FPGA调试JTAG检测不到设备

lansyaog

file:///D:\systemsoft\QQ\3169746502\Image\Group\7XDZQ2LU6FRSJTU0V3B8W%H.pngfile:///D:\systemsoft\QQ\3169746502\Image\Group\7XDZQ2LU6FRSJTU0V3B8W%H.png!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: Incorrect clock value
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: TDI connection to the first detected device UNKNOWN_FE000001 might be shorted to GND
!Error: The TCK and TMS connections to the device before the first detected device UNKNOWN_FE000001 might have a problem
!Info: Detected 1 device(s)
!Info: Device 1: UNKNOWN_FE000001
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: TDI connection to the first detected device UNKNOWN_NO_JTAG_ID might be shorted to GND
!Error: The TCK and TMS connections to the device before the first detected device UNKNOWN_NO_JTAG_ID might have a problem
!Info: Detected 1 device(s)
!Info: Device 1: UNKNOWN_NO_JTAG_ID
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
!Error: JTAG chain problem detected
!Error: No device detected
在短路conf_done的led时会出现上面比较长的那些信息。

lansyaog

补充一下，图一为JTAG chain degugger 测试时提示的错误

fzwwj95

楼主这是在问问题吗？？？？？

lansyaog

fzwwj95 发表于 2018-4-9 20:08
楼主这是在问问题吗？？？？？

是的啊，好使了分享出来，嘻嘻嘻嘻！！！！！！！！！！！！！

fzwwj95

lansyaog 发表于 2018-4-10 08:22
是的啊，好使了分享出来，嘻嘻嘻嘻！！！！！！！！！！！！！

看了半天我还以为没解决。。。。

lansyaog

fzwwj95 发表于 2018-4-10 08:29
看了半天我还以为没解决。。。。

没解决提问呢，我的失误，，，，，，，，，，，

fzwwj95

lansyaog 发表于 2018-4-10 08:31
没解决提问呢，我的失误，，，，，，，，，，，

还是好好看看小梅哥的提问规范。。。。。。。

yjzlove

请问楼主 你的问题解决了么

sun327130352

可以试试用示波器看看JTAG引脚是否有电平变化，希望可以帮到你