AR# 71466
|DMA Subsystem for PCI Express (Vivado 2018.2) - ERROR: [Place 30-69] Instance xdma_app_i/led_2_obuf (OBUF drives I/O terminal xdma_app_i/leds[2]) is unplaced after IO placer
描述
An IP example design using the "Tandem with field updates" option generates the following errors and critical warnings when the executing design_field_updates.tcl script.
CRITICAL WARNING: [filemgmt 56-226] HADGDesignGraphMgr::releaseGraph: Graph could not be found.
WARNING: [Vivado 12-584] No ports matched 'led_0'. [/xdma_0_ex/imports/xilinx_pcie_xdma_ref_board.xdc:97]
CRITICAL WARNING: [Common 17-55] 'set_property' expects at least one object. [/xdma_0_ex/imports/xilinx_pcie_xdma_ref_board.xdc:97]
Resolution: If [get_<value>] was used to populate the object, check to make sure this command returns at least one valid object.
WARNING: [Vivado 12-584] No ports matched 'led_1'. [/xdma_0_ex/imports/xilinx_pcie_xdma_ref_board.xdc:99]
CRITICAL WARNING: [Vivado 12-4739] set_false_path:No valid object(s) found for '-to [get_ports -filter NAME=~led_*]'. [/xdma_0_ex/imports/xilinx_pcie_xdma_ref_board.xdc:109]
CRITICAL WARNING: [Common 17-55] 'set_property' expects at least one object. [/xdma_0_ex/imports/xilinx_pcie_xdma_ref_board.xdc:97]
Resolution: If [get_<value>] was used to populate the object, check to make sure this command returns at least one valid object.
WARNING: [Vivado 12-584] No ports matched 'led_1'. [/xdma_0_ex/imports/xilinx_pcie_xdma_ref_board.xdc:99]
CRITICAL WARNING: [Vivado 12-4739] set_false_path:No valid object(s) found for '-to [get_ports -filter NAME=~led_*]'. [/xdma_0_ex/imports/xilinx_pcie_xdma_ref_board.xdc:109]
........................................
ERROR: [Place 30-69] Instance xdma_app_i/led_2_obuf (OBUF drives I/O terminal xdma_app_i/leds[2]) is unplaced after IO placer
ERROR: [Place 30-68] Instance xdma_app_i/led_2_obuf (OBUF) is not placed
ERROR: [Place 30-99] Placer failed with error: 'IO Clock Placer failed'
Please review all ERROR, CRITICAL WARNING, and WARNING messages during placement to understand the cause for failure.
17 Infos, 1 Warnings, 0 Critical Warnings and 4 Errors encountered.
place_design failed
ERROR: [Common 17-69] Command failed: Placer could not place all instances
This article is part of the PCI Express Solution Centre
| (Xilinx Answer 34536) | Xilinx Solution Center for PCI Express |
解决方案
The xdma_app.v module has an "leds" output port.
This output is expected to be connected to led_0, led_1, led_2 and led_3 ports in the example design top file.
Follow the steps below to resolve this issue.
1) Add the output ports led_0, led_1, led_2, led_3.
2) Connect the leds output from the xdma_app module instance to the output ports.
3) Add the following Tcl commands in the static_synth.tcl file before the synth_design command.
# Disable DRC relating to unconnected IO on the PR region. This is intentional as
# the provided design is an example design rather than completed design.
set_msg_config -id {Constraints 18-952} -new_severity {Warning}
# Disable DRC relating to unconnected IO at the PR region boundary relating to the
# PR region debug bridge IP.
set_msg_config -id {Synth 8-4442} -new_severity {Warning}
Revision History:
- 11/14/2018 - Initial Release
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| AR# 71466 | |
|---|---|
| 日期 | 11/14/2018 |
| 状态 | Active |
| Type | 综合文章 |
| 器件 | |
| Tools | |
| IP | |
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