Alvaro Cassinelli / Mbed 2 deprecated skinGames_II

save loops

Dependencies:   mbed

hardwareIO/adc.h@1:3be7b7d050f4, 2014-12-02 (annotated)

Committer:
mbedalvaro
Date:
Tue Dec 02 08:29:59 2014 +0000
Revision:
1:3be7b7d050f4
Parent:
0:df6fdd9b99f0 
updated

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedalvaro 0:df6fdd9b99f0 1 /* mbed Library - ADC
mbedalvaro 0:df6fdd9b99f0 2 * Copyright (c) 2010, sblandford
mbedalvaro 0:df6fdd9b99f0 3 * released under MIT license http://mbed.org/licence/mit
mbedalvaro 0:df6fdd9b99f0 4 */
mbedalvaro 0:df6fdd9b99f0 5
mbedalvaro 0:df6fdd9b99f0 6 #ifndef MBED_ADC_H
mbedalvaro 0:df6fdd9b99f0 7 #define MBED_ADC_H
mbedalvaro 0:df6fdd9b99f0 8
mbedalvaro 0:df6fdd9b99f0 9 #include "mbed.h"
mbedalvaro 0:df6fdd9b99f0 10
mbedalvaro 0:df6fdd9b99f0 11 #define XTAL_FREQ 12000000
mbedalvaro 0:df6fdd9b99f0 12 #define MAX_ADC_CLOCK 13000000
mbedalvaro 0:df6fdd9b99f0 13 #define CLKS_PER_SAMPLE 64
mbedalvaro 0:df6fdd9b99f0 14
mbedalvaro 0:df6fdd9b99f0 15 #define ADC_SAMPLE_RATE 150000
mbedalvaro 0:df6fdd9b99f0 16
mbedalvaro 0:df6fdd9b99f0 17
mbedalvaro 0:df6fdd9b99f0 18 class ADC {
mbedalvaro 0:df6fdd9b99f0 19 public:
mbedalvaro 0:df6fdd9b99f0 20
mbedalvaro 0:df6fdd9b99f0 21 //Initialize ADC with ADC maximum sample rate of
mbedalvaro 0:df6fdd9b99f0 22 //sample_rate and system clock divider of cclk_div
mbedalvaro 0:df6fdd9b99f0 23 //Maximum recommened sample rate is 184000
mbedalvaro 0:df6fdd9b99f0 24 ADC(int sample_rate, int cclk_div);
mbedalvaro 0:df6fdd9b99f0 25
mbedalvaro 0:df6fdd9b99f0 26 //Enable/disable ADC on pin according to state
mbedalvaro 0:df6fdd9b99f0 27 //and also select/de-select for next conversion
mbedalvaro 0:df6fdd9b99f0 28 void setup(PinName pin, int state);
mbedalvaro 0:df6fdd9b99f0 29
mbedalvaro 0:df6fdd9b99f0 30 //Return enabled/disabled state of ADC on pin
mbedalvaro 0:df6fdd9b99f0 31 int setup(PinName pin);
mbedalvaro 0:df6fdd9b99f0 32
mbedalvaro 0:df6fdd9b99f0 33 //Enable/disable burst mode according to state
mbedalvaro 0:df6fdd9b99f0 34 void burst(int state);
mbedalvaro 0:df6fdd9b99f0 35
mbedalvaro 0:df6fdd9b99f0 36 //Select channel already setup
mbedalvaro 0:df6fdd9b99f0 37 void select(PinName pin);
mbedalvaro 0:df6fdd9b99f0 38
mbedalvaro 0:df6fdd9b99f0 39 //Return burst mode enabled/disabled
mbedalvaro 0:df6fdd9b99f0 40 int burst(void);
mbedalvaro 0:df6fdd9b99f0 41
mbedalvaro 0:df6fdd9b99f0 42 /*Set start condition and edge according to mode:
mbedalvaro 0:df6fdd9b99f0 43 0 - No start (this value should be used when clearing PDN to 0).
mbedalvaro 0:df6fdd9b99f0 44 1 - Start conversion now.
mbedalvaro 0:df6fdd9b99f0 45 2 - Start conversion when the edge selected by bit 27 occurs on the P2.10 / EINT0 / NMI pin.
mbedalvaro 0:df6fdd9b99f0 46 3 - Start conversion when the edge selected by bit 27 occurs on the P1.27 / CLKOUT /
mbedalvaro 0:df6fdd9b99f0 47 USB_OVRCRn / CAP0.1 pin.
mbedalvaro 0:df6fdd9b99f0 48 4 - Start conversion when the edge selected by bit 27 occurs on MAT0.1. Note that this does
mbedalvaro 0:df6fdd9b99f0 49 not require that the MAT0.1 function appear on a device pin.
mbedalvaro 0:df6fdd9b99f0 50 5 - Start conversion when the edge selected by bit 27 occurs on MAT0.3. Note that it is not
mbedalvaro 0:df6fdd9b99f0 51 possible to cause the MAT0.3 function to appear on a device pin.
mbedalvaro 0:df6fdd9b99f0 52 6 - Start conversion when the edge selected by bit 27 occurs on MAT1.0. Note that this does
mbedalvaro 0:df6fdd9b99f0 53 not require that the MAT1.0 function appear on a device pin.
mbedalvaro 0:df6fdd9b99f0 54 7 - Start conversion when the edge selected by bit 27 occurs on MAT1.1. Note that this does
mbedalvaro 0:df6fdd9b99f0 55 not require that the MAT1.1 function appear on a device pin.
mbedalvaro 0:df6fdd9b99f0 56 When mode >= 2, conversion is triggered by edge:
mbedalvaro 0:df6fdd9b99f0 57 0 - Rising edge
mbedalvaro 0:df6fdd9b99f0 58 1 - Falling edge
mbedalvaro 0:df6fdd9b99f0 59 */
mbedalvaro 0:df6fdd9b99f0 60 void startmode(int mode, int edge);
mbedalvaro 0:df6fdd9b99f0 61
mbedalvaro 0:df6fdd9b99f0 62 //Return startmode state according to mode_edge=0: mode and mode_edge=1: edge
mbedalvaro 0:df6fdd9b99f0 63 int startmode(int mode_edge);
mbedalvaro 0:df6fdd9b99f0 64
mbedalvaro 0:df6fdd9b99f0 65 //Start ADC conversion
mbedalvaro 0:df6fdd9b99f0 66 void start(void);
mbedalvaro 0:df6fdd9b99f0 67
mbedalvaro 0:df6fdd9b99f0 68 //Set interrupt enable/disable for pin to state
mbedalvaro 0:df6fdd9b99f0 69 void interrupt_state(PinName pin, int state);
mbedalvaro 0:df6fdd9b99f0 70
mbedalvaro 0:df6fdd9b99f0 71 //Return enable/disable state of interrupt for pin
mbedalvaro 0:df6fdd9b99f0 72 int interrupt_state(PinName pin);
mbedalvaro 0:df6fdd9b99f0 73
mbedalvaro 0:df6fdd9b99f0 74 //Attach custom interrupt handler replacing default
mbedalvaro 0:df6fdd9b99f0 75 void attach(void(*fptr)(void));
mbedalvaro 0:df6fdd9b99f0 76
mbedalvaro 0:df6fdd9b99f0 77 //Restore default interrupt handler
mbedalvaro 0:df6fdd9b99f0 78 void detach(void);
mbedalvaro 0:df6fdd9b99f0 79
mbedalvaro 0:df6fdd9b99f0 80 //Append custom interrupt handler for pin
mbedalvaro 0:df6fdd9b99f0 81 void append(PinName pin, void(*fptr)(uint32_t value));
mbedalvaro 0:df6fdd9b99f0 82
mbedalvaro 0:df6fdd9b99f0 83 //Unappend custom interrupt handler for pin
mbedalvaro 0:df6fdd9b99f0 84 void unappend(PinName pin);
mbedalvaro 0:df6fdd9b99f0 85
mbedalvaro 0:df6fdd9b99f0 86 //Append custom global interrupt handler
mbedalvaro 0:df6fdd9b99f0 87 void append(void(*fptr)(int chan, uint32_t value));
mbedalvaro 0:df6fdd9b99f0 88
mbedalvaro 0:df6fdd9b99f0 89 //Unappend custom global interrupt handler
mbedalvaro 0:df6fdd9b99f0 90 void unappend(void);
mbedalvaro 0:df6fdd9b99f0 91
mbedalvaro 0:df6fdd9b99f0 92 //Set ADC offset to a value 0-7
mbedalvaro 0:df6fdd9b99f0 93 void offset(int offset);
mbedalvaro 0:df6fdd9b99f0 94
mbedalvaro 0:df6fdd9b99f0 95 //Return current ADC offset
mbedalvaro 0:df6fdd9b99f0 96 int offset(void);
mbedalvaro 0:df6fdd9b99f0 97
mbedalvaro 0:df6fdd9b99f0 98 //Return value of ADC on pin
mbedalvaro 0:df6fdd9b99f0 99 int read(PinName pin);
mbedalvaro 0:df6fdd9b99f0 100
mbedalvaro 0:df6fdd9b99f0 101 //Return DONE flag of ADC on pin
mbedalvaro 0:df6fdd9b99f0 102 int done(PinName pin);
mbedalvaro 0:df6fdd9b99f0 103
mbedalvaro 0:df6fdd9b99f0 104 //Return OVERRUN flag of ADC on pin
mbedalvaro 0:df6fdd9b99f0 105 int overrun(PinName pin);
mbedalvaro 0:df6fdd9b99f0 106
mbedalvaro 0:df6fdd9b99f0 107 //Return actual ADC clock
mbedalvaro 0:df6fdd9b99f0 108 int actual_adc_clock(void);
mbedalvaro 0:df6fdd9b99f0 109
mbedalvaro 0:df6fdd9b99f0 110 //Return actual maximum sample rate
mbedalvaro 0:df6fdd9b99f0 111 int actual_sample_rate(void);
mbedalvaro 0:df6fdd9b99f0 112
mbedalvaro 0:df6fdd9b99f0 113 //Return pin ID of ADC channel
mbedalvaro 0:df6fdd9b99f0 114 PinName channel_to_pin(int chan);
mbedalvaro 0:df6fdd9b99f0 115
mbedalvaro 0:df6fdd9b99f0 116 //Return pin number of ADC channel
mbedalvaro 0:df6fdd9b99f0 117 int channel_to_pin_number(int chan);
mbedalvaro 0:df6fdd9b99f0 118
mbedalvaro 0:df6fdd9b99f0 119
mbedalvaro 0:df6fdd9b99f0 120 private:
mbedalvaro 0:df6fdd9b99f0 121 int _pin_to_channel(PinName pin);
mbedalvaro 0:df6fdd9b99f0 122 uint32_t _data_of_pin(PinName pin);
mbedalvaro 0:df6fdd9b99f0 123
mbedalvaro 0:df6fdd9b99f0 124 int _adc_clk_freq;
mbedalvaro 0:df6fdd9b99f0 125 void adcisr(void);
mbedalvaro 0:df6fdd9b99f0 126 static void _adcisr(void);
mbedalvaro 0:df6fdd9b99f0 127 static ADC *instance;
mbedalvaro 0:df6fdd9b99f0 128
mbedalvaro 0:df6fdd9b99f0 129 uint32_t _adc_data[8];
mbedalvaro 0:df6fdd9b99f0 130 void(*_adc_isr[8])(uint32_t value);
mbedalvaro 0:df6fdd9b99f0 131 void(*_adc_g_isr)(int chan, uint32_t value);
mbedalvaro 0:df6fdd9b99f0 132 void(*_adc_m_isr)(void);
mbedalvaro 0:df6fdd9b99f0 133 };
mbedalvaro 0:df6fdd9b99f0 134
mbedalvaro 0:df6fdd9b99f0 135 extern ADC adc;
mbedalvaro 0:df6fdd9b99f0 136
mbedalvaro 0:df6fdd9b99f0 137 #endif