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platforms/de10nano: use additional sdram constraints required for HalfRate.

This commit is contained in:
Florent Kermarrec 2020-07-24 12:27:36 +02:00
parent 7399d13cef
commit 9730c6f722
1 changed files with 3 additions and 1 deletions
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4
litex_boards/platforms/de10nano.py
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@ -92,14 +92,16 @@ _mister_sdram_module_io = [
Subsignal("dq", Pins(
"E8 V12 D11 W12 AH13 D8 AH14 AF7",
"AE24 AD23 AE6 AE23 AG14 AD5 AF4 AH3"),
Misc("FAST_OUTPUT_REGISTER ON"),
Misc("FAST_OUTPUT_ENABLE_REGISTER ON"),
Misc("FAST_INPUT_REGISTER ON")),
Subsignal("ba", Pins("Y17 AB25")),
Subsignal("cas_n", Pins("AA18")),
Subsignal("cs_n", Pins("Y18")),
Subsignal("ras_n", Pins("W14")),
Subsignal("we_n", Pins("AA19")),
Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""),
Misc("FAST_OUTPUT_REGISTER ON"),
Misc("ALLOW_SYNCH_CTRL_USAGE OFF"),
IOStandard("3.3-V LVTTL"),
),