- HOW TO PROGRAM PIC16F628A USING PICKIT2 PDF
- HOW TO PROGRAM PIC16F628A USING PICKIT2 SOFTWARE
- HOW TO PROGRAM PIC16F628A USING PICKIT2 CODE
- HOW TO PROGRAM PIC16F628A USING PICKIT2 SERIES
This is provided by IC2, a 78M05 3-terminal 5 volt regulator. The input voltage can be anywhere form 9 to 12 volts but the PIC requires a precisely controlled 5 volt supply. If you are building the circuit on a breadboard or stripboard you should ensure it is located close to the PICs Vdd connection (pin 14 ). (see here)Ĭapacitor C3 is used to decouple the 5 volt power supply rail.
HOW TO PROGRAM PIC16F628A USING PICKIT2 CODE
However, you will also need to make a change to the source code before programming the PIC so it knows to use it’s internal oscillator. If you are using the PIC 16F628A you can omit these three components and use the PICs internal RC oscillator. This generate a stable 4Mhz clock which is used by the PIC to control the timing of the microcontroller core. For all other 5mm LEDs the 270ohm resistors will be fine.Ĭrystal Q1 and capacitors C1 and C2 connect to the oscillator circuit inside the PIC. If you decide to use high brightness blue, green or white 5mm LEDs you may need to change these from 270ohms to 100ohms. The value of the resistors has been selected to be safe rather provide maximum brightness. Resistors R1 thru R12 limit the current through LED1 – LED12 to a safe level that won’t damage the PICs I/O ports or LEDs. The program that runs on this chip controls the LEDs attached to the output port pins.
HOW TO PROGRAM PIC16F628A USING PICKIT2 SOFTWARE
This can be either a PIC16F84A or PIC16F628A as software code is provided for either device. The heart of the LED chaser is the PIC microcontroller, IC1. You must use the 16F84A or 16F628A parts. Please note that the 16F84 and 16F628 without the ‘A’ suffixare not suitable for this project. I’ve also written a version for the PIC16F628A which is a pin compatible replacement for the 16F84A and I would recommend that if you intend to develop your interest in PIC microcontrollers you start using this device rather than the 16F84A. This project has been put together for anyone starting with their first PIC and the source code is heavily commented with references to the PIC datasheets and the MPASM assembler user guide.Īlthough the PIC 16F84A is really obsolete and I wouldn’t normally do a project using it, this chip is used extensively throughout education and for many people this will still be their first step into the world of PICs. The circuit has been constructed on a PCB but can easily be built on strip-board, or a solderless breadboard. A single illuminated LED ‘walks’ left and right in a repeating sequence, similar to the effect seen on KITT, the car in the Knight Rider TV series.įully commented source code and programmer ready HEX files are provided for the PIC 16F84A and 16F628A at the bottom of this page. This simple circuit functions as a 12 LED chaser. Online Schematic and Circuit Diagram Tool.Microcontrollers and other Microchip devices Search tool.Find debuggers, programmers, compilers, adapters, socket modules and other accessories for your product.
HOW TO PROGRAM PIC16F628A USING PICKIT2 PDF
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HOW TO PROGRAM PIC16F628A USING PICKIT2 SERIES
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