FFT LED Display / 4180_EditThis_copy

this hurts

Dependencies:   FFT

mbed/drivers/PortOut.h@7:0d62545e6d73, 2020-12-03 (annotated)

Committer:
shyamgatech
Date:
Thu Dec 03 18:15:35 2020 +0000
Revision:
7:0d62545e6d73
Parent:
0:d6c9b09b4042 
addded gui mbed code;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
annieluo2 0:d6c9b09b4042 1 /* mbed Microcontroller Library
annieluo2 0:d6c9b09b4042 2 * Copyright (c) 2006-2013 ARM Limited
annieluo2 0:d6c9b09b4042 3 *
annieluo2 0:d6c9b09b4042 4 * Licensed under the Apache License, Version 2.0 (the "License");
annieluo2 0:d6c9b09b4042 5 * you may not use this file except in compliance with the License.
annieluo2 0:d6c9b09b4042 6 * You may obtain a copy of the License at
annieluo2 0:d6c9b09b4042 7 *
annieluo2 0:d6c9b09b4042 8 * http://www.apache.org/licenses/LICENSE-2.0
annieluo2 0:d6c9b09b4042 9 *
annieluo2 0:d6c9b09b4042 10 * Unless required by applicable law or agreed to in writing, software
annieluo2 0:d6c9b09b4042 11 * distributed under the License is distributed on an "AS IS" BASIS,
annieluo2 0:d6c9b09b4042 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
annieluo2 0:d6c9b09b4042 13 * See the License for the specific language governing permissions and
annieluo2 0:d6c9b09b4042 14 * limitations under the License.
annieluo2 0:d6c9b09b4042 15 */
annieluo2 0:d6c9b09b4042 16 #ifndef MBED_PORTOUT_H
annieluo2 0:d6c9b09b4042 17 #define MBED_PORTOUT_H
annieluo2 0:d6c9b09b4042 18
annieluo2 0:d6c9b09b4042 19 #include "platform/platform.h"
annieluo2 0:d6c9b09b4042 20
annieluo2 0:d6c9b09b4042 21 #if DEVICE_PORTOUT
annieluo2 0:d6c9b09b4042 22
annieluo2 0:d6c9b09b4042 23 #include "hal/port_api.h"
annieluo2 0:d6c9b09b4042 24 #include "platform/critical.h"
annieluo2 0:d6c9b09b4042 25
annieluo2 0:d6c9b09b4042 26 namespace mbed {
annieluo2 0:d6c9b09b4042 27 /** \addtogroup drivers */
annieluo2 0:d6c9b09b4042 28 /** @{*/
annieluo2 0:d6c9b09b4042 29 /** A multiple pin digital out
annieluo2 0:d6c9b09b4042 30 *
annieluo2 0:d6c9b09b4042 31 * @Note Synchronization level: Interrupt safe
annieluo2 0:d6c9b09b4042 32 *
annieluo2 0:d6c9b09b4042 33 * Example:
annieluo2 0:d6c9b09b4042 34 * @code
annieluo2 0:d6c9b09b4042 35 * // Toggle all four LEDs
annieluo2 0:d6c9b09b4042 36 *
annieluo2 0:d6c9b09b4042 37 * #include "mbed.h"
annieluo2 0:d6c9b09b4042 38 *
annieluo2 0:d6c9b09b4042 39 * // LED1 = P1.18 LED2 = P1.20 LED3 = P1.21 LED4 = P1.23
annieluo2 0:d6c9b09b4042 40 * #define LED_MASK 0x00B40000
annieluo2 0:d6c9b09b4042 41 *
annieluo2 0:d6c9b09b4042 42 * PortOut ledport(Port1, LED_MASK);
annieluo2 0:d6c9b09b4042 43 *
annieluo2 0:d6c9b09b4042 44 * int main() {
annieluo2 0:d6c9b09b4042 45 * while(1) {
annieluo2 0:d6c9b09b4042 46 * ledport = LED_MASK;
annieluo2 0:d6c9b09b4042 47 * wait(1);
annieluo2 0:d6c9b09b4042 48 * ledport = 0;
annieluo2 0:d6c9b09b4042 49 * wait(1);
annieluo2 0:d6c9b09b4042 50 * }
annieluo2 0:d6c9b09b4042 51 * }
annieluo2 0:d6c9b09b4042 52 * @endcode
annieluo2 0:d6c9b09b4042 53 */
annieluo2 0:d6c9b09b4042 54 class PortOut {
annieluo2 0:d6c9b09b4042 55 public:
annieluo2 0:d6c9b09b4042 56
annieluo2 0:d6c9b09b4042 57 /** Create an PortOut, connected to the specified port
annieluo2 0:d6c9b09b4042 58 *
annieluo2 0:d6c9b09b4042 59 * @param port Port to connect to (Port0-Port5)
annieluo2 0:d6c9b09b4042 60 * @param mask A bitmask to identify which bits in the port should be included (0 - ignore)
annieluo2 0:d6c9b09b4042 61 */
annieluo2 0:d6c9b09b4042 62 PortOut(PortName port, int mask = 0xFFFFFFFF) {
annieluo2 0:d6c9b09b4042 63 core_util_critical_section_enter();
annieluo2 0:d6c9b09b4042 64 port_init(&_port, port, mask, PIN_OUTPUT);
annieluo2 0:d6c9b09b4042 65 core_util_critical_section_exit();
annieluo2 0:d6c9b09b4042 66 }
annieluo2 0:d6c9b09b4042 67
annieluo2 0:d6c9b09b4042 68 /** Write the value to the output port
annieluo2 0:d6c9b09b4042 69 *
annieluo2 0:d6c9b09b4042 70 * @param value An integer specifying a bit to write for every corresponding PortOut pin
annieluo2 0:d6c9b09b4042 71 */
annieluo2 0:d6c9b09b4042 72 void write(int value) {
annieluo2 0:d6c9b09b4042 73 port_write(&_port, value);
annieluo2 0:d6c9b09b4042 74 }
annieluo2 0:d6c9b09b4042 75
annieluo2 0:d6c9b09b4042 76 /** Read the value currently output on the port
annieluo2 0:d6c9b09b4042 77 *
annieluo2 0:d6c9b09b4042 78 * @returns
annieluo2 0:d6c9b09b4042 79 * An integer with each bit corresponding to associated PortOut pin setting
annieluo2 0:d6c9b09b4042 80 */
annieluo2 0:d6c9b09b4042 81 int read() {
annieluo2 0:d6c9b09b4042 82 return port_read(&_port);
annieluo2 0:d6c9b09b4042 83 }
annieluo2 0:d6c9b09b4042 84
annieluo2 0:d6c9b09b4042 85 /** A shorthand for write()
annieluo2 0:d6c9b09b4042 86 */
annieluo2 0:d6c9b09b4042 87 PortOut& operator= (int value) {
annieluo2 0:d6c9b09b4042 88 write(value);
annieluo2 0:d6c9b09b4042 89 return *this;
annieluo2 0:d6c9b09b4042 90 }
annieluo2 0:d6c9b09b4042 91
annieluo2 0:d6c9b09b4042 92 PortOut& operator= (PortOut& rhs) {
annieluo2 0:d6c9b09b4042 93 write(rhs.read());
annieluo2 0:d6c9b09b4042 94 return *this;
annieluo2 0:d6c9b09b4042 95 }
annieluo2 0:d6c9b09b4042 96
annieluo2 0:d6c9b09b4042 97 /** A shorthand for read()
annieluo2 0:d6c9b09b4042 98 */
annieluo2 0:d6c9b09b4042 99 operator int() {
annieluo2 0:d6c9b09b4042 100 return read();
annieluo2 0:d6c9b09b4042 101 }
annieluo2 0:d6c9b09b4042 102
annieluo2 0:d6c9b09b4042 103 private:
annieluo2 0:d6c9b09b4042 104 port_t _port;
annieluo2 0:d6c9b09b4042 105 };
annieluo2 0:d6c9b09b4042 106
annieluo2 0:d6c9b09b4042 107 } // namespace mbed
annieluo2 0:d6c9b09b4042 108
annieluo2 0:d6c9b09b4042 109 #endif
annieluo2 0:d6c9b09b4042 110
annieluo2 0:d6c9b09b4042 111 #endif
annieluo2 0:d6c9b09b4042 112
annieluo2 0:d6c9b09b4042 113 /** @}*/