In this section we will explore how to use the Microchip PIC mostly the 16F628A and the 12F683. While the previous section on the PIC18F2550 was written in C, here I. C Programming & C++ Programming Projects for $30. 8 LED project using PIC16F628A. I will be uploading the code you write to brand new 16F628a chips.

16F628 LED flash program LED flash program for 16F628 Function This program makes a LED flash at 2 Hz. The internal 4 MHz RC-oscillator is used.

Hardware The testboard K4 is set up with reset circuit and a LED. Note: RA4 (pin 3) has an open drain output. It cannot supply power to an external circuit. If a LED is connected to this pin, it must be connected like this: LED cathode to pin 3, LED anode to resistor, resistor to +5V.

I've been suprised by the dearth of examples for programming Microchip PIC® processors in, given there's been continuous effort in improving it's support since about 2001 or so. As such, I am placing the things I've managed to create or find, here. Mostly I've been experimenting with the PIC16f628a processor. Homeworld 2 Complex 9.1.

I like it because it has, among other things: • An internal oscillator that runs at 4MHz or 48KHz -- no more crystal setting madness, and you still get to slow your programs way down when they get uppity! Set it to 9600 BAUD and talk to your computer.

• An extra crystal oscillator designed to run a standard 32Khz watch crystal. • An architecture where every instruction except branches takes one cycle. Given a 4.0000MHz clock, a 'nop' instruction will take 1.0000 microseconds. • It works reliably with my JDM-style programmer, even under Linux®. I've been unable to find any consistent source for the programmer but it's available all over the place and looks exactly like. The JDM is an anyway -- buy it or build your own, the PIC doesn't care.:) Of course you'll have a hard time finding all the fiddly zeners and transistors so personally I think you're better off buying the whole programmer -- it's got a nice ZIF socket, and comes with useful Windows softare too. Note you need a real serial port, the crap they put in laptops doesn't get enough voltage and the counterfeits you get in USB don't have the right control pins.

My workstation is as follows: • JDM-style programmer specified above • A desktop computer running Gentoo Linux, with SDCC and picprog installed. • A nice digital logic trainer breadbord that the local university idiotically threw away. Starcraft 1 Big Game Hunters Map on this page. • An old 2-channel 20MHz analog oscilloscope that the local university idiotically threw away. • A from the era when Radio Shack sold anything but appliances. • A 200-watt pre-ATX computer power supply.

• Parallax serial LCD for debugging output. • PS/2 keyboard with RS232 converter • board, which includes a built-in MAX232 chip and serial connector for easy connecting to computer • A much-tabbed and benoted printout • A. Header Files • -- an include file I made to make it obvious what types are what size.