I2C Controller Read

Output port to read data from an I2C peripheral device. The size of the data that the port emits is based on the Data size (N) parameter.

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32

Output port to display error status. For more information, see Output error status.

Dependencies

This port appears only when you select the Output error status parameter.

Data Types: uint8

Specify the I2C module on the Arduino^® hardware to communicate with sensor peripherals. For more information on the Arduino pin mapping and modules that hardware boards support, see Pin Mapping for Arduino Timer Independent Blocks.

Enter the I2C peripheral device address from which you want to read data. You can specify this address in hexadecimal format hex2dec(), for example, hex2dec(‘10').

Select the byte ordering that your I2C peripheral supports.

The two byte ordering options are:

Select this check box to enable reading data from a specific register on the I2C peripheral device.

When you clear this parameter, the Send NACK at the end of data transfer and Remove stop bit at the end of data transfer parameters are displayed. Using these parameters, you can modify the read operation according to your requirements.

Enter the peripheral device register address from which you want to read the data.

Specify this address as an integer or in hexadecimal format by using hex2dec(), for example, hex2dec(‘10’).

Dependencies

This parameter is enabled only when you select the Enable register access parameter.

Select the data type to read from I2C peripheral device.

Enter the data size that you want to read from the I2C peripheral device for the selected data type.

Select this option to display the error status during data transmission.

When you select the Output error status parameter, the block configures an output port. The port on the block is labeled as Status, indicating that the block outputs the status of the read operation at the output port.

The block outputs the status as a uint8 value. Each value corresponds to a data transfer status.

Specify how often this block reads the data from the I2C peripheral. Enter a value greater than zero.