This library controls a ST TDA7419 audio control IC. This is part of a project to implement an mbed controlled car stereo. The TDA7419 will take in stereo and output four channels of audio plus a subwoofer channel.
PreampTDA7419.h@0:86ea14016b10, 2014-10-19 (annotated)
- Committer:
- danielashercohen
- Date:
- Sun Oct 19 04:30:22 2014 +0000
- Revision:
- 0:86ea14016b10
- Child:
- 1:69c37f1ab7df
first sound from the TDA7419;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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danielashercohen | 0:86ea14016b10 | 1 | /** TDA7419 PreAmp library, I2C |
danielashercohen | 0:86ea14016b10 | 2 | * |
danielashercohen | 0:86ea14016b10 | 3 | * @Author: Dan Cohen |
danielashercohen | 0:86ea14016b10 | 4 | */ |
danielashercohen | 0:86ea14016b10 | 5 | #ifndef DigoleSerialDisp_h |
danielashercohen | 0:86ea14016b10 | 6 | #define DigoleSerialDisp_h |
danielashercohen | 0:86ea14016b10 | 7 | |
danielashercohen | 0:86ea14016b10 | 8 | #include "mbed.h" |
danielashercohen | 0:86ea14016b10 | 9 | #include <inttypes.h> |
danielashercohen | 0:86ea14016b10 | 10 | |
danielashercohen | 0:86ea14016b10 | 11 | /////////////////////////// |
danielashercohen | 0:86ea14016b10 | 12 | // Variables for TDA7419 // |
danielashercohen | 0:86ea14016b10 | 13 | /////////////////////////// |
danielashercohen | 0:86ea14016b10 | 14 | // I2C address for TDA7419 |
danielashercohen | 0:86ea14016b10 | 15 | #define TDA7419_ADDRESS 0x44 |
danielashercohen | 0:86ea14016b10 | 16 | |
danielashercohen | 0:86ea14016b10 | 17 | #define DEC 10 |
danielashercohen | 0:86ea14016b10 | 18 | #define HEX 16 |
danielashercohen | 0:86ea14016b10 | 19 | #define OCT 8 |
danielashercohen | 0:86ea14016b10 | 20 | #define BIN 2 |
danielashercohen | 0:86ea14016b10 | 21 | |
danielashercohen | 0:86ea14016b10 | 22 | /** TDA7419 PreAmp library |
danielashercohen | 0:86ea14016b10 | 23 | * |
danielashercohen | 0:86ea14016b10 | 24 | * Includes the commands for volume, fader, subwoofer and tone controls |
danielashercohen | 0:86ea14016b10 | 25 | * |
danielashercohen | 0:86ea14016b10 | 26 | */ |
danielashercohen | 0:86ea14016b10 | 27 | class PreampTDA7419 { |
danielashercohen | 0:86ea14016b10 | 28 | public: |
danielashercohen | 0:86ea14016b10 | 29 | |
danielashercohen | 0:86ea14016b10 | 30 | /** Create a new Digole Serial Display interface |
danielashercohen | 0:86ea14016b10 | 31 | * |
danielashercohen | 0:86ea14016b10 | 32 | * @param sda is the pin for I2C SDA |
danielashercohen | 0:86ea14016b10 | 33 | * @param scl is the pin for I2C SCL |
danielashercohen | 0:86ea14016b10 | 34 | * @param address is the 7-bit address (default is 0x27 for the device) |
danielashercohen | 0:86ea14016b10 | 35 | */ |
danielashercohen | 0:86ea14016b10 | 36 | PreampTDA7419(PinName sda, PinName scl); |
danielashercohen | 0:86ea14016b10 | 37 | |
danielashercohen | 0:86ea14016b10 | 38 | /** Sets a new I2C address for the Preamp board (perhaps not useful as it is fixed for the TDA4719) |
danielashercohen | 0:86ea14016b10 | 39 | * @param address is the the new address |
danielashercohen | 0:86ea14016b10 | 40 | */ |
danielashercohen | 0:86ea14016b10 | 41 | void setI2CAddress(uint8_t add); |
danielashercohen | 0:86ea14016b10 | 42 | |
danielashercohen | 0:86ea14016b10 | 43 | /** Set up the TDA7419 to default values that will allow audio to pass through the device |
danielashercohen | 0:86ea14016b10 | 44 | * |
danielashercohen | 0:86ea14016b10 | 45 | */ |
danielashercohen | 0:86ea14016b10 | 46 | void initialize(); |
danielashercohen | 0:86ea14016b10 | 47 | int i2c_write(char command, char value); |
danielashercohen | 0:86ea14016b10 | 48 | |
danielashercohen | 0:86ea14016b10 | 49 | private: |
danielashercohen | 0:86ea14016b10 | 50 | I2C _device; |
danielashercohen | 0:86ea14016b10 | 51 | uint8_t _address; |
danielashercohen | 0:86ea14016b10 | 52 | uint8_t _Comdelay; |
danielashercohen | 0:86ea14016b10 | 53 | |
danielashercohen | 0:86ea14016b10 | 54 | }; |
danielashercohen | 0:86ea14016b10 | 55 | |
danielashercohen | 0:86ea14016b10 | 56 | #endif |
danielashercohen | 0:86ea14016b10 | 57 | |
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