AVR教程 AVR introduction.ppt

1、December 2004,Introduction,Atmel MCU Training - ASIA 2004,2,The beginning,AVR started as a student project / diploma thesis at NTNU (University of Trondheim) In 91/92 the students Alf-Egil Bogen and Vegard Wollan started their idea of designing“a perfect RISC processor” The results where a processor

2、; with assembler and simulator. They named it RISC and it was used in several ASICs by a local ASIC company. But in 1995 the time was right tomarket it as a dedicated product.,3,Atmel Corporation,Atmel Corporation was choicen as partner; due to that they where, and still are, the worlds leading vend

3、or of FLASH and EEPROM memories. What could Atmel offer RISC? Technology RISC could become one of the first microcontrollers with Flash program memory The competitors program memory where mainly EPROM or ROM Semiconductor fabs Atmel had their own fabs Better control on production and technology Esta

4、blished sales force Atmel was established in 1984 and had in 1995 a well founded world wide sales force. Money It is expensive to develop new products.,4,RISC changes name to AVR,Bogen and Wollan makes a deal with Atmel on further development and sales of the RISC Extensive development is put into t

5、he RISC and they change the name to AVR The agreements target is to establish a yearly revenue of AVR products of $100mil within 5years As a part of the agreement they establish Atmel Norway Atmel Norway gets the main responsibility to developand market the AVR microcontrollers The first AVR is rele

6、ased in 1997 AT90S1200 Their goal of $100mil is achieved in 2002,5,AVR Historical Roadmap,2000,1997,2004/2005,FPGA AVR,MEGA AVR,TINY AVR,AVR,AVR,FPGA AVR,MEGA AVR,RF AVR,SECURE AVR,AVR,USB AVR,TINY AVR,LCD AVR,CAN AVR,ASIC AVR,6,AVR Microcontroller Shipments,7,The AVR Product Family,Family ranges fr

7、om 1K to 256K devices All devices based on same AVR architecture All with FLASH program memory One set of development tools Reduces tools cost Only one user interface to learn,Code can be reused on all devices!,8,The Worlds Leading 8-bit Architecture,RISC architecture with CISC instruction set Easy

8、to learn and powerful instruction set for C and Assembly Single cycle execution One instruction per external clock Low power consumption 32 Working Registers All registers are directly connected to ALU Harvard Architecture Simultaneous, fast access to memories,9,AVR Benefits with C,Up to 50% smaller

9、 code size compared to other architectures No code size penalty over assembly, at a fraction of the development time Maintainable code with less engineering cost Write code the way code should be written Reusable code for future projects saves even more development time,10,ANSI C-Code Size Benchmark

10、s,13 Customer Code Applications compiled Averaged and accumulated indexes from all applications All applications count evenly Code Size compared in Kbytes,11,AVR Single-Chip Solution,12,AVR Single-Chip Solution,13,Pin Compatible AVR devices,40/44-pin - XRAM (8051-pinout) mega162 mega8515,40/44-pin -

11、 ADC mega32 mega16 mega8535,28/32-pin mega168 mega88 mega8 mega48 tiny28,20-pin 90S2313 90S1200 tiny2313,8-pin tiny45 tiny25 90S2323 90S2343 tiny15 tiny13 tiny12 tiny11,64-pin mega256 mega128 mega1281 mega64 mega649 mega645 mega641 mega329 mega325 mega169 mega165 90CAN128,100-pin mega2560 mega1280 m

12、ega6410 mega6490 mega6450 mega3290 mega3250,14,AVR Tools Overview,AVR Studio,IAR Systems CodeVision ImageCraft GCC-AVR,AVRISP,In System Programmers,Emulator Platforms,JTAGICE,ICE40/50,STK500,STK501,STK502,Starter Kits,New AVR Device,Compilers,JTAGICE mkII,JTAGICE,JTAGICE mkII,15,AVR Number One!,Shor

13、test Time to Market Highest System Integration Highest CPU Performance Smallest Code Size Most Secure Program Memory Excellent Development tools,This makes the AVR the Worldsbest selling Flash MCU!,16,256K,128K,64K,32K,16K,8K,4K,2K,1K,40K,Roadmap,Tiny15 Tiny13 Tny11,T2313,Mega168,PWM2,Tiny28,Mega16

14、Mega162 Mega8535 Mega8515,Mega32,Mega406,CAN32,Mega644,Mega256 Mega1281 CAN128 Mega128,Mega2560 Mega1280,Mega3290 Mega3250,Mega640,Mega6490 Mega6450,Mega649 mega645 CAN64 Mega641,Mega329 Mega325 Mega169 Mega165,PART,PART,FUTURE PARTS,EXISTING PARTS,Tiny85,Tiny45,Tiny25,Tiny84,Tiny44,Tiny24,Tiny86,Tiny46,Tiny26,PWM1,PWM0,Mega88 Mega8 Mega48,Mega64,17,Need Help?, Selection Guides, Flyers, Datasheets, Application Notes, FAQ, and Errata Sheets 3rd party web sites like www.AVR Atmel and Thir