Tool/software:
Hello guys!
I have got a J721e_evm board. I am using the "ti-processor-sdk-rtos-j721e-evm-09_02_00_05". I am trying to trigger a GPIO interrupt which comes form an external source (like a button). I am using the mc2_1 core, and the PDK's GPIO example: main_led_blink.c. I have already successfully triggered interrupt from a WKUP domain GPIO, but with MAIN domain its just does't work. In my example I am trying to use GPIO0_71. I could use this pin as output successfully, but not as interrupt input so far. Here is the relevant part of my code:
pinmux_data:
/* MyGPIO0 -> GPIO0_71 -> AA28 */
{
PIN_PRG0_PRU1_GPO8, PIN_MODE(7) | \
((PIN_PULL_DISABLE | PIN_INPUT_ENABLE) & (~PIN_PULL_DIRECTION))
},GPIO_board.c:
/* GPIO Driver board specific pin configuration structure */
GPIO_PinConfig gpioPinConfigs[] =
{
GPIO_DEVICE_CONFIG(1, 71) | GPIO_CFG_IN_INT_RISING | GPIO_CFG_INPUT,
};
/* GPIO Driver call back functions */
GPIO_CallbackFxn gpioCallbackFunctions[] =
{
NULL
};
/* GPIO Driver configuration structure */
GPIO_v0_Config GPIO_v0_config =
{
gpioPinConfigs,
gpioCallbackFunctions,
sizeof(gpioPinConfigs) / sizeof(GPIO_PinConfig),
sizeof(gpioCallbackFunctions) / sizeof(GPIO_CallbackFxn),
0x8Umain_led_blink.c
volatile uint32_t main_gpio_intr_triggered = 0;
static void Board_initGPIO(void)
{
Board_initCfg boardCfg;
GPIO_v0_HwAttrs gpio_cfg;
boardCfg = BOARD_INIT_PINMUX_CONFIG |
BOARD_INIT_MODULE_CLOCK |
BOARD_INIT_UART_STDIO;
Board_init(boardCfg);
GPIO_socGetInitCfg(1, &gpio_cfg);
gpio_cfg.baseAddr = CSL_GPIO0_BASE;
(gpio_cfg.intCfg[71]).intcMuxNum = INVALID_INTC_MUX_NUM;
(gpio_cfg.intCfg[71]).intcMuxInEvent = 0;
(gpio_cfg.intCfg[71]).intcMuxOutEvent = 0;
GPIO_socSetInitCfg(1, &gpio_cfg);
}
void AppMainGpioCallbackFxn(void)
{
main_gpio_intr_triggered = 1;
GPIO_clearInt(0);
}
#if defined (RTOS_ENV)
void gpio_test(void* arg0, void* arg1)
{
#else
int main()
{
Board_initGPIO();
#endif
// GPIO initialization
GPIO_init();
// Set the callback function
GPIO_setCallback(0, AppMainGpioCallbackFxn);
// Enable GPIO interrupt on the specific gpio pin
GPIO_enableInt(0);
GPIO_clearInt(0);
GPIO_log("\n -------------LED blink application------------- \n");
UART_printStatus("\n Awaiting interrupt occurrence ...\n");
AppDelay(DELAY_VALUE);
while (main_gpio_intr_triggered == 0U);
UART_printStatus("\n Button has been pushed, and the interrupt has been captured!! \n");
while(1)
{
AppDelay(DELAY_VALUE);
}
}Can you help me what could I do wrong?
Thank you for your help
