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/AnalogOut.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_ANALOGOUT_H
gmatarrubia 0:820a69dfd200 17 #define MBED_ANALOGOUT_H
gmatarrubia 0:820a69dfd200 18
gmatarrubia 0:820a69dfd200 19 #include "platform.h"
gmatarrubia 0:820a69dfd200 20
gmatarrubia 0:820a69dfd200 21 #if DEVICE_ANALOGOUT
gmatarrubia 0:820a69dfd200 22
gmatarrubia 0:820a69dfd200 23 #include "analogout_api.h"
gmatarrubia 0:820a69dfd200 24
gmatarrubia 0:820a69dfd200 25 namespace mbed {
gmatarrubia 0:820a69dfd200 26
gmatarrubia 0:820a69dfd200 27 /** An analog output, used for setting the voltage on a pin
gmatarrubia 0:820a69dfd200 28 *
gmatarrubia 0:820a69dfd200 29 * Example:
gmatarrubia 0:820a69dfd200 30 * @code
gmatarrubia 0:820a69dfd200 31 * // Make a sawtooth output
gmatarrubia 0:820a69dfd200 32 *
gmatarrubia 0:820a69dfd200 33 * #include "mbed.h"
gmatarrubia 0:820a69dfd200 34 *
gmatarrubia 0:820a69dfd200 35 * AnalogOut tri(p18);
gmatarrubia 0:820a69dfd200 36 * int main() {
gmatarrubia 0:820a69dfd200 37 * while(1) {
gmatarrubia 0:820a69dfd200 38 * tri = tri + 0.01;
gmatarrubia 0:820a69dfd200 39 * wait_us(1);
gmatarrubia 0:820a69dfd200 40 * if(tri == 1) {
gmatarrubia 0:820a69dfd200 41 * tri = 0;
gmatarrubia 0:820a69dfd200 42 * }
gmatarrubia 0:820a69dfd200 43 * }
gmatarrubia 0:820a69dfd200 44 * }
gmatarrubia 0:820a69dfd200 45 * @endcode
gmatarrubia 0:820a69dfd200 46 */
gmatarrubia 0:820a69dfd200 47 class AnalogOut {
gmatarrubia 0:820a69dfd200 48
gmatarrubia 0:820a69dfd200 49 public:
gmatarrubia 0:820a69dfd200 50
gmatarrubia 0:820a69dfd200 51 /** Create an AnalogOut connected to the specified pin
gmatarrubia 0:820a69dfd200 52 *
gmatarrubia 0:820a69dfd200 53 * @param AnalogOut pin to connect to (18)
gmatarrubia 0:820a69dfd200 54 */
gmatarrubia 0:820a69dfd200 55 AnalogOut(PinName pin) {
gmatarrubia 0:820a69dfd200 56 analogout_init(&_dac, pin);
gmatarrubia 0:820a69dfd200 57 }
gmatarrubia 0:820a69dfd200 58
gmatarrubia 0:820a69dfd200 59 /** Set the output voltage, specified as a percentage (float)
gmatarrubia 0:820a69dfd200 60 *
gmatarrubia 0:820a69dfd200 61 * @param value A floating-point value representing the output voltage,
gmatarrubia 0:820a69dfd200 62 * specified as a percentage. The value should lie between
gmatarrubia 0:820a69dfd200 63 * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
gmatarrubia 0:820a69dfd200 64 * Values outside this range will be saturated to 0.0f or 1.0f.
gmatarrubia 0:820a69dfd200 65 */
gmatarrubia 0:820a69dfd200 66 void write(float value) {
gmatarrubia 0:820a69dfd200 67 analogout_write(&_dac, value);
gmatarrubia 0:820a69dfd200 68 }
gmatarrubia 0:820a69dfd200 69
gmatarrubia 0:820a69dfd200 70 /** Set the output voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
gmatarrubia 0:820a69dfd200 71 *
gmatarrubia 0:820a69dfd200 72 * @param value 16-bit unsigned short representing the output voltage,
gmatarrubia 0:820a69dfd200 73 * normalised to a 16-bit value (0x0000 = 0v, 0xFFFF = 3.3v)
gmatarrubia 0:820a69dfd200 74 */
gmatarrubia 0:820a69dfd200 75 void write_u16(unsigned short value) {
gmatarrubia 0:820a69dfd200 76 analogout_write_u16(&_dac, value);
gmatarrubia 0:820a69dfd200 77 }
gmatarrubia 0:820a69dfd200 78
gmatarrubia 0:820a69dfd200 79 /** Return the current output voltage setting, measured as a percentage (float)
gmatarrubia 0:820a69dfd200 80 *
gmatarrubia 0:820a69dfd200 81 * @returns
gmatarrubia 0:820a69dfd200 82 * A floating-point value representing the current voltage being output on the pin,
gmatarrubia 0:820a69dfd200 83 * measured as a percentage. The returned value will lie between
gmatarrubia 0:820a69dfd200 84 * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
gmatarrubia 0:820a69dfd200 85 *
gmatarrubia 0:820a69dfd200 86 * @note
gmatarrubia 0:820a69dfd200 87 * This value may not match exactly the value set by a previous write().
gmatarrubia 0:820a69dfd200 88 */
gmatarrubia 0:820a69dfd200 89 float read() {
gmatarrubia 0:820a69dfd200 90 return analogout_read(&_dac);
gmatarrubia 0:820a69dfd200 91 }
gmatarrubia 0:820a69dfd200 92
gmatarrubia 0:820a69dfd200 93 #ifdef MBED_OPERATORS
gmatarrubia 0:820a69dfd200 94 /** An operator shorthand for write()
gmatarrubia 0:820a69dfd200 95 */
gmatarrubia 0:820a69dfd200 96 AnalogOut& operator= (float percent) {
gmatarrubia 0:820a69dfd200 97 write(percent);
gmatarrubia 0:820a69dfd200 98 return *this;
gmatarrubia 0:820a69dfd200 99 }
gmatarrubia 0:820a69dfd200 100
gmatarrubia 0:820a69dfd200 101 AnalogOut& operator= (AnalogOut& rhs) {
gmatarrubia 0:820a69dfd200 102 write(rhs.read());
gmatarrubia 0:820a69dfd200 103 return *this;
gmatarrubia 0:820a69dfd200 104 }
gmatarrubia 0:820a69dfd200 105
gmatarrubia 0:820a69dfd200 106 /** An operator shorthand for read()
gmatarrubia 0:820a69dfd200 107 */
gmatarrubia 0:820a69dfd200 108 operator float() {
gmatarrubia 0:820a69dfd200 109 return read();
gmatarrubia 0:820a69dfd200 110 }
gmatarrubia 0:820a69dfd200 111 #endif
gmatarrubia 0:820a69dfd200 112
gmatarrubia 0:820a69dfd200 113 protected:
gmatarrubia 0:820a69dfd200 114 dac_t _dac;
gmatarrubia 0:820a69dfd200 115 };
gmatarrubia 0:820a69dfd200 116
gmatarrubia 0:820a69dfd200 117 } // namespace mbed
gmatarrubia 0:820a69dfd200 118
gmatarrubia 0:820a69dfd200 119 #endif
gmatarrubia 0:820a69dfd200 120
gmatarrubia 0:820a69dfd200 121 #endif