When using the Virtex-7 reference design, I get the following CRITICAL WARNING during Synthesis:
[Synth 8-5397] Deprecated attribute BUFFER_TYPE found on pin SFP_TX_FAULT_IN[3].
Please use IO_BUFFER_TYPE or CLOCK_BUFFER_TYPE.
BUFFER_TYPE will not be supported in future releases.
["......../example/XAPP589_XAPP1241_picxo_0_example/XAPP589_XAPP1241_picxo_0_example.srcs/sources_1/imports/example_design/GTH/GTH_picxo_example_top.vhd":72]
Followed by errors in opt_design:
[DRC 23-20] Rule violation (RPBF-1) IO port is missing a buffer - Device port SFP_LOS_IN[0] should be connected to an IO cell such as an [IO]BUF*.
To resolve this error, please comment out lines 1142 to 1145 in the top level file (GTH_picxo_example_top.vhd).
The lines are captured below for easy reference.
attribute buffer_type : string;
attribute buffer_type of sfp_tx_fault_in : signal is "none";
attribute buffer_type of sfp_mod_detect_in : signal is "none";
attribute buffer_type of sfp_los_in : signal is "none";
Revision History:
12/8/2015 - Initial Release
AR# 66089 | |
---|---|
日期 | 12/10/2015 |
状态 | Active |
Type | 综合文章 |
器件 | |
Tools |