Implementation I2C Controller by Using FPGA and Applied for 12 bits ADC

摘要

This paper presents the implementation of an I^{2C communication controller. The objective is to solve the communication problems between the FPGA and electronic devices, which are communication I2C, by mentioning the I2C controller design by using finite state machine. From the functions that are designed by using the VHDL language and simulate and perform error checking. After that, a process of synthesis to generate the rtl circuits and programs into the FPGA Spartan 6 using Xilinx Platform cable II. Finally, we have built two experimental board, first a s t he F PGA X C6SLX9 development board. Second, the board includes an electronic device that has the I2C communication include 8-bits ADC, 12-bits ADC, 12-bits DAC, RTC, etc. In this paper, the I2C controller tried to 12-bits ADC (MCP-3221). It can be used to interface to 12-bits ADC effectively.}