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跟着信息技术与网络技术的飞速发展,信息交互运用事务给人类日子带来更多的便利,信息终端表现出巨大的市场潜力。可是因为终端用户环境不同,用户信息交互方法可能不同,现在常用的有IP方法、FSK方法以及无线通讯方法等。为了能够前进终端市场竞争力,减少体系开发本钱投入,通讯模块与终端程序独立规划是较为志向的解决方案。本文选用ATmega48芯片及CMX865芯片结束FSK通讯模块,根据此模块,用户与事务途径之间进行FSK信息交互,相对于终端来说就是简略的串口通讯。
1 SYS68K/ISIO-1FP I/O Force介绍
ATmega48是根据AVR增强型RISC(精简指令集)结构的、低功耗的8位CMOS微操控器。微操控用具有可操控的上电复位和可编程的掉电检测电路、经过标定的片内RC振荡器、片表里18个连续源和5种休眠方法。因为其先进的指令集以及单时钟周期指令执行时间,ATmega48的数据吞吐率高达1 MIPS/MHz,作业速度比一般的单片机高出10倍,然后能够缓解体系在功耗和处理速度之间的仇视。
其片内集成了4 KB的体系内可编程Flash、256字节的EEPROM、512字节的SRAM。其外设具有可编程的串行USART接口、可作业于主机/从机方法的SPI串行接口;存在2个具有独立预分频器和比较器功用的8位守时/计数器和1个具有预分频器、比较功用和捕捉功用的16位守时/计数器、具有独立片内振荡器的可编程看门狗守时器等。ATmega48/88/168芯片硬件电路能够兼容,能够根据软件实践需求灵敏挑选AVR芯片,地便利体系的开发与研发。
2 SYS68K/ISIO-1FP I/O Force简介
CMX865是CML公司新出的一款DTMF编/解码器/FSK调制解调器复合IC芯片,它选用单个高速串行总线操控,与大多数串行接口兼容。CMX865的主要特征是:
◆ 供电电压2.7~5.5 V,低功耗操作方法;
◆ 支撑V.23、Bell202 FSK 1200 bps编码/解码;
◆ 集成高可靠性DTMF编码器/解码器;
◆ 集成振铃检测功用,支撑语音勘探功用。
3 SYS68K/ISIO-1FP I/O Force硬件规划
图1为串口转FSK通讯模块电路。体系主要以AVR单片机ATmega48芯片和CMX865调制/解调芯片为硬件架构,ATmega48芯片运用CBUS总线对CMX865芯片进行操控操作,结束FSK通讯。CMX865芯片的IRQN终端与CPU芯片的外部连续0(INT0)相连,保证软件能够选用连续方法接纳/发送FSK数据。CMX865芯片的时钟信号、片选信号、照顾应对数据信号、接纳操控数据信号别离与ATmega48芯片的一般I/O接口引脚相连,CPU能够经过模仿口线方法对CMX865芯片进行操控。
Force SPARC/CPU-10/12?8-1251 SPARC/CPU-10/12?8-1251H1 VME
Force SPARC CPU-5VT VME Board
FORCE SPARC CPU-3CE/16-40-1 P/N 501015 Network #B89
Force Sparc CPU-3CE/16 VME Processor Board
Force Sparc CPU-10/32 VME SBC computer board
Force Sparc CPU-2CE/16 VME SBC computer board with GPIB
Force CPCI-550 sparc/cpci-550
Force SPARC CPU-2s/32 VME SI 600-11573-201
FORCE SPARC CPU-5V CPU-5V/64-100-2 VME MAINFRAME. CARD
Force SPARC CPU-3CE/16 Network 501015 Board #F15
FORCE SPARC CPU-3CE/32-40-1 P/N 501016 Network #B90
FORCE SPARC CPU-5V CPU-5V/64-100-2 VME MAINFRAME. CARD
Force Sparc CPU-20VT VME SBC computer board
Mercury Themis Force VME Sparc CPU Military Avionics
Force Sparc/CPU-10/12?8-51-1 B
FORCE SPARC CPU-3CE/8 NETWORK
FORCE SPARC CPU-10/9U BOARD
Force SPARC CPU-3CE/16-40-1 501015 Network Board #B61
MOTOROLA FORCE SPARC CPU-5CE/16 VME SBUS MAINFRAME. CARD
Force SPARC CPU-3CE/16 Network 501015 Board #F16
Force Sparc/mem-50 213802 RevAA Memory Stick #F37
Force SPARC CPCI-523G 256-300-4-2 CompactPCI Card
Force Sparc/CPU-10//6?4-40-1
CPU-2CE/16
CPU-3CE/16
CPU-3CE/32-40-1
CPU-3CE/64-40-1
CPU-5CE/16-85-2
CPU-5CE/32-85-2
CPU-5CE/64-85-2
CPU-5TE/16-85-0
CPU-5V/64-100-2
CPU-5V/64-110-2
IOBP-10
CPU-8VT/64-170-2
CPU-20 Series
CPU-30BE
CPU-30ZBE
CPU-33XB
CPU-33XN
CPU-40B/16
CPU-40B/16-01
CPU-40B/16-02
CPU-40B/4
CPU-50/128-333-4-2
CPU-50/256-333-4-2
CPU-50GT/256-300-4-2
CPU-50GT/256-333-4-2
CPU-50T/256-300-4-2
CPU-50T/256-333-4-2
SCSI-BP4
CPU-60D/32/C3
6604E/16-200
CPCI-731
CPCI-761
IOBP-731
PMC860-40-E1-75
SCSI-BP4
IOBP-731
IOBP-10
IBC-20-1
SYS68K/PIO-1
CPCI-910
CPU-5V/64-110-2/C13
Force SYS68K CPU-30Lite
FORCE SYS68K DRAM VME BOARD MVME MAINFRAME. MOTOROLA
Force SYS68K/CPU-6 880-12537-101.A?2 LAM 810-17034-300-1
FORCE SYS68K SRAM-4A VME BOARD MVME MAINFRAME. MOTOROLA
Force SYS68K/CPU-6VB P/N 100611 LAM reseach 17034-3-C
FORCE SYS68K ISCSI-1 VME BOARD MVME MAINFRAME. MOTOROLA
FORCE COMPUTERS SYS68K CPU-6A
FORCE SYS68K CPU-2VF VME SINGLE BOARD COMPUTER MOTOROLA
FORCE SYS68K CPU-30BE/16 VME BOARD
Force SYS68K/SIO-2 P/N 310004
Force SYS68K CPU-33B/4 VME Board
Force SYS68K/SASI-1
FORCE CONTROL BOARD SYS68K ISI0-2/C2 (P/N 220062)
FORCE COMPUTER MODEL SYS68K SASI-1441 LAM REV A
FORCE COMPUTER CPU BOARD SYS68K CPU-1B NEW-NO BOX
Force SYS68K CPU30ZBE CPU-30ZBE CPU Module VMEbus VME
FORCE SYS68K CPU BOARD 310004 WORKING
Force SYS68K/CPU-33B/?4 VME Board CAT#: 510098
FORCE COMPUTERS SYS68K/CPU-6VA USPP SYS68KCPU6VA CIRCUIT CARD
BUS TRONIC FORCE SYS68K MAINFRAME. BOARDS NICE LOT
Force SYS68K/ISIO-2 I/O Controller Board PN: 310031
Force SYS68K ISIO-1 Serial I/O Board
BioRad SYS68K CPU-30ZBE FORCE 25MHZ VME CPU BOARD
FORCE COMPUTER VME BOARD MODEL SYS68K REV C
FORCE SYS68K ISIO-2 MODULE ASSY
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
Force SYS68K/CPU-33B/?4 VME Board CAT#: 510098 PN: 600-1
Force SYS68K/CPU-30BE SYS68K/CPU-30BE?/16/C2 VME Module
Force SYS68K/CPU-33B/?4 VME Board CAT#: 510098
Force SYS68K/ISIO-1FP I/O Controller Dual Board w Cable
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
FORCE PROCESSOR BOARD Model SYS68K ASCU-2
Force SYS68K/ISIO-2 I/O Controller Board PN: 310031
Force SPARC/CPU-10/12?8-1251 SPARC/CPU-10/12?8-1251H1 VME
A64520 Force Computers Sparc CPU-24VTF Board
Force CPCI-550 sparc/cpci-550
Force Sparc CPU-3CE/16 VME Processor Board
Force SPARC CPU-2s/32 VME SI 600-11573-201
FORCE SPARC CPU-5V CPU-5V/64-100-2 VME MAINFRAME. CARD
Force Sparc/CPU-10/12?8-51-1
FORCE SPARC CPU-5V CPU-5V/64-100-2 VME MAINFRAME. CARD
Force SPARC CPU-3CE/16-40-1 501015 Network Board #B61
FORCE SPARC CPU-3CE/16-40-1 P/N 501015 Network #B89
Mercury Themis Force VME Sparc CPU Military Avionics
FORCE SPARC CPU-3CE/32-40-1 P/N 501016 Network #B90
FORCE SPARC CPU-10/9U BOARD
FORCE SPARC CPU-3CE/32-40-1 P/N 00157-001 Network #B91
MOTOROLA FORCE SPARC CPU-5CE/16 VME SBUS MAINFRAME. CARD
FORCE SPARC CPU-3CE/8 NETWORK
Force SPARC CPCI-523G 256-300-4-2 CompactPCI Card
Force Sparc/CPU-10//6?4-40-1
Force SYS68K/CPU-6 880-12537-101.A?2 LAM 810-17034-300-1
FORCE SYS68K CPU-2VF VME SINGLE BOARD COMPUTER MOTOROLA
Force SYS68K/CPU-6VB P/N 100611 LAM reseach 17034-3-C
FORCE SYS68K DRAM VME BOARD MVME MAINFRAME. MOTOROLA
Force SYS68K CPU-30Lite
FORCE SYS68K SRAM-4A VME BOARD MVME MAINFRAME. MOTOROLA
FORCE COMPUTERS SYS68K CPU-6A
FORCE SYS68K CPU-30BE/16 VME BOARD
FORCE SYS68K ISCSI-1 VME BOARD MVME MAINFRAME. MOTOROLA
Force SYS68K ISIO-1 Serial I/O Board
FORCE COMPUTER CPU BOARD SYS68K CPU-1B NEW-NO BOX
Force SYS68K CPU-33B/4 VME Board
Force SYS68K/SIO-2 P/N 310004
Force SYS68K/SASI-1
FORCE SYS68K ISIO-2 MODULE ASSY
FORCE CONTROL BOARD SYS68K ISI0-2/C2 (P/N 220062)
FORCE COMPUTER VME BOARD MODEL SYS68K REV C
FORCE COMPUTERS SYS68K/CPU-6VA USPP SYS68KCPU6VA
FORCE COMPUTER MODEL SYS68K SASI-1441 LAM REV A B
FORCE SYS68K CPU BOARD 310004 WORKING
BUS TRONIC FORCE SYS68K MAINFRAME. BOARDS NICE LOT
Force SYS68K/CPU-33B/?4 VME Board CAT#: 510098 PN: 600-1
FORCE SYS68K/CPU-30BE?/8 REMOVED FROM BIORAD SYSTEM
Force SYS68K/ISIO-1FP I/O Controller Dual Board w Cable
Force SYS68K/CPU-30BE SYS68K/CPU-30BE?/16/C2 VME Module
Force SYS68K/CPU-33B/?4 VME Board CAT#: 510098
Force SYS68K/ISIO-2 I/O Controller Board PN: 310031
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
Force SYS68K/ISIO-2 I/O Controller Board PN: 310031
FORCE PROCESSOR BOARD Model SYS68K ASCU-2
Force SYS68K CPU30ZBE CPU-30ZBE CPU Module VMEbus VME
Force SYS68K/ISIO-1FP I/O Controller Dual Board 310034
Force SYS68K/CPU-33B/?4 VME Board CAT#: 510098