Analog Devices / ADT7410 16-Bit Digital I2C Temperature Sensor
Dependents: Frequency_Counter_w_GPS_1PPS MQTToverCC3000 Frequency_Cntr_1PPS_F746ZG
ADT7410.cpp@4:523b5b34e0c9, 2017-08-23 (annotated)
- Committer:
- kenjiArai
- Date:
- Wed Aug 23 09:19:57 2017 +0000
- Revision:
- 4:523b5b34e0c9
- Parent:
- 3:912cd5ac1cce
countermeasure for NonCopyable
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kenjiArai | 0:6ec4df1fa459 | 1 | /* |
kenjiArai | 0:6ec4df1fa459 | 2 | * mbed library program |
kenjiArai | 0:6ec4df1fa459 | 3 | * Analog Devices / ADT7410 16-Bit Digital I2C Temperature Sensor |
kenjiArai | 0:6ec4df1fa459 | 4 | * http://www.analog.com/en/mems-sensors/digital-temperature-sensors/adt7410/products/product.html |
kenjiArai | 0:6ec4df1fa459 | 5 | * |
kenjiArai | 4:523b5b34e0c9 | 6 | * Copyright (c) 2014,'15,'17 Kenji Arai / JH1PJL |
kenjiArai | 0:6ec4df1fa459 | 7 | * http://www.page.sannet.ne.jp/kenjia/index.html |
kenjiArai | 0:6ec4df1fa459 | 8 | * http://mbed.org/users/kenjiArai/ |
kenjiArai | 4:523b5b34e0c9 | 9 | * Created: November 26th, 2014 |
kenjiArai | 4:523b5b34e0c9 | 10 | * Revised: FAugust 23rd, 2017 |
kenjiArai | 0:6ec4df1fa459 | 11 | */ |
kenjiArai | 0:6ec4df1fa459 | 12 | |
kenjiArai | 0:6ec4df1fa459 | 13 | #include "mbed.h" |
kenjiArai | 0:6ec4df1fa459 | 14 | #include "ADT7410.h" |
kenjiArai | 0:6ec4df1fa459 | 15 | |
kenjiArai | 4:523b5b34e0c9 | 16 | ADT7410::ADT7410 (PinName p_sda, PinName p_scl, uint8_t addr) |
kenjiArai | 4:523b5b34e0c9 | 17 | : _i2c_p(new I2C(p_sda, p_scl)), _i2c(*_i2c_p) |
kenjiArai | 0:6ec4df1fa459 | 18 | { |
kenjiArai | 0:6ec4df1fa459 | 19 | ADT7410_addr = (char)addr; |
kenjiArai | 0:6ec4df1fa459 | 20 | init(); |
kenjiArai | 0:6ec4df1fa459 | 21 | } |
kenjiArai | 0:6ec4df1fa459 | 22 | |
kenjiArai | 4:523b5b34e0c9 | 23 | ADT7410::ADT7410 (I2C& p_i2c, uint8_t addr) |
kenjiArai | 4:523b5b34e0c9 | 24 | : _i2c(p_i2c) |
kenjiArai | 0:6ec4df1fa459 | 25 | { |
kenjiArai | 0:6ec4df1fa459 | 26 | ADT7410_addr = (char)addr; |
kenjiArai | 0:6ec4df1fa459 | 27 | init(); |
kenjiArai | 0:6ec4df1fa459 | 28 | } |
kenjiArai | 0:6ec4df1fa459 | 29 | |
kenjiArai | 0:6ec4df1fa459 | 30 | /////////////// Read All data ///////////////////////////// |
kenjiArai | 0:6ec4df1fa459 | 31 | void ADT7410::read_all() |
kenjiArai | 0:6ec4df1fa459 | 32 | { |
kenjiArai | 0:6ec4df1fa459 | 33 | dt[0] = ADT7410_A_T_MSB; |
kenjiArai | 2:231bddd40e29 | 34 | _i2c.write((int)ADT7410_addr, (char *)dt, 1, true); |
kenjiArai | 2:231bddd40e29 | 35 | _i2c.read((int)ADT7410_addr, (char *)dt, 4, false); |
kenjiArai | 0:6ec4df1fa459 | 36 | } |
kenjiArai | 0:6ec4df1fa459 | 37 | |
kenjiArai | 0:6ec4df1fa459 | 38 | /////////////// Read Temperature ////////////////////////// |
kenjiArai | 0:6ec4df1fa459 | 39 | float ADT7410::read_temp() |
kenjiArai | 0:6ec4df1fa459 | 40 | { |
kenjiArai | 1:4a1eb0f32025 | 41 | uint16_t data; |
kenjiArai | 1:4a1eb0f32025 | 42 | |
kenjiArai | 1:4a1eb0f32025 | 43 | read_all(); |
kenjiArai | 1:4a1eb0f32025 | 44 | if (dt[3] & 0x80){ // 16bit |
kenjiArai | 2:231bddd40e29 | 45 | data = (dt[0] << 8) + dt[1]; |
kenjiArai | 1:4a1eb0f32025 | 46 | } else { // 13bit |
kenjiArai | 1:4a1eb0f32025 | 47 | data = (dt[0] << 8) + (dt[1] & 0xf8); |
kenjiArai | 1:4a1eb0f32025 | 48 | } |
kenjiArai | 1:4a1eb0f32025 | 49 | if (dt[0] & 0x80){ // - |
kenjiArai | 2:231bddd40e29 | 50 | return (float)(data - 65536) / 128; |
kenjiArai | 1:4a1eb0f32025 | 51 | } else { // + |
kenjiArai | 1:4a1eb0f32025 | 52 | return (float)data / 128; |
kenjiArai | 1:4a1eb0f32025 | 53 | } |
kenjiArai | 0:6ec4df1fa459 | 54 | } |
kenjiArai | 0:6ec4df1fa459 | 55 | |
kenjiArai | 0:6ec4df1fa459 | 56 | /////////////// Check Status ////////////////////////////// |
kenjiArai | 0:6ec4df1fa459 | 57 | uint8_t ADT7410::read_status() |
kenjiArai | 0:6ec4df1fa459 | 58 | { |
kenjiArai | 1:4a1eb0f32025 | 59 | int8_t dt = read_reg_byte(ADT7410_A_STATUS); |
kenjiArai | 1:4a1eb0f32025 | 60 | return dt; |
kenjiArai | 0:6ec4df1fa459 | 61 | } |
kenjiArai | 0:6ec4df1fa459 | 62 | |
kenjiArai | 0:6ec4df1fa459 | 63 | /////////////// Check Configration ////////////////////////// |
kenjiArai | 0:6ec4df1fa459 | 64 | uint8_t ADT7410::read_config() |
kenjiArai | 0:6ec4df1fa459 | 65 | { |
kenjiArai | 1:4a1eb0f32025 | 66 | int8_t dt = read_reg_byte(ADT7410_A_CONFIG); |
kenjiArai | 1:4a1eb0f32025 | 67 | return dt; |
kenjiArai | 0:6ec4df1fa459 | 68 | } |
kenjiArai | 0:6ec4df1fa459 | 69 | |
kenjiArai | 0:6ec4df1fa459 | 70 | /////////////// Set Configration ////////////////////////// |
kenjiArai | 0:6ec4df1fa459 | 71 | uint8_t ADT7410::set_config(uint8_t cfg) |
kenjiArai | 0:6ec4df1fa459 | 72 | { |
kenjiArai | 1:4a1eb0f32025 | 73 | return write_reg_byte(ADT7410_A_CONFIG, cfg); |
kenjiArai | 1:4a1eb0f32025 | 74 | } |
kenjiArai | 1:4a1eb0f32025 | 75 | |
kenjiArai | 1:4a1eb0f32025 | 76 | /////////////// Read ID & REV ////////////////////////// |
kenjiArai | 1:4a1eb0f32025 | 77 | void ADT7410::read_id_rev() |
kenjiArai | 1:4a1eb0f32025 | 78 | { |
kenjiArai | 1:4a1eb0f32025 | 79 | uint8_t dt; |
kenjiArai | 0:6ec4df1fa459 | 80 | |
kenjiArai | 1:4a1eb0f32025 | 81 | dt = read_reg_byte(ADT7410_A_ID); |
kenjiArai | 1:4a1eb0f32025 | 82 | id_number = GET_ID(dt); |
kenjiArai | 1:4a1eb0f32025 | 83 | rev_number = GET_REV(dt); |
kenjiArai | 1:4a1eb0f32025 | 84 | } |
kenjiArai | 1:4a1eb0f32025 | 85 | |
kenjiArai | 1:4a1eb0f32025 | 86 | uint8_t ADT7410::read_ID() |
kenjiArai | 1:4a1eb0f32025 | 87 | { |
kenjiArai | 1:4a1eb0f32025 | 88 | return id_number; |
kenjiArai | 1:4a1eb0f32025 | 89 | } |
kenjiArai | 1:4a1eb0f32025 | 90 | |
kenjiArai | 1:4a1eb0f32025 | 91 | uint8_t ADT7410::read_REV() |
kenjiArai | 1:4a1eb0f32025 | 92 | { |
kenjiArai | 1:4a1eb0f32025 | 93 | return rev_number; |
kenjiArai | 0:6ec4df1fa459 | 94 | } |
kenjiArai | 0:6ec4df1fa459 | 95 | |
kenjiArai | 1:4a1eb0f32025 | 96 | uint8_t ADT7410::who_am_i() |
kenjiArai | 0:6ec4df1fa459 | 97 | { |
kenjiArai | 1:4a1eb0f32025 | 98 | if (id_number == I_AM_ADT7410){ |
kenjiArai | 1:4a1eb0f32025 | 99 | return 1; |
kenjiArai | 1:4a1eb0f32025 | 100 | } else { |
kenjiArai | 1:4a1eb0f32025 | 101 | return 0; |
kenjiArai | 1:4a1eb0f32025 | 102 | } |
kenjiArai | 0:6ec4df1fa459 | 103 | } |
kenjiArai | 0:6ec4df1fa459 | 104 | |
kenjiArai | 1:4a1eb0f32025 | 105 | /////////////// Read/Write specific register ////////////// |
kenjiArai | 1:4a1eb0f32025 | 106 | uint8_t ADT7410::read_reg_byte(uint8_t reg) |
kenjiArai | 0:6ec4df1fa459 | 107 | { |
kenjiArai | 1:4a1eb0f32025 | 108 | uint8_t dx[2]; |
kenjiArai | 1:4a1eb0f32025 | 109 | |
kenjiArai | 1:4a1eb0f32025 | 110 | dx[0] = reg; |
kenjiArai | 1:4a1eb0f32025 | 111 | _i2c.write((int)ADT7410_addr, (char *)dx, 1, true); |
kenjiArai | 2:231bddd40e29 | 112 | _i2c.read((int)ADT7410_addr, (char *)dx, 1, false); |
kenjiArai | 1:4a1eb0f32025 | 113 | return dx[0]; |
kenjiArai | 1:4a1eb0f32025 | 114 | } |
kenjiArai | 1:4a1eb0f32025 | 115 | |
kenjiArai | 1:4a1eb0f32025 | 116 | uint8_t ADT7410::write_reg_byte(uint8_t reg, uint8_t dt) |
kenjiArai | 1:4a1eb0f32025 | 117 | { |
kenjiArai | 1:4a1eb0f32025 | 118 | uint8_t dx[2]; |
kenjiArai | 1:4a1eb0f32025 | 119 | |
kenjiArai | 1:4a1eb0f32025 | 120 | dx[0] = reg; |
kenjiArai | 3:912cd5ac1cce | 121 | dx[1] = dt; |
kenjiArai | 2:231bddd40e29 | 122 | _i2c.write((int)ADT7410_addr, (char *)dx, 2, false); |
kenjiArai | 1:4a1eb0f32025 | 123 | return dx[1]; |
kenjiArai | 0:6ec4df1fa459 | 124 | } |
kenjiArai | 0:6ec4df1fa459 | 125 | |
kenjiArai | 0:6ec4df1fa459 | 126 | /////////////// Initialize //////////////////////////////// |
kenjiArai | 0:6ec4df1fa459 | 127 | void ADT7410::init() |
kenjiArai | 0:6ec4df1fa459 | 128 | { |
kenjiArai | 0:6ec4df1fa459 | 129 | uint8_t dx[2]; |
kenjiArai | 0:6ec4df1fa459 | 130 | |
kenjiArai | 0:6ec4df1fa459 | 131 | dx[0] = ADT7410_A_CONFIG; |
kenjiArai | 2:231bddd40e29 | 132 | dx[1] = RESOLUTION_16BIT + OPERATION_MODE_CONT; |
kenjiArai | 2:231bddd40e29 | 133 | _i2c.write((int)ADT7410_addr, (char *)dx, 2, false); |
kenjiArai | 1:4a1eb0f32025 | 134 | read_id_rev(); |
kenjiArai | 0:6ec4df1fa459 | 135 | } |
kenjiArai | 4:523b5b34e0c9 | 136 |