forked from M-Labs/humpback-dds
humpback: added SPI
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@ -45,15 +45,6 @@ class HumpbackPlatform(LatticeICE40Platform):
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# attrs=Attrs(IO_STANDARD="SB_LVCMOS", PULLUP=1)
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# attrs=Attrs(IO_STANDARD="SB_LVCMOS", PULLUP=1)
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# ),
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# ),
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# Define SPI interfaces
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# TODO; Make it optional, define it in a block
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# Note: Use "role=device" to make humpback a SPI slave
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# The ~CS pin is a global pin, but not being configured global.
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SPIResource(0,
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cs="R2", clk="C8", mosi="N5", miso="T2",
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attrs=Attrs(IO_STANDARD="SB_LVCMOS")
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),
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# Define I2C interface
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# Define I2C interface
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# TODO: Make it optional, declare it in a block itself
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# TODO: Make it optional, declare it in a block itself
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# Use "role=device" to make humpback a I2C slave
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# Use "role=device" to make humpback a I2C slave
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@ -64,7 +55,6 @@ class HumpbackPlatform(LatticeICE40Platform):
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]
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]
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# Using the dict approach in (o)migen
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# Using the dict approach in (o)migen
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# Note: Numbering is required in nMigen, so some probably not very meaningful strings/integers are inserted
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connectors = [
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connectors = [
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# EEM0 Connector
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# EEM0 Connector
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@ -91,45 +81,45 @@ class HumpbackPlatform(LatticeICE40Platform):
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Connector("eem", 1, {
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Connector("eem", 1, {
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"d0_cc_n": "L3",
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"d0_cc_n": "L3",
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"d0_cc_p": "L6",
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"d0_cc_p": "L6",
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"d1_n": "F1",
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"d1_n" : "F1",
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"d1_p": "H6",
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"d1_p" : "H6",
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"d2_n": "G2",
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"d2_n" : "G2",
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"d2_p": "H4",
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"d2_p" : "H4",
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"d3_n": "H2",
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"d3_n" : "H2",
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"d3_p": "J4",
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"d3_p" : "J4",
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"d4_n": "J1",
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"d4_n" : "J1",
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"d4_p": "J2",
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"d4_p" : "J2",
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"d5_n": "K3",
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"d5_n" : "K3",
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"d5_p": "K1",
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"d5_p" : "K1",
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"d6_n": "L1",
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"d6_n" : "L1",
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"d6_p": "L4",
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"d6_p" : "L4",
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"d7_n": "M1",
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"d7_n" : "M1",
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"d7_p": "K4",
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"d7_p" : "K4",
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}),
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}),
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# EEM2 Connector
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# EEM2 Connector
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Connector("eem", 2, {
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Connector("eem", 2, {
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"d0_cc_n": "G1",
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"d0_cc_n": "G1",
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"d0_cc_p": "J5",
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"d0_cc_p": "J5",
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"d1_n": "M2",
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"d1_n" : "M2",
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"d1_p": "K5",
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"d1_p" : "K5",
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"d2_n": "N2",
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"d2_n" : "N2",
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"d2_p": "L7",
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"d2_p" : "L7",
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"d3_n": "M3",
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"d3_n" : "M3",
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"d3_p": "M6",
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"d3_p" : "M6",
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"d4_n": "N3",
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"d4_n" : "N3",
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"d4_p": "L5",
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"d4_p" : "L5",
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"d5_n": "M4",
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"d5_n" : "M4",
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"d5_p": "P1",
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"d5_p" : "P1",
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"d6_n": "M5",
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"d6_n" : "M5",
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"d6_p": "P2",
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"d6_p" : "P2",
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"d7_n": "N4",
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"d7_n" : "N4",
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"d7_p": "R1",
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"d7_p" : "R1",
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}),
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}),
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# STM32 Nucleo/ Arduino Connector
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# STM32 Nucleo/ Arduino Connector
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# TODO: Suspect SPI mismatch forever
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# TODO: Suspect SPI mismatch forever
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Connector("stm32", "pins", {
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Connector("stm32", 0, {
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"PA0": "A2",
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"PA0": "A2",
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# "PA1": "P14", # PA1 -> PB2, but PB2 has a mapping on FPGA already
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# "PA1": "P14", # PA1 -> PB2, but PB2 has a mapping on FPGA already
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# "PA2": "B8", # PA2 -> PF6
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# "PA2": "B8", # PA2 -> PF6
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@ -228,7 +218,7 @@ class HumpbackPlatform(LatticeICE40Platform):
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}),
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}),
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# Beaglebone Black Connector
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# Beaglebone Black Connector
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Connector("bb", "pins", {
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Connector("bb", 0, {
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"CLKOUT": "R9",
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"CLKOUT": "R9",
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"GPIO0_7": "R14",
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"GPIO0_7": "R14",
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@ -281,7 +271,7 @@ class HumpbackPlatform(LatticeICE40Platform):
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}),
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}),
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# ESP32 Connector
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# ESP32 Connector
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Connector("esp32", "pins", {
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Connector("esp32", 0, {
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"IO2": "D9",
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"IO2": "D9",
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"IO4": "D7",
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"IO4": "D7",
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"IO22": "C7",
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"IO22": "C7",
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@ -290,11 +280,12 @@ class HumpbackPlatform(LatticeICE40Platform):
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}),
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}),
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# OrangePI Zero Connector
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# OrangePI Zero Connector
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Connector("orange_pi", "pins", {
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Connector("orange_pi", 0, {
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"PG06": "A15",
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"PG06": "A15",
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}),
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}),
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]
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]
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# Half completed, second EEM resource to be added
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eem_to_urukul = [
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eem_to_urukul = [
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Resource("eem", 1,
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Resource("eem", 1,
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Subsignal("sclk", DiffPairs("L6", "L3", dir="o", conn=("eem", 1))),
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Subsignal("sclk", DiffPairs("L6", "L3", dir="o", conn=("eem", 1))),
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@ -308,6 +299,17 @@ class HumpbackPlatform(LatticeICE40Platform):
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)
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)
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]
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]
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# SPI Connection
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spi = [
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Resource("spi", 0,
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Subsignal("cs", PinsN("R2", dir="i", conn=("stm32", 0))),
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Subsignal("mosi", Pins("N5", dir="i", conn=("stm32", 0))),
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Subsignal("miso", Pins("T2", dir="oe", conn=("stm32", 0))),
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Subsignal("sck", Pins("C8", dir="i", conn=("stn32", 0))),
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Attrs(IO_STANDARD="SB_LVCMOS")
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)
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]
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# tool chain setup, using default ICE40 HX8K evaluation code
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# tool chain setup, using default ICE40 HX8K evaluation code
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def toolchain_program(self, products, name):
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def toolchain_program(self, products, name):
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iceprog = os.environ.get("ICEPROG", "iceprog")
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iceprog = os.environ.get("ICEPROG", "iceprog")
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@ -318,5 +320,6 @@ if __name__ == "__main__":
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from nmigen_boards.test.blinky import *
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from nmigen_boards.test.blinky import *
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platform = HumpbackPlatform()
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platform = HumpbackPlatform()
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platform.add_resources(platform.eem_to_urukul)
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platform.add_resources(platform.eem_to_urukul)
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platform.add_resources(platform.spi)
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platform.build(Blinky(), do_program=False)
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platform.build(Blinky(), do_program=False)
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