CCS C Compiler Manual PCB / PCM / PCH

Built-in Functions
i2c_speed( )
Syntax:
Parameters:
Returns:
Function:
Availability:
Requires:
i2c_speed (baud)
i2c_speed (stream, baud)
baud is the number of bits per second.
stream - specify the stream defined in #USE I2C
Nothing.
This function changes the I2c bit rate at run time. This only works if the
hardware I2C module is being used.
All devices.
#USE I2C
Examples:
I2C_Speed (400000);
Example Files:
Also See:
none
i2c_poll, i2c_start, i2c_stop, i2c_slaveaddr, i2c_isr_state, i2c_write,
i2c_read, #USE I2C, I2C Overview
i2c_start( )
Syntax:
Parameters:
Returns:
Function:
i2c_start()
i2c_start(stream)
i2c_start(stream, restart)
stream: specify the stream defined in #USE I2C
restart: 2 – new restart is forced instead of start
1 – normal start is performed
0 (or not specified) – restart is done only if the compiler last encountered a
I2C_START and no I2C_STOP
undefined
Issues a start condition when in the I2C master mode. After the start condition
the clock is held low until I2C_WRITE() is called. If another I2C_start is called
in the same function before an i2c_stop is called, then a special restart
condition is issued. Note that specific I2C protocol depends on the slave
device. The I2C_START function will now accept an optional parameter. If 1
the compiler assumes the bus is in the stopped state. If 2 the compiler treats
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