Mikroelektronika MIKROE-442 데이터 시트

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mikoBasic PRO for dsPIC30/33 and PIC24

MikroElektronika

The I²C full master I²C module is available with a number of the dsPIC30/33 and PIC24 MCU models. The mikroBasic 

PRO for dsPIC30/33 and PIC24 provides a library which supports the master I²C mode.

Important: 

- I²C library routines require you to specify the module you want to use. To select the desired I²C module, simply  

  change the letter 

x in the routine prototype for a number from 1 to 3. 

- Number of I²C modules per MCU differs from chip to chip. Please, read the appropriate datasheet before utilizing  

  this library. 

Library Routines

 

- I2Cx_Init 

 

- I2Cx_Start 

 

- I2Cx_Restart 

 

- I2Cx_Is_Idle 

 

- I2Cx_Read 

 

- I2Cx_Write 

 

- I2Cx_Stop 

I2Cx_Init

sub procedure I2Cx_Init(dim scl as longint)

Description Configures and initializes the desired I²C module with default settings.

This function enables the I²C module by setting the I2CEN bit. The rest of the bits in I²C control register 

remains unchanged. Default initialization (after reset) of I²C module is: 

- continue operation in IDLE mode 

- IPMI mode disabled 

- 7-bit slave address 

- slew rate control enabled 

- general call address disabled 

- software or receive clock stretching disabled 

Parameters - 

scl

: requested serial clock rate. 

Nothing.

MCU with the I²C module.

I2C1_Init(100000)

Refer to the MCU’s datasheet for correct values of the scl in respect with Fosc.

I²C  library  routines  require  you  to  specify  the  module  you  want  to  use.  To  select  the  desired  I²C 

module, simply change the letter 

x in the routine prototype for a number from 1 to 3.

Number of I²C modules per MCU differs from chip to chip. Please, read the appropriate datasheet 

before utilizing this library.