User manual

Example Projects
© 2006 Microchip Technology Inc. DS51557C-page 39
2.3.8 Project 8: PC Interface Using the USART
Communicating with the serial port on a PC is a very useful tool. Applications include
a piece of test equipment that needs to interface to a PC or a design that uses the serial
port during development to configure the device. In this project, the PIC16F917 will use
the USART to receive commands from a PC application. Another notable feature to this
project is that the firmware implements an auto-baud routine to sync up with the
application.
Objectives
1. Use the provided PIC
®
MCU Communicator GUI to manipulate the I/O on the
PIC16F917.
2. Understand what an auto-baud routine entails.
Applicable Technical Documents
Asynchronous Communications with the PICmicro
®
USART Application Note, AN774
(DS00774)
Jumper Configuration
Make sure there are no jumpers or shunts on JP2.
RD7 (J10) to D0 (J14)
Connect a serial cable between the board and PC
FIGURE 2-16: PROJECT 8: JUMPER DIAGRAM