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AVR at a glance

Any AVR microcontroller is an 8-bit computer in a chip designed and manufactured by ATMEL Corporation. It has some RAM and ROM (Flash) as well. There is also an EEPROM memory. Including AVR core CPU all these are more than enough to say that it is a small computer where you can execute programs stored in Flash memory, run them while operating data in SRAM and storing some constant values in EEPROM. Comparing to the real computer that sits on your table you can say that AVR core is a CPU like AMD or Pentium. Flash memory would be your hard drive where programs are stored, RAM is RAM nothing to add there. EEPROM probably can be compared to some media device like CDRW. Anyway, this is only similitude in… Continue reading

The Simplest AVR Controlled Clock

You’re always having the determination, which you would like to build yourself a simple and easy to navigate Atmel AVR controlled clock? However, your dream seems doesn’t become a reality, due to the many factors? Well, it wasn’t too late as long as you have the urge here… Oh, for those of you that don’t know about the definition of “AVR”, it is a Harvard architecture 8-bit RISC, which have been fully modified and developed by Atmel in 1996. The AVR has been known as the first ever microcontroller that being used in the on-chip flash memory for the program storage purposes. The types of programs can be One-Time Programmable ROM, EPROM, or EEPROM. There are four basic families for the AVRs and there are: tinyAVRs, which equipped with 1-8… Continue reading