/* * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * */ #include #include "led.h" const rt_uint32_t led_mask[] = {1 << 21, 1 << 22, 1 << 26}; void rt_hw_led_init(void) { SIM->SCGC5 |= (1 << SIM_SCGC5_PORTB_SHIFT); SIM->SCGC5 |= (1 << SIM_SCGC5_PORTE_SHIFT); PORTB->PCR[21] &= ~PORT_PCR_MUX_MASK; PORTB->PCR[21] |= PORT_PCR_MUX(1); //PTB21 is GPIO pin PORTB->PCR[22] &= ~PORT_PCR_MUX_MASK; PORTB->PCR[22] |= PORT_PCR_MUX(1); //PTB22 is GPIO pin PORTE->PCR[26] &= ~PORT_PCR_MUX_MASK; PORTE->PCR[26] |= PORT_PCR_MUX(1); //PTE26 is GPIO pin /* Switch LEDs off and enable output*/ PTB->PDDR |= GPIO_PDDR_PDD(led_mask[1] | led_mask[0]); PTE->PDDR |= GPIO_PDDR_PDD(led_mask[2]); rt_hw_led_off(LED_RED); rt_hw_led_off(LED_GREEN); rt_hw_led_off(LED_BLUE); } void rt_hw_led_uninit(void) { PORTB->PCR[21] &= ~PORT_PCR_MUX_MASK; PORTB->PCR[22] &= ~PORT_PCR_MUX_MASK; PORTE->PCR[26] &= ~PORT_PCR_MUX_MASK; } void rt_hw_led_on(rt_uint32_t n) { if (n != LED_GREEN) { PTB->PCOR |= led_mask[n]; } else { PTE->PCOR |= led_mask[n]; } } void rt_hw_led_off(rt_uint32_t n) { if (n != LED_GREEN) { PTB->PSOR |= led_mask[n]; } else { PTE->PSOR |= led_mask[n]; } }