HDC1050 Library
HDC1050.cpp@0:771ed287f6a8, 2017-07-08 (annotated)
- Committer:
- zebrin1422
- Date:
- Sat Jul 08 17:56:35 2017 +0000
- Revision:
- 0:771ed287f6a8
- Child:
- 1:db08a3faa811
HDC1050 ?????
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
zebrin1422 | 0:771ed287f6a8 | 1 | #include"mbed.h" |
zebrin1422 | 0:771ed287f6a8 | 2 | #include"HDC1050.h" |
zebrin1422 | 0:771ed287f6a8 | 3 | |
zebrin1422 | 0:771ed287f6a8 | 4 | //Serial pc(USBTX, USBRX); //tx, rx |
zebrin1422 | 0:771ed287f6a8 | 5 | |
zebrin1422 | 0:771ed287f6a8 | 6 | myHDC1050::myHDC1050(I2C &i2cBus){ |
zebrin1422 | 0:771ed287f6a8 | 7 | i2c = &i2cBus; |
zebrin1422 | 0:771ed287f6a8 | 8 | i2c->frequency(400000); |
zebrin1422 | 0:771ed287f6a8 | 9 | } |
zebrin1422 | 0:771ed287f6a8 | 10 | |
zebrin1422 | 0:771ed287f6a8 | 11 | void myHDC1050::setup(int i) |
zebrin1422 | 0:771ed287f6a8 | 12 | { |
zebrin1422 | 0:771ed287f6a8 | 13 | reg = check_reg; |
zebrin1422 | 0:771ed287f6a8 | 14 | char cmd[3][2]; |
zebrin1422 | 0:771ed287f6a8 | 15 | cmd[0][0] = 0x10; cmd[0][1] = 0x00; |
zebrin1422 | 0:771ed287f6a8 | 16 | cmd[1][0] = 0x00; cmd[1][1] = 0x00; |
zebrin1422 | 0:771ed287f6a8 | 17 | cmd[1][0] = 0x03; cmd[3][1] = 0x00; |
zebrin1422 | 0:771ed287f6a8 | 18 | |
zebrin1422 | 0:771ed287f6a8 | 19 | i2c->write(SLV_WRITE, ®, 1, true); |
zebrin1422 | 0:771ed287f6a8 | 20 | i2c->write(SLV_WRITE, cmd[i], 2, false); |
zebrin1422 | 0:771ed287f6a8 | 21 | } |
zebrin1422 | 0:771ed287f6a8 | 22 | |
zebrin1422 | 0:771ed287f6a8 | 23 | int myHDC1050::Connection_check() |
zebrin1422 | 0:771ed287f6a8 | 24 | { |
zebrin1422 | 0:771ed287f6a8 | 25 | char reg = check_reg; |
zebrin1422 | 0:771ed287f6a8 | 26 | char check[2]; |
zebrin1422 | 0:771ed287f6a8 | 27 | |
zebrin1422 | 0:771ed287f6a8 | 28 | i2c->write(SLV_WRITE,®,1); |
zebrin1422 | 0:771ed287f6a8 | 29 | i2c->read(SLV_READ,check,2); |
zebrin1422 | 0:771ed287f6a8 | 30 | |
zebrin1422 | 0:771ed287f6a8 | 31 | if(check[0] == 0x10 && check[1] == 0x50)return 0; |
zebrin1422 | 0:771ed287f6a8 | 32 | else return 1; |
zebrin1422 | 0:771ed287f6a8 | 33 | |
zebrin1422 | 0:771ed287f6a8 | 34 | } |
zebrin1422 | 0:771ed287f6a8 | 35 | |
zebrin1422 | 0:771ed287f6a8 | 36 | void myHDC1050::get_temp_hum(float *temp, float *hum) |
zebrin1422 | 0:771ed287f6a8 | 37 | { |
zebrin1422 | 0:771ed287f6a8 | 38 | char reg = Temperature_reg; |
zebrin1422 | 0:771ed287f6a8 | 39 | char buff[4]; |
zebrin1422 | 0:771ed287f6a8 | 40 | unsigned int val[4]; |
zebrin1422 | 0:771ed287f6a8 | 41 | |
zebrin1422 | 0:771ed287f6a8 | 42 | setup(0); |
zebrin1422 | 0:771ed287f6a8 | 43 | |
zebrin1422 | 0:771ed287f6a8 | 44 | i2c->write(SLV_WRITE, ®,1); |
zebrin1422 | 0:771ed287f6a8 | 45 | wait_ms(250); |
zebrin1422 | 0:771ed287f6a8 | 46 | i2c->read(SLV_READ, buff,4,false); |
zebrin1422 | 0:771ed287f6a8 | 47 | |
zebrin1422 | 0:771ed287f6a8 | 48 | val[0] = (unsigned int)buff[0] << 8; |
zebrin1422 | 0:771ed287f6a8 | 49 | val[1] = (unsigned int)buff[1]; |
zebrin1422 | 0:771ed287f6a8 | 50 | val[2] = (unsigned int)buff[2] << 8; |
zebrin1422 | 0:771ed287f6a8 | 51 | val[3] = (unsigned int)buff[3]; |
zebrin1422 | 0:771ed287f6a8 | 52 | |
zebrin1422 | 0:771ed287f6a8 | 53 | *temp = (float)(val[0] | val[1]); |
zebrin1422 | 0:771ed287f6a8 | 54 | *hum = (float)(val[2] | val[3]); |
zebrin1422 | 0:771ed287f6a8 | 55 | |
zebrin1422 | 0:771ed287f6a8 | 56 | *temp = *temp*165.0/65536.0 - 40.0; |
zebrin1422 | 0:771ed287f6a8 | 57 | *hum = *hum*100.0/65536.0; |
zebrin1422 | 0:771ed287f6a8 | 58 | |
zebrin1422 | 0:771ed287f6a8 | 59 | } |
zebrin1422 | 0:771ed287f6a8 | 60 | |
zebrin1422 | 0:771ed287f6a8 | 61 | void myHDC1050::get_temp(float *temp) |
zebrin1422 | 0:771ed287f6a8 | 62 | { |
zebrin1422 | 0:771ed287f6a8 | 63 | char reg = Temperature_reg; |
zebrin1422 | 0:771ed287f6a8 | 64 | char buff[2]; |
zebrin1422 | 0:771ed287f6a8 | 65 | unsigned int val[2]; |
zebrin1422 | 0:771ed287f6a8 | 66 | |
zebrin1422 | 0:771ed287f6a8 | 67 | setup(1); |
zebrin1422 | 0:771ed287f6a8 | 68 | |
zebrin1422 | 0:771ed287f6a8 | 69 | i2c->write(SLV_WRITE, ®,1); |
zebrin1422 | 0:771ed287f6a8 | 70 | wait_ms(130); |
zebrin1422 | 0:771ed287f6a8 | 71 | i2c->read(SLV_READ, buff, 2,false); |
zebrin1422 | 0:771ed287f6a8 | 72 | |
zebrin1422 | 0:771ed287f6a8 | 73 | val[0] = (unsigned int)buff[0] << 8; |
zebrin1422 | 0:771ed287f6a8 | 74 | val[1] = (unsigned int)buff[1]; |
zebrin1422 | 0:771ed287f6a8 | 75 | |
zebrin1422 | 0:771ed287f6a8 | 76 | *temp = (float)(val[0] | val[1]); |
zebrin1422 | 0:771ed287f6a8 | 77 | *temp = *temp *165.0/65536.0 - 40.0; |
zebrin1422 | 0:771ed287f6a8 | 78 | |
zebrin1422 | 0:771ed287f6a8 | 79 | } |
zebrin1422 | 0:771ed287f6a8 | 80 | |
zebrin1422 | 0:771ed287f6a8 | 81 | void myHDC1050::get_hum(float *hum) |
zebrin1422 | 0:771ed287f6a8 | 82 | { |
zebrin1422 | 0:771ed287f6a8 | 83 | char reg = Humidity_reg; |
zebrin1422 | 0:771ed287f6a8 | 84 | char buff[2]; |
zebrin1422 | 0:771ed287f6a8 | 85 | unsigned int val[2]; |
zebrin1422 | 0:771ed287f6a8 | 86 | |
zebrin1422 | 0:771ed287f6a8 | 87 | setup(1); |
zebrin1422 | 0:771ed287f6a8 | 88 | |
zebrin1422 | 0:771ed287f6a8 | 89 | i2c->write(SLV_WRITE, ®,1); |
zebrin1422 | 0:771ed287f6a8 | 90 | wait_ms(130); |
zebrin1422 | 0:771ed287f6a8 | 91 | i2c->read(SLV_READ, buff, 2,false); |
zebrin1422 | 0:771ed287f6a8 | 92 | |
zebrin1422 | 0:771ed287f6a8 | 93 | val[0] = (unsigned int)buff[0] << 8; |
zebrin1422 | 0:771ed287f6a8 | 94 | val[1] = (unsigned int)buff[1]; |
zebrin1422 | 0:771ed287f6a8 | 95 | |
zebrin1422 | 0:771ed287f6a8 | 96 | *hum = (float)(val[0] | val[1]); |
zebrin1422 | 0:771ed287f6a8 | 97 | *hum = *hum*100.0/65536.0; |
zebrin1422 | 0:771ed287f6a8 | 98 | |
zebrin1422 | 0:771ed287f6a8 | 99 | } |
zebrin1422 | 0:771ed287f6a8 | 100 | |
zebrin1422 | 0:771ed287f6a8 | 101 | void myHDC1050::get_temp_hater(float *temp) |
zebrin1422 | 0:771ed287f6a8 | 102 | { |
zebrin1422 | 0:771ed287f6a8 | 103 | char reg = Temperature_reg; |
zebrin1422 | 0:771ed287f6a8 | 104 | char buff[2]; |
zebrin1422 | 0:771ed287f6a8 | 105 | unsigned int val[2]; |
zebrin1422 | 0:771ed287f6a8 | 106 | |
zebrin1422 | 0:771ed287f6a8 | 107 | setup(2); |
zebrin1422 | 0:771ed287f6a8 | 108 | |
zebrin1422 | 0:771ed287f6a8 | 109 | i2c->write(SLV_WRITE, ®,1); |
zebrin1422 | 0:771ed287f6a8 | 110 | wait_ms(130); |
zebrin1422 | 0:771ed287f6a8 | 111 | i2c->read(SLV_READ, buff, 2,false); |
zebrin1422 | 0:771ed287f6a8 | 112 | |
zebrin1422 | 0:771ed287f6a8 | 113 | val[0] = (unsigned int)buff[0] << 8; |
zebrin1422 | 0:771ed287f6a8 | 114 | val[1] = (unsigned int)buff[1]; |
zebrin1422 | 0:771ed287f6a8 | 115 | |
zebrin1422 | 0:771ed287f6a8 | 116 | *temp = (float)(val[0] | val[1]); |
zebrin1422 | 0:771ed287f6a8 | 117 | *temp = *temp *165.0/65536.0 - 40.0; |
zebrin1422 | 0:771ed287f6a8 | 118 | |
zebrin1422 | 0:771ed287f6a8 | 119 | } |