Mikroelektronika MIKROE-350 Fiche De Données

TWI full master MSSP module is available with a number of AVR MCU models. mikroBasic PRO
for AVR provides library which supports the master TWI mode.

- TWI_Init 
- TWI_Busy 
- TWI_Start 
- TWI_Stop 
- TWI_Read 
- TWI_Write 
- TWI_Status 
- TWI_Close 

465

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 1

sub procedure TWI_Init(dim clock as longword)

Nothing.

Initializes TWI with desired 

clock

(refer to device data sheet for correct values

in respect with Fosc). Needs to be called before using other functions of TWI
Library.

You don’t need to configure ports manually for using the module; library will take
care of the initialization.

Library requires MSSP module on PORTB or PORTC.

TWI_Init(100000)

sub function TWI_Busy() as byte

Returns 0 if TWI start sequnce is finished, 1 if TWI start sequnce is not finished.

Signalizes the status of TWI bus.

TWI must be configured before using this function. See TWI_Init.

if (TWI_Busy = 1) 

...