★★★急急急!我的XC18V04!救命呀!!!
各位高手大虾,救救我吧!
我已经3天3夜没吃好饭没睡好觉了!
我用的是FOUNDATION4.1
我有一个很急的项目,但我的XC18V04VQ44为何下不下去呢?
我用XC18V04配置XCV300PQ240,JTAG方式,TDI先进XC18V04,再进
XCV300,然后从TDO出来,但是,我现在用下载线可下载FPGA,功能
正确,但下载XC18V04时,总是告诉我:从XC18V04读出的IDCODE
与BSDL文件中的IDCODE不一致,为什么?为什么呀?
大家帮我看看xilinx jtag下载时遇到的问题
软件是foundation41i,FPGA使用xilinx 的XCV300,PROM XC18V04
Welcome to iMPACT! - The intelligent Multi-purpose Programming And Configuration Tool
'1': Loading file '1105.bit' ...
done.
------------------------------------------------------------------------------------
------------------------------------------------------------------------------------
Device #1 selected
Device #1 selected
AutoDetecting cable. Please wait.
CB_PROGRESS_START - Starting Operation.
Connecting to cable (USB Port).
Cable connection failed.
Connecting to cable (Parallel Port - LPT1).
Cable connection established.
Elapsed time = 1 sec.
Validating chain...
Boundary-scan chain validated successfully.
ERROR:iMPACT:583 - '1': The idcode read from the device does not match the idcode in the bsdl File.
=>
是不是remark过的?
我已经换了一颗PROM
还是这样
我花了8000作这块板
搞不好就成废品了
JTAG我没加上下拉电阻,是否不行?
要是加的话,怎么加?那几个脚加?加多大?
还有,我的M0~M2用300欧下拉(主串方式),行吗?
要是remark过的,我就废拉! |