Wednesday, September 24, 2014

Free Download Electronic Workbench 5.12 Full Version

When you are electronic student, maybe you will not foreign again with Electronic Workbench software or called EWB software. We think that this software very popular in electronic student because many electronic university or collage using Electronic Workbench to create electronic circuit and then simulate it easily.

When you using Electronic Workbench software to help your electronic project, you can draw electronic circuit schematic project using many tools that provided by EWB. You can choose many component that provided to draw your electronic project.
When you want to draw the schematic circuit, you can firstly choose components that needed one by one. And then you can adjust your component according your electronic schematic. You can connected your components one by one according the circuit easily. and then you can continue to simulate your project.

When you want to know how your project will work, you can choose many tools like AFG, Frequency Generator, etc. You can connected many measurement tool to your electronic circuit that drawing and then you can simulate your project to know the working of your circuit schematic.And it is will help you before you implemented your project to real project.

Friday, March 7, 2014

Memory Organization of PIC16F877A

The memory organization of a PIC16F877A chip is divided into three sections. They are -  Program Memory
  • Data Memory and
  • Data EEPROM
Program Memory is a data storage system. It is used to store program which is written by the
user.  The program counter executes these stored commands one by one. PIC16F877A device
have 13 bit wide program counter and it is capable of addressing 8K×14 bit program memory
space. This memory is used to store the programs that are written primarily. This memory is
also called Flash Memory.

Data Memory contains a special register like Special Function Register (SFR) and General
Purpose Register (GPR). Data memory is called Random Access Memory (RAM). The stored
variable of program in data memory is deleted after turning off the microcontroller. These two
memories have separate data buses, which make the access to each one of them very easy.

Electrically Erasable Programmable Read-Only Memory is called EEPROM. It is user
modifiable read only memory (ROM) that can be erased and reprogrammed repeatedly through
the application of higher than normal electrical voltage. EEPROM has a limited life that is the
number of hundreds or thousands of times it can be reprogrammed. The life of the EEPROM
can be an important design consideration. A special form of EEPROM is flash memory which
uses normal PC voltages for erasing and reprogramming.