75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/*
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* File : led.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2009, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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*
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*/
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#include <MK64F12.h>
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#include "led.h"
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const rt_uint32_t led_mask[] = {1 << 21, 1 << 22, 1 << 26};
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void rt_hw_led_init(void)
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{
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SIM_SCGC5 |= (1 << SIM_SCGC5_PORTB_SHIFT);
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SIM_SCGC5 |= (1 << SIM_SCGC5_PORTE_SHIFT);
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PORTB->PCR[21] &= ~PORT_PCR_MUX_MASK;
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PORTB->PCR[21] |= PORT_PCR_MUX(1); //PTB21 is GPIO pin
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PORTB->PCR[22] &= ~PORT_PCR_MUX_MASK;
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PORTB->PCR[22] |= PORT_PCR_MUX(1); //PTB22 is GPIO pin
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PORTE->PCR[26] &= ~PORT_PCR_MUX_MASK;
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PORTE->PCR[26] |= PORT_PCR_MUX(1); //PTE26 is GPIO pin
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/* Switch LEDs off and enable output*/
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PTB->PDDR |= GPIO_PDDR_PDD(led_mask[1] | led_mask[0]);
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PTE->PDDR |= GPIO_PDDR_PDD(led_mask[2]);
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rt_hw_led_off(LED_RED);
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rt_hw_led_off(LED_GREEN);
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rt_hw_led_off(LED_BLUE);
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}
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void rt_hw_led_uninit(void)
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{
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PORTB->PCR[21] &= ~PORT_PCR_MUX_MASK;
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PORTB->PCR[22] &= ~PORT_PCR_MUX_MASK;
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PORTE->PCR[26] &= ~PORT_PCR_MUX_MASK;
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}
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void rt_hw_led_on(rt_uint32_t n)
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{
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if (n != LED_GREEN)
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{
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PTB->PCOR |= led_mask[n];
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}
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else
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{
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PTE->PCOR |= led_mask[n];
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}
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}
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void rt_hw_led_off(rt_uint32_t n)
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{
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if (n != LED_GREEN)
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{
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PTB->PSOR |= led_mask[n];
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}
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else
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{
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PTE->PSOR |= led_mask[n];
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}
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}
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