Mikroelektronika MIKROE-350 Fiche De Données

284

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

sub procedure Ow_Write(dim par as byte)

Nothing.

Writes one byte of data via the OneWire bus.

Parameters : 

- 

par:

data to be written 

Devices compliant with the Dallas OneWire protocol.

Global variables : 

- 

OW_Bit_Read:

OneWire read line 

- 

OW_Bit_Write:

OneWire write line. 

- 

OW_Bit_Direction:

Direction of the OneWire pin 

must be defined before using this function.

// OneWire pinout
dim OW_Bit_Read as sbit at PINB.B2    
dim OW_Bit_Write as sbit at PORTB.B2
dim OW_Bit_Direction as sbit at DDRB.B2
// end of OneWire pinout

' Send a byte to the One-Wire Bus
Ow_Write(0xCC)