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Observer
Observer
125 Views
Registered: ‎12-12-2019

how to use ILA to XAPP585 OSERDES2 output?

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Hi.
im try to check the XAPP585 serialiser output.

but in the example, PRIMITIVE OSERDES's output is OBUFDS.

i already delete OBUF from serial clkout and data out in the VHDL code.

--io_data_out : OBUFDS port map (
--	O    			=> dataout_p(i),
--	OB       		=> dataout_n(i),
--	I         		=> tx_data_out(i));

dataout_p(i) <=  tx_data_out(i);
dataout_n(i) <= not tx_data_out(i);

 

but still i cant connect output to ILA,

How can I make this output not use OBUF? so i can connect it to ILA to check the serialised signal is correct.

Thanks in advanced.

bellow is Netlist file. there is some way to do this with just VHDL code?

(* CAPACITANCE = "DONT_CARE" *) 
(* XILINX_LEGACY_PRIM = "OBUFDS" *) 
(* box_type = "PRIMITIVE" *) 
OBUFDS #(
.IOSTANDARD("DEFAULT")) 
io_clk_out
(.I(tx_clk_out),
.O(clkout1_p),
.OB(clkout1_n));
(* CAPACITANCE = "DONT_CARE" *) 
(* XILINX_LEGACY_PRIM = "OBUFDS" *) 
(* box_type = "PRIMITIVE" *) 
OBUFDS #(
.IOSTANDARD("DEFAULT")) 
\loop0[0].io_data_out 
(.I(I),
.O(dataout1_p[0]),
.OB(dataout1_n[0]));  

 

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Xilinx Employee
Xilinx Employee
76 Views
Registered: ‎03-30-2016

Re: how to use ILA to XAPP585 OSERDES2 output?

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Hello F.

OSERDES output is only connected to IOB. There is no way you can connect this to FPGA fabric directly.
You need to connect these output pins to an oscilloscope to see the behavior.

Thanks & regards
Leo

View solution in original post

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Highlighted
Xilinx Employee
Xilinx Employee
77 Views
Registered: ‎03-30-2016

Re: how to use ILA to XAPP585 OSERDES2 output?

Jump to solution

Hello F.

OSERDES output is only connected to IOB. There is no way you can connect this to FPGA fabric directly.
You need to connect these output pins to an oscilloscope to see the behavior.

Thanks & regards
Leo

View solution in original post