Can't configure device. Expected JTAG ID code问题总结

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Can't configure device. Expected JTAG ID code问题总结

1:JTAG 下载不稳定

(1)用 ByteBlasterMV [LPT1]下载线下载*.sof文件时,下载到87%就会出现下面的问题:

       Error: Can't configure device. Expected JTAG ID code 0x020940DD for device 1, but    found JTAG ID code 0xFFFFFFFF.

但是用Auto detect还能检测到JTAG,继续下载又会重复上面的错误,

(2)有时也能下载成功,但是当用SignalTap II进行采样时,又会出现下面的错误:

Error: Can't find the instance.   Download a design with SRAM Object File containing this instance.

有时也能下载并采样成功,有时就会出现上面两种错误。

(3)当检测不到JTAG时,把电源关了再开,就又能检测到JTAG了

问题原因:电源不稳定;可能是虚焊。(目前已经碰到的)

2:ALTERA公司的问题

Problem

JTAG Programming Failure "Can't configure device.Expected JTAG ID code 0xZZZZZZZZ for device 4,but found JTAG ID code 0xYYYYYYYY"

Solution

This programming failure may be caused if you have a non-ALTERA device in your JTAG chain. Ensure you bypass all non-Altera devices in Quartus II to avoid this message.

3:Quartus II里的目标器件与实际开发板上器件不一致

Error: Can't configure device. Expected JTAG ID code 0x020820DD for device 1, but found JTAG ID code 0x020830DD.

查看了半天发现原来是device 选择出错了,也就是实际的硬件设备和assignments/device里面所选的器件不一致,这个可以重新选择一下然后全部重新编译一下就好.

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