How is SPI implemented in a PIC microcontroller?

How is SPI implemented in a PIC microcontroller?

SPI bus interface connection is incorporated into many devices like ADC, DAC and EEPROM .SPI is implemented in the PIC microcontrollers by a hardware module called the Synchronous Serial Port or the Master Synchronous Serial Port. This module is built into many PIC microcontrollers.

Can a SPI module support I I2C communication?

This module also supports I I2C communication that is a two-wire communication. It supports SPI serial communication between two or more devices at a high speed and is reasonably easy to implement. Unlike I2C, we do not use slave address in serial peripheral interface communication.

How does SPI slave mode work on PIC18F452?

This code uses an SPI master mode of PIC18F452 microcontroller. It will write data to external EEPROM which acts as an SPI slave device. Firstly, it will write data to EEPROM. Secondly, it will read data from the same locations and display its value on the seven segment display.

What can a SPI interface be used for?

Usually used to interface Flash Memories, ADC, DAC, RTC, LCD, SDcards, and much more. The SPI was originally developed by Motorola back in the 80s to provide full-duplex serial communication to be used in embedded systems applications.

Which is the SPI Register on the pic18f4550?

The major registers associated with the SPI communication in the PIC18F4550 are SSPBUF, SSPSTAT and SSPCON1 register. The Synchronous Serial Port Buffer (SSPBUF) register is the register which holds the SPI data which needed to be shifted out to the slave or which has been shifted in from the slave.

How to enable SPI on pic18f14k22 MSSP peripheral?

After initializing the I/O ports next we have to enable the PIC18F14K22 MSSP peripheral by setting the SSPEN (Synchronous Serial Port Enable) bit to logical “ 1 ” and selecting the SPI master clock frequency by setting the SSPM<3:0> (Synchronous Serial Port Mode) bits to maximum Fosc/4 (4 MHz) in the SSPCON1 register.

How does the Serial Peripheral Interface ( SPI ) work?

The Serial Peripheral Interface (SPI) is a high speed, synchronous, serial communication standard. This communication protocol is basically a Master – Slave implementation where the master device controls the clock based on which the slave devices operate. The master communicates with a slave or a number of slaves in a system through the SPI bus.