-IND-SITARA/latest/index_FDS.html? There is a GPIO blink example where apio_app.c shows how to configure the GPIO in GpioAppPinConfig(). I believe it covers the interrupt setup of the GPIO pin as well.

static void GpioAppPinConfig(uint32_t baseAddr,
                             uint32_t pinNum,
                             gpioAppPinCfg_t *pGpioPinConfig)
{
    /* Configure Pin as an Input/Output Pin. */
    GPIODirModeSet(baseAddr, pinNum, pGpioPinConfig->dir);

    /* Enable Debouncing feature for the GPIO Pin. */
    GPIODebounceFuncEnable(baseAddr, pinNum, pGpioPinConfig->debounceEnable);

    if(TRUE == pGpioPinConfig->debounceEnable)
    {
        /*
         * Configure the Debouncing Time for all the input pins of
         * the selected GPIO instance.
         */
        GPIODebounceTimeConfig(baseAddr, pGpioPinConfig->debounceTime);
    }

    if(FALSE == pGpioPinConfig->intrEnable)
    {
        /* Enable interrupt for the specified GPIO Pin. */
        GPIOPinIntDisable(baseAddr, pGpioPinConfig->intrLine, pinNum);
    }
    else
    {
        /*
         * Configure interrupt generation on detection of a logic HIGH or
         * LOW levels or a rising or a falling edge.
         */
        GPIOIntTypeSet(baseAddr, pinNum, pGpioPinConfig->intrType);

        /* Enable interrupt for the specified GPIO Pin. */
        GPIOPinIntEnable(baseAddr, pGpioPinConfig->intrLine, pinNum);
    }

    if(FALSE == pGpioPinConfig->wakeEnable)
    {
        /* Enable wakeup generation for GPIO Module */
        GPIOWakeupGlobalDisable(baseAddr);

        /* Configure input GPIO Pin to wakeup */
        GPIOPinIntWakeUpDisable(baseAddr, pGpioPinConfig->intrLine, pinNum);
    }
    else
    {
        /* Configure input GPIO Pin to wakeup */
        GPIOPinIntWakeUpEnable(baseAddr, pGpioPinConfig->intrLine, pinNum);
    }
}

Hope this helps. Thanks.

Lali

0 InaToshi over 9 years ago in reply to Lalindra Jayatilleke

Prodigy 30 points

Hi Lali

Thank you for your advice.
I reconsidered my GPIO pin configuration as following. But the interrupt was not occurred.
(the GPIOPinRead() in polling of other task can be done)
I resistered the interrupt function of Hwi_FFint() by using "IntRegister(SYS_INT_GPIOINT3A, Hwi_FFint)". Is this correct?

Should I use the Hwi function of SYS/BIOS?
In that case, could you tell me how to configure the GPIO pin interrupt by SYS/BIOS?

I am troubled with this matter very much. I hope you can make concrete advice to me.

/**The excerption of my code*******/
int main(void)
{
GPIODirModeSet(SOC_GPIO_3_REGS, 19, GPIO_DIR_INPUT);

GPIOIntTypeSet(SOC_GPIO_3_REGS, 19, GPIO_INT_TYPE_RISE_EDGE);
IntPrioritySet(SYS_INT_GPIOINT3A, 0, AINTC_HOSTINT_ROUTE_IRQ);
GPIOPinIntEnable(SOC_GPIO_3_REGS,SYS_INT_GPIOINT3A, 19); //interrupt number 62
GPIOPinIntWakeUpEnable(SOC_GPIO_3_REGS, GPIO_INT_SWAKEUP_LINE_1, 19);

IntRegister(SYS_INT_GPIOINT3A, Hwi_FFint);
// IntSystemEnable(SYS_INT_GPIOINT3A);
IntMasterIRQEnable();

/***********create main task for lwip**************/
Task_Handle main_task;
Task_Params taskParams;
Task_Params_init(&taskParams);
taskParams.stackSize = 0x2000;
taskParams.priority = 2;
main_task = Task_create (task_lwip, &taskParams, NULL);
/*************************************************/
BIOS_start();
}

Void task_lwip(UArg arg0, UArg arg1)
{
while(1)
{
/***GPIO3-19 polling****/
temp_gpio3_19 = GPIOPinRead(SOC_GPIO_3_REGS,19);
if(temp_gpio3_19){
LEDGPIOSetVal(1,30 ,0); // LED red off
}
else{
LEDGPIOSetVal(1,30 ,1); // LED red on
}
}
}

/*****HWI****************************************/

static void Hwi_FFint(void)
{
LEDGPIOSetVal(0,16 ,1); //LED1 green ON
}

0 Cazaban Laurence over 9 years ago in reply to InaToshi

Expert 1500 points

Hello Lali,

I think I have the same problem as you.

In fact, I'm trying to enable an interruption on GPIO0_19.

I have done exactly the same things as you:

- PinMux Setup

- GPIO Configuration

- Interrupt configuration

But, unfortunately, my interrupt is not generated !

Did you find a solution ? if yes, can you show me how to do ?

Thanks a lot to help me in solving this problem

Laurence

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Problem with the GPIO interrupt on TMDSICE3359