FPGA下载 最后提示DONE不能拉高

lishangfeng1990

All Checksum calculations are performed on the address range spanned by the configuration file.
ERROR:iMPACT:223 - '1': The calculated checksum (0x0d076f7c) differs from the expected checksum (0x0122eeef).
Setting Flash Control Pins ...
Current cable speed is resumed to 6.000 Mhz.
PROGRESS_END - End Operation.
Elapsed time =     22 sec.

能烧写bit流，也能运行，但是就是不能固化mcs文件，
大神能不能帮帮忙啊！！！