文件名称:PERIPHERAL
介绍说明－－下载内容均来自于网络，请自行研究使用
1、该PERIPHERAL文件夹包含五个有关系统外设的程序：DEC5502_USB、DEC5502_LED和DEC5502_UART程序。
2、DEC5502_USB程序主要实现了与PC机应用程序之间的USB通讯，并根据PC机传来的指令进行相应的动作。
3、DEC5502_UART程序主要完成了利用外扩UART（A通路和B通路）与PC机进行数据的发送和接收操作。
4、DEC5502_LED程序通过配置系统定时器和系统中断来控制指示灯D5和D1，并且通过D5和D1是否交替闪烁来达到测试系统定时器和系统中断的目的。
5、DE5502_SDRAM与EMIF有关的测试程序。对他们的访问成功与否主要取决于对EMIF接口的配置，测试程序配置时设为最为可靠的方式，用户可以根据相应的技术文档来对EMIF进行重新配置，从而提高访问外扩存储器的速度。
-err
2、DEC5502_USB程序主要实现了与PC机应用程序之间的USB通讯，并根据PC机传来的指令进行相应的动作。
3、DEC5502_UART程序主要完成了利用外扩UART（A通路和B通路）与PC机进行数据的发送和接收操作。
4、DEC5502_LED程序通过配置系统定时器和系统中断来控制指示灯D5和D1，并且通过D5和D1是否交替闪烁来达到测试系统定时器和系统中断的目的。
5、DE5502_SDRAM与EMIF有关的测试程序。对他们的访问成功与否主要取决于对EMIF接口的配置，测试程序配置时设为最为可靠的方式，用户可以根据相应的技术文档来对EMIF进行重新配置，从而提高访问外扩存储器的速度。
-err
(系统自动生成,下载前可以参看下载内容)
下载文件列表
PERIPHERAL
..........\DEC5502_ESAM
..........\............\cc_build_Debug.log
..........\............\command.sct
..........\............\csl5502x.lib
..........\............\Debug
..........\............\Debug.lkf
..........\............\Debug.lkv
..........\............\DEC5502_DES.c
..........\............\DEC5502_DES.h
..........\............\DEC5502_ESAM.c
..........\............\DEC5502_ESAM.paf
..........\............\DEC5502_ESAM.pjt
..........\............\DEC5502_ESAM.wks
..........\............\DEC5502_MAC.c
..........\............\DEC5502_MAC.h
..........\............\Emif.c
..........\............\Emif.h
..........\............\Esam_Function.c
..........\............\Esam_Function.h
..........\............\result.txt
..........\............\rts55x.lib
..........\............\SeedDes.c
..........\............\SEED_DEC5502.cmd
..........\............\SEED_DEC5502.gel
..........\............\Timer.c
..........\............\Timer.h
..........\............\Uart_Function.c
..........\............\Uart_Function.h
..........\............\vectors.s55
..........\DEC5502_LED
..........\...........\5502_LED.c
..........\...........\cc_build_Debug.log
..........\...........\csl5502.lib
..........\...........\csl5502x.lib
..........\...........\Debug
..........\...........\Debug.lkf
..........\...........\Debug.lkv
..........\...........\DEC5502_LED.paf
..........\...........\DEC5502_LED.pjt
..........\...........\DEC5502_LED.wks
..........\...........\rts55.lib
..........\...........\rts55x.lib
..........\...........\SEED_DEC5502.cmd
..........\...........\SEED_DEC5502.gel
..........\...........\vectors.s55
..........\DEC5502_SDRAM
..........\.............\5502_SDRAM.c
..........\.............\cc_build_Debug.log
..........\.............\csl5502x.lib
..........\.............\Debug
..........\.............\Debug.lkf
..........\.............\Debug.lkv
..........\.............\DEC5502_SDRAM.CS_
..........\.............\.................\FILE.CDX
..........\.............\.................\FILE.DBF
..........\.............\.................\FILE.FPT
..........\.............\.................\SYMBOL.CDX
..........\.............\.................\SYMBOL.DBF
..........\.............\.................\SYMBOL.FPT
..........\.............\DEC5502_SDRAM.paf
..........\.............\DEC5502_SDRAM.paf2
..........\.............\DEC5502_SDRAM.pjt
..........\.............\DEC5502_SDRAM.sbl
..........\.............\DEC5502_SDRAM.wks
..........\.............\rts55x.lib
..........\.............\SEED_DEC5502.cmd
..........\.............\SEED_DEC5502.gel
..........\DEC5502_UART
..........\............\cc_build_Debug.log
..........\............\csl5502x.lib
..........\............\Debug
..........\............\Debug.lkf
..........\............\Debug.lkv
..........\............\DEC5502_UART.c
..........\............\DEC5502_UART.c.bak
..........\............\DEC5502_UART.CS_
..........\............\................\FILE.CDX
..........\............\................\FILE.DBF
..........\............\................\FILE.FPT
..........\............\................\SYMBOL.DBF
..........\............\................\SYMBOL.FPT
..........\............\DEC5502_UART.paf
..........\............\DEC5502_UART.paf2
..........\............\DEC5502_UART.pjt
..........\............\DEC5502_UART.sbl
..........\............\DEC5502_UART.wks
..........\............\Def_Uart_Ex.h
..........\............\emif.c
..........\............\emif.h
..........\............\rts55x.lib
..........\............\SEED_DEC5502.cmd
..........\............\SEED_DEC5502.gel
..........\............\type.h
..........\............\UART.c
..........\............\UART.h
..........\............\vectors.s55
..........\DEC5502_USB
..........\...........\5502_flash.h
..........\...........\5502_usb.c
..........\DEC5502_ESAM
..........\............\cc_build_Debug.log
..........\............\command.sct
..........\............\csl5502x.lib
..........\............\Debug
..........\............\Debug.lkf
..........\............\Debug.lkv
..........\............\DEC5502_DES.c
..........\............\DEC5502_DES.h
..........\............\DEC5502_ESAM.c
..........\............\DEC5502_ESAM.paf
..........\............\DEC5502_ESAM.pjt
..........\............\DEC5502_ESAM.wks
..........\............\DEC5502_MAC.c
..........\............\DEC5502_MAC.h
..........\............\Emif.c
..........\............\Emif.h
..........\............\Esam_Function.c
..........\............\Esam_Function.h
..........\............\result.txt
..........\............\rts55x.lib
..........\............\SeedDes.c
..........\............\SEED_DEC5502.cmd
..........\............\SEED_DEC5502.gel
..........\............\Timer.c
..........\............\Timer.h
..........\............\Uart_Function.c
..........\............\Uart_Function.h
..........\............\vectors.s55
..........\DEC5502_LED
..........\...........\5502_LED.c
..........\...........\cc_build_Debug.log
..........\...........\csl5502.lib
..........\...........\csl5502x.lib
..........\...........\Debug
..........\...........\Debug.lkf
..........\...........\Debug.lkv
..........\...........\DEC5502_LED.paf
..........\...........\DEC5502_LED.pjt
..........\...........\DEC5502_LED.wks
..........\...........\rts55.lib
..........\...........\rts55x.lib
..........\...........\SEED_DEC5502.cmd
..........\...........\SEED_DEC5502.gel
..........\...........\vectors.s55
..........\DEC5502_SDRAM
..........\.............\5502_SDRAM.c
..........\.............\cc_build_Debug.log
..........\.............\csl5502x.lib
..........\.............\Debug
..........\.............\Debug.lkf
..........\.............\Debug.lkv
..........\.............\DEC5502_SDRAM.CS_
..........\.............\.................\FILE.CDX
..........\.............\.................\FILE.DBF
..........\.............\.................\FILE.FPT
..........\.............\.................\SYMBOL.CDX
..........\.............\.................\SYMBOL.DBF
..........\.............\.................\SYMBOL.FPT
..........\.............\DEC5502_SDRAM.paf
..........\.............\DEC5502_SDRAM.paf2
..........\.............\DEC5502_SDRAM.pjt
..........\.............\DEC5502_SDRAM.sbl
..........\.............\DEC5502_SDRAM.wks
..........\.............\rts55x.lib
..........\.............\SEED_DEC5502.cmd
..........\.............\SEED_DEC5502.gel
..........\DEC5502_UART
..........\............\cc_build_Debug.log
..........\............\csl5502x.lib
..........\............\Debug
..........\............\Debug.lkf
..........\............\Debug.lkv
..........\............\DEC5502_UART.c
..........\............\DEC5502_UART.c.bak
..........\............\DEC5502_UART.CS_
..........\............\................\FILE.CDX
..........\............\................\FILE.DBF
..........\............\................\FILE.FPT
..........\............\................\SYMBOL.DBF
..........\............\................\SYMBOL.FPT
..........\............\DEC5502_UART.paf
..........\............\DEC5502_UART.paf2
..........\............\DEC5502_UART.pjt
..........\............\DEC5502_UART.sbl
..........\............\DEC5502_UART.wks
..........\............\Def_Uart_Ex.h
..........\............\emif.c
..........\............\emif.h
..........\............\rts55x.lib
..........\............\SEED_DEC5502.cmd
..........\............\SEED_DEC5502.gel
..........\............\type.h
..........\............\UART.c
..........\............\UART.h
..........\............\vectors.s55
..........\DEC5502_USB
..........\...........\5502_flash.h
..........\...........\5502_usb.c