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-rw-r--r--nmigen_boards/mercury.py217
1 files changed, 5 insertions, 212 deletions
diff --git a/nmigen_boards/mercury.py b/nmigen_boards/mercury.py
index 34e3601..619a55f 100644
--- a/nmigen_boards/mercury.py
+++ b/nmigen_boards/mercury.py
@@ -1,214 +1,7 @@
-import os
-import subprocess
+from amaranth_boards.mercury import *
+from amaranth_boards.mercury import __all__
-from nmigen.build import *
-from nmigen.vendor.xilinx_spartan_3_6 import *
-from .resources import *
-
-__all__ = ["MercuryPlatform"]
-
-
-class MercuryPlatform(XilinxSpartan3APlatform):
- """
- Original Mercury Board from Micro-Nova: https://www.micro-nova.com
-
- Mercury Manual: https://www.micro-nova.com/s/mercury_rm.pdf
- Mercury Schematic: https://www.micro-nova.com/s/mercury_schematic.pdf
-
- The Mercury board is often paired with an extension board called the
- Baseboard, which provides an ample set of I/O for FPGA beginners.
-
- Baseboard Manual: https://www.micro-nova.com/s/baseboard_rm.pdf
- Baseboard Schematics: https://www.micro-nova.com/s/baseboard_schematic.pdf
-
- Mercury and Baseboard Resources: https://www.micro-nova.com/resources-mercury
- """
-
- device = "xc3s200a"
- package = "vq100"
- speed = "4"
-
- default_clk = "clk50"
- resources = [
- Resource("clk50", 0, Pins("P43", dir="i"),
- Attrs(IOSTANDARD="LVCMOS33"), Clock(50e6)),
-
- Resource("button", 0, Pins("P41", dir="i"),
- Attrs(IOSTANDARD="LVTTL")),
-
- # The serial interface and flash memory have a shared SPI bus.
- # FPGA is secondary.
- SPIResource("spi_serial", 0, role="peripheral",
- cs_n="P39", clk="P53", copi="P46", cipo="P51",
- attrs=Attrs(IOSTANDARD="LVTTL"),
- ),
-
- # FPGA is primary.
- *SPIFlashResources(0,
- cs_n="P27", clk="P53", copi="P46", cipo="P51",
- attrs=Attrs(IOSTANDARD="LVTTL")
- ),
-
- # ADC over SPI- FPGA is primary.
- SPIResource("spi_adc", 0, role="controller",
- cs_n="P12", clk="P9", copi="P10", cipo="P21",
- attrs=Attrs(IOSTANDARD="LVTTL"),
- ),
-
- # GPIO/SRAM Control
- # 5V tolerant GPIO is shared w/ the SRAM (on 200k gate devices) using
- # this pin. All GPIO except gpio:30 (and gpio:20, though see comment
- # under SRAMResource) interface to the SRAM. On assertion, this signal
- # will tristate the level-shifters, preventing any output on the 5V
- # GPIO pins (including gpio:30 and gpio:20).
- Resource("bussw_oe", 0, PinsN("P30N", dir="o"),
- Attrs(IOSTANDARD="LVTTL"))
- ]
-
- # Perhaps define some connectors as having a specific purpose- i.e. a 5V GPIO
- # bus with data, peripheral-select, and control signals?
- connectors = [
- Connector("gpio", 0, """P59 P60 P61 P62 P64 P57
- P56 P52 P50 P49 P85 P84
- P83 P78 P77 P65 P70 P71
- P72 P73 P5 P4 P6 P98
- P94 P93 P90 P89 P88 P86"""), # 5V I/O- LVTTL.
- Connector("dio", 0, "P20 P32 P33 P34 P35 P36 P37"), # Fast 3.3V IO
- # (Directly attached to FPGA)- LVCMOS33.
- Connector("clkio", 0, "P40 P44"), # Clock IO (Can be used as GPIO)-
- # LVCMOS33.
- Connector("input", 0, "P68 P97 P7 P82"), # Input-only pins- LVCMOS33.
- Connector("led", 0, "P13 P15 P16 P19"), # LEDs can be used as pins
- # as well- LVTTL.
- Connector("pmod", 0, "P5 P4 P6 P98 P94 P93 P90 P89") # Baseboard PMOD.
- # Overlaps w/ GPIO bus.
- ]
-
- # Some default useful extensions. Attach to platform using:
- # p.add_resources(p.leds)
- # pmod_btn = plat.request("led")
- leds = [
- Resource("led", 0, Pins("1", dir="o", conn=("led", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("led", 1, Pins("2", dir="o", conn=("led", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("led", 2, Pins("3", dir="o", conn=("led", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("led", 3, Pins("4", dir="o", conn=("led", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- ]
-
- sram = [
- SRAMResource(0,
- cs_n="P3", we_n="gpio_0:29",
- # According to the schematic, A19/Pin 25 on the SRAM is wired to
- # gpio-0:20. However, according to the SRAM's datasheet, pin 25 is
- # a NC. Do not expose for now.
- a=""" gpio_0:1 gpio_0:2 gpio_0:3 gpio_0:4 gpio_0:5 gpio_0:6
- gpio_0:7 gpio_0:8 gpio_0:9 gpio_0:10 gpio_0:11 gpio_0:12
- gpio_0:13 gpio_0:14 gpio_0:15 gpio_0:16 gpio_0:17 gpio_0:18
- gpio_0:19""",
- d="""gpio_0:21 gpio_0:22 gpio_0:23 gpio_0:24 gpio_0:25 gpio_0:26
- gpio_0:27 gpio_0:28""",
- attrs=Attrs(IOSTANDARD="LVTTL", SLEW="FAST")
- )
- ]
-
- # The "serial port" is in fact over SPI. The creators of the board provide
- # a VHDL file for talking over this interface. In light of space
- # constraints and the fact that both the FT245RL and FPGA can BOTH be
- # SPI primaries, however, it may be necessary to sacrifice two "high-speed"
- # (DIO, INPUT) pins instead.
- serial = [
- # RX: FTDI D0, TX: FTDI D1
- UARTResource(0, rx="input_0:1", tx="dio_0:1",
- attrs=Attrs(IOSTANDARD="LVCMOS33"))
- ]
-
- # The remaining peripherals only make sense w/ the Baseboard installed.
- # See: http://www.micro-nova.com/mercury-baseboard/
- _switches = [
- Resource("switch", 0, Pins("1", dir="i", conn=("gpio", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("switch", 1, Pins("2", dir="i", conn=("gpio", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("switch", 2, Pins("3", dir="i", conn=("gpio", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("switch", 3, Pins("4", dir="i", conn=("gpio", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("switch", 4, Pins("5", dir="i", conn=("gpio", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("switch", 5, Pins("6", dir="i", conn=("gpio", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("switch", 6, Pins("7", dir="i", conn=("gpio", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("switch", 7, Pins("8", dir="i", conn=("gpio", 0)),
- Attrs(IOSTANDARD="LVTTL"))
- ]
-
- _buttons = [
- Resource("button", 1, Pins("1", dir="i", conn=("input", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("button", 2, Pins("2", dir="i", conn=("input", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("button", 3, Pins("3", dir="i", conn=("input", 0)),
- Attrs(IOSTANDARD="LVTTL")),
- Resource("button", 4, Pins("4", dir="i", conn=("input", 0)),
- Attrs(IOSTANDARD="LVTTL"))
- ]
-
- _vga = [
- VGAResource(0,
- r="dio_0:1 dio_0:2 dio_0:3",
- g="dio_0:4 dio_0:5 dio_0:6",
- b="dio_0:7 clkio_0:1",
- hs="led_0:3", vs="led_0:4", invert_sync=True,
- attrs=Attrs(IOSTANDARD="LVCMOS33", SLEW="FAST"))
- ]
-
- _extclk = [
- Resource("extclk", 0, Pins("1", dir="i", conn=("clkio", 1)),
- Attrs(IOSTANDARD="LVCMOS33"))
- ]
-
- _sevenseg = [
- Display7SegResource(0,
- a="gpio_0:13", b="gpio_0:14", c="gpio_0:15", d="gpio_0:16",
- e="gpio_0:17", f="gpio_0:18", g="gpio_0:19", dp="gpio_0:20",
- invert=True, attrs=Attrs(IOSTANDARD="LVTTL")
- ),
- Resource("display_7seg_ctrl", 0,
- Subsignal("en", Pins("9 10 11 12", dir="o", conn=("gpio", 0))),
- Attrs(IOSTANDARD="LVTTL")
- )
- ]
-
- _ps2 = [
- PS2Resource(0,
- clk="2", dat="1", conn=("led", 0), attrs=Attrs(IOSTANDARD="LVTTL")),
- ]
-
- _audio = [
- Resource("audio", 0,
- Subsignal("l", Pins("30", dir="o", conn=("gpio", 0))),
- Subsignal("r", Pins("29", dir="o", conn=("gpio", 0))),
- Attrs(IOSTANDARD="LVTTL")
- )
- ]
-
- baseboard_sram = _buttons + _vga + _extclk + _ps2
- baseboard_no_sram = baseboard_sram + _switches + _sevenseg + _audio
-
- def toolchain_program(self, products, name):
- # https://github.com/cr1901/mercpcl
- mercpcl = os.environ.get("MERCPCL", "mercpcl")
- with products.extract("{}.bin".format(name)) as bitstream_filename:
- subprocess.check_call([mercpcl, bitstream_filename])
-
-
-if __name__ == "__main__":
- from .test.blinky import *
- plat = MercuryPlatform()
- plat.add_resources(plat.leds)
- plat.build(Blinky(), do_program=True)
+import warnings
+warnings.warn("instead of nmigen_boards.mercury, use amaranth_boards.mercury",
+ DeprecationWarning, stacklevel=2)
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-26 18:45:17 +0000