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efinix_trion_t120_bga576: Add PMODs connectors and use USB-UART/PMOD_E as Serial.

This commit is contained in:
Florent Kermarrec 2021-10-14 10:10:42 +02:00
parent 36897f4646
commit 430918756d
2 changed files with 31 additions and 8 deletions
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35
litex_boards/platforms/efinix_trion_t120_bga576_dev_kit.py
View File

@ -36,15 +36,34 @@ _io = [
("user_sw", 1, Pins("T16"), IOStandard("3.3_V_LVTTL_/_LVCMOS"), Misc("WEAK_PULLUP")),
("user_sw", 2, Pins("T15"), IOStandard("3.3_V_LVTTL_/_LVCMOS"), Misc("WEAK_PULLUP")),
("user_sw", 3, Pins("U15"), IOStandard("3.3_V_LVTTL_/_LVCMOS"), Misc("WEAK_PULLUP")),
# Serial / PMOD USB-UART on PMOD E.
("serial", 0,
Subsignal("tx", Pins("B23")),
Subsignal("rx", Pins("A20")),
IOStandard("3.3_V_LVTTL_/_LVCMOS")
),
]
# Connectors ---------------------------------------------------------------------------------------
_connectors = [
("pmod_a", " T12 V11 Y12 Y10 U12 U11 W12 Y11"),
("pmod_b", "AD11 AD10 AC10 W10 AA11 AC11 AA10 V10"),
("pmod_c", " A11 D11 J11 G10 B11 E11 H11 F10"),
("pmod_d", " D10 A10 A9 D9 E10 B10 B9 C9"),
("pmod_e", " C24 B23 A20 A22 B24 A23 B20 B22"),
("pmod_f", " V21 V20 AD20 AD19 U21 V19 AC20 AC19"),
]
# PMODS --------------------------------------------------------------------------------------------
def raw_pmod_io(pmod):
return [(pmod, 0, Pins(" ".join([f"{pmod}:{i:d}" for i in range(8)])), IOStandard("3.3_V_LVTTL_/_LVCMOS"))]
def usb_pmod_io(pmod):
return [
# USB-UART PMOD: https://store.digilentinc.com/pmod-usbuart-usb-to-uart-interface/
("usb_uart", 0,
Subsignal("tx", Pins(f"{pmod}:1")),
Subsignal("rx", Pins(f"{pmod}:2")),
IOStandard("3.3_V_LVTTL_/_LVCMOS")
),
]
# Platform -----------------------------------------------------------------------------------------
class Platform(EfinixPlatform):
@ -52,7 +71,7 @@ class Platform(EfinixPlatform):
default_clk_period = 1e9/40e6
def __init__(self):
EfinixPlatform.__init__(self, "T120F576", _io, toolchain="efinity")
EfinixPlatform.__init__(self, "T120F576", _io, _connectors, toolchain="efinity")
def create_programmer(self):
return EfinixProgrammer()

4
litex_boards/targets/efinix_trion_t120_bga576_dev_kit.py
View File

@ -38,6 +38,10 @@ class BaseSoC(SoCCore):
def __init__(self, sys_clk_freq=int(40e6), with_led_chaser=True, **kwargs):
platform = efinix_trion_t120_bga576_dev_kit.Platform()
# USBUART PMOD as Serial--------------------------------------------------------------------
platform.add_extension(efinix_trion_t120_bga576_dev_kit.usb_pmod_io("pmod_e"))
kwargs["uart_name"] = "usb_uart"
# SoCCore ----------------------------------------------------------------------------------
SoCCore.__init__(self, platform, sys_clk_freq,
#ident = "LiteX SoC on Efinix Trion T120 BGA576 Dev Kit", # FIXME: Crash design.