FRDM-KL26Z: Hardfault using PORT_SetPinMux function

numinga — Sun, 22 Sep 2019 07:25:02 GMT

Hi, I am using the following:

EVM: FRDM-KL26Z

IDE: MCUXpresso IDE v11.0.1 [Build 2563] [2019-09-01]

SDK: SDK_2.2.0_FRDM-KL26Z

I created a project by clicking the new project menu.

I step debug and found out at the PORT_SetPinMux as shown below in the routine where it triggers hardfault ISR.

void BOARD_InitPins(void) {
CLOCK_EnableClock(kCLOCK_PortA); /* Port A Clock Gate Control: Clock enabled */

PORT_SetPinMux(PORTA, PIN1_IDX, kPORT_MuxAlt2);            /* PORTA1 (pin 23) is configured as UART0_RX */
PORT_SetPinMux(PORTA, PIN2_IDX, kPORT_MuxAlt2);            /* PORTA2 (pin 24) is configured as UART0_TX */
SIM->SOPT5 = ((SIM->SOPT5 &
    (~(SIM_SOPT5_UART0TXSRC_MASK | SIM_SOPT5_UART0RXSRC_MASK))) /* Mask bits to zero which are setting */
      | SIM_SOPT5_UART0TXSRC(SOPT5_UART0TXSRC_UART_TX)       /* UART0 Transmit Data Source Select: UART0_TX pin */
      | SIM_SOPT5_UART0RXSRC(SOPT5_UART0RXSRC_UART_RX)       /* UART0 Receive Data Source Select: UART_RX pin */
    );
/* added*/
    PORT_SetPinMux(PORTD, PIN5_IDX, kPORT_MuxAsGpio);            // PORTD5 (pin 5) is configusred as gpio
    PORT_SetPinMux(PORTE, PIN29_IDX, kPORT_MuxAsGpio);           // PORTE29 (pin 29) is configured as gpio
    PORT_SetPinMux(PORTE, PIN31_IDX, kPORT_MuxAsGpio);           // PORTE17 (pin 31) is configured as gpio

    GPIO_PinInit(GPIOE, PIN29_IDX, &gpio_setoutput_config);
    GPIO_PinInit(GPIOE, PIN31_IDX, &gpio_setoutput_config);
    GPIO_PinInit(GPIOD, PIN5_IDX, &gpio_setoutput_config);
// added
/**/

What's wrong?

Thanks,

Neo

Re: FRDM-KL26Z: Hardfault using PORT_SetPinMux function

numinga — Mon, 23 Sep 2019 15:27:10 GMT

I already found the solution. I just need to enable the clock to the portD and portE using CLOCK_EnableClock() function.

Thanks anyway.

Kinetis MicrocontrollersのトピックFRDM-KL26Z: Hardfault using PORT_SetPinMux function

FRDM-KL26Z: Hardfault using PORT_SetPinMux function

Re: FRDM-KL26Z: Hardfault using PORT_SetPinMux function