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Is it too old for their electronic projects 16F84?
If you do not know what a 16F84 is then you've never heard of Maxim (R) – a company that creates powerful independent microcontrollers. A microcontroller is simply a very small team, but unlike all systems standard is contained in the device itself. No external devices such as RAM, EPROM, E / S.
If you need an easy way to create your own projects while microcontrollers Mount the bill because:
- They are very small (some have 8 pins, and more Children have 5).
- They have many internal peripherals.
- They are based on reprogrammable memory Interior
- They have built in timers.
- Internal RAM.
In short, they are ideal for control of their projects – all you have to do is program them.
This is a enormous benefits over discrete designs do, because if you make a mistake in a discreet design, you have to debug and re-wire. With a microcontroller you just can reprogram the device in the circuit (after the simulation code to understand the first error).
Even better you can do advanced projects as the internal devices work fairly quick example you can create a 50MHz frequency counter, without external components (except the screen).
Languages
In fact, you can program in many different languages, but most popular is the machine code. The reason for its popularity is the fact that Microchip (R) has created all the necessary tools to develop a machine code program, free of charge for you to find many examples of assembly code on the Internet.
Personally I do not like coding in assembly machines (though you can use if necessary, eg for speed), because you need much time compared to using a high-level language. In fact, I'd say 10 times more with assembler. Also assembly language is totally unstructured, which means that it is very difficult to maintain in other words, if you want to add a module, then you probably revise the whole code while in a high language code-level areas are protected to avoid mistakes.
Maxim has published hundreds of different devices (now greatly improved over the 16F84) but the fundamental operation of each is based on the original design even if only studied the original 16F84 (OK there was a 16C84) has a good idea of how all range devices operate.
This is the great power of the chip (R) Devices to say that learning something by using a single device and add to your knowledge the whole range – for example, to program a 12F675, 16F84, 16F88 or 16F877 you need to know about CPSI because this interface is shared across the spectrum. This means that your curve Learning is very small.
Of course there are devices that are specialized professional development as the driving pins with a dedicated LCD, but only has to focus on standard devices (good examples are in the 12F675, 16F88, 16F628 and 16F877).
Peripherals
In fact, there are about 15 devices internal standard for the modern world (16F range), while the device has a 16F84.
Therefore, I think the 16F84 has had a good race, but now it's time to say goodbye to it. Other reasons for this are that a quarter of the size of the memory of a 16F88 and now costs about 5 more times.
Note: The 16F628 and 16F88 to 16F84 borrow even have the same pinout so it will have no problem if you already is used to a 16F84.
Abstract
The 16F84 is probably too old for the serious as some new design (compatible to ago), a device that allows you to create projects much more capable.
John Main’s website provides microcontroller resources and free projects which are fully documented and include schematics and source code.
You can find example of a 50MHz Seven segment here: Frequency counter circuit. This uses a 16F877 as the microcontroller.
Vist this site for more: http://www.best-microcontroller-projects.com
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