User manual

340
mikoC PRO for PIC32
MikroElektronika
I2Cx_Restart
Prototype
void I2Cx_Restart();
Description Issues repeated START signal.
Parameters None.
Returns Nothing.
Requires MCU with at least one I²C module.
Used I²C module must be initialized before using this function. See I2Cx_Init routine.
Example
// Issue RESTART signal
I2C1_Restart();
Notes - 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 5.
- Number of I²C modules per MCU differs from chip to chip. Please, read the appropriate datasheet
before utilizing this library.
I2Cx_Is_Idle
Prototype
unsigned I2Cx_Is_Idle();
Description Waits for the I²C bus to become free. This is a blocking function.
Parameters None.
Returns - 0 if I²C bus is free.
- 1 if I²C bus is not free.
Requires MCU with at least one I²C module.
Used I²C module must be initialized before using this function. See I2Cx_Init routine.
Example
unsigned char data_;
...
if !(I2C1_Is_Idle)
I2C1_Write(data_);
...
Notes - 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 5.
- Number of I²C modules per MCU differs from chip to chip. Please, read the appropriate datasheet
before utilizing this library.