2 // Low-Noise, 8-Channel, 24-Bit Analog-to-Digital Converter
3 // http://www.ti.com/product/ADS1299
8 // ADS1299 SPI commands
25 ADS_REG_CONFIG1 = 0x01,
26 ADS_REG_CONFIG2 = 0x02,
27 ADS_REG_CONFIG3 = 0x03,
29 ADS_REG_CH1SET = 0x05,
30 ADS_REG_CH2SET = 0x06,
31 ADS_REG_CH3SET = 0x07,
32 ADS_REG_CH4SET = 0x08,
33 ADS_REG_CH5SET = 0x09,
34 ADS_REG_CH6SET = 0x0A,
35 ADS_REG_CH7SET = 0x0B,
36 ADS_REG_CH8SET = 0x0C,
37 ADS_REG_BIAS_SENSP = 0x0D,
38 ADS_REG_BIAS_SENSN = 0x0E,
39 ADS_REG_LOFF_SENSP = 0x0F,
40 ADS_REG_LOFF_SENSN = 0x10,
41 ADS_REG_LOFF_FLIP = 0x11,
42 ADS_REG_LOFF_STATP = 0x12,
43 ADS_REG_LOFF_STATN = 0x13,
47 ADS_REG_CONFIG4 = 0x17,
49 ADS_FIRST_REG = ADS_REG_ID,
50 ADS_LAST_REG = ADS_REG_CONFIG4,
51 ADS_REG_NUM = ADS_LAST_REG+1 //number of registers
56 ADS_ID_1299 = 0x1E, // ID reg value, ADS1299 (8 channels)
57 ADS_ID_1299_6 = 0x1D, // ID reg value, ADS1299-6 (6 channels)
58 ADS_ID_1299_4 = 0x1C, // ID reg value, ADS1299-4 (4 channels)
59 ADS_ID_MASK = 0x1F, // ID reg mask (ignore REV_ID)
62 ADS_CONFIG1_FIXED = 0x90, // fixed fields in ADS_REG_CONFIG1
63 ADS_DR_16 = 0<<0, // 16kSPS
67 ADS_DR_1 = 4<<0, // 1kSPS
68 ADS_DR_05 = 5<<0, // 500SPS
69 ADS_DR_025 = 6<<0, // 250SPS
72 ADS_CONFIG2_FIXED = 0xC0, // fixed fields in ADS_REG_CONFIG2
73 ADS_INT_TEST = 1<<4, // Test signals are generated internally
74 ADS_TEST_AMP = 1<<2, // Test signal amplitude
75 ADS_TEST_FREQ_0 = 0<<0, // Pulsed at fCLK / (1<<21)
76 ADS_TEST_FREQ_1 = 1<<0, // Pulsed at fCLK / (1<<20)
77 ADS_TEST_FREQ_3 = 3<<0, // At dc
80 ADS_CONFIG3_FIXED = 0x60, // fixed fields in ADS_REG_CONFIG3
81 ADS_PDB_REFBUF = 1<<7, // _not_ Power-down reference buffer
82 ADS_BIAS_MEAS = 1<<4, // BIAS measurement
83 ADS_BIASREF_INT = 1<<3, // BIASREF connected to (AVDD + AVSS) / 2
84 ADS_PDB_BIAS = 1<<2, // _not_ BIAS buffer power down
85 ADS_BIAS_LOFF_SENS = 1<<1, // BIAS sense function
86 ADS_BIAS_STAT = 1<<0, // BIAS lead-off status
89 ADS_ILOFF_6N = 0<<2, // Lead-off current: 6nA
90 ADS_ILOFF_24N = 1<<2, // Lead-off current: 6nA
91 ADS_ILOFF_6U = 2<<2, // Lead-off current: 6nA
92 ADS_ILOFF_24U = 3<<2, // Lead-off current: 6nA
93 ADS_FLOFF_DC = 0<<0, // Lead-off freq: DC
94 ADS_FLOFF_7 = 1<<0, // Lead-off freq: 7.8Hz
95 ADS_FLOFF_31 = 2<<0, // Lead-off freq: 31Hz
96 ADS_FLOFF_F4 = 3<<0, // Lead-off freq: fDR/4
99 ADS_CH_PD = 1<<7, // channel Power-down
100 ADS_GAIN_1 = 0<<4, // channel gain
107 ADS_SRB2 = 1<<3, // SRB2 connection
108 ADS_MUX_INPUT = 0<<0, // Normal input
109 ADS_MUX_SHORT = 1<<0, // Input shorted
110 ADS_MUX_BIAS = 2<<0, // BIAS measurements
111 ADS_MUX_MVDD = 3<<0, // MVDD for supply measurement
112 ADS_MUX_TEMP = 4<<0, // Temperature sensor
113 ADS_MUX_TEST = 5<<0, // Test signal
114 ADS_MUX_BIAS_DRP = 6<<0, // BIAS_DRP (positive electrode is the driver)
115 ADS_MUX_BIAS_DRN = 7<<0, // BIAS_DRN (negative electrode is the driver)
118 ADS_SRB1 = 1<<5, // SRB1 connection (all inverting inputs)
121 #endif // HW_ADS1299_H