pmap.c

/*
 * -------------------------------------------
 *    MSP432 DriverLib - v3_21_00_05 
 * -------------------------------------------
 *
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 * Copyright (c) 2016, Texas Instruments Incorporated
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#include <debug.h>
#include <pmap.h>
#include <hw_memmap.h>

void PMAP_configurePorts(const uint8_t *portMapping, uint8_t pxMAPy,
        uint8_t numberOfPorts, uint8_t portMapReconfigure)
{
    uint_fast16_t i;

    ASSERT(
            (portMapReconfigure == PMAP_ENABLE_RECONFIGURATION)
                    || (portMapReconfigure == PMAP_DISABLE_RECONFIGURATION));

    //Get write-access to port mapping registers:
    PMAP->KEYID = PMAP_KEYID_VAL;

    //Enable/Disable reconfiguration during runtime
    PMAP->CTL = (PMAP->CTL & ~PMAP_CTL_PRECFG) | portMapReconfigure;

    //Configure Port Mapping:
    
    for (i = 0; i < numberOfPorts * 8; i++)
    {
        HWREG8(PMAP_BASE + i + pxMAPy) = portMapping[i];
    }

    //Disable write-access to port mapping registers:
    PMAP->KEYID = 0;
}