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targets/de0nano: set sys2x_ps phase to 180° for sdram_rate=1:2.

This commit is contained in:
Florent Kermarrec 2020-08-24 09:28:51 +02:00
parent 70594a5305
commit 84c19a6cdf
1 changed files with 1 additions and 1 deletions
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2
litex_boards/targets/de0nano.py
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@ -47,7 +47,7 @@ class _CRG(Module):
pll.create_clkout(self.cd_sys, sys_clk_freq) pll.create_clkout(self.cd_sys, sys_clk_freq)
if sdram_rate == "1:2": if sdram_rate == "1:2":
pll.create_clkout(self.cd_sys2x, 2*sys_clk_freq) pll.create_clkout(self.cd_sys2x, 2*sys_clk_freq)
pll.create_clkout(self.cd_sys2x_ps, 2*sys_clk_freq, phase=90) pll.create_clkout(self.cd_sys2x_ps, 2*sys_clk_freq, phase=180) # Idealy 90° but needs to be increased.
else: else:
pll.create_clkout(self.cd_sys_ps, sys_clk_freq, phase=90) pll.create_clkout(self.cd_sys_ps, sys_clk_freq, phase=90)