wimbeaumont Project / DevInterfaces

This are general defs and base class interfaces. ( DACInterface, I2CInterface) to be used with I2C devices

Dependents:   MCP23009tst AT30TSE752TST MCP4728setaddrProg mbedSerialInterface_talkback2 ... more

The DevInterfaces class is used for a more general support of a number of I2C devices.

For the moment this is MCP4728 Quad DAC.

The idea is to write a libs for the I2C devices (and perhaps later SPI , ... devices) not restricted to a certain hardware platform.

So there is the I2CInterface. This is a ( not pure) virtual class. A pointer to this class is used for the I2C device lib (like the MCP4728 class https://developer.mbed.org/users/wbeaumont/code/MCP4728/ ) to communicate with the I2C interface. The I2C interface is kept simple as possible. So it has to be applied for "tested environments". I2C Bus timeouts etc. are hard to debug with such a simple interface. This kind of interface is also not suitable for optimal performance. The user has to take care of issues of blocking devices, parallel processes etc. This can be dealt with in the implementation of the I2CInterface class

The aim of this project is to generate code for these devices on different platforms without doing the painstaking work of looking up all the register details.

There is an implementation of the I2CInterface for the MBED , tested with the FRDM-KL05Z platform. https://developer.mbed.org/users/wbeaumont/code/I2Cinterfaces/

A very simple application on a MBED can be found in https://developer.mbed.org/users/wbeaumont/code/MCP4728test/

DACInterface.h@1:5672673314f9, 2016-01-08 (annotated)

Committer:
wbeaumont
Date:
Fri Jan 08 11:56:44 2016 +0000
Revision:
1:5672673314f9
Parent:
0:da1fb7dd363f 
virtual  I2C interface and some other classes for I2C devices

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wbeaumont 0:da1fb7dd363f 1 #ifndef __DACINTERFACE__
wbeaumont 0:da1fb7dd363f 2 #define __DACINTERFACE__
wbeaumont 0:da1fb7dd363f 3
wbeaumont 0:da1fb7dd363f 4
wbeaumont 1:5672673314f9 5 #define VERSION_DACINTERFACE_HDR "0.40"
wbeaumont 0:da1fb7dd363f 6 #include "getVersion.h"
wbeaumont 0:da1fb7dd363f 7
wbeaumont 0:da1fb7dd363f 8 class DACInterface: public virtual getVersion{
wbeaumont 0:da1fb7dd363f 9 private:
wbeaumont 0:da1fb7dd363f 10
wbeaumont 0:da1fb7dd363f 11
wbeaumont 0:da1fb7dd363f 12 public :
wbeaumont 0:da1fb7dd363f 13 DACInterface():getVersion( VERSION_DACINTERFACE_HDR ,VERSION_DACINTERFACE_HDR , __TIME__, __DATE__){}; //Create an I2C Master interface
wbeaumont 0:da1fb7dd363f 14
wbeaumont 0:da1fb7dd363f 15 virtual int setDACvalue(int dacvalue, int ch=0){ return 0;};
wbeaumont 0:da1fb7dd363f 16 virtual int getDACvalue (int& dacvalue , int ch=0){return 0;};
wbeaumont 1:5672673314f9 17 virtual int setVoltage (float voltage, int ch=0){ return 0;};
wbeaumont 1:5672673314f9 18 virtual int getVoltage(float &voltage, int ch=0){return 0;};
wbeaumont 1:5672673314f9 19 virtual int update() {return 0;}; // general update by example readout all registers in the device to the class storage.
wbeaumont 0:da1fb7dd363f 20
wbeaumont 0:da1fb7dd363f 21 };
wbeaumont 0:da1fb7dd363f 22
wbeaumont 0:da1fb7dd363f 23 #endif