Mikroelektronika MIKROE-350 Fiche De Données

The mikroBasic PRO for AVR provides routines for implementing Software I˛C com-
munication. These routines are hardware independent and can be used with any
MCU. The Software I˛C library enables you to use MCU as Master in I˛C communi-
cation. Multi-master mode is not supported.

Note: This library implements time-based activities, so interrupts need to be dis-
abled when using Software I˛C.

Note: All Software I˛C Library functions are blocking-call functions (they are waiting
for I˛C clock line to become logical one).

Note: The pins used for Software I˛C communication should be connected to the
pull-up resistors. Turning off the LEDs connected to these pins may also be
required.

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- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

dim
Soft_I2C_Scl_Output
as sbit sfr external

Soft I2C Clock output line.

dim
Soft_I2C_Scl_Output
as sbit at PORTC.B0

dim
Soft_I2C_Sda_Output
as sbit sfr external

Soft I2C Data output line.

dim
Soft_I2C_Sda_Output
as sbit at PORTC.B1

dim
Soft_I2C_Scl_Input 

Soft I2C Clock input line.

dim
Soft_I2C_Scl_Input 

sbit at PINC.B0

dim
Soft_I2C_Sda_Input 

Soft I2C Data input line.

dim
Soft_I2C_Sda_Input 

sbit at PINC.B1

dim
Soft_I2C_Scl_Pin_Dire
ction 

Direction of the Soft I2C
Clock pin.

dim
Soft_I2C_Scl_Pin_Dire
ction 

DDRC.B0

dim
Soft_I2C_Sda_Pin_Dire
ction 

Direction of the Soft I2C
Data pin.

dim
Soft_I2C_Sda_Pin_Dire
ction 

DDRC.B1