Mikroelektronika MIKROE-738 Datenbogen

mikroC PRO for PIC32

MikroElektronika

391

Expander_Write_PortAB

Expander_Set_DirectionPortA

void Expander_Write_PortAB(char ModuleAddress, unsigned int Data_);

Description The function writes word to Port Expander’s ports.
Parameters - 

ModuleAddress

: Port Expander hardware address, see schematic at the bottom of this page 

- 

Data

: data to be written. Data to be written to PortA are passed in Data’s higher byte. Data to be 

written to PortB are passed in 

Data

’s lower byte 

Nothing.

Port Expander must be initialized. See Expander_Init.

Port Expander’s PortA and PortB should be configured as outputs. See Expander_Set_DirectionPortA, 

Expander_Set_DirectionPortB and Expander_Set_DirectionPortAB routines.

...

Expander_Set_DirectionPortAB(0,0x0000);        // set expander’s porta and 

...

Expander_Write_PortAB(0, 0xAA55);

None.

void Expander_Set_DirectionPortA(char ModuleAddress, char Data_);

Description The function sets Port Expander’s PortA direction.
Parameters - 

ModuleAddress

: Port Expander hardware address, see schematic at the bottom of this page 

- 

Data

: data to be written to the PortA direction register. Each bit corresponds to the appropriate pin of 

the PortA register. Set bit designates corresponding pin as input. Cleared bit designates corresponding 

pin as output. 

Nothing.

Port Expander must be initialized. See Expander_Init.

Expander_Set_DirectionPortA(0,0x00);

None.