PIC serial communication tutorial Introduction to Serial communication with PIC16F877 microcontroller In this tutorial we will study the communication component – USART (Universal Synchronous Asynchronous Receiver Transmitter) located within the PIC. It is a universal communication component (Synchronous/Asynchronous), which can be used as transmitter or as receiver. We will look at: • • • • • • • • • We will show how to set USART in order to allow communication between PIC to PIC or between PIC to a personal computer. We will start with the definition of media concepts. There are two options to differentiate when speaking about transmission of information on the transmission lines: • • In order to understand what serial communication is, and emphasize the difference between serial communication and parallel communication, let’s take a look at the following example: We have a multi-bit word, and we want to transmit it from one computer to the second computer.

Using the serial communication: When using the serial communication we transmit the multi-bit word bit after bit (when at any given moment only one bit will pass). Transmitting the word 10011101 using serial communication. Total War Shogun 2 Patch Gamecopyworld Black.

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Using the parallel communication: When using the parallel communication, however, the number of bits will be transmitted at once from one computer to the second computer. Transmitting the word 10011101 using parallel communication. In addition to the serial and parallel communications, there are 2 types of communication we will explore: • • Synchronous communication When using the synchronous communication – the information is transmitted from the transmitter to the receiver: • in sequence • bit after bit • with fixed baud rate • and the clock frequency is transmitted along with the bits That means that the transmitter and the receiver are synchronized between them by the same clock frequency. The clock frequency can be transmitted along with the information, while it is encoded in the information itself, or in many cases there is an additional wire for the clock. Milestone Download Center. This type of communication is faster compare to the asynchronous communication since it is 'constantly transmitting” the information, with no stops.