Kevin Braun / Mbed 2 deprecated TFTdisp-104

A general demonstration color etch-a-sketch program using the QVGA TFT with HX8347D controller, Orange Board. Saves touchscreen calibaration data saved in tft.ini. Creates /local/tft.ini if missing. Also included is an Ethernet NTP client to update the RTC. Assumes all other Orange Board devices attached: Text LCD, SDHC Flash, Ethernet.

Dependencies:   EthernetNetIf TextLCD mbed

mbedADC/adc.h@0:e065ca40f28a, 2011-08-01 (annotated)

Committer:
loopsva
Date:
Mon Aug 01 16:29:58 2011 +0000
Revision:
0:e065ca40f28a
Inititial Release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
loopsva 0:e065ca40f28a 1 /* mbed Library - ADC
loopsva 0:e065ca40f28a 2 * Copyright (c) 2010, sblandford
loopsva 0:e065ca40f28a 3 * released under MIT license http://mbed.org/licence/mit
loopsva 0:e065ca40f28a 4 */
loopsva 0:e065ca40f28a 5
loopsva 0:e065ca40f28a 6 #ifndef MBED_ADC_H
loopsva 0:e065ca40f28a 7 #define MBED_ADC_H
loopsva 0:e065ca40f28a 8
loopsva 0:e065ca40f28a 9 #include "mbed.h"
loopsva 0:e065ca40f28a 10 #define XTAL_FREQ 12000000
loopsva 0:e065ca40f28a 11 #define MAX_ADC_CLOCK 13000000
loopsva 0:e065ca40f28a 12 #define CLKS_PER_SAMPLE 64
loopsva 0:e065ca40f28a 13
loopsva 0:e065ca40f28a 14 class ADC {
loopsva 0:e065ca40f28a 15 public:
loopsva 0:e065ca40f28a 16
loopsva 0:e065ca40f28a 17 //Initialize ADC with ADC maximum sample rate of
loopsva 0:e065ca40f28a 18 //sample_rate and system clock divider of cclk_div
loopsva 0:e065ca40f28a 19 //Maximum recommened sample rate is 184000
loopsva 0:e065ca40f28a 20 ADC(int sample_rate, int cclk_div);
loopsva 0:e065ca40f28a 21
loopsva 0:e065ca40f28a 22 //Enable/disable ADC on pin according to state
loopsva 0:e065ca40f28a 23 //and also select/de-select for next conversion
loopsva 0:e065ca40f28a 24 void setup(PinName pin, int state);
loopsva 0:e065ca40f28a 25
loopsva 0:e065ca40f28a 26 //Return enabled/disabled state of ADC on pin
loopsva 0:e065ca40f28a 27 int setup(PinName pin);
loopsva 0:e065ca40f28a 28
loopsva 0:e065ca40f28a 29 //Enable/disable burst mode according to state
loopsva 0:e065ca40f28a 30 void burst(int state);
loopsva 0:e065ca40f28a 31
loopsva 0:e065ca40f28a 32 //Select channel already setup
loopsva 0:e065ca40f28a 33 void select(PinName pin);
loopsva 0:e065ca40f28a 34
loopsva 0:e065ca40f28a 35 //Return burst mode enabled/disabled
loopsva 0:e065ca40f28a 36 int burst(void);
loopsva 0:e065ca40f28a 37
loopsva 0:e065ca40f28a 38 /*Set start condition and edge according to mode:
loopsva 0:e065ca40f28a 39 0 - No start (this value should be used when clearing PDN to 0).
loopsva 0:e065ca40f28a 40 1 - Start conversion now.
loopsva 0:e065ca40f28a 41 2 - Start conversion when the edge selected by bit 27 occurs on the P2.10 / EINT0 / NMI pin.
loopsva 0:e065ca40f28a 42 3 - Start conversion when the edge selected by bit 27 occurs on the P1.27 / CLKOUT /
loopsva 0:e065ca40f28a 43 USB_OVRCRn / CAP0.1 pin.
loopsva 0:e065ca40f28a 44 4 - Start conversion when the edge selected by bit 27 occurs on MAT0.1. Note that this does
loopsva 0:e065ca40f28a 45 not require that the MAT0.1 function appear on a device pin.
loopsva 0:e065ca40f28a 46 5 - Start conversion when the edge selected by bit 27 occurs on MAT0.3. Note that it is not
loopsva 0:e065ca40f28a 47 possible to cause the MAT0.3 function to appear on a device pin.
loopsva 0:e065ca40f28a 48 6 - Start conversion when the edge selected by bit 27 occurs on MAT1.0. Note that this does
loopsva 0:e065ca40f28a 49 not require that the MAT1.0 function appear on a device pin.
loopsva 0:e065ca40f28a 50 7 - Start conversion when the edge selected by bit 27 occurs on MAT1.1. Note that this does
loopsva 0:e065ca40f28a 51 not require that the MAT1.1 function appear on a device pin.
loopsva 0:e065ca40f28a 52 When mode >= 2, conversion is triggered by edge:
loopsva 0:e065ca40f28a 53 0 - Rising edge
loopsva 0:e065ca40f28a 54 1 - Falling edge
loopsva 0:e065ca40f28a 55 */
loopsva 0:e065ca40f28a 56 void startmode(int mode, int edge);
loopsva 0:e065ca40f28a 57
loopsva 0:e065ca40f28a 58 //Return startmode state according to mode_edge=0: mode and mode_edge=1: edge
loopsva 0:e065ca40f28a 59 int startmode(int mode_edge);
loopsva 0:e065ca40f28a 60
loopsva 0:e065ca40f28a 61 //Start ADC conversion
loopsva 0:e065ca40f28a 62 void start(void);
loopsva 0:e065ca40f28a 63
loopsva 0:e065ca40f28a 64 //Set interrupt enable/disable for pin to state
loopsva 0:e065ca40f28a 65 void interrupt_state(PinName pin, int state);
loopsva 0:e065ca40f28a 66
loopsva 0:e065ca40f28a 67 //Return enable/disable state of interrupt for pin
loopsva 0:e065ca40f28a 68 int interrupt_state(PinName pin);
loopsva 0:e065ca40f28a 69
loopsva 0:e065ca40f28a 70 //Attach custom interrupt handler replacing default
loopsva 0:e065ca40f28a 71 void attach(void(*fptr)(void));
loopsva 0:e065ca40f28a 72
loopsva 0:e065ca40f28a 73 //Restore default interrupt handler
loopsva 0:e065ca40f28a 74 void detach(void);
loopsva 0:e065ca40f28a 75
loopsva 0:e065ca40f28a 76 //Append custom interrupt handler for pin
loopsva 0:e065ca40f28a 77 void append(PinName pin, void(*fptr)(uint32_t value));
loopsva 0:e065ca40f28a 78
loopsva 0:e065ca40f28a 79 //Unappend custom interrupt handler for pin
loopsva 0:e065ca40f28a 80 void unappend(PinName pin);
loopsva 0:e065ca40f28a 81
loopsva 0:e065ca40f28a 82 //Append custom global interrupt handler
loopsva 0:e065ca40f28a 83 void append(void(*fptr)(int chan, uint32_t value));
loopsva 0:e065ca40f28a 84
loopsva 0:e065ca40f28a 85 //Unappend custom global interrupt handler
loopsva 0:e065ca40f28a 86 void unappend(void);
loopsva 0:e065ca40f28a 87
loopsva 0:e065ca40f28a 88 //Set ADC offset to a value 0-7
loopsva 0:e065ca40f28a 89 void offset(int offset);
loopsva 0:e065ca40f28a 90
loopsva 0:e065ca40f28a 91 //Return current ADC offset
loopsva 0:e065ca40f28a 92 int offset(void);
loopsva 0:e065ca40f28a 93
loopsva 0:e065ca40f28a 94 //Return value of ADC on pin
loopsva 0:e065ca40f28a 95 int read(PinName pin);
loopsva 0:e065ca40f28a 96
loopsva 0:e065ca40f28a 97 //Return DONE flag of ADC on pin
loopsva 0:e065ca40f28a 98 int done(PinName pin);
loopsva 0:e065ca40f28a 99
loopsva 0:e065ca40f28a 100 //Return OVERRUN flag of ADC on pin
loopsva 0:e065ca40f28a 101 int overrun(PinName pin);
loopsva 0:e065ca40f28a 102
loopsva 0:e065ca40f28a 103 //Return actual ADC clock
loopsva 0:e065ca40f28a 104 int actual_adc_clock(void);
loopsva 0:e065ca40f28a 105
loopsva 0:e065ca40f28a 106 //Return actual maximum sample rate
loopsva 0:e065ca40f28a 107 int actual_sample_rate(void);
loopsva 0:e065ca40f28a 108
loopsva 0:e065ca40f28a 109 //Return pin ID of ADC channel
loopsva 0:e065ca40f28a 110 PinName channel_to_pin(int chan);
loopsva 0:e065ca40f28a 111
loopsva 0:e065ca40f28a 112 //Return pin number of ADC channel
loopsva 0:e065ca40f28a 113 int channel_to_pin_number(int chan);
loopsva 0:e065ca40f28a 114
loopsva 0:e065ca40f28a 115
loopsva 0:e065ca40f28a 116 private:
loopsva 0:e065ca40f28a 117 int _pin_to_channel(PinName pin);
loopsva 0:e065ca40f28a 118 uint32_t _data_of_pin(PinName pin);
loopsva 0:e065ca40f28a 119
loopsva 0:e065ca40f28a 120 int _adc_clk_freq;
loopsva 0:e065ca40f28a 121 void adcisr(void);
loopsva 0:e065ca40f28a 122 static void _adcisr(void);
loopsva 0:e065ca40f28a 123 static ADC *instance;
loopsva 0:e065ca40f28a 124
loopsva 0:e065ca40f28a 125 uint32_t _adc_data[8];
loopsva 0:e065ca40f28a 126 void(*_adc_isr[8])(uint32_t value);
loopsva 0:e065ca40f28a 127 void(*_adc_g_isr)(int chan, uint32_t value);
loopsva 0:e065ca40f28a 128 void(*_adc_m_isr)(void);
loopsva 0:e065ca40f28a 129 };
loopsva 0:e065ca40f28a 130
loopsva 0:e065ca40f28a 131 #endif