CRAC Team / Utilisatio_MX12_V3

Programme d'utilisation des AX12 et de l'MX12 V3

Fork of Utilisatio_MX12_V2 by CRAC Team

mbed/AnalogOut.h@4:0972025782f3, 2017-05-20 (annotated)

Committer:
R66Y
Date:
Sat May 20 16:16:00 2017 +0000
Revision:
4:0972025782f3
Parent:
1:f3f702086a30 
Programme d'utilisation des AX et de l'MX12 V3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ClementBreteau 1:f3f702086a30 1 /* mbed Microcontroller Library - AnalogOut
ClementBreteau 1:f3f702086a30 2 * Copyright (c) 2006-2011 ARM Limited. All rights reserved.
ClementBreteau 1:f3f702086a30 3 */
ClementBreteau 1:f3f702086a30 4
ClementBreteau 1:f3f702086a30 5 #ifndef MBED_ANALOGOUT_H
ClementBreteau 1:f3f702086a30 6 #define MBED_ANALOGOUT_H
ClementBreteau 1:f3f702086a30 7
ClementBreteau 1:f3f702086a30 8 #include "device.h"
ClementBreteau 1:f3f702086a30 9
ClementBreteau 1:f3f702086a30 10 #if DEVICE_ANALOGOUT
ClementBreteau 1:f3f702086a30 11
ClementBreteau 1:f3f702086a30 12 #include "platform.h"
ClementBreteau 1:f3f702086a30 13 #include "PinNames.h"
ClementBreteau 1:f3f702086a30 14 #include "PeripheralNames.h"
ClementBreteau 1:f3f702086a30 15 #include "Base.h"
ClementBreteau 1:f3f702086a30 16
ClementBreteau 1:f3f702086a30 17 namespace mbed {
ClementBreteau 1:f3f702086a30 18
ClementBreteau 1:f3f702086a30 19 /* Class: AnalogOut
ClementBreteau 1:f3f702086a30 20 * An analog output, used for setting the voltage on a pin
ClementBreteau 1:f3f702086a30 21 *
ClementBreteau 1:f3f702086a30 22 * Example:
ClementBreteau 1:f3f702086a30 23 * > // Make a sawtooth output
ClementBreteau 1:f3f702086a30 24 * >
ClementBreteau 1:f3f702086a30 25 * > #include "mbed.h"
ClementBreteau 1:f3f702086a30 26 * >
ClementBreteau 1:f3f702086a30 27 * > AnalogOut tri(p18);
ClementBreteau 1:f3f702086a30 28 * > int main() {
ClementBreteau 1:f3f702086a30 29 * > while(1) {
ClementBreteau 1:f3f702086a30 30 * > tri = tri + 0.01;
ClementBreteau 1:f3f702086a30 31 * > wait_us(1);
ClementBreteau 1:f3f702086a30 32 * > if(tri == 1) {
ClementBreteau 1:f3f702086a30 33 * > tri = 0;
ClementBreteau 1:f3f702086a30 34 * > }
ClementBreteau 1:f3f702086a30 35 * > }
ClementBreteau 1:f3f702086a30 36 * > }
ClementBreteau 1:f3f702086a30 37 */
ClementBreteau 1:f3f702086a30 38 class AnalogOut : public Base {
ClementBreteau 1:f3f702086a30 39
ClementBreteau 1:f3f702086a30 40 public:
ClementBreteau 1:f3f702086a30 41
ClementBreteau 1:f3f702086a30 42 /* Constructor: AnalogOut
ClementBreteau 1:f3f702086a30 43 * Create an AnalogOut connected to the specified pin
ClementBreteau 1:f3f702086a30 44 *
ClementBreteau 1:f3f702086a30 45 * Variables:
ClementBreteau 1:f3f702086a30 46 * pin - AnalogOut pin to connect to (18)
ClementBreteau 1:f3f702086a30 47 */
ClementBreteau 1:f3f702086a30 48 AnalogOut(PinName pin, const char *name = NULL);
ClementBreteau 1:f3f702086a30 49
ClementBreteau 1:f3f702086a30 50 /* Function: write
ClementBreteau 1:f3f702086a30 51 * Set the output voltage, specified as a percentage (float)
ClementBreteau 1:f3f702086a30 52 *
ClementBreteau 1:f3f702086a30 53 * Variables:
ClementBreteau 1:f3f702086a30 54 * percent - A floating-point value representing the output voltage,
ClementBreteau 1:f3f702086a30 55 * specified as a percentage. The value should lie between
ClementBreteau 1:f3f702086a30 56 * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
ClementBreteau 1:f3f702086a30 57 * Values outside this range will be saturated to 0.0f or 1.0f.
ClementBreteau 1:f3f702086a30 58 */
ClementBreteau 1:f3f702086a30 59 void write(float value);
ClementBreteau 1:f3f702086a30 60
ClementBreteau 1:f3f702086a30 61 /* Function: write_u16
ClementBreteau 1:f3f702086a30 62 * Set the output voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
ClementBreteau 1:f3f702086a30 63 *
ClementBreteau 1:f3f702086a30 64 * Variables:
ClementBreteau 1:f3f702086a30 65 * value - 16-bit unsigned short representing the output voltage,
ClementBreteau 1:f3f702086a30 66 * normalised to a 16-bit value (0x0000 = 0v, 0xFFFF = 3.3v)
ClementBreteau 1:f3f702086a30 67 */
ClementBreteau 1:f3f702086a30 68 void write_u16(unsigned short value);
ClementBreteau 1:f3f702086a30 69
ClementBreteau 1:f3f702086a30 70 /* Function: read
ClementBreteau 1:f3f702086a30 71 * Return the current output voltage setting, measured as a percentage (float)
ClementBreteau 1:f3f702086a30 72 *
ClementBreteau 1:f3f702086a30 73 * Variables:
ClementBreteau 1:f3f702086a30 74 * returns - A floating-point value representing the current voltage being output on the pin,
ClementBreteau 1:f3f702086a30 75 * measured as a percentage. The returned value will lie between
ClementBreteau 1:f3f702086a30 76 * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
ClementBreteau 1:f3f702086a30 77 *
ClementBreteau 1:f3f702086a30 78 * Note:
ClementBreteau 1:f3f702086a30 79 * This value may not match exactly the value set by a previous <write>.
ClementBreteau 1:f3f702086a30 80 */
ClementBreteau 1:f3f702086a30 81 float read();
ClementBreteau 1:f3f702086a30 82
ClementBreteau 1:f3f702086a30 83
ClementBreteau 1:f3f702086a30 84 #ifdef MBED_OPERATORS
ClementBreteau 1:f3f702086a30 85 /* Function: operator=
ClementBreteau 1:f3f702086a30 86 * An operator shorthand for <write()>
ClementBreteau 1:f3f702086a30 87 */
ClementBreteau 1:f3f702086a30 88 AnalogOut& operator= (float percent);
ClementBreteau 1:f3f702086a30 89 AnalogOut& operator= (AnalogOut& rhs);
ClementBreteau 1:f3f702086a30 90
ClementBreteau 1:f3f702086a30 91 /* Function: operator float()
ClementBreteau 1:f3f702086a30 92 * An operator shorthand for <read()>
ClementBreteau 1:f3f702086a30 93 */
ClementBreteau 1:f3f702086a30 94 operator float();
ClementBreteau 1:f3f702086a30 95 #endif
ClementBreteau 1:f3f702086a30 96
ClementBreteau 1:f3f702086a30 97 #ifdef MBED_RPC
ClementBreteau 1:f3f702086a30 98 virtual const struct rpc_method *get_rpc_methods();
ClementBreteau 1:f3f702086a30 99 static struct rpc_class *get_rpc_class();
ClementBreteau 1:f3f702086a30 100 #endif
ClementBreteau 1:f3f702086a30 101
ClementBreteau 1:f3f702086a30 102 protected:
ClementBreteau 1:f3f702086a30 103
ClementBreteau 1:f3f702086a30 104 DACName _dac;
ClementBreteau 1:f3f702086a30 105
ClementBreteau 1:f3f702086a30 106 };
ClementBreteau 1:f3f702086a30 107
ClementBreteau 1:f3f702086a30 108 } // namespace mbed
ClementBreteau 1:f3f702086a30 109
ClementBreteau 1:f3f702086a30 110 #endif
ClementBreteau 1:f3f702086a30 111
ClementBreteau 1:f3f702086a30 112 #endif