RTOS/OMAP-L138: GPIO interrupt issue

Patryk_93

Part Number: OMAP-L138

Tool/software: TI-RTOS

Hello,

I use pdk 1_0_6 and I know GPIO_LedBlink exmaple but I have problem with GPIO interrupt when I should use more then 1 input pin to interrupt:

/* XDCtools Header files */
#include <xdc/std.h>
#include <xdc/cfg/global.h>
#include <xdc/runtime/System.h>
#include <stdio.h>

#include <ti/board/board.h>
#include <ti/drv/gpio/GPIO.h>
#include <ti/drv/gpio/soc/GPIO_soc.h>

#include "usm_gpio.h"

/**********************************************************************
 ************************** GPIO  *************************************
 **********************************************************************/
/* GPIO Driver board specific pin configuration structure */
GPIO_PinConfig gpioPinConfigs[] =
{
    //MMCSD
    GPIO_DEVICE_CONFIG(GPIO_MMC_SDCD_PORT_NUM, GPIO_MMC_SDCD_PIN_NUM) | GPIO_CFG_IN_INT_BOTH_EDGES | GPIO_CFG_INPUT,
    //BUZZER
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_BUZZER_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_OUTPUT,
    //LED_ARRX
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_LED_EXT0_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_OUTPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_LED_EXT1_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_OUTPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_LED_EXT2_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_OUTPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_LED_EXT4_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_OUTPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_LED_EXT5_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_OUTPUT,
    //S4 ->SW1-SW6
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_S4_SW1_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_INPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_S4_SW2_PIN_NUM) | GPIO_CFG_IN_INT_BOTH_EDGES| GPIO_CFG_INPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_S4_SW3_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_INPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_S4_SW4_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_INPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_S4_SW5_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_INPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_S4_SW6_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_INPUT,
};

/* GPIO Driver call back functions */
GPIO_CallbackFxn gpioCallbackFunctions[] =
{
    //MMCSD
    AppGpioCallbackFxn,
    //BUZZER
    NULL,
    //LED_ARRX
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    //S4 ->SW1-SW6
    NULL,
    AppGpioCallbackFxn2,
    NULL,
    NULL,
    NULL,
    NULL,
};

GPIO_v0_Config GPIO_v0_config =
{
    gpioPinConfigs,
    gpioCallbackFunctions,
    sizeof(gpioPinConfigs) / sizeof(GPIO_PinConfig),
    sizeof(gpioCallbackFunctions) / sizeof(GPIO_CallbackFxn),
    0,
};

void usm_board_initGPIO(void)
{

    GPIO_v0_HwAttrs gpio_cfg;
    /* Get the default SPI init configurations */
    GPIO_socGetInitCfg(GPIO_MMC_SDCD_PORT_NUM, &gpio_cfg);
    /* Modify the default GPIO configurations if necessary */
    //***/
    /* Set the default GPIO init configurations */
    GPIO_socSetInitCfg(GPIO_MMC_SDCD_PORT_NUM, &gpio_cfg);
    /* Setup GPIO interrupt configurations */
    GPIO_socSetBankInt(GPIO_MMC_SDCD_PORT_NUM, GPIO_MMC_SDCD_PIN_NUM, NULL);
    GPIO_socSetBankInt(GPIO_MMC_SDCD_PORT_NUM, GPIO_S4_SW2_PIN_NUM, NULL);

    /* GPIO initialization */
    GPIO_init();
    /* Enable GPIO interrupt on the specific gpio pin */
    GPIO_enableInt(GPIO_PIN_MMC_SDCD);
    GPIO_enableInt(GPIO_PIN_S4_SW2);

}

AppGpioCallbackFxn and AppGpioCallbackFxn2 I have in other file but intterupt form GPIO_PIN_MMC_SDCD is correct but GPIO_PIN_S4_SW2 not interrupt...
When I changed the order in gpioPinConfigs this works correctly GPIO_PIN_S4_SW2 abut not GPIO_PIN_MMC_SDCD ...

When I checked in GPIO Interrupt Status the interrupt status is 1.
Where is the problem?

Best regards,
Patryk

over 6 years ago

0 Sahin Okur over 6 years ago

TI__Mastermind 27355 points

Hello Patryk,

Did you set the callback function using GPIO_setCallback()? For example,

GPIO_setCallback(GPIO_PIN_S4_SW2, AppGpioCallbackFxn2);

EDIT: Nevermind, just saw that you are statically configuring it in the GPIO_CallbackFxn array.

0 Patryk_93 over 6 years ago in reply to Sahin Okur

Intellectual 800 points

Yes, I tried but it did not change anything.

0 Sahin Okur over 6 years ago in reply to Patryk_93

TI__Mastermind 27355 points

What port # is GPIO_MMC_SDCD_PORT_NUM? I see that you are using GPIO_PORT_NUM0 here,

GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_S4_SW2_PIN_NUM)

but GPIO_MMC_SDCD_PORT_NUM here,

GPIO_socSetBankInt(GPIO_MMC_SDCD_PORT_NUM, GPIO_S4_SW2_PIN_NUM, NULL);

0 Patryk_93 over 6 years ago in reply to Sahin Okur

Intellectual 800 points

Yes, I used different definitions but GPIO_PORT_NUM0 = 0 and GPIO_MMC_SDCD_PORT_NUM also = 0

0 Sahin Okur over 6 years ago in reply to Patryk_93

TI__Mastermind 27355 points

You are missing one NULL entry in the GPIO_CallbackFxn array. Due to this, the callback function for GPIO_S4_SW2_PIN_NUM is set to NULL.

0 Patryk_93 over 6 years ago in reply to Sahin Okur

Intellectual 800 points

Thanks Sahin but I think that I made the mistake while editing the text.

I will check tomorrow and I will write the result here.

0 Patryk_93 over 6 years ago in reply to Patryk_93

Intellectual 800 points

Hello,

I checked my code and this didn't solve the problem.

/* GPIO Driver board specific pin configuration structure */
GPIO_PinConfig gpioPinConfigs[] =
{
    //MMCSD
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_S4_SW2_PIN_NUM) | GPIO_CFG_IN_INT_BOTH_EDGES | GPIO_CFG_INPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_MMC_SDCD_PIN_NUM) | GPIO_CFG_IN_INT_BOTH_EDGES | GPIO_CFG_INPUT,
    GPIO_DEVICE_CONFIG(GPIO_PORT_NUM0, GPIO_BUZZER_PIN_NUM) | GPIO_CFG_IN_INT_NONE | GPIO_CFG_OUTPUT,
};

/* GPIO Driver call back functions */
GPIO_CallbackFxn gpioCallbackFunctions[] =
{
    AppGpioCallbackFxn,
    AppGpioCallbackFxn
};

GPIO_v0_Config GPIO_v0_config =
{
    gpioPinConfigs,
    gpioCallbackFunctions,
    sizeof(gpioPinConfigs) / sizeof(GPIO_PinConfig),
    sizeof(gpioCallbackFunctions) / sizeof(GPIO_CallbackFxn),
    0,
};

void usm_board_initGPIO(void)
{

    GPIO_v0_HwAttrs gpio_cfg;
    /* Get the default SPI init configurations */
    GPIO_socGetInitCfg(GPIO_PORT_NUM0, &gpio_cfg);
    /* Modify the default GPIO configurations if necessary */
    //***/
    /* Set the default GPIO init configurations */
    GPIO_socSetInitCfg(GPIO_PORT_NUM0, &gpio_cfg);
    /* Setup GPIO interrupt configurations */
    GPIO_socSetBankInt(GPIO_PORT_NUM0, GPIO_MMC_SDCD_PIN_NUM, NULL);
    GPIO_socSetBankInt(GPIO_PORT_NUM0, GPIO_S4_SW2_PIN_NUM, NULL);

    /* GPIO initialization */
    GPIO_init();
    /* Enable GPIO interrupt on the specific gpio pin */
    GPIO_enableInt(GPIO_PIN_MMC_SDCD);
    GPIO_enableInt(GPIO_PIN_S4_SW2);

}

When I changed the order in gpioPinConfige and changed GPIO_PIN_MMC_SDCD and GPIO_PIN_S4_SW2 index I noticed that the index 0 interrupt always works correctly. The rest of the indexes don't work. But in GPIO Interrupt Status Register it is visible.

Regards,

Patryk

0 Sahin Okur over 6 years ago in reply to Patryk_93

TI__Mastermind 27355 points

Hi Patryk,

I'm sorry for the delay here. Were you able to resolve this or do you still need help with this issue?

0 Patryk_93 over 6 years ago in reply to Sahin Okur

Intellectual 800 points

Hi Sahin,

I solved this issue, probably I had bug in my cod. Thank you for your support.

Regards,

Patryk

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RTOS/OMAP-L138: GPIO interrupt issue