Hardware
/
litex-boards
mirror of https://github.com/litex-hub/litex-boards.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
litex_boards/platforms/de10nano.py
View File

@ -92,14 +92,16 @@ _mister_sdram_module_io = [
Subsignal("dq", Pins( Subsignal("dq", Pins(
"E8 V12 D11 W12 AH13 D8 AH14 AF7", "E8 V12 D11 W12 AH13 D8 AH14 AF7",
"AE24 AD23 AE6 AE23 AG14 AD5 AF4 AH3"), "AE24 AD23 AE6 AE23 AG14 AD5 AF4 AH3"),
Misc("FAST_OUTPUT_REGISTER ON"), Misc("FAST_OUTPUT_ENABLE_REGISTER ON"),
Misc("FAST_INPUT_REGISTER ON")), Misc("FAST_INPUT_REGISTER ON")),
Subsignal("ba", Pins("Y17 AB25")), Subsignal("ba", Pins("Y17 AB25")),
Subsignal("cas_n", Pins("AA18")), Subsignal("cas_n", Pins("AA18")),
Subsignal("cs_n", Pins("Y18")), Subsignal("cs_n", Pins("Y18")),
Subsignal("ras_n", Pins("W14")), Subsignal("ras_n", Pins("W14")),
Subsignal("we_n", Pins("AA19")), Subsignal("we_n", Pins("AA19")),
Misc("CURRENT_STRENGTH_NEW \"MAXIMUM CURRENT\""),
Misc("FAST_OUTPUT_REGISTER ON"), Misc("FAST_OUTPUT_REGISTER ON"),
Misc("ALLOW_SYNCH_CTRL_USAGE OFF"),
IOStandard("3.3-V LVTTL"), IOStandard("3.3-V LVTTL"),
), ),