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sayma: 1GSPS WIP

This commit is contained in:
Sebastien Bourdeauducq 2020-08-29 19:17:11 +08:00
parent b2572003ac
commit 433c3bb8f9
8 changed files with 41 additions and 78 deletions
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8
artiq/firmware/libboard_artiq/ad9154.rs
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@ -34,9 +34,9 @@ fn read(addr: u16) -> u8 {
}
// ad9154 mode 1
// linerate 5Gbps or 6Gbps
// deviceclock_fpga 125MHz or 150MHz
// deviceclock_dac 500MHz or 600MHz
// linerate 10Gbps
// deviceclock_fpga 125MHz
// deviceclock_dac 1000MHz
struct JESDSettings {
did: u8,
@ -146,7 +146,7 @@ pub fn setup(dacno: u8, linerate: u64) -> Result<(), &'static str> {
write(ad9154_reg::SPI_PAGEINDX, 0x3); // A and B dual
write(ad9154_reg::INTERP_MODE, 0x03); // 4x
write(ad9154_reg::INTERP_MODE, 0x01); // 2x
write(ad9154_reg::MIX_MODE, 0);
write(ad9154_reg::DATA_FORMAT, 0*ad9154_reg::BINARY_FORMAT); // s16
write(ad9154_reg::DATAPATH_CTRL,

6
artiq/firmware/libboard_artiq/hmc830_7043.rs
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@ -157,7 +157,7 @@ pub mod hmc7043 {
(false, FPGA_CLK_DIV, 0x10, true), // 5: AMC_FPGA_SYSREF1
(false, 0, 0x10, false), // 6: unused
(true, FPGA_CLK_DIV, 0x10, true), // 7: RTM_FPGA_SYSREF0
(true, FPGA_CLK_DIV, 0x08, false), // 8: GTP_CLK0_IN
(true, FPGA_CLK_DIV/2, 0x08, false), // 8: GTP_CLK0_IN
(false, 0, 0x10, false), // 9: unused
(false, 0, 0x10, false), // 10: unused
(false, 0, 0x08, false), // 11: unused / uFL
@ -393,8 +393,6 @@ pub mod hmc7043 {
pub fn init() -> Result<(), &'static str> {
#[cfg(all(hmc830_ref = "125", rtio_frequency = "125.0"))]
const DIV: (u32, u32, u32, u32) = (2, 32, 0, 1); // 125MHz -> 2.0GHz
#[cfg(all(hmc830_ref = "150", rtio_frequency = "150.0"))]
const DIV: (u32, u32, u32, u32) = (2, 32, 0, 1); // 150MHz -> 2.4GHz
/* do not use other SPI devices before HMC830 SPI mode selection */
hmc830::select_spi_mode();
@ -406,7 +404,7 @@ pub fn init() -> Result<(), &'static str> {
hmc830::check_locked()?;
if hmc7043::get_id() == hmc7043::CHIP_ID {
error!("HMC7043 detected while in reset (board rework missing?)");
error!("HMC7043 detected while in reset");
}
hmc7043::enable();
hmc7043::detect()?;

13
artiq/firmware/runtime/rtio_clocking.rs
View File

@ -119,19 +119,6 @@ fn setup_si5324_as_synthesizer() {
bwsel : 4,
crystal_ref: true
};
// 150MHz output, from crystal
#[cfg(all(rtio_frequency = "150.0", not(si5324_ext_ref)))]
const SI5324_SETTINGS: si5324::FrequencySettings
= si5324::FrequencySettings {
n1_hs : 9,
nc1_ls : 4,
n2_hs : 10,
n2_ls : 33732,
n31 : 9370,
n32 : 7139,
bwsel : 3,
crystal_ref: true
};
// 100MHz output, from crystal. Also used as reference for Sayma HMC830.
#[cfg(all(rtio_frequency = "100.0", not(si5324_ext_ref)))]
const SI5324_SETTINGS: si5324::FrequencySettings

17
artiq/firmware/satman/main.rs
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@ -302,9 +302,7 @@ fn process_aux_packet(_repeaters: &mut [repeater::Repeater],
#[cfg(has_ad9154)]
let (succeeded, retval) = {
#[cfg(rtio_frequency = "125.0")]
const LINERATE: u64 = 5_000_000_000;
#[cfg(rtio_frequency = "150.0")]
const LINERATE: u64 = 6_000_000_000;
const LINERATE: u64 = 10_000_000_000;
match _reqno {
jdac_common::INIT => (board_artiq::ad9154::setup(_dacno, LINERATE).is_ok(), 0),
jdac_common::PRINT_STATUS => { board_artiq::ad9154::status(_dacno); (true, 0) },
@ -419,19 +417,6 @@ fn hardware_tick(ts: &mut u64) {
}
}
#[cfg(all(has_si5324, rtio_frequency = "150.0"))]
const SI5324_SETTINGS: si5324::FrequencySettings
= si5324::FrequencySettings {
n1_hs : 6,
nc1_ls : 6,
n2_hs : 10,
n2_ls : 270,
n31 : 75,
n32 : 75,
bwsel : 4,
crystal_ref: true
};
#[cfg(all(has_si5324, rtio_frequency = "125.0"))]
const SI5324_SETTINGS: si5324::FrequencySettings
= si5324::FrequencySettings {

20
artiq/gateware/jesd204_tools.py
View File

@ -15,30 +15,26 @@ from jesd204b.core import JESD204BCoreTXControl
class UltrascaleCRG(Module, AutoCSR):
linerate = int(6e9)
refclk_freq = int(150e6)
linerate = int(10e9) # linerate = 20*data_rate*4/8 = data_rate*10
refclk_freq = int(250e6)
fabric_freq = int(125e6)
def __init__(self, platform, use_rtio_clock=False):
def __init__(self, platform):
self.jreset = CSRStorage(reset=1)
self.refclk = Signal()
self.clock_domains.cd_jesd = ClockDomain()
refclk2 = Signal()
refclk_pads = platform.request("dac_refclk", 0)
platform.add_period_constraint(refclk_pads.p, 1e9/self.refclk_freq)
self.specials += [
Instance("IBUFDS_GTE3", i_CEB=0, p_REFCLK_HROW_CK_SEL=0b00,
Instance("IBUFDS_GTE3", i_CEB=0, p_REFCLK_HROW_CK_SEL=0b01,
i_I=refclk_pads.p, i_IB=refclk_pads.n,
o_O=self.refclk, o_ODIV2=refclk2),
AsyncResetSynchronizer(self.cd_jesd, self.jreset.storage),
o_O=self.refclk),
]
if use_rtio_clock:
self.cd_jesd.clk.attr.add("keep")
self.comb += self.cd_jesd.clk.eq(ClockSignal("rtio"))
else:
self.specials += Instance("BUFG_GT", i_I=refclk2, o_O=self.cd_jesd.clk)
self.specials += AsyncResetSynchronizer(self.cd_jesd, self.jreset.storage)
PhyPads = namedtuple("PhyPads", "txp txn")
@ -68,7 +64,7 @@ class UltrascaleTX(Module, AutoCSR):
phys.append(phy)
self.submodules.core = JESD204BCoreTX(
phys, settings, converter_data_width=64)
phys, settings, converter_data_width=128)
self.submodules.control = JESD204BCoreTXControl(self.core)
self.core.register_jsync(platform.request("dac_sync", dac))
@ -92,7 +88,7 @@ class DDMTDEdgeDetector(Module):
# See "Digital femtosecond time difference circuit for CERN's timing system"
# by P. Moreira and I. Darwazeh
class DDMTD(Module, AutoCSR):
def __init__(self, input_pads, rtio_clk_freq=150e6):
def __init__(self, input_pads, rtio_clk_freq=125e6):
N = 64
self.reset = CSRStorage(reset=1)
self.locked = CSRStatus()

2
artiq/gateware/targets/metlino.py
View File

@ -52,7 +52,7 @@ class Master(MiniSoC, AMPSoC):
add_identifier(self)
platform = self.platform
rtio_clk_freq = 150e6
rtio_clk_freq = 125e6
self.comb += platform.request("input_clk_sel").eq(1)
self.comb += platform.request("filtered_clk_sel").eq(1)

21
artiq/gateware/targets/sayma_amc.py
View File

@ -193,7 +193,7 @@ class JDCGSAWG(Module, AutoCSR):
self.submodules.jesd = jesd204_tools.UltrascaleTX(
platform, sys_crg, jesd_crg, dac)
self.submodules.sawgs = [sawg.Channel(width=16, parallelism=4) for i in range(4)]
self.submodules.sawgs = [sawg.Channel(width=16, parallelism=8) for i in range(4)]
for conv, ch in zip(self.jesd.core.sink.flatten(), self.sawgs):
assert len(Cat(ch.o)) == len(conv)
@ -210,26 +210,26 @@ class JDCGPattern(Module, AutoCSR):
ramp = Signal(4)
self.sync.rtio += ramp.eq(ramp + 1)
samples = [[Signal(16) for i in range(4)] for j in range(4)]
samples = [[Signal(16) for i in range(8)] for j in range(4)]
self.comb += [
a.eq(Cat(b)) for a, b in zip(
self.jesd.core.sink.flatten(), samples)
]
# ch0: 16-step ramp with big carry toggles
for i in range(4):
for i in range(8):
self.comb += [
samples[0][i][-4:].eq(ramp),
samples[0][i][:-4].eq(0x7ff if i % 2 else 0x800)
]
# ch1: 50 MHz
from math import pi, cos
data = [int(round(cos(i/12*2*pi)*((1 << 15) - 1)))
for i in range(12)]
data = [int(round(cos(i/24*2*pi)*((1 << 15) - 1)))
for i in range(24)]
k = Signal(2)
self.sync.rtio += If(k == 2, k.eq(0)).Else(k.eq(k + 1))
self.comb += [
Case(k, {
i: [samples[1][j].eq(data[i*4 + j]) for j in range(4)]
i: [samples[1][j].eq(data[i*8 + j]) for j in range(8)]
for i in range(3)
})
]
@ -249,7 +249,7 @@ class JDCGSyncDDS(Module, AutoCSR):
self.sawgs = []
ftw = round(2**len(self.coarse_ts)*9e6/600e6)
parallelism = 4
parallelism = 8
mul_1 = Signal.like(self.coarse_ts)
mul_2 = Signal.like(self.coarse_ts)
@ -287,9 +287,7 @@ class Satellite(SatelliteBase):
DRTIO satellite with local DAC/SAWG channels.
"""
def __init__(self, jdcg_type, **kwargs):
SatelliteBase.__init__(self, 150e6,
identifier_suffix="." + jdcg_type,
**kwargs)
SatelliteBase.__init__(self, identifier_suffix="." + jdcg_type, **kwargs)
platform = self.platform
@ -323,8 +321,7 @@ class Satellite(SatelliteBase):
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy))
self.submodules.jesd_crg = jesd204_tools.UltrascaleCRG(
platform, use_rtio_clock=True)
self.submodules.jesd_crg = jesd204_tools.UltrascaleCRG(platform)
cls = {
"sawg": JDCGSAWG,
"pattern": JDCGPattern,

2
artiq/gateware/targets/sayma_rtm.py
View File

@ -297,7 +297,7 @@ def main():
builder_args(parser)
soc_sayma_rtm_args(parser)
parser.add_argument("--rtio-clk-freq",
default=150, type=int, help="RTIO clock frequency in MHz")
default=125, type=int, help="RTIO clock frequency in MHz")
parser.add_argument("--with-wrpll", default=False, action="store_true")
parser.set_defaults(output_dir=os.path.join("artiq_sayma", "rtm"))
args = parser.parse_args()