CC2642R-Q1: CC2642 GPIO output mode to input mode/input to output

Part Number: CC2642R-Q1

hi，PIN_init()  cannot be called more than once?  Board_initGeneral();中有一次PIN_init(), 我又调用了一次PIN_init()，为什么还是可以运行？第二次的调用是否生效？

int main()
{
  /* Register Application callback to trap asserts raised in the Stack */
  RegisterAssertCback(AssertHandler); 

  Board_initGeneral();

  #define CONFIG_PIN_COUNT 10-8

  const PIN_Config BoardGpioInitTable[CONFIG_PIN_COUNT + 1] = {
    /* LaunchPad Button BTN-1 (Left), Parent Signal: CONFIG_GPIO_BTN1 GPIO Pin, (DIO13) */
                                                             0x0000000d | PIN_INPUT_EN | PIN_PULLUP | PIN_IRQ_DIS,
    /* LaunchPad Button BTN-2 (Right), Parent Signal: CONFIG_GPIO_BTN2 GPIO Pin, (DIO14) */
                                                             0x0000000e | PIN_INPUT_EN | PIN_PULLUP | PIN_IRQ_DIS,
//    /* LaunchPad LED Red, Parent Signal: CONFIG_GPIO_RLED GPIO Pin, (DIO6) */
//                                                             0x00000006 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MED,
//    /* LaunchPad LED Green, Parent Signal: CONFIG_GPIO_GLED GPIO Pin, (DIO7) */
//                                                             0x00000007 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MED,
//    /* Parent Signal: CONFIG_GPIO_0 GPIO Pin, (DIO4) */
//                                                             0x00000004 | PIN_INPUT_EN | PIN_NOPULL | PIN_IRQ_DIS,
//    /* Parent Signal: CONFIG_GPIO_1 GPIO Pin, (DIO5) */
//                                                             0x00000005 | PIN_INPUT_EN | PIN_NOPULL | PIN_IRQ_DIS,
//    /* Parent Signal: CONFIG_GPIO_2 GPIO Pin, (DIO12) */
//                                                             0x0000000c | PIN_INPUT_EN | PIN_NOPULL | PIN_IRQ_DIS,
//    /* Parent Signal: CONFIG_SPI_0 SCLK, (DIO11) */
//                                                             0x0000000b  | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MED,
////    /* Parent Signal: CONFIG_SPI_0 MISO, (DIO1) */
////                                                             0x00000001 | PIN_INPUT_EN | PIN_NOPULL | PIN_IRQ_DIS,
////    /* Parent Signal: CONFIG_SPI_0 MOSI, (DIO0) */
////                                                             0x00000000 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MED,
//
    PIN_TERMINATE
};
if (PIN_init(BoardGpioInitTable) != PIN_SUCCESS) {
        /* Error with PIN_init */
        while (1);
}

.............
}

sdk：simplelink_cc13xx_cc26xx_sdk_5_40_00_40