I2C, or Inter-Integrated Circuit, is a chip-to-chip interface supporting two-wire communication. You can open connections with individual chips and read and write over the connections. Create the interface object using thei2c
功能,并使用fread
andFWRITE.
functions for communication.
To use the I2C interface, you need to have either a Total Phase Aardvark host adaptor or a NI USB-845x adaptor board installed. SeeConfiguring I2C Communicationfor more details.
i2c |
Create I2C object |
清除 |
Remove instrument objects fromMATLABworkspace |
delete |
Remove instrument objects from memory |
disp |
Display instrument object summary information |
fclose |
Disconnect interface object from instrument |
fopen |
Connect interface object to instrument |
fread |
Read binary data from instrument |
FWRITE. |
Write binary data to instrument |
get |
Instrument object properties |
instrhwinfo |
Information about available hardware |
methods |
Class method names and descriptions |
record |
记录数据和事件信息;n to file |
set |
Configure or display instrument object properties |
You need to have either a Total Phase Aardvark host adapter or a NI USB-845x adapter board installed to use thei2c
interface.
Transmitting Data Over the I2C Interface
通过I2C接口进行通信涉及适配器发现,连接,通信和清理。
Install the NI-845x I2C/SPI Interface Support Package
For the Instrument Control Toolbox™ I2C and SPI interfaces, you can use either a Total Phase Aardvark host adaptor or an NI-845x adaptor.
Instrument Control Toolbox I2C support lets you open connections with individual chips and to read and write over the connections to individual chips.
I2C Interface Usage Requirements and Guidelines
These tips and guidelines apply to the use of the I2C interface.
Instrument Control Toolbox Properties
These properties are available in the toolbox.
Try these tips if you have problems using the toolbox with the I2C interface. Includes information about I2C supported platforms, adaptor requirements, and configuration and connection.