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phaser: dac and trf register maps, init code

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This commit is contained in:
Robert Jördens 2020-09-22 14:08:39 +00:00
parent 3e036e365a
commit fd5e221898
3 changed files with 468 additions and 220 deletions
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262
artiq/coredevice/dac34h84.py Normal file
View File

@ -0,0 +1,262 @@
class DAC34H84:
"""DAC34H84 settings and register map.
For possible values, documentation, and explanation, see the DAC datasheet
at https://www.ti.com/lit/pdf/slas751
"""
qmc_corr_ena = 0 # msb ab
qmc_offset_ena = 0 # msb ab
invsinc_ena = 0 # msb ab
interpolation = 1 # 2x
fifo_ena = 1
alarm_out_ena = 1
alarm_out_pol = 1
clkdiv_sync_ena = 1
iotest_ena = 0
cnt64_ena = 0
oddeven_parity = 0 # even
single_parity_ena = 1
dual_parity_ena = 0
rev_interface = 0
dac_complement = 0b0000 # msb A
alarm_fifo = 0b111 # msb 2-away
dacclkgone_ena = 1
dataclkgone_ena = 1
collisiongone_ena = 1
sif4_ena = 1
mixer_ena = 0
mixer_gain = 1
nco_ena = 0
revbus = 0
twos = 1
coarse_dac = 0xa # 20.6 mA, 0-15
sif_txenable = 0
mask_alarm_from_zerochk = 0
mask_alarm_fifo_collision = 0
mask_alarm_fifo_1away = 0
mask_alarm_fifo_2away = 0
mask_alarm_dacclk_gone = 0
mask_alarm_dataclk_gone = 0
mask_alarm_output_gone = 0
mask_alarm_from_iotest = 0
mask_alarm_from_pll = 0
mask_alarm_parity = 0b0000 # msb a
qmc_offseta = 0 # 12b
fifo_offset = 2 # 0-7
qmc_offsetb = 0 # 12b
qmc_offsetc = 0 # 12b
qmc_offsetd = 0 # 12b
qmc_gaina = 0 # 11b
cmix_fs8 = 0
cmix_fs4 = 0
cmix_fs2 = 0
cmix_nfs4 = 0
qmc_gainb = 0 # 11b
qmc_gainc = 0 # 11b
output_delayab = 0b00
output_delaycd = 0b00
qmc_gaind = 0 # 11b
qmc_phaseab = 0 # 12b
qmc_phasecd = 0 # 12b
pll_reset = 0
pll_ndivsync_ena = 1
pll_ena = 1
pll_cp = 0b01 # single charge pump
pll_p = 0b100 # p=4
pll_m2 = 1 # x2
pll_m = 8 # m = 8
pll_n = 0b0001 # n = 2
pll_vcotune = 0b01
pll_vco = 0x3f # 4 GHz
bias_sleep = 0
tsense_sleep = 0
pll_sleep = 0
clkrecv_sleep = 0
dac_sleep = 0b0000 # msb a
extref_ena = 0
fuse_sleep = 1
atest = 0b00000 # atest mode
syncsel_qmcoffsetab = 0b1001 # sif_sync and register write
syncsel_qmcoffsetcd = 0b1001 # sif_sync and register write
syncsel_qmccorrab = 0b1001 # sif_sync and register write
syncsel_qmccorrcd = 0b1001 # sif_sync and register write
syncsel_mixerab = 0b1001 # sif_sync and register write
syncsel_mixercd = 0b1001 # sif_sync and register write
syncsel_nco = 0b1000 # sif_sync
syncsel_fifo_input = 0b10 # external lvds istr
sif_sync = 1
syncsel_fifoin = 0b0010 # istr
syncsel_fifoout = 0b0100 # ostr
clkdiv_sync_sel = 0 # ostr
path_a_sel = 0b00
path_b_sel = 0b01
path_c_sel = 0b10
path_d_sel = 0b11
# reverse dacs (DCBA) for spectral inversion and layout
dac_a_sel = 0b11
dac_b_sel = 0b10
dac_c_sel = 0b01
dac_d_sel = 0b00
dac_sleep_en = 0b1111 # msb a
clkrecv_sleep_en = 1
pll_sleep_en = 1
lvds_data_sleep_en = 1
lvds_control_sleep_en = 1
temp_sense_sleep_en = 1
bias_sleep_en = 1
data_dly = 2
clk_dly = 0
ostrtodig_sel = 0
ramp_ena = 0
sifdac_ena = 0
grp_delaya = 0x00
grp_delayb = 0x00
grp_delayc = 0x00
grp_delayd = 0x00
sifdac = 0
def __init__(self, updates=None):
if updates is None:
return
for key, value in updates.items():
if not hasattr(self, key):
raise KeyError("invalid setting", key)
setattr(self, key, value)
def get_mmap(self):
mmap = []
mmap.append(
(0x00 << 16) |
(self.qmc_offset_ena << 14) | (self.qmc_corr_ena << 12) |
(self.interpolation << 8) | (self.fifo_ena << 7) |
(self.alarm_out_ena << 4) | (self.alarm_out_pol << 3) |
(self.clkdiv_sync_ena << 2) | (self.invsinc_ena << 0))
mmap.append(
(0x01 << 16) |
(self.iotest_ena << 15) | (self.cnt64_ena << 12) |
(self.oddeven_parity << 11) | (self.single_parity_ena << 10) |
(self.dual_parity_ena << 9) | (self.rev_interface << 8) |
(self.dac_complement << 4) | (self.alarm_fifo << 1))
mmap.append(
(0x02 << 16) |
(self.dacclkgone_ena << 14) | (self.dataclkgone_ena << 13) |
(self.collisiongone_ena << 12) | (self.sif4_ena << 7) |
(self.mixer_ena << 6) | (self.mixer_gain << 5) |
(self.nco_ena << 4) | (self.revbus << 3) | (self.twos << 1))
mmap.append((0x03 << 16) | (self.coarse_dac << 12) | (self.sif_txenable << 0))
mmap.append(
(0x07 << 16) |
(self.mask_alarm_from_zerochk << 15) | (1 << 14) |
(self.mask_alarm_fifo_collision << 13) |
(self.mask_alarm_fifo_1away << 12) |
(self.mask_alarm_fifo_2away << 11) |
(self.mask_alarm_dacclk_gone << 10) |
(self.mask_alarm_dataclk_gone << 9) |
(self.mask_alarm_output_gone << 8) |
(self.mask_alarm_from_iotest << 7) | (1 << 6) |
(self.mask_alarm_from_pll << 5) | (self.mask_alarm_parity << 1))
mmap.append(
(0x08 << 16) | (self.qmc_offseta << 0))
mmap.append(
(0x09 << 16) | (self.fifo_offset << 13) | (self.qmc_offsetb << 0))
mmap.append((0x0a << 16) | (self.qmc_offsetc << 0))
mmap.append((0x0b << 16) | (self.qmc_offsetd << 0))
mmap.append((0x0c << 16) | (self.qmc_gaina << 0))
mmap.append(
(0x0d << 16) |
(self.cmix_fs8 << 15) | (self.cmix_fs4 << 14) |
(self.cmix_fs2 << 12) | (self.cmix_nfs4 << 11) |
(self.qmc_gainb << 0))
mmap.append((0x0e << 16) | (self.qmc_gainc << 0))
mmap.append(
(0x0f << 16) |
(self.output_delayab << 14) | (self.output_delaycd << 12) |
(self.qmc_gaind << 0))
mmap.append((0x10 << 16) | (self.qmc_phaseab << 0))
mmap.append((0x11 << 16) | (self.qmc_phasecd << 0))
mmap.append(
(0x18 << 16) |
(0b001 << 13) | (self.pll_reset << 12) |
(self.pll_ndivsync_ena << 11) | (self.pll_ena << 10) |
(self.pll_cp << 6) | (self.pll_p << 3))
mmap.append(
(0x19 << 16) |
(self.pll_m2 << 15) | (self.pll_m << 8) | (self.pll_n << 4) |
(self.pll_vcotune << 2))
mmap.append(
(0x1a << 16) |
(self.pll_vco << 10) | (self.bias_sleep << 7) |
(self.tsense_sleep << 6) |
(self.pll_sleep << 5) | (self.clkrecv_sleep << 4) |
(self.dac_sleep << 0))
mmap.append(
(0x1b << 16) |
(self.extref_ena << 15) | (self.fuse_sleep << 11) |
(self.atest << 0))
mmap.append(
(0x1e << 16) |
(self.syncsel_qmcoffsetab << 12) |
(self.syncsel_qmcoffsetcd << 8) |
(self.syncsel_qmccorrab << 4) |
(self.syncsel_qmccorrcd << 0))
mmap.append(
(0x1f << 16) |
(self.syncsel_mixerab << 12) | (self.syncsel_mixercd << 8) |
(self.syncsel_nco << 4) | (self.syncsel_fifo_input << 2) |
(self.sif_sync << 1))
mmap.append(
(0x20 << 16) |
(self.syncsel_fifoin << 12) | (self.syncsel_fifoout << 8) |
(self.clkdiv_sync_sel << 0))
mmap.append(
(0x22 << 16) |
(self.path_a_sel << 14) | (self.path_b_sel << 12) |
(self.path_c_sel << 10) | (self.path_d_sel << 8) |
(self.dac_a_sel << 6) | (self.dac_b_sel << 4) |
(self.dac_c_sel << 2) | (self.dac_d_sel << 0))
mmap.append(
(0x23 << 16) |
(self.dac_sleep_en << 12) | (self.clkrecv_sleep_en << 11) |
(self.pll_sleep_en << 10) | (self.lvds_data_sleep_en << 9) |
(self.lvds_control_sleep_en << 8) |
(self.temp_sense_sleep_en << 7) | (1 << 6) |
(self.bias_sleep_en << 5) | (0x1f << 0))
mmap.append(
(0x24 << 16) | (self.data_dly << 13) | (self.clk_dly << 10))
mmap.append(
(0x2d << 16) |
(self.ostrtodig_sel << 14) | (self.ramp_ena << 13) |
(0x002 << 1) | (self.sifdac_ena << 0))
mmap.append(
(0x2e << 16) | (self.grp_delaya << 8) | (self.grp_delayb << 0))
mmap.append(
(0x2f << 16) | (self.grp_delayc << 8) | (self.grp_delayd << 0))
mmap.append((0x30 << 16) | self.sifdac)
return mmap

293
artiq/coredevice/phaser.py
View File

@ -2,6 +2,8 @@ from artiq.language.core import kernel, delay_mu, delay
from artiq.coredevice.rtio import rtio_output, rtio_input_data
from artiq.language.units import us, ns, ms, MHz, dB
from artiq.language.types import TInt32
from artiq.coredevice.dac34h84 import DAC34H84
from artiq.coredevice.trf372017 import TRF372017
PHASER_BOARD_ID = 19
@ -106,10 +108,22 @@ class Phaser:
configured through a shared SPI bus that is accessed and controlled via
FPGA registers.
.. note:: Various register settings of the DAC and the quadrature
upconverters are available to be modified through the `dac`, `trf0`,
`trf1` dictionaries. These can be set through the device database
(`device_db.py`). The settings are frozen during instantiation of the
class and applied during `init()`. See the :class:`DAC34H84` and
:class:`TRF372017` source for details.
:param channel: Base RTIO channel number
:param core_device: Core device name (default: "core")
:param miso_delay: Fastlink MISO signal delay to account for cable
and buffer round trip. This might be automated later.
and buffer round trip. Tuning this might be automated later.
:param dac: DAC34H84 DAC settings as a dictionary.
:param trf0: Channel 0 TRF372017 quadrature upconverter settings as a
dictionary.
:param trf1: Channel 1 TRF372017 quadrature upconverter settings as a
dictionary.
Attributes:
@ -117,9 +131,11 @@ class Phaser:
To access oscillators, digital upconverters, PLL/VCO analog
quadrature upconverters and attenuators.
"""
kernel_invariants = {"core", "channel_base", "t_frame", "miso_delay"}
kernel_invariants = {"core", "channel_base", "t_frame", "miso_delay",
"dac_mmap"}
def __init__(self, dmgr, channel_base, miso_delay=1, core_device="core"):
def __init__(self, dmgr, channel_base, miso_delay=1, core_device="core",
dac=None, trf0=None, trf1=None):
self.channel_base = channel_base
self.core = dmgr.get(core_device)
# TODO: auto-align miso-delay in phy
@ -129,14 +145,18 @@ class Phaser:
assert self.core.ref_period == 1*ns
self.t_frame = 10*8*4
self.channel = [PhaserChannel(self, ch) for ch in range(2)]
self.dac_mmap = DAC34H84(dac).get_mmap()
self.channel = [PhaserChannel(self, ch, trf)
for ch, trf in enumerate([trf0, trf1])]
@kernel
def init(self, clk_sel=0):
"""Initialize the board.
Verifies board and chip presence, resets components, performs communication
and configuration tests and establishes initial conditions.
Verifies board and chip presence, resets components, performs
communication and configuration tests and establishes initial
conditions.
:param clk_sel: Select the external SMA clock input (1 or 0)
"""
@ -145,18 +165,28 @@ class Phaser:
raise ValueError("invalid board id")
delay(20*us) # slack
hw_rev = self.read8(PHASER_ADDR_HW_REV)
delay(.1*ms) # slack
has_upconverter = hw_rev & PHASER_HW_REV_VARIANT
gw_rev = self.read8(PHASER_ADDR_GW_REV)
delay(.1*ms) # slack
# allow a few errors during startup and alignment since boot
if self.get_crc_err() > 20:
raise ValueError("large number of frame CRC errors")
delay(.1*ms) # slack
# reset
self.set_cfg(dac_resetb=0, att0_rstn=0, att1_rstn=0, dac_txena=0)
self.set_cfg(dac_resetb=0, dac_sleep=1, att0_rstn=0, att1_rstn=0,
dac_txena=0)
self.set_leds(0x00)
self.set_fan_mu(0)
self.set_cfg(clk_sel=clk_sel, dac_txena=0) # bring everything out of reset
# bring everything out of reset, keep tx off
self.set_cfg(clk_sel=clk_sel, dac_txena=0)
# TODO: crossing dac_clk (125 MHz) edges with sync_dly (0-7 ns)
# should change the optimal fifo_offset
# should change the optimal fifo_offset by 4
self.set_sync_dly(4)
delay(.1*ms) # slack
@ -174,6 +204,10 @@ class Phaser:
if t < 10 or t > 90:
raise ValueError("DAC temperature out of bounds")
for data in self.dac_mmap:
self.dac_write(data >> 16, data)
delay(.1*ms)
patterns = [
[0xf05a, 0x05af, 0x5af0, 0xaf05], # test channel/iq/byte/nibble
[0x7a7a, 0xb6b6, 0xeaea, 0x4545], # datasheet pattern a
@ -183,206 +217,25 @@ class Phaser:
# FPGA+board+DAC skews. There is plenty of margin (>= 250 ps
# either side) and no need to tune at runtime.
# Parity provides another level of safety.
for dly in [-2]: # range(-7, 8)
if dly < 0: # use data delay, else use clock delay
dly = -dly << 3
self.dac_write(0x24, dly << 10)
for i in range(len(patterns)):
errors = self.dac_iotest(patterns[i])
if errors:
raise ValueError("DAC iotest failure")
delay(.5*ms)
qmc_corr_ena = 0 # msb ab
qmc_offset_ena = 0 # msb ab
invsinc_ena = 0 # msb ab
interpolation = 1 # 2x
fifo_ena = 1
alarm_out_ena = 1
alarm_out_pol = 1
clkdiv_sync_ena = 1
self.dac_write(0x00,
(qmc_offset_ena << 14) | (qmc_corr_ena << 12) |
(interpolation << 8) | (fifo_ena << 7) |
(alarm_out_ena << 4) | (alarm_out_pol << 3) |
(clkdiv_sync_ena << 2) | (invsinc_ena << 0))
iotest_ena = 0
cnt64_ena = 0
oddeven_parity = 0 # even
single_parity_ena = 1
dual_parity_ena = 0
rev_interface = 0
dac_complement = 0b0000 # msb A
alarm_fifo = 0b111 # msb 2-away
self.dac_write(0x01,
(iotest_ena << 15) | (cnt64_ena << 12) |
(oddeven_parity << 11) | (single_parity_ena << 10) |
(dual_parity_ena << 9) | (rev_interface << 8) |
(dac_complement << 4) | (alarm_fifo << 1))
dacclkgone_ena = 1
dataclkgone_ena = 1
collisiongone_ena = 1
sif4_ena = 1
mixer_ena = 0
mixer_gain = 1
nco_ena = 0
revbus = 0
twos = 1
self.dac_write(0x02,
(dacclkgone_ena << 14) | (dataclkgone_ena << 13) |
(collisiongone_ena << 12) | (sif4_ena << 7) |
(mixer_ena << 6) | (mixer_gain << 5) |
(nco_ena << 4) | (revbus << 3) | (twos << 1))
coarse_dac = 0xa # 20.6 mA, 0-15
sif_txenable = 0
self.dac_write(0x03, (coarse_dac << 12) | (sif_txenable << 0))
mask_alarm_from_zerochk = 0
mask_alarm_fifo_collision = 0
mask_alarm_fifo_1away = 0
mask_alarm_fifo_2away = 0
mask_alarm_dacclk_gone = 0
mask_alarm_dataclk_gone = 0
mask_alarm_output_gone = 0
mask_alarm_from_iotest = 0
mask_alarm_from_pll = 0
mask_alarm_parity = 0b0000 # msb a
self.dac_write(0x07,
(mask_alarm_from_zerochk << 15) | (1 << 14) |
(mask_alarm_fifo_collision << 13) | (mask_alarm_fifo_1away << 12) |
(mask_alarm_fifo_2away << 11) | (mask_alarm_dacclk_gone << 10) |
(mask_alarm_dataclk_gone << 9) | (mask_alarm_output_gone << 8) |
(mask_alarm_from_iotest << 7) | (1 << 6) |
(mask_alarm_from_pll << 5) | (mask_alarm_parity << 1))
qmc_offseta = 0 # 12b
self.dac_write(0x08, qmc_offseta)
fifo_offset = 2 # 0-7
qmc_offsetb = 0 # 12b
self.dac_write(0x09, (fifo_offset << 13) | qmc_offsetb)
qmc_offsetc = 0 # 12b
self.dac_write(0x0a, qmc_offsetc)
qmc_offsetd = 0 # 12b
self.dac_write(0x0b, qmc_offsetd)
qmc_gaina = 0 # 11b
self.dac_write(0x0c, qmc_gaina)
cmix_fs8 = 0
cmix_fs4 = 0
cmix_fs2 = 0
cmix_nfs4 = 0
qmc_gainb = 0 # 11b
self.dac_write(0x0d,
(cmix_fs8 << 15) | (cmix_fs4 << 14) | (cmix_fs2 << 12) |
(cmix_nfs4 << 11) | qmc_gainb)
qmc_gainc = 0 # 11b
self.dac_write(0x0e, qmc_gainc)
output_delayab = 0b00
output_delaycd = 0b00
qmc_gaind = 0 # 11b
self.dac_write(0x0f, (output_delayab << 14) | (output_delaycd << 12) |
qmc_gaind)
qmc_phaseab = 0 # 12b
self.dac_write(0x10, qmc_phaseab)
qmc_phasecd = 0 # 12b
self.dac_write(0x11, qmc_phasecd)
pll_reset = 0
pll_ndivsync_ena = 1
pll_ena = 1
pll_cp = 0b01 # single charge pump
pll_p = 0b100 # p=4
self.dac_write(0x18,
(0b001 << 13) | (pll_reset << 12) |
(pll_ndivsync_ena << 11) | (pll_ena << 10) |
(pll_cp << 6) | (pll_p << 3))
pll_m2 = 1 # x2
pll_m = 8 # m = 8
pll_n = 0b0001 # n = 2
pll_vcotune = 0b01
self.dac_write(0x19,
(pll_m2 << 15) | (pll_m << 8) | (pll_n << 4) | (pll_vcotune << 2))
delay(.5*ms) # slack
pll_vco = 0x3f # 4 GHz
bias_sleep = 0
tsense_sleep = 0
pll_sleep = 0
clkrecv_sleep = 0
dac_sleep = 0b0000 # msb a
self.dac_write(0x1a,
(pll_vco << 10) | (bias_sleep << 7) | (tsense_sleep << 6) |
(pll_sleep << 5) | (clkrecv_sleep << 4) | (dac_sleep << 0))
extref_ena = 0
fuse_sleep = 1
atest = 0b00000 # atest mode
self.dac_write(0x1b,
(extref_ena << 15) | (fuse_sleep << 11) | (atest << 0))
syncsel_qmcoffsetab = 0b1001 # sif_sync and register write
syncsel_qmcoffsetcd = 0b1001 # sif_sync and register write
syncsel_qmccorrab = 0b1001 # sif_sync and register write
syncsel_qmccorrcd = 0b1001 # sif_sync and register write
self.dac_write(0x1e,
(syncsel_qmcoffsetab << 12) | (syncsel_qmcoffsetcd << 8) |
(syncsel_qmccorrab << 4) | (syncsel_qmccorrcd << 0))
syncsel_mixerab = 0b1001 # sif_sync and register write
syncsel_mixercd = 0b1001 # sif_sync and register write
syncsel_nco = 0b1000 # sif_sync
syncsel_fifo_input = 0b10 # external lvds istr
sif_sync = 1
self.dac_write(0x1e,
(syncsel_mixerab << 12) | (syncsel_mixercd << 8) |
(syncsel_nco << 4) | (syncsel_fifo_input << 2) |
(sif_sync << 1))
syncsel_fifoin = 0b0010 # istr
syncsel_fifoout = 0b0100 # ostr
clkdiv_sync_sel = 0 # ostr
self.dac_write(0x20,
(syncsel_fifoin << 12) | (syncsel_fifoout << 8) |
(clkdiv_sync_sel << 0))
path_a_sel = 0b00
path_b_sel = 0b01
path_c_sel = 0b10
path_d_sel = 0b11
# reverse dacs (DCBA) for spectral inversion and layout
dac_a_sel = 0b11
dac_b_sel = 0b10
dac_c_sel = 0b01
dac_d_sel = 0b00
self.dac_write(0x22,
(path_a_sel << 14) | (path_b_sel << 12) |
(path_c_sel << 10) | (path_d_sel << 8) |
(dac_a_sel << 6) | (dac_b_sel << 4) |
(dac_c_sel << 2) | (dac_d_sel << 0))
dac_sleep_en = 0b1111 # msb a
clkrecv_sleep_en = 1
pll_sleep_en = 1
lvds_data_sleep_en = 1
lvds_control_sleep_en = 1
temp_sense_sleep_en = 1
bias_sleep_en = 1
self.dac_write(0x23,
(dac_sleep_en << 12) | (clkrecv_sleep_en << 11) |
(pll_sleep_en << 10) | (lvds_data_sleep_en << 9) |
(lvds_control_sleep_en << 8) | (temp_sense_sleep_en << 7) |
(1 << 6) | (bias_sleep_en << 5) | (0x1f << 0))
# self.dac_write(0x24, 0x0000) # clk and data delays (tuned above)
ostrtodig_sel = 0
ramp_ena = 0
sifdac_ena = 0
self.dac_write(0x2d,
(ostrtodig_sel << 14) | (ramp_ena << 13) | (0x002 << 1) |
(sifdac_ena << 0))
grp_delaya = 0x00
grp_delayb = 0x00
self.dac_write(0x2e, (grp_delaya << 8) | (grp_delayb << 0))
grp_delayc = 0x00
grp_delayd = 0x00
self.dac_write(0x2f, (grp_delayc << 8) | (grp_delayd << 0))
sifdac = 0
self.dac_write(0x30, sifdac)
for i in range(len(patterns)):
delay(.5*ms)
errors = self.dac_iotest(patterns[i])
if errors:
raise ValueError("DAC iotest failure")
delay(10*ms) # let it settle
lvolt = self.dac_read(0x18) & 7
delay(.1*ms)
if lvolt < 2 or lvolt > 5:
raise ValueError("DAC PLL tuning voltage out of bounds")
# self.dac_write(0x20, 0x0000) # stop fifo sync
# alarm = self.get_sta() & 1
# delay(.1*ms)
self.clear_dac_alarms()
delay(2*ms) # let it run a bit
self.check_dac_alarms()
for ch in range(2):
channel = self.channel[ch]
# test attenuator write and readback
@ -400,7 +253,7 @@ class Phaser:
asf = 0x7fff
# 6pi/4 phase
oscillator.set_amplitude_phase_mu(asf=asf, pow=0xc000, clr=1)
delay_mu(8)
delay(1*us)
# 3pi/4
channel.set_duc_phase_mu(0x6000)
channel.set_duc_cfg(select=0, clr=1)
@ -414,19 +267,17 @@ class Phaser:
# allow ripple
if (data_i < sqrt2 - 30 or data_i > sqrt2 or
abs(data_i - data_q) > 2):
print(data)
raise ValueError("DUC+oscillator phase/amplitude test failed")
# self.dac_write(0x20, 0x0000) # stop fifo sync
# alarm = self.get_sta() & 1
# delay(.1*ms)
self.clear_dac_alarms()
delay(2*ms) # let it run a bit
self.check_dac_alarms()
hw_rev = self.read8(PHASER_ADDR_HW_REV)
has_upconverter = hw_rev & PHASER_HW_REV_VARIANT
delay(.1*ms) # slack
if has_upconverter:
for data in channel.trf_mmap:
channel.trf_write(data)
delay(.1*ms)
delay(1*ms) # lock
lock_detect = self.get_sta() & (PHASER_STA_TRF0_LD << ch)
delay(.1*ms)
if not lock_detect:
raise ValueError("TRF quadrature upconverter lock failure")
self.set_cfg(clk_sel=clk_sel) # txena
@ -662,7 +513,6 @@ class Phaser:
alarm = self.get_dac_alarms()
delay(.1*ms) # slack
if alarm & ~0x0040: # ignore PLL alarms (see DS)
print(alarm)
raise ValueError("DAC alarm")
@kernel
@ -693,7 +543,9 @@ class Phaser:
if channel.get_dac_data() != data:
raise ValueError("DAC test data readback failed")
delay(.1*ms)
self.dac_write(0x01, 0x8000) # iotest_ena
cfg = self.dac_read(0x01)
delay(.1*ms)
self.dac_write(0x01, cfg | 0x8000) # iotest_ena
self.dac_write(0x04, 0x0000) # clear iotest_result
delay(.2*ms) # let it rip
# no need to go through the alarm register,
@ -706,7 +558,7 @@ class Phaser:
delay(.1*ms) # slack
else:
errors = 0
self.dac_write(0x01, 0x0000) # clear config
self.dac_write(0x01, cfg) # clear config
self.dac_write(0x04, 0x0000) # clear iotest_result
return errors
@ -741,11 +593,12 @@ class PhaserChannel:
or overflow after the interpolation. Either band-limit any changes
in the oscillator parameters or back off the amplitude sufficiently.
"""
kernel_invariants = {"index", "phaser"}
kernel_invariants = {"index", "phaser", "trf_mmap"}
def __init__(self, phaser, index):
def __init__(self, phaser, index, trf):
self.phaser = phaser
self.index = index
self.trf_mmap = TRF372017(trf).get_mmap()
self.oscillator = [PhaserOscillator(self, osc) for osc in range(5)]
@kernel

133
artiq/coredevice/trf372017.py Normal file
View File

@ -0,0 +1,133 @@
class TRF372017:
"""TRF372017 settings and register map.
For possible values, documentation, and explanation, see the datasheet.
https://www.ti.com/lit/gpn/trf372017
"""
rdiv = 21 # 13b
ref_inv = 0
neg_vco = 1
icp = 0 # 1.94 mA, 5b
icp_double = 0
cal_clk_sel = 12 # /16, 4b
ndiv = 420 # 16b
pll_div_sel = 0b01 # /1, 2b
prsc_sel = 1 # 8/9
vco_sel = 2 # 2b
vcosel_mode = 0
cal_acc = 0b00 # 2b
en_cal = 1
nfrac = 0 # 25b
pwd_pll = 0
pwd_cp = 0
pwd_vco = 0
pwd_vcomux = 0
pwd_div124 = 0
pwd_presc = 0
pwd_out_buff = 1
pwd_lo_div = 1
pwd_tx_div = 0
pwd_bb_vcm = 0
pwd_dc_off = 0
en_extvco = 0
en_isource = 0
ld_ana_prec = 0 # 2b
cp_tristate = 0 # 2b
speedup = 0
ld_dig_prec = 0
en_dith = 1
mod_ord = 2 # 3rd order, 2b
dith_sel = 0
del_sd_clk = 2 # 2b
en_frac = 0
vcobias_rtrim = 4 # 3b
pllbias_rtrim = 2 # 2b
vco_bias = 8 # 460 µA, 4b
vcobuf_bias = 2 # 2b
vcomux_bias = 3 # 2b
bufout_bias = 0 # 300 µA, 2b
vco_cal_ib = 0 # PTAT
vco_cal_ref = 2 # 1.04 V, 2b
vco_ampl_ctrl = 3 # 2b
vco_vb_ctrl = 0 # 1.2 V, 2b
en_ld_isource = 0
ioff = 0x80 # 8b
qoff = 0x80 # 8b
vref_sel = 4 # 0.85 V, 3b
tx_div_sel = 1 # div2, 2b
lo_div_sel = 3 # div8, 2b
tx_div_bias = 1 # 37.5 µA, 2b
lo_div_bias = 2 # 50 µA, 2b
vco_trim = 0x20 # 6b
vco_test_mode = 0
cal_bypass = 0
mux_ctrl = 1 # lock detect, 3b
isource_sink = 0
isource_trim = 4 # 3b
pd_tc = 0 # 2b
ib_vcm_sel = 0 # ptat
dcoffset_i = 2 # 150 µA, 2b
vco_bias_sel = 1 # spi
def __init__(self, updates=None):
if updates is None:
return
for key, value in updates.items():
if not hasattr(self, key):
raise KeyError("invalid setting", key)
setattr(self, key, value)
def get_mmap(self):
mmap = []
mmap.append(
0x9 |
(self.rdiv << 5) | (self.ref_inv << 19) | (self.neg_vco << 20) |
(self.icp << 21) | (self.icp_double << 26) |
(self.cal_clk_sel << 27))
mmap.append(
0xa |
(self.ndiv << 5) | (self.pll_div_sel << 21) | (self.prsc_sel << 23) |
(self.vco_sel << 26) | (self.vcosel_mode << 28) |
(self.cal_acc << 29) | (self.en_cal << 31))
mmap.append(0xb | (self.nfrac << 5))
mmap.append(
0xc |
(self.pwd_pll << 5) | (self.pwd_cp << 6) | (self.pwd_vco << 7) |
(self.pwd_vcomux << 8) | (self.pwd_div124 << 9) |
(self.pwd_presc << 10) | (self.pwd_out_buff << 12) |
(self.pwd_lo_div << 13) | (self.pwd_tx_div << 14) |
(self.pwd_bb_vcm << 15) | (self.pwd_dc_off << 16) |
(self.en_extvco << 17) | (self.en_isource << 18) |
(self.ld_ana_prec << 19) | (self.cp_tristate << 21) |
(self.speedup << 23) | (self.ld_dig_prec << 24) |
(self.en_dith << 25) | (self.mod_ord << 27) |
(self.dith_sel << 28) | (self.del_sd_clk << 29) |
(self.en_frac << 31))
mmap.append(
0xd |
(self.vcobias_rtrim << 5) | (self.pllbias_rtrim << 8) |
(self.vco_bias << 10) | (self.vcobuf_bias << 14) |
(self.vcomux_bias << 16) | (self.bufout_bias << 18) |
(1 << 21) | (self.vco_cal_ib << 22) | (self.vco_cal_ref << 23) |
(self.vco_ampl_ctrl << 26) | (self.vco_vb_ctrl << 28) |
(self.en_ld_isource << 31))
mmap.append(
0xe |
(self.ioff << 5) | (self.qoff << 13) | (self.vref_sel << 21) |
(self.tx_div_sel << 24) | (self.lo_div_sel << 26) |
(self.tx_div_bias << 28) | (self.lo_div_bias << 30))
mmap.append(
0xf |
(self.vco_trim << 7) | (self.vco_test_mode << 14) |
(self.cal_bypass << 15) | (self.mux_ctrl << 16) |
(self.isource_sink << 19) | (self.isource_trim << 20) |
(self.pd_tc << 23) | (self.ib_vcm_sel << 25) |
(1 << 28) | (self.dcoffset_i << 29) |
(self.vco_bias_sel << 31))
return mmap