Simple wrapper object for LTC2606 1CH 16Bit DAC. Instantiate DacLtc2606 object instance passing reference to mbed.I2C object instance. Call write() method on DacLtc2606 instance passing 16Bit integer (0 [Off] to 32767/-32768 [Half-On] to -1 [Full-On]) to set DAC output.
DacLtc2606.h@2:d101ca4ae85e, 2012-09-14 (annotated)
- Committer:
- rkimble
- Date:
- Fri Sep 14 17:23:05 2012 +0000
- Revision:
- 2:d101ca4ae85e
- Parent:
- 1:5924632f3344
Improved numeric type usage/refined code.
; Added local storage and retrieval of DAC output value.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
rkimble | 1:5924632f3344 | 1 | /* mbed LTC2606 1CH 16Bit DAC Library |
rkimble | 1:5924632f3344 | 2 | * Copyright (c) 2012 Reed Kimble, MIT License |
rkimble | 1:5924632f3344 | 3 | * |
rkimble | 1:5924632f3344 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
rkimble | 1:5924632f3344 | 5 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
rkimble | 1:5924632f3344 | 6 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
rkimble | 1:5924632f3344 | 7 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
rkimble | 1:5924632f3344 | 8 | * furnished to do so, subject to the following conditions: |
rkimble | 1:5924632f3344 | 9 | * |
rkimble | 1:5924632f3344 | 10 | * The above copyright notice and this permission notice shall be included in all copies or |
rkimble | 1:5924632f3344 | 11 | * substantial portions of the Software. |
rkimble | 1:5924632f3344 | 12 | * |
rkimble | 1:5924632f3344 | 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
rkimble | 1:5924632f3344 | 14 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
rkimble | 1:5924632f3344 | 15 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
rkimble | 1:5924632f3344 | 16 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
rkimble | 1:5924632f3344 | 17 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
rkimble | 1:5924632f3344 | 18 | */ |
rkimble | 1:5924632f3344 | 19 | |
rkimble | 1:5924632f3344 | 20 | #ifndef MBED_DACLTC2606_H |
rkimble | 1:5924632f3344 | 21 | #define MBED_DACLTC2606_H |
rkimble | 1:5924632f3344 | 22 | |
rkimble | 1:5924632f3344 | 23 | #include "mbed.h" |
rkimble | 1:5924632f3344 | 24 | |
rkimble | 1:5924632f3344 | 25 | /* I2C DAC controller class |
rkimble | 1:5924632f3344 | 26 | */ |
rkimble | 1:5924632f3344 | 27 | class DacLtc2606 { |
rkimble | 1:5924632f3344 | 28 | public: |
rkimble | 1:5924632f3344 | 29 | /** Create a DacLtc2606 object using to the specified I2C object |
rkimble | 1:5924632f3344 | 30 | * |
rkimble | 1:5924632f3344 | 31 | * @param i2c The I2C object to communicate with |
rkimble | 1:5924632f3344 | 32 | */ |
rkimble | 1:5924632f3344 | 33 | DacLtc2606(I2C i2c); |
rkimble | 1:5924632f3344 | 34 | |
rkimble | 2:d101ca4ae85e | 35 | /** Set the DAC output to the specifed unsigned short integer value |
rkimble | 1:5924632f3344 | 36 | * |
rkimble | 2:d101ca4ae85e | 37 | * @param value The 16 bit integer to write (0 to 65535) |
rkimble | 1:5924632f3344 | 38 | */ |
rkimble | 2:d101ca4ae85e | 39 | bool write(unsigned short value); |
rkimble | 1:5924632f3344 | 40 | |
rkimble | 1:5924632f3344 | 41 | /** Set the DAC output to the specified percentage of max |
rkimble | 1:5924632f3344 | 42 | * |
rkimble | 1:5924632f3344 | 43 | * @param percent A double from 0.0 to 1.0 representing the percent of max output power on the DAC |
rkimble | 1:5924632f3344 | 44 | */ |
rkimble | 1:5924632f3344 | 45 | bool write(double percent); |
rkimble | 1:5924632f3344 | 46 | |
rkimble | 2:d101ca4ae85e | 47 | /** Retreives the unsigned short integer value currently assigned to the DAC output |
rkimble | 2:d101ca4ae85e | 48 | */ |
rkimble | 2:d101ca4ae85e | 49 | unsigned short getCurrentValue(); |
rkimble | 2:d101ca4ae85e | 50 | |
rkimble | 1:5924632f3344 | 51 | private: |
rkimble | 1:5924632f3344 | 52 | static const char _slave = 0xE4; |
rkimble | 1:5924632f3344 | 53 | static const char _command = 0x30; |
rkimble | 1:5924632f3344 | 54 | I2C _i2c; |
rkimble | 2:d101ca4ae85e | 55 | unsigned short _currentValue; |
rkimble | 1:5924632f3344 | 56 | }; |
rkimble | 1:5924632f3344 | 57 | |
rkimble | 0:896aaf4b80d0 | 58 | #endif |