求助：iMPACT下载错误：verifying device...Failed at address

22seu_08

烧写FPGA成功，但烧写PROM失败，显示：
verifying device...Failed at address, 8768'1' : verfication terminated
请达人解惑，谢谢

sunliezhi

校验失败，终止。
多下几次试试。

22seu_08

sunliezhi 发表于 2012-7-10 18:59
校验失败，终止。

你好！这个问题如何解决？
是硬件问题？
谢谢

sunliezhi

有可能是硬件问题，没弄过那个，不敢乱说。

zkf0100007

检查JTAG链是否太长，供电纹波

zblw

我也遇到这个问题了，也想问问

提示如下：


INFO:iMPACT - Current time: ������ ����PROGRESS_START - Starting Operation.
'3': Putting device in ISP mode...done.
Maximum TCK operating frequency for this device chain: 15000000.
Validating chain...
Boundary-scan chain validated successfully.
2: Device Temperature: Current Reading: -273.00 C
2: VCCINT Supply: Current Reading:   0.000 V
2: VCCAUX Supply: Current Reading:   0.000 V
4: Device Temperature: Current Reading: -273.00 C
4: VCCINT Supply: Current Reading:   0.000 V
4: VCCAUX Supply: Current Reading:   0.000 V
'3': Erasing device...
'3': Erasure completed successfully.
'3': Putting device in ISP mode...done.
'3': Putting device in ISP mode...done.
done.
'3': Putting device in ISP mode...done.
'3': Putting device in ISP mode...done.
'3': Putting device in ISP mode...done.
'3': Putting device in ISP mode...done.
'3': Programming revision selection to 0.
done.
'3': Putting device in ISP mode...done.
done.
done.
'3': Putting device in ISP mode...done.
'3': Putting device in ISP mode...done.
'3': Verifying device...
Failed at address, 0'3': Verification Terminated
'3': Putting device in ISP mode...done.
done.
'3': Putting device in ISP mode...done.
'3': Programming completed successfully.
'3': Programming completed successfully.
PROGRESS_END - End Operation.
Elapsed time =     45 sec.


在下载50%出现program  failed。不知为什么。我下载很多次都是这样失败的。

板子上两个V5 FPGA和两个prom组成的从串模式。

其中一个V5可以下载prom，而另一个出现上述提示，

但是另一块同样的板，没有此问题。


请大侠能分析一下是什么原因？谢谢。