奇怪现象,有没有人遇到过 现象

hjw20000

我用的是xc9572xl,用ise7.1下载的,为什么输出的都是反相的阿,比如说,我从一个输入管脚输入'1'.直接从另一个输出管脚输出,结果却是'0',

这到底是怎么回事阿,有没有人遇到过阿

hjw20000

是不是什么地方有默认的输出反相阿

hjw20000

呵呵,终于找到答案了,自己顶一个.

XC9500, XC9500XL, XC9500XV:
There is a bug in the program that creates the Jedec file (hprep6). This bug appears only on Windows platforms. It does not occur on Linux or Solaris operating systems. There is a logic error, and the outputs will appear to be inverted. Programming a device with this invalid Jedec file will NOT harm the device.

CoolRunner XPLA3:
A bug in the program creates the Jedec file (hprep6). This bug affects all operating systems. Programming a device with this invalid Jedec file will NOT harm the device.

This issue has been fixed in the latest 7.1i Service Pack available at:
http://www.xilinx.com/xlnx/xil_sw_updates_home.jsp
The first service pack containing the fix is 7.1i Service Pack 2.

haifengwang

我也碰见过这种情况,就是一直不知道原因,非常感谢!