AR# 9730: 3.1i NGDBuild - "WARNING:NgdBuild:483 - Attribute "LOC" on "<pin_name>" is on the wrong type of object..."
AR# 9730
3.1i NGDBuild - "WARNING:NgdBuild:483 - Attribute "LOC" on "<pin_name>" is on the wrong type of object..."
描述
Keywords: FPGA, Express, NGDBuild, BUFG, IPAD, LOC
Urgency: Standard
General Description: When running a 4K/Spartan design through FPGA Express with instantiated BUFGs, I encounter the following warning message:
WARNING:NgdBuild:483 - Attribute "LOC" on "IQ_DEC_CLK" is on the wrong type of object. Please see the "Attributes, Constraints, and Carry Logic" section of the Libraries Guide for more information on this attribute.
解决方案
1
This problem related to the way FPGA Express inserts IPADS into the design. To work around this issue, run NGDBuild with the -a switch.
In Foundation 3.1i:
1. Select the Implementation Options pull-down menu -> Options 2. Push the Edit Options button for implementation. 3. Select the Translate tab. 4. Select "Create I/O Pads from Ports."
1. Right-click on "Implement Design." 2. Select the Translate Options tab. 3. Select "Create I/O Pads from Ports."
3
In Design Manager:
1. Select the Design pull-down menu -> Options. 2. Push the Edit Options button for implementation. 3. Select the Translate tab. 4. Select "Create I/O Pads from Ports."