Design and Implementation of an SPI to I2C Bridge for Seamless Communication and Interoperability Between Devices

The SPI to I2C bridge serves as a communication interface, enabling smooth data exchange between SPI and I2C devices. Acting as an intermediary, this bridge facilitates the conversion of data frames and protocol translations between the two distinct serial communication protocols. The bridge consists of three key components: a SPI master module, a protocol conversion unit (PCU), and an I2C slave module. The SPI master module, typically implemented using a controller, acts as the sender, while the I2C slave module represents the receiver, typically peripheral devices. The PCU plays a crucial role in converting SPI signals and data formats into their I2C counterparts, ensuring seamless compatibility and communication between the devices. To validate the bridge’s performance and functionality, simulation and synthesis are conducted using appropriate software tools like EDA Playground and Verilog. By employing the SPI to I2C bridge, seamless communication and interoperability between SPI master devices and I2C slave devices are achieved. This solution offers an efficient and versatile approach for integrating peripherals that utilize different serial communication protocols.