pic programmer:
What is a PIC ?. Well, like other microcontrollers, it is a small computer with processor, ROM, RAM, and all the I / O circuitry on a single chip. I will focus my projects on PIC that are inexpensive on the market. The chips that I will use will be 16C84, 16F83 and 16F84. These chips are around $ 6.00. Because the ROM inside the chips are electrically erasable, even ICPs can be reprogrammed several times for different types of project. All information stored in the PIC will be held for more than 40 years, without food, until it is electrically erased. Unlike other microcontrollers, the PIC does not require quartz crystals or resonators for their clock, you can simply use a resistor and a capacitor as oscillating elements.
The project presented here will give you the ability to program a PIC from your parallel printer port on your PC. To program a PIC is relatively simple. A standard supply voltage of 5 volts DC is connected to pin 14 and ground is connected to pin 5. Now bring the voltage on pin 4 to between 12 and 14 volts DC. The data is clocked in one bit at a time by pins 13 and 12. The data itself is sent to the spindle 13. Once the bit is ready, the voltage on pin 12 is raised to 5 volts for the least 0.1 microseconds before being lowered back to earth. The data that were sent to the chip may return out of the chip on the pin 13 to ensure that it accurately. The best way to learn to use this circuit is to actually write a program for the pic and burn it in chip. The first project will be the project of the month in September. So lets get the programmer builds and lets start making plans for the PIC.
What is a PIC ?. Well, like other microcontrollers, it is a small computer with processor, ROM, RAM, and all the I / O circuitry on a single chip. I will focus my projects on PIC that are inexpensive on the market. The chips that I will use will be 16C84, 16F83 and 16F84. These chips are around $ 6.00. Because the ROM inside the chips are electrically erasable, even ICPs can be reprogrammed several times for different types of project. All information stored in the PIC will be held for more than 40 years, without food, until it is electrically erased. Unlike other microcontrollers, the PIC does not require quartz crystals or resonators for their clock, you can simply use a resistor and a capacitor as oscillating elements.
The project presented here will give you the ability to program a PIC from your parallel printer port on your PC. To program a PIC is relatively simple. A standard supply voltage of 5 volts DC is connected to pin 14 and ground is connected to pin 5. Now bring the voltage on pin 4 to between 12 and 14 volts DC. The data is clocked in one bit at a time by pins 13 and 12. The data itself is sent to the spindle 13. Once the bit is ready, the voltage on pin 12 is raised to 5 volts for the least 0.1 microseconds before being lowered back to earth. The data that were sent to the chip may return out of the chip on the pin 13 to ensure that it accurately. The best way to learn to use this circuit is to actually write a program for the pic and burn it in chip. The first project will be the project of the month in September. So lets get the programmer builds and lets start making plans for the PIC.