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EBoln
New Contributor I
319 Views

Can't pack to I/O pin

I have two inputs (TMDS_DATA and TMDS2_RX_DATA) When I directly pass to the output the input everything works without any problems. But if I insert scaler between then the register at one input is not implemented in ddio. At the same time, the second entrance fitted correctly

 

TimeQuest report path

Report Path: Found 6 paths. Longest delay is 6.720 -from [get_keepers {TMDS*_DATA[*]}] -to [get_registers {*dd_*}] -npaths 10 -multi_corner -stdout Path #1: Delay is 6.720 =================================================================== From Node : TMDS_DATA[1] To Node : TMDS_Receiver:TMDSReceiver_inst0|dd_green Path: Total (ns) Incr (ns) Type Element ========== ========= == ==== =================================== 0.000 0.000 TMDS_DATA[1] 0.000 0.000 FF IC TMDS_DATA[1]~input|i 0.970 0.970 FF CELL TMDS_DATA[1]~input|o 6.153 5.183 FF IC TMDSReceiver_inst0|dd_green|asdata 6.720 0.567 FF CELL TMDS_Receiver:TMDSReceiver_inst0|dd_green Total Path Delay : 6.720 =================================================================== Path #2: Delay is 2.323 =================================================================== From Node : TMDS_DATA[2] To Node : TMDS_Receiver:TMDSReceiver_inst0|dd_red Path: Total (ns) Incr (ns) Type Element ========== ========= == ==== =================================== 0.000 0.000 TMDS_DATA[2] 0.000 0.000 FF IC TMDS_DATA[2]~input|i 1.016 1.016 FF CELL TMDS_DATA[2]~input|o 1.016 0.000 FF IC TMDSReceiver_inst0|dd_red|d 2.323 1.307 FF CELL TMDS_Receiver:TMDSReceiver_inst0|dd_red Total Path Delay : 2.323 =================================================================== Path #3: Delay is 2.233 =================================================================== From Node : TMDS2_RX_DATA[0] To Node : TMDS_Receiver:TMDSReceiver_inst1|dd_blue Path: Total (ns) Incr (ns) Type Element ========== ========= == ==== =================================== 0.000 0.000 TMDS2_RX_DATA[0] 0.000 0.000 FF IC TMDS2_RX_DATA[0]~input|i 0.940 0.940 FF CELL TMDS2_RX_DATA[0]~input|o 0.940 0.000 FF IC TMDSReceiver_inst1|dd_blue|d 2.233 1.293 FF CELL TMDS_Receiver:TMDSReceiver_inst1|dd_blue Total Path Delay : 2.233 =================================================================== Path #4: Delay is 2.233 =================================================================== From Node : TMDS_DATA[0] To Node : TMDS_Receiver:TMDSReceiver_inst0|dd_blue Path: Total (ns) Incr (ns) Type Element ========== ========= == ==== =================================== 0.000 0.000 TMDS_DATA[0] 0.000 0.000 FF IC TMDS_DATA[0]~input|i 0.940 0.940 FF CELL TMDS_DATA[0]~input|o 0.940 0.000 FF IC TMDSReceiver_inst0|dd_blue|d 2.233 1.293 FF CELL TMDS_Receiver:TMDSReceiver_inst0|dd_blue Total Path Delay : 2.233 =================================================================== Path #5: Delay is 2.223 =================================================================== From Node : TMDS2_RX_DATA[2] To Node : TMDS_Receiver:TMDSReceiver_inst1|dd_red Path: Total (ns) Incr (ns) Type Element ========== ========= == ==== =================================== 0.000 0.000 TMDS2_RX_DATA[2] 0.000 0.000 FF IC TMDS2_RX_DATA[2]~input|i 0.930 0.930 FF CELL TMDS2_RX_DATA[2]~input|o 0.930 0.000 FF IC TMDSReceiver_inst1|dd_red|d 2.223 1.293 FF CELL TMDS_Receiver:TMDSReceiver_inst1|dd_red Total Path Delay : 2.223 =================================================================== Path #6: Delay is 2.198 =================================================================== From Node : TMDS2_RX_DATA[1] To Node : TMDS_Receiver:TMDSReceiver_inst1|dd_green Path: Total (ns) Incr (ns) Type Element ========== ========= == ==== =================================== 0.000 0.000 TMDS2_RX_DATA[1] 0.000 0.000 FF IC TMDS2_RX_DATA[1]~input|i 0.905 0.905 FF CELL TMDS2_RX_DATA[1]~input|o 0.905 0.000 FF IC TMDSReceiver_inst1|dd_green|d 2.198 1.293 FF CELL TMDS_Receiver:TMDSReceiver_inst1|dd_green Total Path Delay : 2.198 ===================================================================

I added the following to QSF:

set_instance_assignment -name FAST_INPUT_REGISTER ON -to "TMDS_Receiver:TMDSReceiver_inst0|dd_green" set_instance_assignment -name FAST_INPUT_REGISTER ON -to "TMDS_Receiver:TMDSReceiver_inst0|dd_red" set_instance_assignment -name FAST_INPUT_REGISTER ON -to "TMDS_Receiver:TMDSReceiver_inst0|dd_blue"

But:

Warning (176225): Can't pack node TMDS_Receiver:TMDSReceiver_inst0|dd_green to I/O pin Warning (176229): Can't pack node TMDS_Receiver:TMDSReceiver_inst0|dd_green and I/O node TMDS_DATA[1] -- nodes have conflicting location assignments Info (176253): Node "TMDS_Receiver:TMDSReceiver_inst0|dd_green" assigned to CUSTOM_REGION_X0_Y0_X44_Y36 due to Automatic Periphery Placement Info (176253): Node "TMDS_DATA[1]" assigned to PIN AA29 due to User Location Constraints and Automatic Periphery Placement Info (176253): Node "TMDS_DATA[1]" assigned to PIN AA29 due to Automatic Periphery Placement Info (171110): Nodes could not be merged because their location constraints do not overlap Info (171109): Node "TMDS_DATA[1]~input" assigned to IOIBUF_X89_Y32_N4 due to Automatic Periphery Placement

Why? and how can I force the use of ddio register?

 

 

0 Kudos
8 Replies
77 Views

Hi,

 

Can you try to remove the user-defined location setting for the TMDS_DATA[1] node?

 

Thanks.

EBoln
New Contributor I
77 Views

Do you mean pin assignment? Should fitter put input elsewhere?

77 Views

Hi,

 

Yes. Can you check in Assignment Editor?

 

Thanks.

EBoln
New Contributor I
77 Views

In Assignments Editor:

  • Set Location(to pins only) for TMDS_DATA
  • Set I/O Standart(LVDS) for TMDS_DATA
  • Set Input termination
  • Set Fast Input register(enable)
77 Views

Hi,

 

Can you disable the location assignment?

 

Thanks

EBoln
New Contributor I
77 Views

77 Views

Hi,

 

Can you provide the design.qar for investigation?

 

Thanks.

77 Views

Hi,

 

The error cannot be reproduced. I enable the following assignments and the software reported that this node does not exist in the design.

 

set_instance_assignment -name FAST_INPUT_REGISTER ON -to "TMDS_Receiver:TMDSReceiver_inst0|dd_green"

set_instance_assignment -name FAST_INPUT_REGISTER ON -to "TMDS_Receiver:TMDSReceiver_inst0|dd_red"

set_instance_assignment -name FAST_INPUT_REGISTER ON -to "TMDS_Receiver:TMDSReceiver_inst0|dd_blue"

set_instance_assignment -name FAST_INPUT_REGISTER ON -to "TMDS_Receiver:TMDSReceiver_inst1|dd_blue"

set_instance_assignment -name FAST_INPUT_REGISTER ON -to "TMDS_Receiver:TMDSReceiver_inst1|dd_green"

set_instance_assignment -name FAST_INPUT_REGISTER ON -to "TMDS_Receiver:TMDSReceiver_inst1|dd_red"

 

Could you help to check?

 

Thanks.

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