From 29143a89f8035b87f294444c066f5e22af8bdfbd Mon Sep 17 00:00:00 2001 From: Gwenhael Goavec-Merou Date: Wed, 10 Jan 2024 10:37:01 +0100 Subject: [PATCH] platforms/sipeed_tang_mega_138k: adding some resources/connectors definition (SPI flash, Buttons, SDRAM connector) --- .../platforms/sipeed_tang_mega_138k.py | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/litex_boards/platforms/sipeed_tang_mega_138k.py b/litex_boards/platforms/sipeed_tang_mega_138k.py index 778b70e..737f6d2 100644 --- a/litex_boards/platforms/sipeed_tang_mega_138k.py +++ b/litex_boards/platforms/sipeed_tang_mega_138k.py @@ -27,6 +27,16 @@ _io = [ IOStandard("LVCMOS33") ), + # SPIFlash. + ("spiflash", 0, + Subsignal("cs_n", Pins("P18"), IOStandard("LVCMOS33")), + Subsignal("clk", Pins("H13"), IOStandard("LVCMOS33")), + Subsignal("miso", Pins("R15"), IOStandard("LVCMOS33")), + Subsignal("mosi", Pins("R14"), IOStandard("LVCMOS33")), + Subsignal("wp_n", Pins("P14"), IOStandard("LVCMOS33")), + Subsignal("hold_n", Pins("N14"), IOStandard("LVCMOS33")), + ), + # Leds ("led_n", 0, Pins("J14"), IOStandard("LVCMOS33")), ("led_n", 1, Pins("R26"), IOStandard("LVCMOS33")), @@ -164,6 +174,10 @@ _connectors = [ # SOM.J3 -> dock.J8 odd/even revert _dock_io = [ + ("btn_n", 0, Pins( "J3:60"), IOStandard("LVCMOS33")), + ("btn_n", 1, Pins( "J3:62"), IOStandard("LVCMOS33")), + ("btn_n", 2, Pins( "J3:64"), IOStandard("LVCMOS33")), + ("btn_n", 3, Pins( "J3:66"), IOStandard("LVCMOS33")), # HDMI In ("hdmi_in", 0, Subsignal("clk_p", Pins("J1:107")), @@ -236,6 +250,21 @@ _dock_io = [ ("ephy_clk", 0, Pins("E18"), IOStandard("LVCMOS33")), ] +_dock_connectors = [ + ["sdram_connector", + # ------------------------------------------------------------- + "---", # 0 + # ( 1-10). + " U16 V16 U15 V17 W21 Y21 P21 U17 P23 P24", + # 5V GND (11-20). + " --- --- T23 R23 R25 T25 W23 P25 U24 V23", + # (21-30). + " AC26 U25 AB25 AB26 AA25 AA24 Y26 Y25 L22 M24", + # (31-40). + " W26 W25 U26 V26 W20 Y20 V19 W19 U22 V22", + ], +] + # Platform ----------------------------------------------------------------------------------------- class Platform(GowinPlatform): @@ -245,7 +274,9 @@ class Platform(GowinPlatform): def __init__(self, dock="standard", toolchain="gowin"): GowinPlatform.__init__(self, "GW5AST-LV138FPG676AES", _io, _connectors, toolchain=toolchain, devicename="GW5AST-138B") self.add_extension(_dock_io) + self.add_connector(_dock_connectors) + self.toolchain.options["use_mspi_as_gpio"] = 1 self.toolchain.options["use_sspi_as_gpio"] = 1 self.toolchain.options["use_cpu_as_gpio"] = 1 self.toolchain.options["rw_check_on_ram"] = 1