In this instructable , I 'll show you how to build a PIC 16F917Microcontroller programming circuit. This Microcontroller is a very nice Microcontroller chip form the famous chip manufacturer Microchip.
This Microcontroller is easy to program and powerful to use.
The photo above shows the programmer circuit after completion.
This circuit uses the serial port on the PC . You must use this circuit on a PC having a standard RS-232 serial port.
The USB-to-RS-232 converter will not work as this circuit is power from the +12 volts form the serial port.
If you want to program your Microcontroller using a modern laptop which does NOT contain RS-232 Serial Port, you may want to check this ready made USB programming circuit.
Step 1: Build the Circuit
Here is the programming circuit. It is very simple and easy to build. It is called PicProm
Bill of Material :
40 pin IC Socket Amazon US or eBay
I got it from that website.
The website contains the programming circuit and the programming software.
The circuit and the software supports many Microcontroller chips other than PIC 16F917. You may try it with other chips.
Just build the circuit on a copper board or on a bread board.
Start welding the components together as shown on the schematics.
Step 2: Test Your Circuit
Now , after you 've completed your circuit . You must start to test it with a programming software.
The circuit would be working fine if you could download any sample Firmware on your chip.
I made a flasher program that flashes an LED using the Microcontroller.
The LED flasher program in embedded systems world is comparable to " Hello World " in PC programming world.
The flasher program is written in C language and compiled with HiTech-PIC software.
The simulation model is made with Proteus 7 simulation software.
The Firmware is saved in the flasher.HEX file.
If you could start the PicProm software and download the flasher.HEX file on the Microcontroller chip using the circuit , then you 've just completed the circuit successfully.
You may proceed to the next step if you like to see the Firmware running on the Microcontroller.
Step 3: Flasher Program
Here is the flasher program and circuit to test the Microcontroller.
The circuit consists of the Microcontroller chip , battery and an LED.
The Microcontroller uses the internal oscillator by the default setting in the loader software.
You can see a post about this project on my blog :
You can find more posts about Microcontroller projects on my blog : Embedded Egypt
Thank you for reading my instructable.
You can also find my book Learn By Making on Amazon website.
If you like this instructable you can support us by many ways:
1. Leave comments stating your point of view about this article.
2. Buy our book on Amazon Learn By Making.
3. Click on links of our sponsors without adding any extra cost on you if you make purchase from them. Actually, many of these offers are totally free. This means that you can enjoy something for free and still support our blog to keep posting useful stuff.
This is the well-know Amazon Kindle platform. If you sign up for the free reader from Amazon to read any book, we get commission. There are many useful book for free on Amazon Kindle. Even you can find best sellers offered for free on Kindle format. The best part is you can have the application on any platform. You can even read any book without installing any application by using Amazon Cloud-Reader on your browser.
You can join Amazon Kindle for 30 days free to have access to many paid book for free. You can cancel you subscription anytime.
The Amazon Prime is a special paid service from Amazon that offers good promotions and one-day free shipment for Amazon Shoppers. You can try this service for 30 days. You can cancel you subscription anytime.
Audible is the audio books website from Amazon. Many Kindle books are sold on Audible. You can try this service for free and get 2 free book. You can cancel you subscription anytime.
If you have a new baby borne or expecting one, you can create your free baby registry to easily save products and get offers and promotions on baby requirements.
4. Visit our new website outatime.tech.
Thank you for visiting our instructable.