Gonzalo Matarrubia / Mbed LPC1549 mod

This repo contains the libraries of Mbed for LPC1549 with following changes: - IAP commands. - EEPROM write and read. - UART write and read (public) - CAN can_s -> LPC_C_CAN0_Type *can

mbed/PwmOut.h@0:820a69dfd200, 2015-04-14 (annotated)

Committer:
gmatarrubia
Date:
Tue Apr 14 15:00:13 2015 +0200
Revision:
0:820a69dfd200
Initial repo. IAP commands, EEPROM write/read, UART write/read, CAN

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gmatarrubia 0:820a69dfd200 1 /* mbed Microcontroller Library
gmatarrubia 0:820a69dfd200 2 * Copyright (c) 2006-2013 ARM Limited
gmatarrubia 0:820a69dfd200 3 *
gmatarrubia 0:820a69dfd200 4 * Licensed under the Apache License, Version 2.0 (the "License");
gmatarrubia 0:820a69dfd200 5 * you may not use this file except in compliance with the License.
gmatarrubia 0:820a69dfd200 6 * You may obtain a copy of the License at
gmatarrubia 0:820a69dfd200 7 *
gmatarrubia 0:820a69dfd200 8 * http://www.apache.org/licenses/LICENSE-2.0
gmatarrubia 0:820a69dfd200 9 *
gmatarrubia 0:820a69dfd200 10 * Unless required by applicable law or agreed to in writing, software
gmatarrubia 0:820a69dfd200 11 * distributed under the License is distributed on an "AS IS" BASIS,
gmatarrubia 0:820a69dfd200 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
gmatarrubia 0:820a69dfd200 13 * See the License for the specific language governing permissions and
gmatarrubia 0:820a69dfd200 14 * limitations under the License.
gmatarrubia 0:820a69dfd200 15 */
gmatarrubia 0:820a69dfd200 16 #ifndef MBED_PWMOUT_H
gmatarrubia 0:820a69dfd200 17 #define MBED_PWMOUT_H
gmatarrubia 0:820a69dfd200 18
gmatarrubia 0:820a69dfd200 19 #include "platform.h"
gmatarrubia 0:820a69dfd200 20
gmatarrubia 0:820a69dfd200 21 #if DEVICE_PWMOUT
gmatarrubia 0:820a69dfd200 22 #include "pwmout_api.h"
gmatarrubia 0:820a69dfd200 23
gmatarrubia 0:820a69dfd200 24 namespace mbed {
gmatarrubia 0:820a69dfd200 25
gmatarrubia 0:820a69dfd200 26 /** A pulse-width modulation digital output
gmatarrubia 0:820a69dfd200 27 *
gmatarrubia 0:820a69dfd200 28 * Example
gmatarrubia 0:820a69dfd200 29 * @code
gmatarrubia 0:820a69dfd200 30 * // Fade a led on.
gmatarrubia 0:820a69dfd200 31 * #include "mbed.h"
gmatarrubia 0:820a69dfd200 32 *
gmatarrubia 0:820a69dfd200 33 * PwmOut led(LED1);
gmatarrubia 0:820a69dfd200 34 *
gmatarrubia 0:820a69dfd200 35 * int main() {
gmatarrubia 0:820a69dfd200 36 * while(1) {
gmatarrubia 0:820a69dfd200 37 * led = led + 0.01;
gmatarrubia 0:820a69dfd200 38 * wait(0.2);
gmatarrubia 0:820a69dfd200 39 * if(led == 1.0) {
gmatarrubia 0:820a69dfd200 40 * led = 0;
gmatarrubia 0:820a69dfd200 41 * }
gmatarrubia 0:820a69dfd200 42 * }
gmatarrubia 0:820a69dfd200 43 * }
gmatarrubia 0:820a69dfd200 44 * @endcode
gmatarrubia 0:820a69dfd200 45 *
gmatarrubia 0:820a69dfd200 46 * @note
gmatarrubia 0:820a69dfd200 47 * On the LPC1768 and LPC2368, the PWMs all share the same
gmatarrubia 0:820a69dfd200 48 * period - if you change the period for one, you change it for all.
gmatarrubia 0:820a69dfd200 49 * Although routines that change the period maintain the duty cycle
gmatarrubia 0:820a69dfd200 50 * for its PWM, all other PWMs will require their duty cycle to be
gmatarrubia 0:820a69dfd200 51 * refreshed.
gmatarrubia 0:820a69dfd200 52 */
gmatarrubia 0:820a69dfd200 53 class PwmOut {
gmatarrubia 0:820a69dfd200 54
gmatarrubia 0:820a69dfd200 55 public:
gmatarrubia 0:820a69dfd200 56
gmatarrubia 0:820a69dfd200 57 /** Create a PwmOut connected to the specified pin
gmatarrubia 0:820a69dfd200 58 *
gmatarrubia 0:820a69dfd200 59 * @param pin PwmOut pin to connect to
gmatarrubia 0:820a69dfd200 60 */
gmatarrubia 0:820a69dfd200 61 PwmOut(PinName pin) {
gmatarrubia 0:820a69dfd200 62 pwmout_init(&_pwm, pin);
gmatarrubia 0:820a69dfd200 63 }
gmatarrubia 0:820a69dfd200 64
gmatarrubia 0:820a69dfd200 65 /** Set the ouput duty-cycle, specified as a percentage (float)
gmatarrubia 0:820a69dfd200 66 *
gmatarrubia 0:820a69dfd200 67 * @param value A floating-point value representing the output duty-cycle,
gmatarrubia 0:820a69dfd200 68 * specified as a percentage. The value should lie between
gmatarrubia 0:820a69dfd200 69 * 0.0f (representing on 0%) and 1.0f (representing on 100%).
gmatarrubia 0:820a69dfd200 70 * Values outside this range will be saturated to 0.0f or 1.0f.
gmatarrubia 0:820a69dfd200 71 */
gmatarrubia 0:820a69dfd200 72 void write(float value) {
gmatarrubia 0:820a69dfd200 73 pwmout_write(&_pwm, value);
gmatarrubia 0:820a69dfd200 74 }
gmatarrubia 0:820a69dfd200 75
gmatarrubia 0:820a69dfd200 76 /** Return the current output duty-cycle setting, measured as a percentage (float)
gmatarrubia 0:820a69dfd200 77 *
gmatarrubia 0:820a69dfd200 78 * @returns
gmatarrubia 0:820a69dfd200 79 * A floating-point value representing the current duty-cycle being output on the pin,
gmatarrubia 0:820a69dfd200 80 * measured as a percentage. The returned value will lie between
gmatarrubia 0:820a69dfd200 81 * 0.0f (representing on 0%) and 1.0f (representing on 100%).
gmatarrubia 0:820a69dfd200 82 *
gmatarrubia 0:820a69dfd200 83 * @note
gmatarrubia 0:820a69dfd200 84 * This value may not match exactly the value set by a previous <write>.
gmatarrubia 0:820a69dfd200 85 */
gmatarrubia 0:820a69dfd200 86 float read() {
gmatarrubia 0:820a69dfd200 87 return pwmout_read(&_pwm);
gmatarrubia 0:820a69dfd200 88 }
gmatarrubia 0:820a69dfd200 89
gmatarrubia 0:820a69dfd200 90 /** Set the PWM period, specified in seconds (float), keeping the duty cycle the same.
gmatarrubia 0:820a69dfd200 91 *
gmatarrubia 0:820a69dfd200 92 * @note
gmatarrubia 0:820a69dfd200 93 * The resolution is currently in microseconds; periods smaller than this
gmatarrubia 0:820a69dfd200 94 * will be set to zero.
gmatarrubia 0:820a69dfd200 95 */
gmatarrubia 0:820a69dfd200 96 void period(float seconds) {
gmatarrubia 0:820a69dfd200 97 pwmout_period(&_pwm, seconds);
gmatarrubia 0:820a69dfd200 98 }
gmatarrubia 0:820a69dfd200 99
gmatarrubia 0:820a69dfd200 100 /** Set the PWM period, specified in milli-seconds (int), keeping the duty cycle the same.
gmatarrubia 0:820a69dfd200 101 */
gmatarrubia 0:820a69dfd200 102 void period_ms(int ms) {
gmatarrubia 0:820a69dfd200 103 pwmout_period_ms(&_pwm, ms);
gmatarrubia 0:820a69dfd200 104 }
gmatarrubia 0:820a69dfd200 105
gmatarrubia 0:820a69dfd200 106 /** Set the PWM period, specified in micro-seconds (int), keeping the duty cycle the same.
gmatarrubia 0:820a69dfd200 107 */
gmatarrubia 0:820a69dfd200 108 void period_us(int us) {
gmatarrubia 0:820a69dfd200 109 pwmout_period_us(&_pwm, us);
gmatarrubia 0:820a69dfd200 110 }
gmatarrubia 0:820a69dfd200 111
gmatarrubia 0:820a69dfd200 112 /** Set the PWM pulsewidth, specified in seconds (float), keeping the period the same.
gmatarrubia 0:820a69dfd200 113 */
gmatarrubia 0:820a69dfd200 114 void pulsewidth(float seconds) {
gmatarrubia 0:820a69dfd200 115 pwmout_pulsewidth(&_pwm, seconds);
gmatarrubia 0:820a69dfd200 116 }
gmatarrubia 0:820a69dfd200 117
gmatarrubia 0:820a69dfd200 118 /** Set the PWM pulsewidth, specified in milli-seconds (int), keeping the period the same.
gmatarrubia 0:820a69dfd200 119 */
gmatarrubia 0:820a69dfd200 120 void pulsewidth_ms(int ms) {
gmatarrubia 0:820a69dfd200 121 pwmout_pulsewidth_ms(&_pwm, ms);
gmatarrubia 0:820a69dfd200 122 }
gmatarrubia 0:820a69dfd200 123
gmatarrubia 0:820a69dfd200 124 /** Set the PWM pulsewidth, specified in micro-seconds (int), keeping the period the same.
gmatarrubia 0:820a69dfd200 125 */
gmatarrubia 0:820a69dfd200 126 void pulsewidth_us(int us) {
gmatarrubia 0:820a69dfd200 127 pwmout_pulsewidth_us(&_pwm, us);
gmatarrubia 0:820a69dfd200 128 }
gmatarrubia 0:820a69dfd200 129
gmatarrubia 0:820a69dfd200 130 #ifdef MBED_OPERATORS
gmatarrubia 0:820a69dfd200 131 /** A operator shorthand for write()
gmatarrubia 0:820a69dfd200 132 */
gmatarrubia 0:820a69dfd200 133 PwmOut& operator= (float value) {
gmatarrubia 0:820a69dfd200 134 write(value);
gmatarrubia 0:820a69dfd200 135 return *this;
gmatarrubia 0:820a69dfd200 136 }
gmatarrubia 0:820a69dfd200 137
gmatarrubia 0:820a69dfd200 138 PwmOut& operator= (PwmOut& rhs) {
gmatarrubia 0:820a69dfd200 139 write(rhs.read());
gmatarrubia 0:820a69dfd200 140 return *this;
gmatarrubia 0:820a69dfd200 141 }
gmatarrubia 0:820a69dfd200 142
gmatarrubia 0:820a69dfd200 143 /** An operator shorthand for read()
gmatarrubia 0:820a69dfd200 144 */
gmatarrubia 0:820a69dfd200 145 operator float() {
gmatarrubia 0:820a69dfd200 146 return read();
gmatarrubia 0:820a69dfd200 147 }
gmatarrubia 0:820a69dfd200 148 #endif
gmatarrubia 0:820a69dfd200 149
gmatarrubia 0:820a69dfd200 150 protected:
gmatarrubia 0:820a69dfd200 151 pwmout_t _pwm;
gmatarrubia 0:820a69dfd200 152 };
gmatarrubia 0:820a69dfd200 153
gmatarrubia 0:820a69dfd200 154 } // namespace mbed
gmatarrubia 0:820a69dfd200 155
gmatarrubia 0:820a69dfd200 156 #endif
gmatarrubia 0:820a69dfd200 157
gmatarrubia 0:820a69dfd200 158 #endif