ATmega328P
characterization of actual ATmega328P AVR microcontrollers manufactured on the Atmel® ATmega328P has an on-chip brown-out detection (BOD) circuit for ...
ATmega48A/PA/88A/PA/168A/PA/328/P - megaAVR® Data Sheet
Interrupt Vectors in ATmega328 and ATmega328P. possible an internal or external Brown-Out Detection circuit should be used. A BOD circuit will ensure ...
8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable
25/07/2013 In-Circuit Emulators and Evaluation kits. 2.2. Comparison Between ATmega48P
Characterization of EM faults on ATmega328p
A popular type of non-invasive attack are electromagnetic (EM) attacks [7] that direct intense and short EM pulses to the circuit in order to cause sudden
ATmega48A/PA/88A/PA/168A/PA/328/P
Interrupt Vectors in ATmega328 and ATmega328P. ATmega328P Typical Characteristics . ... and input to the internal clock operating circuit.
AVR® Microcontroller Hardware Design Considerations
Simply the AVR device built-in oscillator circuits can be understood as an inverter-based oscillator circuit
MICROCONTROLLERS - CERN Indico
ATMEGA328 MINIMUM REQUIRED CIRCUIT Atmega328 comes with an internal 8MHz oscillator that can minimize the required circuit to a single battery.
Design of room capacity measurement and body temperature
19/02/2022 ATmega328 Circuit Design with Ultrasonic Sensor. The HCSRO4 ultrasonic sensor is capable of detecting distances without direct touch with high ...
Page
ATmega328P Datasheet Section 13 “I/O-Ports” Each I/O pin has clamping diodes to protect input circuit from undervoltage/overvoltage and ESD conditions.
Printed Circuit Board Design of a Low Power Lightweight and
17/03/2021 ATmega328P 8-bit AVR microcontroller is dedicated in this design of embedded system to execute applications for air quality monitoring.
MICROCONTROLLERS
Maurício Féo
m.feo@cern.chCERN/Nikhef
OBJECTIVES
fUnderstand what are microcontrollers. fWhat are they? fWhat are they used for? fHow do they work? fHow can I use them? fAre they suitable for my project? fExample of applications. fHave an overview of the lab 10.Maurício Féo ² ISOTDAQ 2019
2 3 fCPU fMemories fI/O Interfaces fEtc.Microcontroller
CPUMemory
Input Output
Input Output
Output Input
WHAT IS A MICROCONTROLLER?
Maurício Féo ² ISOTDAQ 2019
Tiny computer
integrated in the same chip.WHAT IS A MICROCONTROLLER?
fTiny computers integrated in a single chip fCPU, Memories and Peripherals in the same chip.Main differences w.r.t. a computer:
fSuitable for embedded applications. fLow cost (ATtiny: ~$0.27) fLow power consumption (ATtiny43U: 0.15uA in Sleep Mode) fReduced clock frequency (~ dozens of MHz) fStand-alone devices (Some require only power to work) fLow level control of your application. 4Maurício Féo ² ISOTDAQ 2019
WHAT ARE THEY USED FOR?
fMonitoring fData Acqusition fControl fApplications where: fHigh performance is not required. fOther devices are inadequate (overkill) due to: fHigh power consumption fneed of external memories and peripherals fcost fetc. 5Maurício Féo ² ISOTDAQ 2019
6WHERE ARE THEY USED?
fEverywhere! fConsumer electronics, home appliances, toys, vehicles, computers, hobbyist projects, etc. fAccording to wikipedia trusted sources, a typical mid-range automobile has as many as 30 or more microcontrollers. fAccording to me an even more trusted source, you have at least one in your pocket right now.Maurício Féo ² ISOTDAQ 2019
Maurício Féo ² ISOTDAQ 2019
WHERE ARE THEY USED?
7 8Maurício Féo ² ISOTDAQ 2019
9Maurício Féo ² ISOTDAQ 2019
AVRARCHITECTURE
(ATMEGA328P)The one used on the lab.
10Maurício Féo ² ISOTDAQ 2019
AVRARCHITECTURE
(ATMEGA328P)The one used on the lab.
11Maurício Féo ² ISOTDAQ 2019
12 AVRARCHITECTURE
(ATMEGA328P)The one used on the lab.
f8 bits architecture f32kB Flash program memory f2kB RAM f2kB EEPROM fMax 20MHz f6 x PWM f6 x ADC channels (10bits) f23 I/O pins f3 timers (2x8 bits 1x16 bits) f1x USART f1x SPI f1x TWI (I2C) f0.6mA/MHzMaurício Féo ² ISOTDAQ 2019
13 AVRARCHITECTURE
(ATMEGA328P)Maurício Féo ² ISOTDAQ 2019
AVR CPU
fHarvard Architecture f8 bits architecture (with 16bits for instructions) fInstructions executed 8 bits by 8 bits fReduced Instruction Set Computing (RISC) (~130 instructions) fUp to 20 MIPS at 20 MHz (1 instruction / clock cycle) 14CPU Program
Memory
DataMemory
Maurício Féo ² ISOTDAQ 2019
15 AVRARCHITECTURE
(ATMEGA328P)Maurício Féo ² ISOTDAQ 2019
GENERAL PURPOSE INPUT/OUTPUT
(GPIO) fPins programmable as Input and Output fRead / Write digital signals fControlled by 3 registers: fDDR (Data Direction Register) fPORT JOHUH \RX RULPH ROHQ LP·V output) fPIN JOHUH \RX UHMG ROHQ LP·V input) 16DDR reg
PORT reg
PIN reg
D A T A B U S PinMaurício Féo ² ISOTDAQ 2019
INTERRUPT
fInterrupts break the program flow to handle some event. fIt may be triggered by: fPin change (rise/fall/toggle) fTimers / Counters fAnalog Comparator fADC reading donequotesdbs_dbs3.pdfusesText_6[PDF] atmega328p datasheet arduino uno
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