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PortOut.h@122:f9eeca106725, 2016-07-07 (annotated)

Committer:
Kojto
Date:
Thu Jul 07 14:34:11 2016 +0100
Revision:
122:f9eeca106725
Parent:
65:5798e58a58b1 
Release 122 of the mbed library



Changes:

- new targets - Nucleo L432KC, Beetle, Nucleo F446ZE, Nucleo L011K4

- Thread safety addition - mbed API should contain a statement about thread safety

- critical section API addition

- CAS API (core_util_atomic_incr/decr)

- DEVICE_ are generated from targets.json file, device.h deprecated

- Callback replaces FunctionPointer to provide std like interface

- mbed HAL API docs improvements

- toolchain - prexif attributes with MBED_

            - add new attributes - packed, weak, forcedinline, align

- target.json - contains targets definitions

- ST - L1XX - Cube update to 1.5

     - SPI clock selection fix (clock from APB domain)

     - F7 - Cube update v1.4.0

     - L0 -  baudrate init fix

     - L1 - Cube update v1.5

     - F3 - baudrate init fix, 3 targets CAN support

     - F4 - Cube update v1.12.0, 3 targets CAN support

     - L4XX - Cube update v1.5.1

     - F0 - update Cube to v1.5.0

     - L4 - 2 targets (L476RG/VG) CAN support

- NXP - pwm clock fix for KSDK2 MCU

      - LPC2368 - remove ARM toolchain support - due to regression

      - KSDK2 - fix SPI , I2C address and repeat start

- Silabs - some fixes backported from mbed 3

- Renesas - RZ_A1H - SystemCoreClockUpdate addition

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 65:5798e58a58b1 1 /* mbed Microcontroller Library
bogdanm 65:5798e58a58b1 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 65:5798e58a58b1 3 *
bogdanm 65:5798e58a58b1 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 65:5798e58a58b1 5 * you may not use this file except in compliance with the License.
bogdanm 65:5798e58a58b1 6 * You may obtain a copy of the License at
bogdanm 65:5798e58a58b1 7 *
bogdanm 65:5798e58a58b1 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 65:5798e58a58b1 9 *
bogdanm 65:5798e58a58b1 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 65:5798e58a58b1 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 65:5798e58a58b1 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 65:5798e58a58b1 13 * See the License for the specific language governing permissions and
bogdanm 65:5798e58a58b1 14 * limitations under the License.
bogdanm 65:5798e58a58b1 15 */
bogdanm 65:5798e58a58b1 16 #ifndef MBED_PORTOUT_H
bogdanm 65:5798e58a58b1 17 #define MBED_PORTOUT_H
bogdanm 65:5798e58a58b1 18
bogdanm 65:5798e58a58b1 19 #include "platform.h"
bogdanm 65:5798e58a58b1 20
bogdanm 65:5798e58a58b1 21 #if DEVICE_PORTOUT
bogdanm 65:5798e58a58b1 22
bogdanm 65:5798e58a58b1 23 #include "port_api.h"
Kojto 122:f9eeca106725 24 #include "critical.h"
bogdanm 65:5798e58a58b1 25
bogdanm 65:5798e58a58b1 26 namespace mbed {
bogdanm 65:5798e58a58b1 27 /** A multiple pin digital out
bogdanm 65:5798e58a58b1 28 *
Kojto 122:f9eeca106725 29 * @Note Synchronization level: Interrupt safe
Kojto 122:f9eeca106725 30 *
bogdanm 65:5798e58a58b1 31 * Example:
bogdanm 65:5798e58a58b1 32 * @code
bogdanm 65:5798e58a58b1 33 * // Toggle all four LEDs
bogdanm 65:5798e58a58b1 34 *
bogdanm 65:5798e58a58b1 35 * #include "mbed.h"
bogdanm 65:5798e58a58b1 36 *
bogdanm 65:5798e58a58b1 37 * // LED1 = P1.18 LED2 = P1.20 LED3 = P1.21 LED4 = P1.23
bogdanm 65:5798e58a58b1 38 * #define LED_MASK 0x00B40000
bogdanm 65:5798e58a58b1 39 *
bogdanm 65:5798e58a58b1 40 * PortOut ledport(Port1, LED_MASK);
bogdanm 65:5798e58a58b1 41 *
bogdanm 65:5798e58a58b1 42 * int main() {
bogdanm 65:5798e58a58b1 43 * while(1) {
bogdanm 65:5798e58a58b1 44 * ledport = LED_MASK;
bogdanm 65:5798e58a58b1 45 * wait(1);
bogdanm 65:5798e58a58b1 46 * ledport = 0;
bogdanm 65:5798e58a58b1 47 * wait(1);
bogdanm 65:5798e58a58b1 48 * }
bogdanm 65:5798e58a58b1 49 * }
bogdanm 65:5798e58a58b1 50 * @endcode
bogdanm 65:5798e58a58b1 51 */
bogdanm 65:5798e58a58b1 52 class PortOut {
bogdanm 65:5798e58a58b1 53 public:
bogdanm 65:5798e58a58b1 54
bogdanm 65:5798e58a58b1 55 /** Create an PortOut, connected to the specified port
bogdanm 65:5798e58a58b1 56 *
bogdanm 65:5798e58a58b1 57 * @param port Port to connect to (Port0-Port5)
bogdanm 65:5798e58a58b1 58 * @param mask A bitmask to identify which bits in the port should be included (0 - ignore)
bogdanm 65:5798e58a58b1 59 */
bogdanm 65:5798e58a58b1 60 PortOut(PortName port, int mask = 0xFFFFFFFF) {
Kojto 122:f9eeca106725 61 core_util_critical_section_enter();
bogdanm 65:5798e58a58b1 62 port_init(&_port, port, mask, PIN_OUTPUT);
Kojto 122:f9eeca106725 63 core_util_critical_section_exit();
bogdanm 65:5798e58a58b1 64 }
bogdanm 65:5798e58a58b1 65
bogdanm 65:5798e58a58b1 66 /** Write the value to the output port
bogdanm 65:5798e58a58b1 67 *
bogdanm 65:5798e58a58b1 68 * @param value An integer specifying a bit to write for every corresponding PortOut pin
bogdanm 65:5798e58a58b1 69 */
bogdanm 65:5798e58a58b1 70 void write(int value) {
bogdanm 65:5798e58a58b1 71 port_write(&_port, value);
bogdanm 65:5798e58a58b1 72 }
bogdanm 65:5798e58a58b1 73
bogdanm 65:5798e58a58b1 74 /** Read the value currently output on the port
bogdanm 65:5798e58a58b1 75 *
bogdanm 65:5798e58a58b1 76 * @returns
bogdanm 65:5798e58a58b1 77 * An integer with each bit corresponding to associated PortOut pin setting
bogdanm 65:5798e58a58b1 78 */
bogdanm 65:5798e58a58b1 79 int read() {
bogdanm 65:5798e58a58b1 80 return port_read(&_port);
bogdanm 65:5798e58a58b1 81 }
bogdanm 65:5798e58a58b1 82
bogdanm 65:5798e58a58b1 83 /** A shorthand for write()
bogdanm 65:5798e58a58b1 84 */
bogdanm 65:5798e58a58b1 85 PortOut& operator= (int value) {
bogdanm 65:5798e58a58b1 86 write(value);
bogdanm 65:5798e58a58b1 87 return *this;
bogdanm 65:5798e58a58b1 88 }
bogdanm 65:5798e58a58b1 89
bogdanm 65:5798e58a58b1 90 PortOut& operator= (PortOut& rhs) {
bogdanm 65:5798e58a58b1 91 write(rhs.read());
bogdanm 65:5798e58a58b1 92 return *this;
bogdanm 65:5798e58a58b1 93 }
bogdanm 65:5798e58a58b1 94
bogdanm 65:5798e58a58b1 95 /** A shorthand for read()
bogdanm 65:5798e58a58b1 96 */
bogdanm 65:5798e58a58b1 97 operator int() {
bogdanm 65:5798e58a58b1 98 return read();
bogdanm 65:5798e58a58b1 99 }
bogdanm 65:5798e58a58b1 100
bogdanm 65:5798e58a58b1 101 private:
bogdanm 65:5798e58a58b1 102 port_t _port;
bogdanm 65:5798e58a58b1 103 };
bogdanm 65:5798e58a58b1 104
bogdanm 65:5798e58a58b1 105 } // namespace mbed
bogdanm 65:5798e58a58b1 106
bogdanm 65:5798e58a58b1 107 #endif
bogdanm 65:5798e58a58b1 108
bogdanm 65:5798e58a58b1 109 #endif