雄介 太田 / mbed

mbed(SerialHalfDuplex入り)

Fork of mbed by mbed official

BusOut.h@64:e3affc9e7238, 2013-08-05 (annotated)

Committer:
bogdanm
Date:
Mon Aug 05 12:28:09 2013 +0300
Revision:
64:e3affc9e7238
Parent:
59:0883845fe643
Child:
65:5798e58a58b1
New build system structure, new target (LPC1347), bug fixes (I2C read/write errors, LPC11U24 memory map and others)

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.
simon.ford@mbed.co.uk 0:82220227f4fa 15 */
simon.ford@mbed.co.uk 0:82220227f4fa 16 #ifndef MBED_BUSOUT_H
simon.ford@mbed.co.uk 0:82220227f4fa 17 #define MBED_BUSOUT_H
simon.ford@mbed.co.uk 0:82220227f4fa 18
simon.ford@mbed.co.uk 0:82220227f4fa 19 #include "DigitalOut.h"
simon.ford@mbed.co.uk 0:82220227f4fa 20
simon.ford@mbed.co.uk 0:82220227f4fa 21 namespace mbed {
simon.ford@mbed.co.uk 0:82220227f4fa 22
emilmont 43:e2ed12d17f06 23 /** A digital output bus, used for setting the state of a collection of pins
simon.ford@mbed.co.uk 0:82220227f4fa 24 */
emilmont 44:24d45a770a51 25 class BusOut {
simon.ford@mbed.co.uk 0:82220227f4fa 26
simon.ford@mbed.co.uk 0:82220227f4fa 27 public:
simon.ford@mbed.co.uk 0:82220227f4fa 28
emilmont 43:e2ed12d17f06 29 /** Create an BusOut, connected to the specified pins
emilmont 43:e2ed12d17f06 30 *
emilmont 43:e2ed12d17f06 31 * @param p<n> DigitalOut pin to connect to bus bit <n> (p5-p30, NC)
rolf.meyer@arm.com 11:1c1ebd0324fa 32 *
emilmont 43:e2ed12d17f06 33 * @note
emilmont 44:24d45a770a51 34 * It is only required to specify as many pin variables as is required
emilmont 44:24d45a770a51 35 * for the bus; the rest will default to NC (not connected)
emilmont 44:24d45a770a51 36 */
rolf.meyer@arm.com 11:1c1ebd0324fa 37 BusOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC,
rolf.meyer@arm.com 11:1c1ebd0324fa 38 PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC,
rolf.meyer@arm.com 11:1c1ebd0324fa 39 PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC,
emilmont 44:24d45a770a51 40 PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC);
simon.ford@mbed.co.uk 0:82220227f4fa 41
emilmont 44:24d45a770a51 42 BusOut(PinName pins[16]);
simon.ford@mbed.co.uk 5:62573be585e9 43
rolf.meyer@arm.com 11:1c1ebd0324fa 44 virtual ~BusOut();
emilmont 44:24d45a770a51 45
emilmont 43:e2ed12d17f06 46 /** Write the value to the output bus
rolf.meyer@arm.com 11:1c1ebd0324fa 47 *
emilmont 43:e2ed12d17f06 48 * @param value An integer specifying a bit to write for every corresponding DigitalOut pin
rolf.meyer@arm.com 11:1c1ebd0324fa 49 */
simon.ford@mbed.co.uk 0:82220227f4fa 50 void write(int value);
simon.ford@mbed.co.uk 0:82220227f4fa 51
emilmont 43:e2ed12d17f06 52 /** Read the value currently output on the bus
rolf.meyer@arm.com 11:1c1ebd0324fa 53 *
emilmont 43:e2ed12d17f06 54 * @returns
emilmont 43:e2ed12d17f06 55 * An integer with each bit corresponding to associated DigitalOut pin setting
rolf.meyer@arm.com 11:1c1ebd0324fa 56 */
simon.ford@mbed.co.uk 0:82220227f4fa 57 int read();
simon.ford@mbed.co.uk 0:82220227f4fa 58
rolf.meyer@arm.com 11:1c1ebd0324fa 59 #ifdef MBED_OPERATORS
emilmont 43:e2ed12d17f06 60 /** A shorthand for write()
rolf.meyer@arm.com 11:1c1ebd0324fa 61 */
rolf.meyer@arm.com 11:1c1ebd0324fa 62 BusOut& operator= (int v);
rolf.meyer@arm.com 11:1c1ebd0324fa 63 BusOut& operator= (BusOut& rhs);
simon.ford@mbed.co.uk 0:82220227f4fa 64
emilmont 43:e2ed12d17f06 65 /** A shorthand for read()
rolf.meyer@arm.com 11:1c1ebd0324fa 66 */
rolf.meyer@arm.com 11:1c1ebd0324fa 67 operator int();
rolf.meyer@arm.com 11:1c1ebd0324fa 68 #endif
rolf.meyer@arm.com 11:1c1ebd0324fa 69
simon.ford@mbed.co.uk 0:82220227f4fa 70 protected:
rolf.meyer@arm.com 11:1c1ebd0324fa 71 DigitalOut* _pin[16];
simon.ford@mbed.co.uk 0:82220227f4fa 72 };
simon.ford@mbed.co.uk 0:82220227f4fa 73
simon.ford@mbed.co.uk 0:82220227f4fa 74 } // namespace mbed
simon.ford@mbed.co.uk 0:82220227f4fa 75
simon.ford@mbed.co.uk 1:6b7f447ca868 76 #endif