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Adding comment to iodelay_tap_average dictionary.

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Tim Ansell 2018-08-08 13:31:11 -07:00 committed by GitHub
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litedram/phy/s7ddrphy.py
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@ -76,7 +76,7 @@ class S7DDRPHY(Module, AutoCSR):
iodelay_tap_average = { iodelay_tap_average = {
200e6: 78e-12, 200e6: 78e-12,
300e6: 52e-12, 300e6: 52e-12,
400e6: 39e-12, 400e6: 39e-12, # Only valid for -3 and -2/2E speed grades
} }
half_sys8x_taps = math.floor(tck/(4*iodelay_tap_average[iodelay_clk_freq])) half_sys8x_taps = math.floor(tck/(4*iodelay_tap_average[iodelay_clk_freq]))