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How are interrupt pins used in ATmega328P controller?
Most of the electrical functions required an interrupt system to operate like AC dimmer, etc. ATmega328P gives the support of 2 interrupts within the controller which can be used to get the attention of the CPU at any instant. Interrupt pins of ATmega328P are given below:
Can a FTDI board be connected to an Atmel ATmega328P?
Following the schematic and Fritzing, connect the ATmega328P with bootloader and FTDI board. We have selected an FTDI board that uses an Atmel ATmega8u2 with Arduino firmware loaded, meaning to an Arduino IDE, it appears as an Arduino Uno. Search for the board using the previous steps and upload the blink sketch to the ATmega328P.
How to program ATmega328P using Arduino Uno board?
You can also program ATMEGA328P using ARDUINO UNO board. Run the programmer software and choose the appropriate hex file. Burn the HEX file of written program in ATMEGA328P flash memory using this program. Disconnect the programmer, connect the appropriate peripherals for the controller and get the system started.
What’s the clock speed of the ATmega328P ICSP?
Following the schematic and Fritzing, connect the ICSP to the breadboard. The ICSP tries to program at a clock speed of 375kHz, too fast for a brand new ATmega328P. Our ICSP has a jumper connector for “slow-clock”, which slows the programming speed to 8kHz. Connect the “slow-clock” jumper, followed by connecting the USB of the ICSP to the computer.
How are the ADC channels used in ATmega328P?
In ATmega328P there are 6 ADC channels that can be used to convert the analog signal to digital. The analog converter needs to be activated first by its power pin (AVCC). The ADC channels use power supply voltage as a reference to differentiate the different levels of the analog signal.
How does the Arduino Nano work with ATmega328?
Select “Arduino Duemilanove or Nano w/ ATmega328” from the Tools > Board menu (according to the microcontroller on your board). The ATmega328 on the Arduino Nano comes preburned with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol.
What kind of memory does an ATmega328 have?
The ATmega328 has 32 KB, (also with 2 KB used for the bootloader. The ATmega328 has 2 KB of SRAM and 1 KB of EEPROM. Each of the 14 digital pins on the Nano can be used as an input or output, using pinMode (), digitalWrite (), and digitalRead () functions. They operate at 5 volts.