雄介 太田 / mbed

mbed(SerialHalfDuplex入り)

Fork of mbed by mbed official

PortIn.h@59:0883845fe643, 2013-02-18 (annotated)

Committer:
emilmont
Date:
Mon Feb 18 11:12:58 2013 +0000
Revision:
59:0883845fe643
Parent:
55:d722ed6a4237
Child:
65:5798e58a58b1
Add pinmap NC terminators for LPC1768 CAN.

Update the license from MIT to Apache v2.

Make the semihost code target independent using opportune defines for the UID and MAC.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 44:24d45a770a51 1 /* mbed Microcontroller Library
emilmont 54:71b101360fb9 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 44:24d45a770a51 3 *
emilmont 59:0883845fe643 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 59:0883845fe643 5 * you may not use this file except in compliance with the License.
emilmont 59:0883845fe643 6 * You may obtain a copy of the License at
emilmont 59:0883845fe643 7 *
emilmont 59:0883845fe643 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 44:24d45a770a51 9 *
emilmont 59:0883845fe643 10 * Unless required by applicable law or agreed to in writing, software
emilmont 59:0883845fe643 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 59:0883845fe643 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 59:0883845fe643 13 * See the License for the specific language governing permissions and
emilmont 59:0883845fe643 14 * limitations under the License.
emilmont 44:24d45a770a51 15 */
emilmont 44:24d45a770a51 16 #ifndef MBED_PORTIN_H
emilmont 44:24d45a770a51 17 #define MBED_PORTIN_H
emilmont 44:24d45a770a51 18
emilmont 44:24d45a770a51 19 #include "platform.h"
emilmont 44:24d45a770a51 20
emilmont 44:24d45a770a51 21 #if DEVICE_PORTIN
emilmont 44:24d45a770a51 22
emilmont 44:24d45a770a51 23 #include "port_api.h"
emilmont 44:24d45a770a51 24
emilmont 44:24d45a770a51 25 namespace mbed {
emilmont 44:24d45a770a51 26
emilmont 44:24d45a770a51 27 /** A multiple pin digital input
emilmont 44:24d45a770a51 28 *
emilmont 44:24d45a770a51 29 * Example:
emilmont 44:24d45a770a51 30 * @code
emilmont 44:24d45a770a51 31 * // Switch on an LED if any of mbed pins 21-26 is high
emilmont 44:24d45a770a51 32 *
emilmont 44:24d45a770a51 33 * #include "mbed.h"
emilmont 44:24d45a770a51 34 *
emilmont 44:24d45a770a51 35 * PortIn p(Port2, 0x0000003F); // p21-p26
emilmont 44:24d45a770a51 36 * DigitalOut ind(LED4);
emilmont 44:24d45a770a51 37 *
emilmont 44:24d45a770a51 38 * int main() {
emilmont 44:24d45a770a51 39 * while(1) {
emilmont 44:24d45a770a51 40 * int pins = p.read();
emilmont 44:24d45a770a51 41 * if(pins) {
emilmont 44:24d45a770a51 42 * ind = 1;
emilmont 44:24d45a770a51 43 * } else {
emilmont 44:24d45a770a51 44 * ind = 0;
emilmont 44:24d45a770a51 45 * }
emilmont 44:24d45a770a51 46 * }
emilmont 44:24d45a770a51 47 * }
emilmont 44:24d45a770a51 48 * @endcode
emilmont 44:24d45a770a51 49 */
emilmont 44:24d45a770a51 50 class PortIn {
emilmont 44:24d45a770a51 51 public:
emilmont 44:24d45a770a51 52
emilmont 44:24d45a770a51 53 /** Create an PortIn, connected to the specified port
emilmont 44:24d45a770a51 54 *
emilmont 44:24d45a770a51 55 * @param port Port to connect to (Port0-Port5)
emilmont 44:24d45a770a51 56 * @param mask A bitmask to identify which bits in the port should be included (0 - ignore)
emilmont 55:d722ed6a4237 57 */
emilmont 44:24d45a770a51 58 PortIn(PortName port, int mask = 0xFFFFFFFF) {
emilmont 44:24d45a770a51 59 port_init(&_port, port, mask, PIN_INPUT);
emilmont 44:24d45a770a51 60 }
emilmont 55:d722ed6a4237 61
emilmont 44:24d45a770a51 62 /** Read the value currently output on the port
emilmont 44:24d45a770a51 63 *
emilmont 44:24d45a770a51 64 * @returns
emilmont 44:24d45a770a51 65 * An integer with each bit corresponding to associated port pin setting
emilmont 44:24d45a770a51 66 */
emilmont 44:24d45a770a51 67 int read() {
emilmont 44:24d45a770a51 68 return port_read(&_port);
emilmont 44:24d45a770a51 69 }
emilmont 55:d722ed6a4237 70
emilmont 44:24d45a770a51 71 /** Set the input pin mode
emilmont 44:24d45a770a51 72 *
emilmont 44:24d45a770a51 73 * @param mode PullUp, PullDown, PullNone, OpenDrain
emilmont 44:24d45a770a51 74 */
emilmont 44:24d45a770a51 75 void mode(PinMode mode) {
emilmont 44:24d45a770a51 76 port_mode(&_port, mode);
emilmont 44:24d45a770a51 77 }
emilmont 55:d722ed6a4237 78
emilmont 44:24d45a770a51 79 /** A shorthand for read()
emilmont 44:24d45a770a51 80 */
emilmont 55:d722ed6a4237 81 operator int() {
emilmont 44:24d45a770a51 82 return read();
emilmont 44:24d45a770a51 83 }
emilmont 44:24d45a770a51 84
emilmont 44:24d45a770a51 85 private:
emilmont 44:24d45a770a51 86 port_t _port;
emilmont 44:24d45a770a51 87 };
emilmont 44:24d45a770a51 88
emilmont 44:24d45a770a51 89 } // namespace mbed
emilmont 44:24d45a770a51 90
emilmont 44:24d45a770a51 91 #endif
emilmont 44:24d45a770a51 92
emilmont 44:24d45a770a51 93 #endif