Embedded Systems (1) - Hochschule Düsseldorf · PDF fileEmbedded Systems I ... Embedded Systems 1 22.11.2016 HS Düsseldorf (c) U ... XMEGA Training: Analog to Digital Converter (ADC)

Embedded Systems 1 22.11.2016

HS Dsseldorf (c) U.Schaarschmidt 1

Embedded Systems I

Ulrich Schaarschmidt

FH Dsseldorf, WS 2016/17

Themen am 22.11.2016: 8/16 Bit Mikrocontroller von Atmel XMEGA

neue Baugruppen (z.B. ADC, DMA, DAC) anhand von

Beispielen (1. Teil)

Bitte OHP-/Tafel-Notizen selbst mitschreiben! ES1_16_V7

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Literaturhinweise

Inneltek, nn.:

Atmel AVR XMEGA

Workshop am 05.11.09

Atmel, nn.:

Atmel Traning: XMEGA Basics

Workshop am 05.11.09

Atmel, nn.:

Atmel Training DMAC

Workshop am 05.11.09

Atmel, nn.:

Atmel Traning: XMEGA Event System Hands-on

Workshop am 05.11.09

Atmel, nn.:

AVR_AVR32_ Quick Reference Guide.pdf

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Literaturhinweise

Atmel, nn.:

Atmel AVR XMEGA A Manual

Atmel Datenblatt

Atmel, nn.: AVR XMEGA (TM ) PMIC Introduction

XMEGA Training: Programmable Multilevel Interrupt Controller

Atmel, nn.:

Getting Started With the XMEGA Event System

Atmel AN AVR1001

Atmel, nn.:

AVR XMEGA Analog to Digital Converter Introduction

XMEGA Training: Analog to Digital Converter (ADC)

Atmel, nn.: XMEGA-ADC-Hands-on.pdf

Quellenhinweise

Cullen, Gerard; Editor, Staff of Geist Technology:

Low-Cost Web Servers (Web-Enable Almost Anything for Almost

Nothing)

www.geisttek.com

www.atmel.com/dyn/products/datasheets.asp?family_id=682

http://de.wikipedia.org/wiki/Atmel_AVR32

http://www.avrfreaks.net/wiki/

http://www.avrtv.com/2007/06/29/avrtv-special-002/

http://myavr.de/

http://www.t2-project.org/architectures/avr32/?architectures/avr32.html

Tanenbaum, Andrew S.: Computerarchitektur; 5. Aufl. 2006 Pearson

Studium

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http://www.geisttek.com/http://www.atmel.com/dyn/products/datasheets.asp?family_id=682http://de.wikipedia.org/wiki/Atmel_AVR32http://www.avrfreaks.net/wiki/http://www.avrtv.com/2007/06/29/avrtv-special-002/http://www.avrtv.com/2007/06/29/avrtv-special-002/http://www.avrtv.com/2007/06/29/avrtv-special-002/http://www.avrtv.com/2007/06/29/avrtv-special-002/http://www.avrtv.com/2007/06/29/avrtv-special-002/http://myavr.de/http://www.t2-project.org/architectures/avr32/?architectures/avr32.htmlhttp://www.t2-project.org/architectures/avr32/?architectures/avr32.htmlhttp://www.t2-project.org/architectures/avr32/?architectures/avr32.html

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Spezielle Atmel - Websites

http://www.atmel.com/avr

Selection Guides, Data Sheets and Errata Sheets

Application Notes and Reference Library

Atmel and Third Party ToolsS

Software, User Guides

Consultants, Distributors and Atmel Representatives

http://support.atmel.no

Official Atmel MCU technical support center with FAQ and email notification

service

http://www.avrtv.com

Official AVR podcasts

http://www.avrfreaks.net

AVR Experts Discussion Forum, Selection Guides for Tools and Products, Third

Party Tools Information, FAQs

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Xplain evaluation board

ATxmega128A1

Switches (8x)

LEDs (8x)

32kHz RTC crystal

NTC resistor

Speaker

Potmeter

64Mbit SDRAM

4Mbit Dataflash

AT90USB1287

Gateway to USB

JTAG connector

USB-powered

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AVR XMEGA Key Benefits

picoPower technology for ultra low power consumption

True 1.6 volt operation and CPU speed up to 32 MHz

Event System and DMA Controller

High speed, high resolution 12-bit ADC and DAC

Crypto engine, Timers/Counters and fast

communication interfaces

Accurate and flexible Clock System with dynamic clock

switching

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Einige Key Benefits

herausgehoben und erlutert

Pico Power wird auf den folgenden Folien

erlutert.

DMA -> Direct Memory Access direkter

Zugriff auf das Speichersystem OHNE die

CPU zu belasten (d.h., dass die CPU

schlafen (Energie sparen) oder etwas

ganz anderes machen/rechnen kann).

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DMA direct memory access

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DMA-Controller

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[ http://www.atmel.com/products/microcontrollers/avr/xmega_technical_details.aspx ]

http://www.atmel.com/products/microcontrollers/avr/xmega_technical_details.aspxhttp://www.atmel.com/products/microcontrollers/avr/xmega_technical_details.aspxhttp://www.atmel.com/products/microcontrollers/avr/xmega_technical_details.aspx

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Xmega - Event-System

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[AVR1005: Getting started with XMEGA]

Event-System

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8 Event Routing Channels

CPU and DMA independent operation

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picoPower - Best MCU power budget

Atmels picoPower technology reduces

power consumption in both sleep and

active mode. With picoPower technology

the embedded designer can reduce the

applications power consumption while

maintaining performance.

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True 1.6 Volt Operation

AVR XMEGA offers true 1.6 Volt

operation. All functions including ADC,

DAC, Flash- and EEPROM memories are

all operating down to 1.6V. This allows

safe operation directly from a 1.8V 10%

power supply. It also enables deeper

battery discharge to increase battery life.

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Minimized Leakage Current Ultra

Low Power 32 kHz Crystal Oscillator

AVR XMEGA leakage current is only 100

nA while still maintaining full RAM and

register retention. This reduces power

consumption for applications spending

most time in sleep mode.

AVR XMEGAs Real Time Counter

consumes only 500 nA while running from

a 32.768 kHz Crystal Oscillator.

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AVR XMEGA

TM Demo

SRAM

Buffer

Timer Trigger

Event System Event Channel 0 Event Channel 1

... Event Channel 7

PORT

DMA

Trigger

Source

A timer triggers a DMA transfer from a SRAM buffer to

a port in an endless loop without CPU load.

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Stromverbrauch durch differenzierte

Sleep-Modes reduzieren

Minimized Leakage Current

AVR XMEGA leakage current is only 100 nA while still maintaining

full RAM and register retention. This reduces power consumption

for applications spending most time in sleep mode.

Ultra Low Power 32 kHz Crystal Oscillator

AVR XMEGAs Real Time Counter consumes only 500 nA while

running from a 32.768 kHz Crystal Oscillator.

Sleep modes

XMEGA has five different sleep modes to turn off unused modules

and reduce the power consumption in the application. Many

sleep modes makes it easy to find the perfect fit for the application.

The granularity is further enhanced by the innovative Power

Reduction Register technology.

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Stromverbrauch durch differenzierte

Sleep-Modes reduzieren

in idle sleep mode all peripherals operate while the CPU is

sleeping to reduce the power consumption. with up to 50%, while

event handling, communication and data input/output still run.

in power-save mode, XMEGA uses 650nA to run the Real Time

Counter and have full SRAM and register retention offering industry

leading low power numbers. Enabling Watchdog and Brown Out

adds only 1uA.

in power-down mode, XMEGA uses only 100nA with SRAM and

register retetion, and 5us wake-up time from pin change on any i/O

pin and TWi address match.

Standby and extended standby sleep modes are identical to

power-down and power-save, except the external oscillator is kept

running to reduce wake-up time.

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XMEGA Betriebsmodi

zum Energiesparen

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XMEGA Betriebsmodi

zum Energiesparen

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XMEGA Betriebsmodi

zum Energiesparen

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