aboutsummaryrefslogtreecommitdiff
path: root/amaranth_boards/arty_a7.py
diff options
context:
space:
mode:
Diffstat (limited to 'amaranth_boards/arty_a7.py')
-rw-r--r--amaranth_boards/arty_a7.py230
1 files changed, 230 insertions, 0 deletions
diff --git a/amaranth_boards/arty_a7.py b/amaranth_boards/arty_a7.py
new file mode 100644
index 0000000..3032349
--- /dev/null
+++ b/amaranth_boards/arty_a7.py
@@ -0,0 +1,230 @@
+import os
+import subprocess
+
+from amaranth.build import *
+from amaranth.vendor.xilinx_7series import *
+from .resources import *
+
+
+__all__ = ["ArtyA7_35Platform", "ArtyA7_100Platform"]
+
+
+class _ArtyA7Platform(Xilinx7SeriesPlatform):
+ package = "csg324"
+ speed = "1L"
+ default_clk = "clk100"
+ default_rst = "rst"
+ resources = [
+ Resource("clk100", 0, Pins("E3", dir="i"),
+ Clock(100e6), Attrs(IOSTANDARD="LVCMOS33")),
+ Resource("rst", 0, PinsN("C2", dir="i"), Attrs(IOSTANDARD="LVCMOS33")),
+
+ *LEDResources(pins="H5 J5 T9 T10", attrs=Attrs(IOSTANDARD="LVCMOS33")),
+
+ RGBLEDResource(0, r="G6", g="F6", b="E1", attrs=Attrs(IOSTANDARD="LVCMOS33")),
+ RGBLEDResource(1, r="G3", g="J4", b="G4", attrs=Attrs(IOSTANDARD="LVCMOS33")),
+ RGBLEDResource(2, r="J3", g="J2", b="H4", attrs=Attrs(IOSTANDARD="LVCMOS33")),
+ RGBLEDResource(3, r="K1", g="H6", b="K2", attrs=Attrs(IOSTANDARD="LVCMOS33")),
+
+ *ButtonResources(pins="D9 C9 B9 B8 ", attrs=Attrs(IOSTANDARD="LVCMOS33")),
+ *SwitchResources(pins="A8 C11 C10 A10", attrs=Attrs(IOSTANDARD="LVCMOS33")),
+
+ UARTResource(0,
+ rx="A9", tx="D10",
+ attrs=Attrs(IOSTANDARD="LVCMOS33")
+ ),
+
+ SPIResource(0,
+ cs_n="C1", clk="F1", copi="H1", cipo="G1",
+ attrs=Attrs(IOSTANDARD="LVCMOS33")
+ ),
+
+ Resource("i2c", 0,
+ Subsignal("scl", Pins("L18", dir="io")),
+ Subsignal("sda", Pins("M18", dir="io")),
+ Subsignal("scl_pullup", Pins("A14", dir="o")),
+ Subsignal("sda_pullup", Pins("A13", dir="o")),
+ Attrs(IOSTANDARD="LVCMOS33")
+ ),
+
+ *SPIFlashResources(0,
+ cs_n="L13", clk="L16", copi="K17", cipo="K18", wp_n="L14", hold_n="M14",
+ attrs=Attrs(IOSTANDARD="LVCMOS33")
+ ),
+
+ Resource("ddr3", 0,
+ Subsignal("rst", PinsN("K6", dir="o")),
+ Subsignal("clk", DiffPairs("U9", "V9", dir="o"), Attrs(IOSTANDARD="DIFF_SSTL135")),
+ Subsignal("clk_en", Pins("N5", dir="o")),
+ Subsignal("cs", PinsN("U8", dir="o")),
+ Subsignal("we", PinsN("P5", dir="o")),
+ Subsignal("ras", PinsN("P3", dir="o")),
+ Subsignal("cas", PinsN("M4", dir="o")),
+ Subsignal("a", Pins("R2 M6 N4 T1 N6 R7 V6 U7 R8 V7 R6 U6 T6 T8", dir="o")),
+ Subsignal("ba", Pins("R1 P4 P2", dir="o")),
+ Subsignal("dqs", DiffPairs("N2 U2", "N1 V2", dir="io"),
+ Attrs(IOSTANDARD="DIFF_SSTL135")),
+ Subsignal("dq", Pins("K5 L3 K3 L6 M3 M1 L4 M2 V4 T5 U4 V5 V1 T3 U3 R3", dir="io"),
+ Attrs(IN_TERM="UNTUNED_SPLIT_40")),
+ Subsignal("dm", Pins("L1 U1", dir="o")),
+ Subsignal("odt", Pins("R5", dir="o")),
+ Attrs(IOSTANDARD="SSTL135", SLEW="FAST"),
+ ),
+
+ Resource("eth_clk25", 0, Pins("G18", dir="o"),
+ Clock(25e6), Attrs(IOSTANDARD="LVCMOS33")),
+ Resource("eth_clk50", 0, Pins("G18", dir="o"),
+ Clock(50e6), Attrs(IOSTANDARD="LVCMOS33")),
+ Resource("eth_mii", 0,
+ Subsignal("rst", PinsN("C16", dir="o")),
+ Subsignal("mdio", Pins("K13", dir="io")),
+ Subsignal("mdc", Pins("F16", dir="o")),
+ Subsignal("tx_clk", Pins("H16", dir="i")),
+ Subsignal("tx_en", Pins("H15", dir="o")),
+ Subsignal("tx_data", Pins("H14 J14 J13 H17", dir="o")),
+ Subsignal("rx_clk", Pins("F15", dir="i")),
+ Subsignal("rx_dv", Pins("G16", dir="i"), Attrs(PULLDOWN="TRUE")), # strap to select MII
+ Subsignal("rx_er", Pins("C17", dir="i")),
+ Subsignal("rx_data", Pins("D18 E17 E18 G17", dir="i")),
+ Subsignal("col", Pins("D17", dir="i")),
+ Subsignal("crs", Pins("G14", dir="i")),
+ Attrs(IOSTANDARD="LVCMOS33")
+ ),
+ Resource("eth_rmii", 0,
+ Subsignal("rst", PinsN("C16", dir="o")),
+ Subsignal("mdio", Pins("K13", dir="io")),
+ Subsignal("mdc", Pins("F16", dir="o")),
+ Subsignal("tx_en", Pins("H15", dir="o")),
+ Subsignal("tx_data", Pins("H14 J14", dir="o")),
+ Subsignal("rx_crs_dv", Pins("G14", dir="i")),
+ Subsignal("rx_dv", Pins("G16", dir="i"), Attrs(PULLUP="TRUE")), # strap to select RMII
+ Subsignal("rx_er", Pins("C17", dir="i")),
+ Subsignal("rx_data", Pins("D18 E17", dir="i")),
+ Attrs(IOSTANDARD="LVCMOS33")
+ )
+ ]
+ connectors = [
+ Connector("pmod", 0, "G13 B11 A11 D12 - - D13 B18 A18 K16 - -"), # JA
+ Connector("pmod", 1, "E15 E16 D15 C15 - - J17 J18 K15 J15 - -"), # JB
+ Connector("pmod", 2, "U12 V12 V10 V11 - - U14 V14 T13 U13 - -"), # JC
+ Connector("pmod", 3, " D4 D3 F4 F3 - - E2 D2 H2 G2 - -"), # JD
+
+ Connector("ck_io", 0, {
+ # Outer Digital Header
+ "io0": "V15",
+ "io1": "U16",
+ "io2": "P14",
+ "io3": "T11",
+ "io4": "R12",
+ "io5": "T14",
+ "io6": "T15",
+ "io7": "T16",
+ "io8": "N15",
+ "io9": "M16",
+ "io10": "V17",
+ "io11": "U18",
+ "io12": "R17",
+ "io13": "P17",
+
+ # Inner Digital Header
+ "io26": "U11",
+ "io27": "V16",
+ "io28": "M13",
+ "io29": "R10",
+ "io30": "R11",
+ "io31": "R13",
+ "io32": "R15",
+ "io33": "P15",
+ "io34": "R16",
+ "io35": "N16",
+ "io36": "N14",
+ "io37": "U17",
+ "io38": "T18",
+ "io39": "R18",
+ "io40": "P18",
+ "io41": "N17",
+
+ # Outer Analog Header as Digital IO
+ "a0": "F5",
+ "a1": "D8",
+ "a2": "C7",
+ "a3": "E7",
+ "a4": "D7",
+ "a5": "D5",
+
+ # Inner Analog Header as Digital IO
+ "io20": "B7",
+ "io21": "B6",
+ "io22": "E6",
+ "io23": "E5",
+ "io24": "A4",
+ "io25": "A3"
+ }),
+ Connector("xadc", 0, {
+ # Outer Analog Header
+ "vaux4_n": "C5",
+ "vaux4_p": "C6",
+ "vaux5_n": "A5",
+ "vaux5_p": "A6",
+ "vaux6_n": "B4",
+ "vaux6_p": "C4",
+ "vaux7_n": "A1",
+ "vaux7_p": "B1",
+ "vaux15_n": "B2",
+ "vaux15_p": "B3",
+ "vaux0_n": "C14",
+ "vaux0_p": "D14",
+
+ # Inner Analog Header
+ "vaux12_n": "B7",
+ "vaux12_p": "B6",
+ "vaux13_n": "E6",
+ "vaux13_p": "E5",
+ "vaux14_n": "A4",
+ "vaux14_p": "A3",
+
+ # Power Measurements
+ "vsnsuv_n": "B17",
+ "vsnsuv_p": "B16",
+ "vsns5v0_n": "B12",
+ "vsns5v0_p": "C12",
+ "isns5v0_n": "F14",
+ "isns5v0_n": "F13",
+ "isns0v95_n": "A16",
+ "isns0v95_n": "A15",
+ })
+ ]
+
+ def toolchain_prepare(self, fragment, name, **kwargs):
+ overrides = {
+ "script_before_bitstream":
+ "set_property BITSTREAM.CONFIG.SPI_BUSWIDTH 4 [current_design]",
+ "script_after_bitstream":
+ "write_cfgmem -force -format bin -interface spix4 -size 16 "
+ "-loadbit \"up 0x0 {name}.bit\" -file {name}.bin".format(name=name),
+ "add_constraints":
+ """
+ set_property INTERNAL_VREF 0.675 [get_iobanks 34]
+ set_property CFGBVS VCCO [current_design]
+ set_property CONFIG_VOLTAGE 3.3 [current_design]
+ """
+ }
+ return super().toolchain_prepare(fragment, name, **overrides, **kwargs)
+
+ def toolchain_program(self, products, name):
+ xc3sprog = os.environ.get("XC3SPROG", "xc3sprog")
+ with products.extract("{}.bit".format(name)) as bitstream_filename:
+ subprocess.run([xc3sprog, "-c", "nexys4", bitstream_filename], check=True)
+
+
+class ArtyA7_35Platform(_ArtyA7Platform):
+ device = "xc7a35ti"
+
+
+class ArtyA7_100Platform(_ArtyA7Platform):
+ device = "xc7a100ti"
+
+
+if __name__ == "__main__":
+ from .test.blinky import *
+ ArtyA7_35Platform().build(Blinky(), do_program=True)
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-26 21:29:09 +0000