test

Dependencies:   mbed Watchdog

Dependents:   STM32-MC_node

Committer:
ommpy
Date:
Mon Jul 06 17:18:59 2020 +0530
Revision:
0:d383e2dee0f7
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ommpy 0:d383e2dee0f7 1 /* mbed Microcontroller Library
ommpy 0:d383e2dee0f7 2 * Copyright (c) 2006-2013 ARM Limited
ommpy 0:d383e2dee0f7 3 * SPDX-License-Identifier: Apache-2.0
ommpy 0:d383e2dee0f7 4 *
ommpy 0:d383e2dee0f7 5 * Licensed under the Apache License, Version 2.0 (the "License");
ommpy 0:d383e2dee0f7 6 * you may not use this file except in compliance with the License.
ommpy 0:d383e2dee0f7 7 * You may obtain a copy of the License at
ommpy 0:d383e2dee0f7 8 *
ommpy 0:d383e2dee0f7 9 * http://www.apache.org/licenses/LICENSE-2.0
ommpy 0:d383e2dee0f7 10 *
ommpy 0:d383e2dee0f7 11 * Unless required by applicable law or agreed to in writing, software
ommpy 0:d383e2dee0f7 12 * distributed under the License is distributed on an "AS IS" BASIS,
ommpy 0:d383e2dee0f7 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ommpy 0:d383e2dee0f7 14 * See the License for the specific language governing permissions and
ommpy 0:d383e2dee0f7 15 * limitations under the License.
ommpy 0:d383e2dee0f7 16 */
ommpy 0:d383e2dee0f7 17 #ifndef MBED_PORTOUT_H
ommpy 0:d383e2dee0f7 18 #define MBED_PORTOUT_H
ommpy 0:d383e2dee0f7 19
ommpy 0:d383e2dee0f7 20 #include "platform/platform.h"
ommpy 0:d383e2dee0f7 21
ommpy 0:d383e2dee0f7 22 #if DEVICE_PORTOUT || defined(DOXYGEN_ONLY)
ommpy 0:d383e2dee0f7 23
ommpy 0:d383e2dee0f7 24 #include "hal/port_api.h"
ommpy 0:d383e2dee0f7 25 #include "platform/mbed_critical.h"
ommpy 0:d383e2dee0f7 26
ommpy 0:d383e2dee0f7 27 namespace mbed {
ommpy 0:d383e2dee0f7 28 /** \addtogroup drivers */
ommpy 0:d383e2dee0f7 29 /** A multiple pin digital output
ommpy 0:d383e2dee0f7 30 *
ommpy 0:d383e2dee0f7 31 * @note Synchronization level: Interrupt safe
ommpy 0:d383e2dee0f7 32 *
ommpy 0:d383e2dee0f7 33 * Example:
ommpy 0:d383e2dee0f7 34 * @code
ommpy 0:d383e2dee0f7 35 * // Toggle all four LEDs
ommpy 0:d383e2dee0f7 36 *
ommpy 0:d383e2dee0f7 37 * #include "mbed.h"
ommpy 0:d383e2dee0f7 38 *
ommpy 0:d383e2dee0f7 39 * // LED1 = P1.18 LED2 = P1.20 LED3 = P1.21 LED4 = P1.23
ommpy 0:d383e2dee0f7 40 * #define LED_MASK 0x00B40000
ommpy 0:d383e2dee0f7 41 *
ommpy 0:d383e2dee0f7 42 * PortOut ledport(Port1, LED_MASK);
ommpy 0:d383e2dee0f7 43 *
ommpy 0:d383e2dee0f7 44 * int main() {
ommpy 0:d383e2dee0f7 45 * while(1) {
ommpy 0:d383e2dee0f7 46 * ledport = LED_MASK;
ommpy 0:d383e2dee0f7 47 * wait(1);
ommpy 0:d383e2dee0f7 48 * ledport = 0;
ommpy 0:d383e2dee0f7 49 * wait(1);
ommpy 0:d383e2dee0f7 50 * }
ommpy 0:d383e2dee0f7 51 * }
ommpy 0:d383e2dee0f7 52 * @endcode
ommpy 0:d383e2dee0f7 53 * @ingroup drivers
ommpy 0:d383e2dee0f7 54 */
ommpy 0:d383e2dee0f7 55 class PortOut {
ommpy 0:d383e2dee0f7 56 public:
ommpy 0:d383e2dee0f7 57
ommpy 0:d383e2dee0f7 58 /** Create a PortOut, connected to the specified port
ommpy 0:d383e2dee0f7 59 *
ommpy 0:d383e2dee0f7 60 * @param port Port to connect to (as defined in target's PortNames.h)
ommpy 0:d383e2dee0f7 61 * @param mask Bitmask defines which port pins are an output (0 - ignore, 1 - include)
ommpy 0:d383e2dee0f7 62 */
ommpy 0:d383e2dee0f7 63 PortOut(PortName port, int mask = 0xFFFFFFFF)
ommpy 0:d383e2dee0f7 64 {
ommpy 0:d383e2dee0f7 65 core_util_critical_section_enter();
ommpy 0:d383e2dee0f7 66 port_init(&_port, port, mask, PIN_OUTPUT);
ommpy 0:d383e2dee0f7 67 core_util_critical_section_exit();
ommpy 0:d383e2dee0f7 68 }
ommpy 0:d383e2dee0f7 69
ommpy 0:d383e2dee0f7 70 /** Write the value to the output port
ommpy 0:d383e2dee0f7 71 *
ommpy 0:d383e2dee0f7 72 * @param value An integer specifying a bit to write for every corresponding PortOut pin
ommpy 0:d383e2dee0f7 73 */
ommpy 0:d383e2dee0f7 74 void write(int value)
ommpy 0:d383e2dee0f7 75 {
ommpy 0:d383e2dee0f7 76 port_write(&_port, value);
ommpy 0:d383e2dee0f7 77 }
ommpy 0:d383e2dee0f7 78
ommpy 0:d383e2dee0f7 79 /** Read the value currently output on the port
ommpy 0:d383e2dee0f7 80 *
ommpy 0:d383e2dee0f7 81 * @returns
ommpy 0:d383e2dee0f7 82 * An integer with each bit corresponding to associated pin value
ommpy 0:d383e2dee0f7 83 */
ommpy 0:d383e2dee0f7 84 int read()
ommpy 0:d383e2dee0f7 85 {
ommpy 0:d383e2dee0f7 86 return port_read(&_port);
ommpy 0:d383e2dee0f7 87 }
ommpy 0:d383e2dee0f7 88
ommpy 0:d383e2dee0f7 89 /** A shorthand for write()
ommpy 0:d383e2dee0f7 90 * \sa PortOut::write()
ommpy 0:d383e2dee0f7 91 */
ommpy 0:d383e2dee0f7 92 PortOut &operator= (int value)
ommpy 0:d383e2dee0f7 93 {
ommpy 0:d383e2dee0f7 94 write(value);
ommpy 0:d383e2dee0f7 95 return *this;
ommpy 0:d383e2dee0f7 96 }
ommpy 0:d383e2dee0f7 97
ommpy 0:d383e2dee0f7 98 /** A shorthand for read()
ommpy 0:d383e2dee0f7 99 * \sa PortOut::read()
ommpy 0:d383e2dee0f7 100 */
ommpy 0:d383e2dee0f7 101 PortOut &operator= (PortOut &rhs)
ommpy 0:d383e2dee0f7 102 {
ommpy 0:d383e2dee0f7 103 write(rhs.read());
ommpy 0:d383e2dee0f7 104 return *this;
ommpy 0:d383e2dee0f7 105 }
ommpy 0:d383e2dee0f7 106
ommpy 0:d383e2dee0f7 107 /** A shorthand for read()
ommpy 0:d383e2dee0f7 108 * \sa PortOut::read()
ommpy 0:d383e2dee0f7 109 */
ommpy 0:d383e2dee0f7 110 operator int()
ommpy 0:d383e2dee0f7 111 {
ommpy 0:d383e2dee0f7 112 return read();
ommpy 0:d383e2dee0f7 113 }
ommpy 0:d383e2dee0f7 114
ommpy 0:d383e2dee0f7 115 private:
ommpy 0:d383e2dee0f7 116 port_t _port;
ommpy 0:d383e2dee0f7 117 };
ommpy 0:d383e2dee0f7 118
ommpy 0:d383e2dee0f7 119 } // namespace mbed
ommpy 0:d383e2dee0f7 120
ommpy 0:d383e2dee0f7 121 #endif
ommpy 0:d383e2dee0f7 122
ommpy 0:d383e2dee0f7 123 #endif