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phaser: add sync ttl input for monitoring

This commit is contained in:
Robert Jördens 2016-10-10 16:13:50 +02:00
parent f5f7acc1f8
commit 18d18b6685
3 changed files with 26 additions and 11 deletions
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14
artiq/examples/phaser/device_db.pyon
View File

@ -44,28 +44,34 @@
"class": "TTLInOut",
"arguments": {"channel": 2}
},
"sync": {
"type": "local",
"module": "artiq.coredevice.ttl",
"class": "TTLInOut",
"arguments": {"channel": 3}
},
"sawg0": {
"type": "local",
"module": "artiq.coredevice.sawg",
"class": "SAWG",
"arguments": {"channel_base": 3, "parallelism": 4}
"arguments": {"channel_base": 4, "parallelism": 4}
},
"sawg1": {
"type": "local",
"module": "artiq.coredevice.sawg",
"class": "SAWG",
"arguments": {"channel_base": 6, "parallelism": 4}
"arguments": {"channel_base": 7, "parallelism": 4}
},
"sawg2": {
"type": "local",
"module": "artiq.coredevice.sawg",
"class": "SAWG",
"arguments": {"channel_base": 9, "parallelism": 4}
"arguments": {"channel_base": 10, "parallelism": 4}
},
"sawg3": {
"type": "local",
"module": "artiq.coredevice.sawg",
"class": "SAWG",
"arguments": {"channel_base": 12, "parallelism": 4}
"arguments": {"channel_base": 13, "parallelism": 4}
}
}

19
artiq/gateware/targets/kc705.py
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@ -149,8 +149,10 @@ class _NIST_Ions(MiniSoC, AMPSoC):
self.register_kernel_cpu_csrdevice("i2c")
self.config["I2C_BUS_COUNT"] = 1
def add_rtio(self, rtio_channels, crg=_RTIOCRG):
self.submodules.rtio_crg = crg(self.platform, self.crg.cd_sys.clk)
def add_rtio(self, rtio_channels, rtio_crg=None):
if rtio_crg is None:
rtio_crg = _RTIOCRG(self.platform, self.crg.cd_sys.clk)
self.submodules.rtio_crg = rtio_crg
self.csr_devices.append("rtio_crg")
self.submodules.rtio = rtio.RTIO(rtio_channels)
self.register_kernel_cpu_csrdevice("rtio")
@ -454,6 +456,7 @@ class AD9154(Module, AutoCSR):
jesd_sync = Signal()
self.specials += DifferentialInput(
sync_pads.p, sync_pads.n, jesd_sync)
self.jesd_sync = jesd_sync
ps = JESD204BPhysicalSettings(l=4, m=4, n=16, np=16)
ts = JESD204BTransportSettings(f=2, s=1, k=16, cs=1)
@ -510,6 +513,12 @@ class Phaser(_NIST_Ions):
rtio_channels.append(rtio.Channel.from_phy(phy, ififo_depth=32,
ofifo_depth=2))
jesd_sync = Signal()
phy = ttl_simple.Input(jesd_sync)
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy, ififo_depth=32,
ofifo_depth=2))
self.config["RTIO_REGULAR_TTL_COUNT"] = len(rtio_channels)
self.config["RTIO_FIRST_SAWG_CHANNEL"] = len(rtio_channels)
@ -522,11 +531,8 @@ class Phaser(_NIST_Ions):
self.config["RTIO_LOG_CHANNEL"] = len(rtio_channels)
rtio_channels.append(rtio.LogChannel())
self.add_rtio(rtio_channels, _PhaserCRG)
self.add_rtio(rtio_channels, _PhaserCRG(platform, self.crg.cd_sys.clk))
# jesd_sysref = Signal()
# self.specials += DifferentialInput(
# sysref_pads.p, sysref_pads.n, jesd_sysref)
to_rtio = ClockDomainsRenamer({"sys": "rtio"})
self.submodules.ad9154 = to_rtio(AD9154(platform, self.rtio_crg))
self.register_kernel_cpu_csrdevice("ad9154")
@ -537,6 +543,7 @@ class Phaser(_NIST_Ions):
"converter{}".format(i))
# while at 5 GBps, take every second sample... FIXME
self.comb += conv.eq(Cat(ch.o[::2]))
self.comb += jesd_sync.eq(self.ad9154.jesd_sync)
def main():

4
doc/manual/core_device.rst
View File

@ -170,8 +170,10 @@ The Phaser adapter is an AD9154-FMC-EBZ, a 4 channel 2.4 GHz DAC on an FMC HPC c
+--------------+------------+--------------+
| 2 | SYSREF | Input |
+--------------+------------+--------------+
| 3 | SYNC | Input |
+--------------+------------+--------------+
The SAWG channels start with RTIO channel number 3, each occupying 3 channels.
The SAWG channels start with RTIO channel number 4, each occupying 3 channels.
The board has one non-RTIO SPI bus that is accessible through
:mod:`artiq.coredevice.ad9154`.