prolific usb to serial comm port software reader card gsm

Prolific usb to serial comm port software reader card gsm how to#
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Prolific usb to serial comm port software reader card gsm download#

A terminal program is a utility tool running on PC that helps you view text data coming from the serial port and also send data to the port. To interact with this demo running on your PIC development board. USARTWriteLine( 'This tests that both Rx and Tx are working OK') ĭata=USARTReadByte() //Wait until a byte is available //Now Send the same byte but surrounded by //like if user type 'a' we will send USARTWriteLine( 'Any Character you type will be returned by MCU') USARTWriteLine( 'Please type on PC Keyboard. USARTWriteString( 'An Integer with fixed field width(5): ') USARTWriteInt(- 24, 255) //No fixed field lenght i.e. USARTWriteString( 'A negative integer: ') USARTWriteInt( 99, 255) //No fixed field lenght i.e. USARTWriteString( 'A positive integer: ') USARTWriteLine( ' -By eXtreme Electronics, India') IF YOU WANT TO USE THEM IN COMMERCIAL APPLICATION PLEASE WRITE TO THE AUTHOR. IT IS INTENDED TO BE USED FOR HOBBY, LEARNING AND EDUCATIONAL PURPOSE ONLY. THE LIBRARY, NOR ANY PART OF IT CAN BE USED IN COMMERCIAL APPLICATIONS. BAUD RATE:57600 Bits per Second CRYSTAL Frequency: 20MHz Target Chip: PIC18F4520 Target Compiler: HI-TECH C For PIC18 () Project: MPLAP Project File Author: Avinash Gupta Copyright (c) 2008-2009 eXtreme Electronics, India NOTICE - NO PART OF THIS WORK CAN BE COPIED, DISTRIBUTED OR PUBLISHED WITHOUT A WRITTEN PERMISSION FROM EXTREME ELECTRONICS INDIA. Explains simple reading and writing of data without using Interrupts. The Hex file can be burnt to the PIC18F4520 MCU using any Will succeed and you will get a HEX file ready to burn into you MCU. ToĬompile and build this project select Rebuild from Now copy/paste the following program in this new file and save it. The project folder you just created and select the file.Īfter that create a new file using menu option File->NewĪnd save it by name usart_test.c. In Project window and select 'Add Files …' command. To add anyįile to 'Source Files' section right click on 'Source Files' Now add the 'usart.c' file to the 'Source Open MPLAB and create a new project as described here.

Prolific usb to serial comm port software reader card gsm download#

You can get those file from the download link at World project with pic microcontroller part-iĬreate a new folder say usart_test in your hard disk.Ĭopy following files to it.

Prolific usb to serial comm port software reader card gsm how to#

It discuss in details how to obtain, setup and use these tools. If you are new to these tools please read the following article. Program in HI-TECH C and MPLAB for PIC18F4520Ĭ. Explained in more detailed way here -> RS232 The level converter: Converts between RS232 to TTL and.C12 and C6 which are 0.1uF (Marking 104) should be placedĪs closed to the MCU as possible, they provide extra immunity to noise. RESET switch is used to reset the MCU so its startĮxecuting from the beginning of the program. The ICSP connector is used to download programs via a PIC MCU core: The heart of this unit is PIC18F4520 chip (you.Which will indicate that power supply unit is working OK. For convenience I have also included a LED Even if by mistake you supply wrong polarity the thing wont blowĪway. I have used a 1N4007 diode to protect this unit from reverse The function of this unit is to provide a regulated 5v supply Power Supply unit : This part is required in all project.I am explaining in short the parts and their functions. Is the level converter which built around the MAX232 The circuit is common for many other application too. The above image show the schematic of circuit you will need to make. When you have enough knowledge you can replace the Terminal with your own PC This configuration is the simplest setup to test and understand RS232 communication. So any text send by the MCU will be visible on Terminal Screen andĪny keypress you make on the PC keyboard will be send over RS232 to your MCU. A terminal program is used to send and receive On PC we will run a terminal program like In this tutorial we will demonstrate a link betweenĪ PIC18F4520 MCU and a standard PC. RS232 can be used to communicate between a variety of devices. So a total of three wire are required for communication. One more common wire (called GND) is required between two separateĬircuit to enable current flow. Since data is transferredīIT by BIT so we need only a single wire two send data and an another one to That means that data is transferred BIT by BIT at a time.

Two device using a standard called RS232. New to this I clarify that the motive is to send and receive data between Hello Friends! In this tutorial I will discuss how to practically do a simpleĬommunication over RS232 interface.