What is SPI PIC microcontroller?

SPI stands for Serial Peripheral Interface. Like UART and I2C, It is used to transfer data simply and quickly from one device to another. We can use it to transmit and receive 8-bit data synchronous at the same time. …

How do you use SPI protocol?

Serial Peripheral Interface (SPI) is an interface bus commonly used to send data between microcontrollers and small peripherals such as shift registers, sensors, and SD cards. It uses separate clock and data lines, along with a select line to choose the device you wish to talk to.

How many slaves can be connected to master pic?

This means the number of pins required on the master will increase as the number of connected slaves increases. It is typical for a SPI master to control two to three slaves and not more.

How to communicate between two PIC microcontrollers using SPI?

You can also try simulating a program to communicate with two PIC microcontrollers using SPI protocol. You have to program one PIC as the master and the other as the slave. All the required header files for this purpose are given in the header file already.

What is the SPI communication bus protocol?

SPI communication BUS PROTOCOL FOR PIC MICROCONTROLLER: SPI is a synchronous protocol which allows transmission of data from a master device to one or more slave devices and from slave devices to master device over short distances at high speeds (MHz). Data is exchanged between these devices.

How do I simulate an SPI program using the pic16f877a?

Since there is only one SPI device in the simulation we are not using the SS pin and when not used it should be grounded as shown above. Just load the hex file into the PIC16F877A microcontroller and click on the play button to simulate our program.

What is data transfer in SPI communication?

SPI communication DATA TRANSFER. In connecting a device with an SPI bus to a microcontroller, we use the MCU as a master device and the SPI device acts as slave. The clock signal is provided by the master to provide synchronization. MCU generate the SCLK which is fed to the SCLK pin of the SPI device.