/** @defgroup gpio_defines GPIO Defines @brief Defined Constants and Types for the LPC17xx General Purpose I/O @ingroup LPC17xx_defines @version 1.0.0 @author @htmlonly © @endhtmlonly 2009 Uwe Hermann @date 10 March 2013 LGPL License Terms @ref lgpl_license */ /* * This file is part of the libopencm3 project. * * Copyright (C) 2010 Uwe Hermann * * This library is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library. If not, see . */ #ifndef LPC17XX_GPIO_H #define LPC17XX_GPIO_H /**@{*/ #include #include /* --- Convenience macros -------------------------------------------------- */ /* GPIO port base addresses (for convenience) */ #define GPIO0 GPIO_PIO0_BASE #define GPIO1 GPIO_PIO1_BASE #define GPIO2 GPIO_PIO2_BASE #define GPIO3 GPIO_PIO3_BASE #define GPIO4 GPIO_PIO4_BASE /* GPIO number definitions (for convenience) */ #define GPIOPIN0 (1 << 0) #define GPIOPIN1 (1 << 1) #define GPIOPIN2 (1 << 2) #define GPIOPIN3 (1 << 3) #define GPIOPIN4 (1 << 4) #define GPIOPIN5 (1 << 5) #define GPIOPIN6 (1 << 6) #define GPIOPIN7 (1 << 7) #define GPIOPIN8 (1 << 8) #define GPIOPIN9 (1 << 9) #define GPIOPIN10 (1 << 10) #define GPIOPIN11 (1 << 11) #define GPIOPIN12 (1 << 12) #define GPIOPIN13 (1 << 13) #define GPIOPIN14 (1 << 14) #define GPIOPIN15 (1 << 15) #define GPIOPIN16 (1 << 16) #define GPIOPIN17 (1 << 17) #define GPIOPIN18 (1 << 18) #define GPIOPIN19 (1 << 19) #define GPIOPIN20 (1 << 20) #define GPIOPIN21 (1 << 21) #define GPIOPIN22 (1 << 22) #define GPIOPIN23 (1 << 23) #define GPIOPIN24 (1 << 24) #define GPIOPIN25 (1 << 25) #define GPIOPIN26 (1 << 26) #define GPIOPIN27 (1 << 27) #define GPIOPIN28 (1 << 28) #define GPIOPIN29 (1 << 29) #define GPIOPIN30 (1 << 30) #define GPIOPIN31 (1 << 31) /* --- GPIO registers ------------------------------------------------------ */ /* GPIO data direction register (GPIOn_DIR) */ #define GPIO_DIR(port) MMIO32((port) + 0x00) #define GPIO0_DIR GPIO_DIR(GPIO0) #define GPIO1_DIR GPIO_DIR(GPIO1) #define GPIO2_DIR GPIO_DIR(GPIO2) #define GPIO3_DIR GPIO_DIR(GPIO3) #define GPIO4_DIR GPIO_DIR(GPIO4) /* GPIO fast mask register (GPIOn_DIR) */ #define GPIO_MASK(port) MMIO32((port) + 0x10) #define GPIO0_MASK GPIO_MASK(GPIO0) #define GPIO1_MASK GPIO_MASK(GPIO1) #define GPIO2_MASK GPIO_MASK(GPIO2) #define GPIO3_MASK GPIO_MASK(GPIO3) #define GPIO4_MASK GPIO_MASK(GPIO4) /* GPIO port pin value register (GPIOn_PIN) */ #define GPIO_PIN(port) MMIO32((port) + 0x14) #define GPIO0_PIN GPIO_PIN(GPIO0) #define GPIO1_PIN GPIO_PIN(GPIO1) #define GPIO2_PIN GPIO_PIN(GPIO2) #define GPIO3_PIN GPIO_PIN(GPIO3) #define GPIO4_PIN GPIO_PIN(GPIO4) /* GPIO port output set register (GPIOn_SET) */ #define GPIO_SET(port) MMIO32((port) + 0x18) #define GPIO0_SET GPIO_SET(GPIO0) #define GPIO1_SET GPIO_SET(GPIO1) #define GPIO2_SET GPIO_SET(GPIO2) #define GPIO3_SET GPIO_SET(GPIO3) #define GPIO4_SET GPIO_SET(GPIO4) /* GPIO port output clear register (GPIOn_CLR) */ #define GPIO_CLR(port) MMIO32((port) + 0x1C) #define GPIO0_CLR GPIO_CLR(GPIO0) #define GPIO1_CLR GPIO_CLR(GPIO1) #define GPIO2_CLR GPIO_CLR(GPIO2) #define GPIO3_CLR GPIO_CLR(GPIO3) #define GPIO4_CLR GPIO_CLR(GPIO4) /* GPIO interrupt register map */ /* Interrupt enable rising edge */ #define GPIO0_IER MMIO32(GPIOINTERRUPT_BASE + 0x90) #define GPIO2_IER MMIO32(GPIOINTERRUPT_BASE + 0xB0) /* Interrupt enable falling edge */ #define GPIO0_IEF MMIO32(GPIOINTERRUPT_BASE + 0x94) #define GPIO2_IEF MMIO32(GPIOINTERRUPT_BASE + 0xB4) /* Interrupt status rising edge */ #define GPIO0_ISR MMIO32(GPIOINTERRUPT_BASE + 0x84) #define GPIO2_ISR MMIO32(GPIOINTERRUPT_BASE + 0xA4) /* Interrupt status falling edge */ #define GPIO0_ISF MMIO32(GPIOINTERRUPT_BASE + 0x88) #define GPIO2_ISF MMIO32(GPIOINTERRUPT_BASE + 0xA8) /* Interrupt clear */ #define GPIO0_IC MMIO32(GPIOINTERRUPT_BASE + 0x8C) #define GPIO1_IC MMIO32(GPIOINTERRUPT_BASE + 0xAC) /* Overall interrupt status */ #define GPIO_IS MMIO32(GPIOINTERRUPT_BASE + 0x80) BEGIN_DECLS void gpio_set(uint32_t gpioport, uint32_t gpios); void gpio_clear(uint32_t gpioport, uint32_t gpios); END_DECLS /**@}*/ #endif