Is  there a way to address GPIO pins by using an index with the pin numbers in an array on a PSoC6?

Easiest approach will be to use a const array of functions to access the pins. This has the advantage that you can span ports.

Bob

Chris,

If you can design/select the pins such that if they all fit in one port, then you can use the Port registers (GPIO_PRT[i]) directly to read the status or update the pin output. This will not only reduce the complexity but also improves efficiency.

If you cannot design/select the pins in the same port, then the PDL does not provide much options. As bob suggested, you can use an array of functions to get the status or update the pin output by indexing the array based on your pin number as index. You can even define your own function to get the combined status (something like below). Or in similar fashion, define APIs for all your needs - set output, drive mode, interrupt status etc. You can even define interrupt APIs and use the IRQ15 (GPIO all ports interrupt) for executing interrupt related processes.

#define NUMBER_OF_PINS  5

typedef struct {

    GPIO_PRT_Type *port;

    uint32 pin;

} gpio_pins;

gpio_pins pinsArray[NUMBER_OF_PINS] =

{

    {GPIO_PRT0, 0},

    {GPIO_PRT1, 1},

    {GPIO_PRT9, 2},

    {GPIO_PRT6, 3},

    {GPIO_PRT10, 4}

};

uint32 Custom_GetAllPinStatus(void)

{

    uint32 retStatus = 0;

    for(uint32 index = 0; index < NUMBER_OF_PINS; index++)

    {

        retStatus |= ((Cy_GPIO_Read(pinsArray[index].port, pinsArray[index].pin))<<index);

    }

    return retStatus;

}

Let me know if this helps or you need further clarifications.

Regards,

Meenakshi Sundaram R