search

Xilinx / RapidWright

Build Customized FPGA Implementations for Vivado
http://www.rapidwright.io
Other
284 stars 109 forks source link

NullPointerException on Node.IsTied #104

Closed litghost closed 3 years ago

litghost commented 3 years ago

The Node.IsTied method appears to result in a NullPointerException on some Node objects. Test case is in #103. Example invocation:

java com.xilinx.rapidwright.tests.IsNodeTiedTest xc7a35tcpg236-1
==============================================================================
==                    Check Node.IsTied: xc7a35tcpg236-1                    ==
==============================================================================
             Load Device:     0.879s     59.640MBs
Exception in thread "main" java.lang.NullPointerException
        at com.xilinx.rapidwright.device.Node.isTiedToVcc(Unknown Source)
        at com.xilinx.rapidwright.device.Node.isTied(Unknown Source)
        at com.xilinx.rapidwright.tests.IsNodeTiedTest.main(IsNodeTiedTest.java:53)
clavin-xlnx commented 3 years ago

The underlying cause of this problem is Issue #105, however, I have a fix that will go into the next release to avoid the NPE.

clavin-xlnx commented 3 years ago

This should be fixed in 2020.1.6. This also adds APIs to check if a BEL supplies GND/VDD: BEL.isGndSource() and BEL.isVccSource().