forked from M-Labs/humpback-dds
migen: beaufity eem res struct
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@ -1,5 +1,5 @@
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[target.thumbv7em-none-eabihf]
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runner = "gdb -q -x gdb_config/openocd.gdb"
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runner = "gdb -q -x gdb_config/fpga_config.gdb"
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rustflags = [
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"-C", "link-arg=-Tlink.x",
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]
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@ -10,72 +10,61 @@ from migen.genlib.io import DifferentialInput
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class UrukulConnector(Module):
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def __init__(self, platform):
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# Request EEM I/O & SPI
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# eem = platform.request("eem", 0)
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eem0 = platform.request("eem0", 0);
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eem1 = platform.request("eem0", 1);
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# eem2 = platform.request("eem0", 2);
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eem2 = platform.request("eem0_n", 2);
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# _ignore_eem2 = platform.request("eem0_n", 2);
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# miso = platform.request("miso", 0);
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eem3 = platform.request("eem0", 3);
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eem4 = platform.request("eem0", 4);
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eem5 = platform.request("eem0", 5);
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eem0 = [
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platform.request("eem0", 0),
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platform.request("eem0", 1),
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platform.request("eem0_n", 2),
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platform.request("eem0", 3),
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platform.request("eem0", 4),
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platform.request("eem0", 5)
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]
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spi = platform.request("spi")
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led = platform.request("user_led")
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# Assert signal length
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# TODO: Refactor assertion
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# Assert SPI resource length
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assert len(spi.sclk) == 1
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assert len(spi.mosi) == 1
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# assert len(spi.miso) == 1
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assert len(spi.miso) == 1
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assert len(spi.cs) == 3
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# Flip positive signal as negative output, maybe only do it for FPGA outputs
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# self.comb += eem.n.eq(~eem.p)
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self.miso_n = Signal()
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self.sdo = Signal()
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# TODO: Assert EEM resources
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assert isinstance(eem0, list)
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# Flip positive signal as negative output, maybe only do it for FPGA outputs
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self.miso_n = Signal()
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# Very similar setup to Diff setup for iCE40 suggested, but gave B pin instead
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self.specials += Instance("SB_IO",
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p_PIN_TYPE=C(0b000001, 6),
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p_IO_STANDARD="SB_LVDS_INPUT",
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io_PACKAGE_PIN=eem2,
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i_D_OUT_0=self.sdo,
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io_PACKAGE_PIN=eem0[2],
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o_D_IN_0=self.miso_n
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)
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# self.submodules += LatticeiCE40DifferentialInputImpl(eem2.p, eem2.n, spi.miso)
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# self.specials += DifferentialInput(eem2, None, spi.miso)
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# Link EEM to SPI
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self.comb += [
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eem0.p.eq(spi.sclk),
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eem0.n.eq(~spi.sclk),
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eem0[0].p.eq(spi.sclk),
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eem0[0].n.eq(~spi.sclk),
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eem1.p.eq(spi.mosi),
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eem1.n.eq(~spi.mosi),
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eem0[1].p.eq(spi.mosi),
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eem0[1].n.eq(~spi.mosi),
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# spi.miso.eq(eem2.p),
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spi.miso.eq(~self.miso_n),
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eem3.p.eq(spi.cs[0]),
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eem3.n.eq(~spi.cs[0]),
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eem0[3].p.eq(spi.cs[0]),
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eem0[3].n.eq(~spi.cs[0]),
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eem4.p.eq(spi.cs[1]),
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eem4.n.eq(~spi.cs[1]),
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eem0[4].p.eq(spi.cs[1]),
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eem0[4].n.eq(~spi.cs[1]),
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eem5.p.eq(spi.cs[2]),
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eem5.n.eq(~spi.cs[2]),
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eem0[5].p.eq(spi.cs[2]),
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eem0[5].n.eq(~spi.cs[2]),
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led.eq(1)
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]
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# Debug purposes: Tie EEM MISO to EEM MOSI
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# self.comb += eem.p[2].eq(eem.p[1])
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if __name__ == "__main__":
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platform = HumpbackPlatform()
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platform.build(UrukulConnector(platform))
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38
src/main.rs
38
src/main.rs
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@ -24,6 +24,7 @@ use firmware::{
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config_register::{
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ConfigRegister,
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CFGMask,
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StatusMask,
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},
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dds::DDS,
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};
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@ -99,14 +100,13 @@ fn main() -> ! {
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let mut config = ConfigRegister::new(parts.spi1);
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let mut att = Attenuator::new(parts.spi2);
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let mut dds0 = DDS::new(parts.spi4);
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loop {
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// let mut counter = config.get_configuration(CFGMask::RF_SW);
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// hprintln!("{}", counter);
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// config.set_configurations(&mut [
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// (CFGMask::RF_SW, ((counter + 1)%16) as u32)
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// ]).unwrap();
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hprintln!("{:?}", att.set_attenuation([33.0, -1.0, 24.0, 12.0]).unwrap()).unwrap();
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hprintln!("{:?}", att.set_attenuation([0.0, 0.0, 0.0, 0.0]).unwrap()).unwrap();
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let mut counter = config.get_status(StatusMask::RF_SW).unwrap();
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hprintln!("{}", counter);
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config.set_configurations(&mut [
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(CFGMask::RF_SW, ((counter + 1)%16) as u32)
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]).unwrap();
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}
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/*
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@ -114,12 +114,26 @@ fn main() -> ! {
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cs1.set_low().unwrap();
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cs2.set_low().unwrap();
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let mut arr: [u8; 4] = [0x12, 0x34, 0x56, 0x78];
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cs2.set_high().unwrap();
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let mut arr: [u8; 5] = [0x00, 0x00, 0x00, 0x00, 0x02];
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hprintln!("Feedback of conf: {:?}", spi.transfer(&mut arr).unwrap()).unwrap();
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cs2.set_low().unwrap();
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arr[0] = 0x80;
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arr[1] = 0;
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arr[2] = 0;
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arr[3] = 0;
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arr[4] = 0;
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cs1.set_high().unwrap();
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hprintln!("first proper feedback: {:?}", spi.transfer(&mut arr).unwrap()).unwrap();
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cs1.set_low().unwrap();
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loop {
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arr[0] = 0x12;
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arr[1] = 0x34;
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arr[2] = 0x56;
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arr[3] = 0x78;
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arr[0] = 0x81;
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arr[1] = 0;
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arr[2] = 0;
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arr[3] = 0;
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arr[4] = 0;
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cs1.set_high().unwrap();
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hprintln!("{:?}", spi.transfer(&mut arr).unwrap()).unwrap();
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cs1.set_low().unwrap();
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