I2C Master Protocol Implementation in VHDL for Data Acquisition from CDC
Pavan Kumar K1, Daniel Raju Paga2, V. Bagyaveereswaran3
1Pavankumar K, Department of Control and Automation, SELECT, Vellore Institute of Technology, Vellore, Tamil Nadu-632014, India.
2Daniel Raju Paga, Department of Control and Automation, SELECT, Vellore Institute of Technology, Vellore, Tamil Nadu-632014, India.
3Prof. V. Bagyaveereswaran, Department of Control and Automation, SELECT, Vellore Institute of Technology, Vellore, Tamil Nadu-632014, India
Manuscript received on February 09, 2016. | Revised Manuscript received on February 11, 2016. | Manuscript published on March 05, 2016. | PP: 43-49 | Volume-6 Issue-1, March 2016. | Retrieval Number: A2802036116/2016©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Communication between devices plays an important role in data acquisition. Proper selection of communication method or protocols is an important task. For any process, hardware and software components are used to perform many tasks like controlling the process and actuators, data conversion, data acquisition etc. A large amount of hardware or software components cannot be used for data acquisition. A proper and efficient approach is intended to be made such that they are used in least possible numbers, also keeping in mind that the different existing devices are compatible without any major modifications. This paper presents an approach to acquire data through I2C protocol in an efficient way. The AD7746 which is capacitance to digital convertor uses I2C protocol for providing the digital data. The digitized information is acquired from the AD7746 by a FPGA which is designed using modular flow method.
Keywords: AD7746, FPGA, I2C protocol, Master, FSM, Serialdata communication.