Constructor comm.I2C

I2C(int address)

Throws:

I2C(int address, boolean slave_mode)

Throws:

I2C(int address, int frequency)

Throws:

I2C(int address, int frequency, boolean slave_mode)

Throws:

_INSERT_METHOD_SIGNATURE_HERE_

The iLCD panelJoC board might be used as I2C-master or I2C-slave device. An instance of this class represents either an externel slave device with the iLCD-controllerJoC board automatically set as master or the iLCD-controllerJoC board as slave device used with an external master.

Parameter	Range	Description
addr	0 ... 127	target slave device address
[slave_mode]	true/false	I2C-mode of iLCD controllerJoC (default: false)

If slave_mode is omitted or false, the addr parameter is used to set up the address for a specific I2C slave device to be addressed by the iLCD-controllerJoC board in master mode.

If slave_mode is true, the iLCD-controllerJoC board will be used in slave mode controlled by an external master via the address addr.

slave_mode = false: The iLCD-controllerJoC board has address 0 and is used as I2C-master (a different master-address can be set with open()).
slave_mode = true: The iLCD-controllerJoC board has the specified address and is used as I2C-slave.
A default frequency of 100kHz is automatically assigned.
Some addresses are used for general purpose of the I2C bus (see I²C bus specification.pdf).

Parameter	Range	Description
addr	0 ... 127	target slave device address
freq	0 ... 400000	I2C bus frequency in Hz
[slave_mode]	true/false	I2C-mode of iLCD controllerJoC (default: false)

This constructor is used to adjust the frequency for the I2C-bus.

If slave_mode is omitted or false, the addr parameter is used to set up the address for a specific I2C slave device to be addressed by the iLCD-controllerJoC board in master mode.

If slave_mode is true, the iLCD-controllerJoC board will be used in slave mode controlled by an external master via the address addr.

I2C has to be enabled in the iLCD project. To do this select the corresponding checkbox in the iLCD Manager XE on the Settings Tab under Hardware Settings.
slave_mode = false: The iLCD-controllerJoC board has address 0 and is used as I2C-master(a different master-address can be set with open()).
slave_mode = true: The iLCD-controllerJoC board has the specified address and is used as I2C-slave.
Some addresses are used for general purpose of the I2C bus (see I²C bus specification.pdf).

The following code shows how to create an instance of the I2C class.

import comm.I2C;

...

I2C i2c;

...

i2c = new I2C(0x40);

The comm package must be imported in order to use the I2C class. A new variable with the I2C data type must be created in the next step. Afterwards, a new instance of the I2C class is created with an automatically assigned frequnecy of 100kHz.

Public Constructor I2C