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Contributor
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249 次查看
注册日期: ‎10-15-2019

IDELAY error

the following error in IDELAYCTRL replication is seen:

 

[Place 30-844] Found un-associated IO delay instances in the design. All IO delay instances require an IdelayCtrl (IDC) or Bitslice control (BSC) instance in the corresponding Bitslice control site of its nibble. The list of IO delay instances without an associated IDC/BSC is as follows: Instance SYNC_ctrl_inst/IDELAYE3_start_inst locked to site BITSLICE_RX_TX_X0Y244 requires IDC/BSC instance on site BITSLICE_CONTROL_X0Y37

device:XKCU040

 

HOW to deal with this, thanks a lot
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197 次查看
注册日期: ‎09-04-2018

回复: IDELAY error

Hi 527114591@qq.com 

      IDELAY你配置是time mode还是count mode? 如果使用time mdoe,必须配合IDELAYCTRL一起使用

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Contributor
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注册日期: ‎10-15-2019

回复: IDELAY error

嗯嗯谢谢,我发现是忘记加这句话了,虽然我不太清楚这是什么意思,貌似是说使用同一个DELAYCTRL?(* IODELAY_GROUP = "FIFO_CTRL_DLY_group" *)

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Xilinx Employee
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注册日期: ‎08-21-2007

回复: IDELAY error

代码中例化IODLEAY的同时需要同时例化IDELAYCTRL。IODELAY_GROUP约束对IDLEAY和IDELAYCTRL取名要相同。