I'm trying to make differential clock(100MHz from oscillator) to differential clock output(40MHz differential)
clk_100M_P&M is connected to external crystal oscillator(input) and I allocated clk_40_P&M to PIO port(output).
clk_front , clk_back is for check point. when I checked, the result was : clk_front : 100MHz & clk_back : 40MHz . However, clk_40_P &N port didn't output some waveform.
I have no idea what's the problem.
1st trial : clk_front & back :LVCmos33 and clk_40_P & N : LVDS25 -> result : LVCmos33,(bank34) clk_front & back (success) and (bank35) clk_40_P & N : LVDS25 ( failed )
2nd trial : clk_front & back :LVCmos25 and clk_40_P & N : LVDS25 -> result : LVCmos25 ,(bank35) clk_front & back (success) and (bank35) clk_40_P & N : LVDS25 ( failed )
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youngpark
Hi there!
I'm trying to make differential clock(100MHz from oscillator) to differential clock output(40MHz differential)
clk_100M_P&M is connected to external crystal oscillator(input) and I allocated clk_40_P&M to PIO port(output).
clk_front , clk_back is for check point. when I checked, the result was : clk_front : 100MHz & clk_back : 40MHz . However, clk_40_P &N port didn't output some waveform.
I have no idea what's the problem.
1st trial : clk_front & back : LVCmos33 and clk_40_P & N : LVDS25 -> result : LVCmos33,(bank34) clk_front & back (success) and (bank35) clk_40_P & N : LVDS25 ( failed )
2nd trial : clk_front & back : LVCmos25 and clk_40_P & N : LVDS25 -> result : LVCmos25 ,(bank35) clk_front & back (success) and (bank35) clk_40_P & N : LVDS25 ( failed )
thank you for your help!
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