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Interrupt on PIN_GIO_SPARE

eivholt

Hi, I'm having some problems with interrupts. I want the available pin GIO to trigger an interrupt in my code. So far I have started with bdk_blinky and been able to read the pin configured as such:

Sys_DIO_Config(PIN_GIO_SPARE, DIO_NO_PULL | DIO_LPF_ENABLE | DIO_MODE_GPIO_IN_0);

I am trying to understand the API on how to configure interrupts. I have tried this:

 

Sys_DIO_IntConfig(0,

DIO_DEBOUNCE_ENABLE |

DIO_SRC_DIO_0 |

DIO_EVENT_HIGH_LEVEL,

DIO_DEBOUNCE_SLOWCLK_DIV32,

0);

 

experimenting with the parameters. I have implemented:

 

void DIO0_IRQHandler(void){

LED_On(LED_BLUE);

}

 

with breakpoint. It never hits.

 

Can anyone explain what index and DIO_SRC_DIO_* means in this context and what I can use? Should I use another library?

I tried to modify the bdk_button to use the PIN_GIO_SPARE pin instead of button0, but to no avail.

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  • Hi Eivind,

     

    I have not checked the documentation, but I know how I would find out, so I can point you in the right direction.

    The DIO_SRC_DIO_0 is most likely (I'm guessing) indicating which pin you wish to use for the interrupt. The RSL10 chip is unusual (in a good way) in that any pin can be used for any feature, as far as I know (I could be wrong). Anyway, if you want to be certain how to use that API call, just hit F3 in the IDE, and it will find the definition and it will be described.

    To me it doesn't seem any other library needs to be used. You're currently using C and a low-level API which should meet your needs for things like I/O and interrupts.

    It looks very straightforward. As for breakpoints, I have not used them with the RSL10. Maybe you're running in Release mode instead of Debug mode. Anyway, you could step through if you really wanted to. Alternatively as a workaround, you could just light an LED to test how far in the code you have got.

    EDIT: One more thing, perhaps interrupts need to be enabled globally too. Usually (at least with other microcontrollers), once you have configured up individual interrupts, there's a master-control to enable or disable that configuration.

  • in reply to shabaz

    Yes it is true that any GPIO can be used for any digital function.

    DIO-0 to DIO-3 are analog inputs and again any of these pin can be connected with any channel of ADC.

     

    The DIO_SRC_DIO_0 is most likely (I'm guessing) indicating which pin you wish to use for the interrupt. The RSL10 chip is unusual (in a good way) in that any pin can be used for any feature, as far as I know (I could be wrong). Anyway, if you want to be certain how to use that API call, just hit F3 in the IDE, and it will find the definition and it will be described.

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  • in reply to shabaz

    Yes it is true that any GPIO can be used for any digital function.

    DIO-0 to DIO-3 are analog inputs and again any of these pin can be connected with any channel of ADC.

     

    The DIO_SRC_DIO_0 is most likely (I'm guessing) indicating which pin you wish to use for the interrupt. The RSL10 chip is unusual (in a good way) in that any pin can be used for any feature, as far as I know (I could be wrong). Anyway, if you want to be certain how to use that API call, just hit F3 in the IDE, and it will find the definition and it will be described.

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