Mikroelektronika MIKROE-742 데이터 시트

353

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

procedure Soft_I2C_Start();

Nothing.

Description Determines if the I

2

C bus is free and issues START signal.

Software I

2

C must be configured before using this function. See Soft_I2C_Init routine.

// Issue START signal

Soft_I2C_Start();

function Soft_I2C_Read(ack: word): byte;

One byte from the Slave.

Reads one byte from the slave.

Parameters : 

- 

ack

: acknowledge signal parameter. If the 

ack==0

not acknowledge signal will 

be sent after reading, otherwise the acknowledge signal will be sent. 

Soft I

2

C must be configured before using this function. See Soft_I2C_Init routine.

Also, START signal needs to be issued in order to use this function. See
Soft_I2C_Start routine.

var take : word;
...
// Read data and send the not_acknowledge signal

take := Soft_I2C_Read(0);