Summary of Contents for AWC APP-III
- Page 1 APP-III PIC Development Kit © 2003 by AWC 310 Ivy Glen League City, TX 77573 (281) 334-4341 http://www.al-williams.com/awce.htm V1.1 30 Aug 2003...
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Page 3: Table Of Contents
Table of Contents Overview..................1 If You Need Help ................. 1 What Else You'll Need ..............1 Features..................2 Assembly ..................2 Programming................3 Internals ..................5 Resources ..................6 Figure 1. Circuit Diagram............. 7 Connections to JP1 ............... 8 Connection to ICSP Header ............ -
Page 5: Overview
Web page for updates at www.al- williams.com/awce. What Else You'll Need In addition to the APP-III kit, you'll also need a few other easy to obtain items: • A solderless breadboard • An unregulated power supply (DC between 8 and 13V) or a 5V regulated power supply. -
Page 6: Features
The two-pin header you install will allow you to select programming mode or execution mode by placing (or removing) a jumper on these two pins. With the jumper in place, the APP-III will allow programming (via the download software). When the jumper is not present, the APP-III will run your program. -
Page 7: Programming
One of these is the test program that is running on the APP-III right now. To test the programming feature of the APP-III, replace the shorting cap on the ICSP header and press the RESET button. The LED should quit blinking (because the PIC is in program mode and not running your program). - Page 8 here's the command to program 1st.HEX (downloaded from the web site): app3 com1 1st.HEX If you want to verify that the device was programmed correctly you can issue this command: app3 -v com1 1st.HEX To run the new program, remove the jumper cap and press the reset button.
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Page 9: Internals
The APP-II is actually a PIC18F252 that operates at 20MHz. You can find documentation for this device at the Microchip Web site. However, the APP-III environment makes programming a little different. In particular: • Your program starts at location 0x200. -
Page 10: Resources
After programming, you'd return the circuit to its original configuration. Be careful not to short pin 7 directly to ground if you are using it as an output since this could damage the APP-III! Resources http://www.al-williams.com/app3.htm – Examples and include files. -
Page 11: Figure 1. Circuit Diagram
Figure 1. Circuit Diagram... -
Page 12: Connections To Jp1
Connections to JP1 Pin 1 of JP1 is closest to the JP1 marking on the board: JP1 pin Signal IC1 Pin Ground Connection to ICSP Header You can use the ICSP header to connect to an in circuit programmer or in circuit debugger. Pin 1 is the pin closest to the DB9 (J1).
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