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import os
import subprocess
from amaranth.build import *
from amaranth.vendor import XilinxPlatform
from .resources import *
"""
Example Usage:
platform = CModS7_Platform(toolchain="Symbiflow")
platform.build(Top(), do_program=True)
Supported programmer:
openocd
"""
__all__ = ["CmodS7_Platform"]
class CmodS7_Platform(XilinxPlatform):
device = "xc7s25"
package = "csga225"
speed = "1"
default_clk = "clk12"
resources = [
Resource("clk12", 0, Pins("M9", dir="i"),
Clock(12e6), Attrs(IOSTANDARD="LVCMOS33")),
*LEDResources(pins="E2 K1 J1 E1", attrs=Attrs(IOSTANDARD="LVCMOS33")),
RGBLEDResource(0, r="F2", g="D3", b="F1", invert=True,
attrs=Attrs(IOSTANDARD="LVCMOS33")),
*ButtonResources(pins="D2 D1", attrs=Attrs(IOSTANDARD="LVCMOS33")),
UARTResource(0,
rx="K15", tx="L12",
attrs=Attrs(IOSTANDARD="LVCMOS33")
),
# Clock only via STARTUPE2 primitive
*SPIFlashResources(0,
cs_n="L11", clk="F5", copi="H14", cipo="H15", wp_n="J12",
hold_n="K13",
attrs=Attrs(IOSTANDARD="LVCMOS33")
),
# One-wire interface to crypto authentication device
# May not be populated on the board
Resource("atsha204a", 0, Pins("D17", dir="io"),
Attrs(IOSTANDARD="LVCMOS33"))
]
connectors = [
Connector("pmod", 0, "J2 H2 H4 F3 - - H3 H1 G1 F4 - -"), # JA
# Pin 24/25 are VCC and GND
# Pin 32/33 are analog (XADC)
# Pin 9-15 and 34-39 do not exist
Connector("gpio", 0,
"""
L1 M4 M3 N2 M2 P3 N3 P1 N1 - - -
- - - P14 P15 N13 N15 N14 M15 M14 L15 -
- L14 K14 J15 L13 M13 J11 - - - - -
- - - C5 A2 B2 B1 C1 B3 B4 A3 A4
"""),
Connector("xadc", 0, {
"vaux5_n": "A13",
"vaux5_p": "A14",
"vaux12_n": "A11",
"vaux12_p": "A12"
})
]
def toolchain_program(self, products, name):
with products.extract("{}.bit".format(name)) as bitstream_filename:
subprocess.check_call(["openFPGALoader",
"-c", "digilent",
"--fpga-part", "xc7s25",
"{}".format(bitstream_filename)
])
if __name__ == "__main__":
from .test.blinky import *
CmodS7_Platform().build(Blinky(), do_program=True)
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