fw i2cread

I2cRead()

Read data from the I2C bus.

Syntax

I2cRead(unsigned char channel, unsigned char slaveAddress, unsigned char eofConfig, unsigned char numBytes, unsigned int timeout, unsigned char* recBuffer);

channel
The I2C master channel to read from.

slaveAddress
The slave address of the I2C device to read from.

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 read from the I2C device.

timeout
The maximum amount of time in mS to wait for all data bytes.

recBuffer
A pointer to an unsigned byte array to store the incoming data from the I2C device. This array must be at least numBytes in size.

Returns

int status

Related Links

• I2cOpenMaster()

• I2cSetSpeed()

• I2cWrite()

• I2cRead()

• I2cClose()

• Firmware Reference