39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/*
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* gpio_helper.c
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*
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* Created: 22/1/2016 15:28:48
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* Author: akatran
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*/
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#include "gpio_helper.h"
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/**
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* Get the port corresponding in portnum. Default is PORTC.
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*/
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PORT_t* GPIO_getPort(int pinnum, uint8_t* pin_bm)
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//PORT_t * GPIO_getPort(int portnum)
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{
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PORT_t* port = &PORTC;
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if ((pinnum >= XMEGA_PORTA_PIN0) && (pinnum <= XMEGA_PORTA_PIN7)) {
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port = &PORTA;
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*pin_bm = (1 << pinnum);
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} else if ((pinnum >= XMEGA_PORTB_PIN0) && (pinnum <= XMEGA_PORTB_PIN7)) {
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port = &PORTB;
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*pin_bm = (1 << (pinnum - 8));
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} else if ((pinnum >= XMEGA_PORTC_PIN0) && (pinnum <= XMEGA_PORTC_PIN7)) {
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port = &PORTC;
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*pin_bm = (1 << (pinnum - 16));
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} else if ((pinnum >= XMEGA_PORTD_PIN0) && (pinnum <= XMEGA_PORTD_PIN7)) {
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port = &PORTD;
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*pin_bm = (1 << (pinnum - 24));
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} else if ((pinnum >= XMEGA_PORTE_PIN0) && (pinnum <= XMEGA_PORTE_PIN7)) {
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port = &PORTE;
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*pin_bm = (1 << (pinnum - 32));
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} else if ((pinnum >= XMEGA_PORTF_PIN0) && (pinnum <= XMEGA_PORTF_PIN7)) {
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port = &PORTF;
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*pin_bm = (1 << (pinnum - 40));
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}
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return port;
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} |