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Merge pull request #430 from pftbest/ddr_fix 

stlv7325: Adjust DDR3 pins to match the reference design
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enjoy-digital 2022-10-01 13:50:21 +02:00 committed by GitHub
parent fb6efe1fa2 cf416d0d66
commit bece3b67aa
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 6 deletions
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14
litex_boards/platforms/aliexpress_stlv7325.py
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@ -59,7 +59,7 @@ _io = [
("ddram", 0,
Subsignal("a", Pins(
"AB7 AD11 AA8 AF10 AC7 AE11 AC8 AD8",
"AC13 AF12 AF9 AD10 AE13 AF7 AB12"),
"AC13 AF12 AF9 AD10 AE13 AF7 AB12 AC12"),
IOStandard("SSTL15")),
Subsignal("ba", Pins("AE8 AA7 AF13"), IOStandard("SSTL15")),
Subsignal("ras_n", Pins("Y7"), IOStandard("SSTL15")),
@ -80,13 +80,15 @@ _io = [
" AD4 AD1 AF2 AE2 AE6 AE5 AF3 AE3"),
IOStandard("SSTL15_T_DCI")),
Subsignal("dqs_p", Pins("AE18 Y15 AD20 W18 W6 AB1 AA5 AF5"),
IOStandard("DIFF_SSTL15")),
IOStandard("DIFF_SSTL15_T_DCI")),
Subsignal("dqs_n", Pins("AF18 Y16 AE20 W19 W5 AC1 AB5 AF4"),
IOStandard("DIFF_SSTL15")),
Subsignal("clk_p", Pins("AC9"), IOStandard("DIFF_SSTL15")),
Subsignal("clk_n", Pins("AD9"), IOStandard("DIFF_SSTL15")),
IOStandard("DIFF_SSTL15_T_DCI")),
Subsignal("clk_p", Pins("AC9"),
IOStandard("DIFF_SSTL15"), Misc("IO_BUFFER_TYPE=NONE")),
Subsignal("clk_n", Pins("AD9"),
IOStandard("DIFF_SSTL15"), Misc("IO_BUFFER_TYPE=NONE")),
Subsignal("cke", Pins("AB9"), IOStandard("SSTL15")),
#Subsignal("odt", Pins("AA12"), IOStandard("SSTL15")),
Subsignal("odt", Pins("AA12"), IOStandard("SSTL15")),
Subsignal("reset_n", Pins("AB20"), IOStandard("LVCMOS15")),
Misc("SLEW=FAST"),
Misc("VCCAUX_IO=NORMAL")