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2013-02-15T19:14:51Z

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Admin at 18:24, 11 February 2013

2013-02-11T18:24:45Z

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== (**COPIED FROM ENGLISH PAGE**) === Action =

Initializes the SCL and SDA pins.

 

 

= Syntax =

I2CINIT

I2CINIT #const

 

 

 

= Remarks =

By default the SCL and SDA pins are in the right state when you reset the chip. Both the PORT and the DDR bits are set to 0 in that case.

When you need to change the DDR and/or PORT bits you can use I2CINIT to bring the pins in the proper state again.

 

For the XMEGA which has multiple TWI interfaces you can use a channel to specify the TWI interface otherwise the default TWIC will be used.

 

 

= ASM =

The I2C routines are located in i2c.lib. _i2c_init is called.

 

 

= See also =

[[I2CSEND]] , [[I2CSTART]] , [[I2CSTOP]] , [[I2CRBYTE]] , [[I2CWBYTE]] , [[I2C-TWI|I2C TWI Library for using TWI]]

 

 

= Example =

 <source lang="bascomavr">
Config Sda = Portb.5
Config Scl = Portb.7
I2cinit

Dim X As Byte , Slave As Byte
X = 0 'reset variable
Slave = &H40 'slave address of a PCF 8574 I/O IC
I2creceive Slave , X 'get the value
Print X 'print it
</source> 
= Example XMEGA =

 <source lang="bascomavr">
Open "twic" For Binary As #4 ' or use TWID,TWIE oR TWIF
Config TwiC = 100000 'CONFIG TWI will ENABLE the TWI master interface
I2cinit #4
</source> {{Languages}}

[[Category:BASCOM Language Reference/de]]

I2CINIT/de - Revision history

Admin: 1 revision

Admin at 18:24, 11 February 2013