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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

TARGET_NRF51822/gpio_object.h@80:8e73be2a2ac1, 2014-02-21 (annotated)

Committer:
emilmont
Date:
Fri Feb 21 12:21:39 2014 +0000
Revision:
80:8e73be2a2ac1
First alpha release for the NRF51822 target (to be tested in the online IDE)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 80:8e73be2a2ac1 1 /* mbed Microcontroller Library
emilmont 80:8e73be2a2ac1 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 80:8e73be2a2ac1 3 *
emilmont 80:8e73be2a2ac1 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 80:8e73be2a2ac1 5 * you may not use this file except in compliance with the License.
emilmont 80:8e73be2a2ac1 6 * You may obtain a copy of the License at
emilmont 80:8e73be2a2ac1 7 *
emilmont 80:8e73be2a2ac1 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 80:8e73be2a2ac1 9 *
emilmont 80:8e73be2a2ac1 10 * Unless required by applicable law or agreed to in writing, software
emilmont 80:8e73be2a2ac1 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 80:8e73be2a2ac1 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 80:8e73be2a2ac1 13 * See the License for the specific language governing permissions and
emilmont 80:8e73be2a2ac1 14 * limitations under the License.
emilmont 80:8e73be2a2ac1 15 */
emilmont 80:8e73be2a2ac1 16 #ifndef MBED_GPIO_OBJECT_H
emilmont 80:8e73be2a2ac1 17 #define MBED_GPIO_OBJECT_H
emilmont 80:8e73be2a2ac1 18
emilmont 80:8e73be2a2ac1 19 #ifdef __cplusplus
emilmont 80:8e73be2a2ac1 20 extern "C" {
emilmont 80:8e73be2a2ac1 21 #endif
emilmont 80:8e73be2a2ac1 22
emilmont 80:8e73be2a2ac1 23 typedef struct {
emilmont 80:8e73be2a2ac1 24 PinName pin;
emilmont 80:8e73be2a2ac1 25 uint32_t mask;
emilmont 80:8e73be2a2ac1 26
emilmont 80:8e73be2a2ac1 27 __IO uint32_t *reg_dir;
emilmont 80:8e73be2a2ac1 28 __IO uint32_t *reg_set;
emilmont 80:8e73be2a2ac1 29 __IO uint32_t *reg_clr;
emilmont 80:8e73be2a2ac1 30 __I uint32_t *reg_in;
emilmont 80:8e73be2a2ac1 31 } gpio_t;
emilmont 80:8e73be2a2ac1 32
emilmont 80:8e73be2a2ac1 33 static inline void gpio_write(gpio_t *obj, int value) {
emilmont 80:8e73be2a2ac1 34 if (value)
emilmont 80:8e73be2a2ac1 35 *obj->reg_set = obj->mask;
emilmont 80:8e73be2a2ac1 36 else
emilmont 80:8e73be2a2ac1 37 *obj->reg_clr = obj->mask;
emilmont 80:8e73be2a2ac1 38 }
emilmont 80:8e73be2a2ac1 39
emilmont 80:8e73be2a2ac1 40 static inline int gpio_read(gpio_t *obj) {
emilmont 80:8e73be2a2ac1 41 return ((*obj->reg_in & obj->mask) ? 1 : 0);
emilmont 80:8e73be2a2ac1 42 }
emilmont 80:8e73be2a2ac1 43
emilmont 80:8e73be2a2ac1 44 #ifdef __cplusplus
emilmont 80:8e73be2a2ac1 45 }
emilmont 80:8e73be2a2ac1 46 #endif
emilmont 80:8e73be2a2ac1 47
emilmont 80:8e73be2a2ac1 48 #endif