fw i2cwrite

I2cWrite()

Write data to the specified I2C bus.

Syntax

I2cWrite(unsigned char channel, unsigned char slaveAddress, unsigned char eofConfig, unsigned char numBytes, unsigned char* sendBuffer);

channel
The I2C master channel to open.

slaveAddress
The 7-bit slave address of the I2C device to write to. The R/W bit will be set automatically.

eofConfig
End of frame configuration:

• 0 - EOF_STOP - Stop
• 1 - EOF_RESTART - Stop and restart
• 2 - EOF_RESTART_NOSTOP - Restart with no stop
• 3 - EOF_NOSTOP - No stop

numBytes
The number of bytes to write to the I2C channel.

sendBuffer
A pointer to the first element in a byte array which contains the data to write to the I2C bus.

Returns

int status

Related Links

• I2cOpenMaster()

• I2cSetSpeed()

• I2cWrite()

• I2cRead()

• I2cClose()

• Firmware Reference