AR# 948

SYNPLIFY: "Net work.ibtpu(behavior)-o_c_c has mixed driver types" when using Virtex pullups/pulldowns

Description

Keywords: Pullup, Virtex, Synplify, Verilog, VHDL

Urgency: Standard

General Description:
When targetting Virtex, the following errors are issued

Net work.ibtpu(behavior)-o_c_c has mixed driver types
input pin:I inst:o_obuf of VIRTEX.OBUF(PRIM)
output pin:O inst:i_ibuf of VIRTEX.IBUF(PRIM)
output pin:O inst:U0 of VIRTEX.PULLUP(PRIM)
primopt.c:149 Error: Aborting because of driver errors

Solution

To be fixed in 5.2 of Synplify. No current workaround.
AR# 948
Date 08/27/2001
Status Archive
Type General Article