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atmega128 ATMEGA 128 (AVR) is a microcontroller that has been equipped for 4Kbyte in its chip EEPROM. EEPROM is separate from the AVR flash memory, and can be written, read per byte. To be able to access the EEPROM it needs to manage registers and fuse bit. To prevent errors in the writing and reading of EEPROM cultivated power supply that is used quite stable. When reading the EEPROM microcontroller stops during the four clock cycles before doing the next command, and to write EEPROM microcontroller’s clock stopped during the second cycle before doing the next command.
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Minimum System ATMega 8535,16,32 Minimum system ATmega 8535/16/32 schematic circuit that is integrated with RS232 serial communication. Minimum System is a microcontroller circuit that used to work. This circuit usually consists of: 1. Crystal = to generate pulse 2. a series reset = to do the “Restart” work microcontroller Components that can be used as input and output such as: 1. display = LCD, dot matrix, seven segment, etc. 2. input = keypad, push button, etc. Schematics above are the minimum system that has been integrated with RS232 serial communication. with the RS232, then the minimum system is ready to be used to communicate between the microcontroller to the computer, or microcontroller to microcontroller.
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- avr atmega
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