Zainul Charbiwala / Mbed 2 deprecated ECGAFE_copy

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Dependencies:   DS1307 MAX17048 MODSERIAL SSD1308_128x64_I2C WatchDog mbed-rpc mbed

Fork of ECGAFE_copy by Zainul Charbiwala

ADS1298.h@0:ee0649a9025a, 2015-09-30 (annotated)

Committer:
zainulcharbiwala
Date:
Wed Sep 30 11:30:56 2015 +0000
Revision:
0:ee0649a9025a
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zainulcharbiwala 0:ee0649a9025a 1 // Copyright 2013, Zainul Charbiwala
zainulcharbiwala 0:ee0649a9025a 2
zainulcharbiwala 0:ee0649a9025a 3 #ifndef _ADS1298_h_
zainulcharbiwala 0:ee0649a9025a 4 #define _ADS1298_h_
zainulcharbiwala 0:ee0649a9025a 5
zainulcharbiwala 0:ee0649a9025a 6 #include "mbed.h"
zainulcharbiwala 0:ee0649a9025a 7
zainulcharbiwala 0:ee0649a9025a 8 #define TCSSC 1 // 6 ns
zainulcharbiwala 0:ee0649a9025a 9 #define TSCCS 2 // 4 TCLKs
zainulcharbiwala 0:ee0649a9025a 10 #define TPOR 32768 // 2^16 TCLKs
zainulcharbiwala 0:ee0649a9025a 11 #define TRST 1 // 2 TCLKs
zainulcharbiwala 0:ee0649a9025a 12 #define TRST2 9 // 18 TCLKs
zainulcharbiwala 0:ee0649a9025a 13 #define TINTREF 150000 // 150ms
zainulcharbiwala 0:ee0649a9025a 14 #define TCMD 2 // 4 TCLKs
zainulcharbiwala 0:ee0649a9025a 15 #define TCSH 1 // 2 TCLKs
zainulcharbiwala 0:ee0649a9025a 16
zainulcharbiwala 0:ee0649a9025a 17 #define RDATA 0x12
zainulcharbiwala 0:ee0649a9025a 18 #define RDATAC 0x10
zainulcharbiwala 0:ee0649a9025a 19 #define SDATAC 0x11
zainulcharbiwala 0:ee0649a9025a 20 #define WREG 0x40
zainulcharbiwala 0:ee0649a9025a 21 #define RREG 0x20
zainulcharbiwala 0:ee0649a9025a 22
zainulcharbiwala 0:ee0649a9025a 23 #define ID 0x00
zainulcharbiwala 0:ee0649a9025a 24 #define CONFIG1 0x01
zainulcharbiwala 0:ee0649a9025a 25 #define CONFIG2 0x02
zainulcharbiwala 0:ee0649a9025a 26 #define CONFIG3 0x03
zainulcharbiwala 0:ee0649a9025a 27 #define LOFF 0x04
zainulcharbiwala 0:ee0649a9025a 28 #define CH1SET 0x05
zainulcharbiwala 0:ee0649a9025a 29 #define CH2SET 0x06
zainulcharbiwala 0:ee0649a9025a 30 #define CH3SET 0x07
zainulcharbiwala 0:ee0649a9025a 31 #define CH4SET 0x08
zainulcharbiwala 0:ee0649a9025a 32 #define CH5SET 0x09
zainulcharbiwala 0:ee0649a9025a 33 #define CH6SET 0x0A
zainulcharbiwala 0:ee0649a9025a 34 #define CH7SET 0x0B
zainulcharbiwala 0:ee0649a9025a 35 #define CH8SET 0x0C
zainulcharbiwala 0:ee0649a9025a 36 #define RLD_SENSP 0x0D
zainulcharbiwala 0:ee0649a9025a 37 #define RLD_SENSN 0x0E
zainulcharbiwala 0:ee0649a9025a 38 #define LOFF_SENSP 0x0F
zainulcharbiwala 0:ee0649a9025a 39 #define LOFF_SENSN 0x10
zainulcharbiwala 0:ee0649a9025a 40 #define LOFF_FLIP 0x11
zainulcharbiwala 0:ee0649a9025a 41 #define LOFF_STATP 0x12
zainulcharbiwala 0:ee0649a9025a 42 #define LOFF_STATN 0x13
zainulcharbiwala 0:ee0649a9025a 43 #define GPIO 0x14
zainulcharbiwala 0:ee0649a9025a 44 #define PACE 0x15
zainulcharbiwala 0:ee0649a9025a 45 #define RESP 0x16
zainulcharbiwala 0:ee0649a9025a 46 #define CONFIG4 0x17
zainulcharbiwala 0:ee0649a9025a 47 #define WCT1 0x18
zainulcharbiwala 0:ee0649a9025a 48 #define WCT2 0x19
zainulcharbiwala 0:ee0649a9025a 49
zainulcharbiwala 0:ee0649a9025a 50
zainulcharbiwala 0:ee0649a9025a 51 #define CONFIG1_HR 0x80
zainulcharbiwala 0:ee0649a9025a 52 #define CONFIG1_DAISYEN 0x40
zainulcharbiwala 0:ee0649a9025a 53 #define CONFIG1_CLKEN 0x20
zainulcharbiwala 0:ee0649a9025a 54 #define CONFIG1_DR2 0x04
zainulcharbiwala 0:ee0649a9025a 55 #define CONFIG1_DR1 0x02
zainulcharbiwala 0:ee0649a9025a 56 #define CONFIG1_DR0 0x01
zainulcharbiwala 0:ee0649a9025a 57
zainulcharbiwala 0:ee0649a9025a 58 #define CONFIG2_WCTCHOP 0x20
zainulcharbiwala 0:ee0649a9025a 59 #define CONFIG2_INTTEST 0x10
zainulcharbiwala 0:ee0649a9025a 60 #define CONFIG2_TESTAMP 0x04
zainulcharbiwala 0:ee0649a9025a 61 #define CONFIG2_TESTFREQ1 0x02
zainulcharbiwala 0:ee0649a9025a 62 #define CONFIG2_TESTFREQ0 0x01
zainulcharbiwala 0:ee0649a9025a 63 #define CONFIG2_DEFAULT 0x00
zainulcharbiwala 0:ee0649a9025a 64
zainulcharbiwala 0:ee0649a9025a 65 #define CONFIG3_PD_REFBUF 0x80
zainulcharbiwala 0:ee0649a9025a 66 #define CONFIG3_VREF_4V 0x20
zainulcharbiwala 0:ee0649a9025a 67 #define CONFIG3_RLD_MEAS 0x10
zainulcharbiwala 0:ee0649a9025a 68 #define CONFIG3_RLDREF_INT 0x08
zainulcharbiwala 0:ee0649a9025a 69 #define CONFIG3_PD_RLD 0x04
zainulcharbiwala 0:ee0649a9025a 70 #define CONFIG3_RLD_LOFF_SENS 0x02
zainulcharbiwala 0:ee0649a9025a 71 #define CONFIG3_RLD_STAT 0x01
zainulcharbiwala 0:ee0649a9025a 72 #define CONFIG3_DEFAULT 0x40
zainulcharbiwala 0:ee0649a9025a 73
zainulcharbiwala 0:ee0649a9025a 74 #define LOFF_COMP_TH2 0x80
zainulcharbiwala 0:ee0649a9025a 75 #define LOFF_COMP_TH1 0x40
zainulcharbiwala 0:ee0649a9025a 76 #define LOFF_COMP_TH0 0x20
zainulcharbiwala 0:ee0649a9025a 77 #define LOFF_VLEAD_OFF_EN 0x10
zainulcharbiwala 0:ee0649a9025a 78 #define LOFF_ILEAD_OFF1 0x08
zainulcharbiwala 0:ee0649a9025a 79 #define LOFF_ILEAD_OFF0 0x04
zainulcharbiwala 0:ee0649a9025a 80 #define LOFF_FLEAD_OFF1 0x02
zainulcharbiwala 0:ee0649a9025a 81 #define LOFF_FLEAD_OFF0 0x01
zainulcharbiwala 0:ee0649a9025a 82
zainulcharbiwala 0:ee0649a9025a 83 #define CHNSET_PD 0x80
zainulcharbiwala 0:ee0649a9025a 84 #define CHNSET_GAIN2 0x40
zainulcharbiwala 0:ee0649a9025a 85 #define CHNSET_GAIN1 0x20
zainulcharbiwala 0:ee0649a9025a 86 #define CHNSET_GAIN0 0x10
zainulcharbiwala 0:ee0649a9025a 87 #define CHNSET_MUXN2 0x04
zainulcharbiwala 0:ee0649a9025a 88 #define CHNSET_MUXN1 0x02
zainulcharbiwala 0:ee0649a9025a 89 #define CHNSET_MUXN0 0x01
zainulcharbiwala 0:ee0649a9025a 90 #define CHNSET_DEFAULT 0x00
zainulcharbiwala 0:ee0649a9025a 91
zainulcharbiwala 0:ee0649a9025a 92 #define GPIO_GPIOD4 0x80
zainulcharbiwala 0:ee0649a9025a 93 #define GPIO_GPIOD3 0x40
zainulcharbiwala 0:ee0649a9025a 94 #define GPIO_GPIOD2 0x20
zainulcharbiwala 0:ee0649a9025a 95 #define GPIO_GPIOD1 0x10
zainulcharbiwala 0:ee0649a9025a 96 #define GPIO_GPIOC4 0x08
zainulcharbiwala 0:ee0649a9025a 97 #define GPIO_GPIOC3 0x04
zainulcharbiwala 0:ee0649a9025a 98 #define GPIO_GPIOC2 0x02
zainulcharbiwala 0:ee0649a9025a 99 #define GPIO_GPIOC1 0x01
zainulcharbiwala 0:ee0649a9025a 100
zainulcharbiwala 0:ee0649a9025a 101 #define PACE_PACEE1 0x10
zainulcharbiwala 0:ee0649a9025a 102 #define PACE_PACEE0 0x08
zainulcharbiwala 0:ee0649a9025a 103 #define PACE_PACEO1 0x04
zainulcharbiwala 0:ee0649a9025a 104 #define PACE_PACEO0 0x02
zainulcharbiwala 0:ee0649a9025a 105 #define PACE_PD_PACE 0x01
zainulcharbiwala 0:ee0649a9025a 106
zainulcharbiwala 0:ee0649a9025a 107 #define RESP_DEMOD_EN1 0x80
zainulcharbiwala 0:ee0649a9025a 108 #define RESP_MOD_EN1 0x40
zainulcharbiwala 0:ee0649a9025a 109 #define RESP_DEFAULT 0x20
zainulcharbiwala 0:ee0649a9025a 110 #define RESP_PH2 0x10
zainulcharbiwala 0:ee0649a9025a 111 #define RESP_PH1 0x08
zainulcharbiwala 0:ee0649a9025a 112 #define RESP_PH0 0x04
zainulcharbiwala 0:ee0649a9025a 113 #define RESP_CTRL1 0x02
zainulcharbiwala 0:ee0649a9025a 114 #define RESP_CTRL0 0x01
zainulcharbiwala 0:ee0649a9025a 115
zainulcharbiwala 0:ee0649a9025a 116 #define CONFIG4_RESP_FREQ2 0x80
zainulcharbiwala 0:ee0649a9025a 117 #define CONFIG4_RESP_FREQ1 0x40
zainulcharbiwala 0:ee0649a9025a 118 #define CONFIG4_RESP_FREQ0 0x20
zainulcharbiwala 0:ee0649a9025a 119 #define CONFIG4_SINGLE_SHOT 0x08
zainulcharbiwala 0:ee0649a9025a 120 #define CONFIG4_WCT_TO_RLD 0x04
zainulcharbiwala 0:ee0649a9025a 121 #define CONFIG4_PD_LOFF_COMP 0x02
zainulcharbiwala 0:ee0649a9025a 122
zainulcharbiwala 0:ee0649a9025a 123 #define WCT1_AVF_CH6 0x80
zainulcharbiwala 0:ee0649a9025a 124 #define WCT1_AVL_CH5 0x40
zainulcharbiwala 0:ee0649a9025a 125 #define WCT1_AVR_CH7 0x20
zainulcharbiwala 0:ee0649a9025a 126 #define WCT1_AVR_CH4 0x10
zainulcharbiwala 0:ee0649a9025a 127 #define WCT1_PD_WCTA 0x08
zainulcharbiwala 0:ee0649a9025a 128 #define WCT1_WCTA2 0x04
zainulcharbiwala 0:ee0649a9025a 129 #define WCT1_WCTA1 0x02
zainulcharbiwala 0:ee0649a9025a 130 #define WCT1_WCTA0 0x01
zainulcharbiwala 0:ee0649a9025a 131
zainulcharbiwala 0:ee0649a9025a 132 #define WCT2_PD_WCTC 0x80
zainulcharbiwala 0:ee0649a9025a 133 #define WCT2_PD_WCTB 0x40
zainulcharbiwala 0:ee0649a9025a 134 #define WCT2_WCTB2 0x20
zainulcharbiwala 0:ee0649a9025a 135 #define WCT2_WCTB1 0x10
zainulcharbiwala 0:ee0649a9025a 136 #define WCT2_WCTB0 0x08
zainulcharbiwala 0:ee0649a9025a 137 #define WCT2_WCTC2 0x04
zainulcharbiwala 0:ee0649a9025a 138 #define WCT2_WCTC1 0x02
zainulcharbiwala 0:ee0649a9025a 139 #define WCT2_WCTC0 0x01
zainulcharbiwala 0:ee0649a9025a 140
zainulcharbiwala 0:ee0649a9025a 141 // Bit positions of the lead off status bits
zainulcharbiwala 0:ee0649a9025a 142 #define LOFFRA 15
zainulcharbiwala 0:ee0649a9025a 143 #define LOFFLA 14
zainulcharbiwala 0:ee0649a9025a 144 #define LOFFLL 13
zainulcharbiwala 0:ee0649a9025a 145 #define LOFFRL 12
zainulcharbiwala 0:ee0649a9025a 146 #define LOFFV1 11
zainulcharbiwala 0:ee0649a9025a 147 #define LOFFV2 10
zainulcharbiwala 0:ee0649a9025a 148 #define LOFFV3 9
zainulcharbiwala 0:ee0649a9025a 149 #define LOFFV4 8
zainulcharbiwala 0:ee0649a9025a 150 #define LOFFV5 7
zainulcharbiwala 0:ee0649a9025a 151 #define LOFFV6 6
zainulcharbiwala 0:ee0649a9025a 152
zainulcharbiwala 0:ee0649a9025a 153 /** Class to control an ADS1298 AFE
zainulcharbiwala 0:ee0649a9025a 154 *
zainulcharbiwala 0:ee0649a9025a 155 * Example:
zainulcharbiwala 0:ee0649a9025a 156 * @code
zainulcharbiwala 0:ee0649a9025a 157 *
zainulcharbiwala 0:ee0649a9025a 158 * @endcode
zainulcharbiwala 0:ee0649a9025a 159 */
zainulcharbiwala 0:ee0649a9025a 160 class ADS1298 {
zainulcharbiwala 0:ee0649a9025a 161 public:
zainulcharbiwala 0:ee0649a9025a 162
zainulcharbiwala 0:ee0649a9025a 163 /**
zainulcharbiwala 0:ee0649a9025a 164 * @brief Constructor
zainulcharbiwala 0:ee0649a9025a 165 * @param mosi mbed pin to use for MOSI line of SPI interface.
zainulcharbiwala 0:ee0649a9025a 166 * @param miso mbed pin to use for MISO line of SPI interface.
zainulcharbiwala 0:ee0649a9025a 167 * @param sck mbed pin to use for SCK line of SPI interface.
zainulcharbiwala 0:ee0649a9025a 168 * @param csn mbed pin to use for not chip select line of SPI interface.
zainulcharbiwala 0:ee0649a9025a 169 * @param reset mbed pin to use for the reset line.
zainulcharbiwala 0:ee0649a9025a 170 * @param drdy mbed pin to use for the data ready line.
zainulcharbiwala 0:ee0649a9025a 171 * @param start mbed pin to use for the start conversion line.
zainulcharbiwala 0:ee0649a9025a 172 */
zainulcharbiwala 0:ee0649a9025a 173 ADS1298(PinName mosi, PinName miso, PinName sck, PinName csn, PinName reset, PinName drdy, PinName start);
zainulcharbiwala 0:ee0649a9025a 174
zainulcharbiwala 0:ee0649a9025a 175
zainulcharbiwala 0:ee0649a9025a 176 // High Level methods
zainulcharbiwala 0:ee0649a9025a 177
zainulcharbiwala 0:ee0649a9025a 178 /**
zainulcharbiwala 0:ee0649a9025a 179 * @brief High level Init, most settings remain at Power-On reset value
zainulcharbiwala 0:ee0649a9025a 180 */
zainulcharbiwala 0:ee0649a9025a 181 void initialize(void (*dataready)(void));
zainulcharbiwala 0:ee0649a9025a 182
zainulcharbiwala 0:ee0649a9025a 183 /**
zainulcharbiwala 0:ee0649a9025a 184 * @brief Start capturing data
zainulcharbiwala 0:ee0649a9025a 185 */
zainulcharbiwala 0:ee0649a9025a 186 void startCapture();
zainulcharbiwala 0:ee0649a9025a 187
zainulcharbiwala 0:ee0649a9025a 188 /**
zainulcharbiwala 0:ee0649a9025a 189 * @brief Stop capturing data
zainulcharbiwala 0:ee0649a9025a 190 */
zainulcharbiwala 0:ee0649a9025a 191 void stopCapture();
zainulcharbiwala 0:ee0649a9025a 192
zainulcharbiwala 0:ee0649a9025a 193 /**
zainulcharbiwala 0:ee0649a9025a 194 * @brief Read data from the ADS1298
zainulcharbiwala 0:ee0649a9025a 195 */
zainulcharbiwala 0:ee0649a9025a 196 void readData(uint8_t *buf);
zainulcharbiwala 0:ee0649a9025a 197
zainulcharbiwala 0:ee0649a9025a 198 /**
zainulcharbiwala 0:ee0649a9025a 199 * @brief Update the lead off status
zainulcharbiwala 0:ee0649a9025a 200 */
zainulcharbiwala 0:ee0649a9025a 201 int updateLeadOff(uint8_t *buf);
zainulcharbiwala 0:ee0649a9025a 202
zainulcharbiwala 0:ee0649a9025a 203 private:
zainulcharbiwala 0:ee0649a9025a 204
zainulcharbiwala 0:ee0649a9025a 205 SPI spi_; // mosi, miso, sclk
zainulcharbiwala 0:ee0649a9025a 206 DigitalOut cs_;
zainulcharbiwala 0:ee0649a9025a 207 DigitalOut reset_;
zainulcharbiwala 0:ee0649a9025a 208 InterruptIn drdy_;
zainulcharbiwala 0:ee0649a9025a 209 DigitalOut start_;
zainulcharbiwala 0:ee0649a9025a 210 uint16_t lOff_;
zainulcharbiwala 0:ee0649a9025a 211
zainulcharbiwala 0:ee0649a9025a 212 // Low Level methods
zainulcharbiwala 0:ee0649a9025a 213 void sendCommand(uint8_t cmd);
zainulcharbiwala 0:ee0649a9025a 214 void writeRegister(uint8_t reg, uint8_t val);
zainulcharbiwala 0:ee0649a9025a 215 uint8_t readRegister(uint8_t reg);
zainulcharbiwala 0:ee0649a9025a 216
zainulcharbiwala 0:ee0649a9025a 217 };
zainulcharbiwala 0:ee0649a9025a 218
zainulcharbiwala 0:ee0649a9025a 219
zainulcharbiwala 0:ee0649a9025a 220
zainulcharbiwala 0:ee0649a9025a 221 #endif