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kc705: add TTLs and shift register driver for FMC DIO

pull/842/head
Sebastien Bourdeauducq 2017-10-31 23:14:39 +08:00
parent 4deeccbead
commit d80cf8d59d
3 changed files with 66 additions and 17 deletions
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40
artiq/examples/master/device_db.py
View File

@ -34,7 +34,7 @@ device_db = {
"class": "DDSGroupAD9914",
"arguments": {
"sysclk": 3e9,
"first_dds_bus_channel": 29,
"first_dds_bus_channel": 32,
"dds_bus_count": 2,
"dds_channel_count": 3
}
@ -131,6 +131,34 @@ device_db = {
"arguments": {"channel": 26}
},
# FMC DIO used to connect to Zotino
"fmcdio_dirctl_clk": {
"type": "local",
"module": "artiq.coredevice.ttl",
"class": "TTLOut",
"arguments": {"channel": 27}
},
"fmcdio_dirctl_ser": {
"type": "local",
"module": "artiq.coredevice.ttl",
"class": "TTLOut",
"arguments": {"channel": 28}
},
"fmcdio_dirctl_latch": {
"type": "local",
"module": "artiq.coredevice.ttl",
"class": "TTLOut",
"arguments": {"channel": 29}
},
"fmcdio_dirctl": {
"type": "local",
"module": "artiq.coredevice.shiftreg",
"class": "ShiftReg",
"arguments": {"clk": "fmcdio_dirctl_clk",
"ser": "fmcdio_dirctl_ser",
"latch": "fmcdio_dirctl_latch"}
},
# DAC
"spi_ams101": {
"type": "local",
@ -148,13 +176,13 @@ device_db = {
"type": "local",
"module": "artiq.coredevice.spi",
"class": "SPIMaster",
"arguments": {"channel": 27}
"arguments": {"channel": 30}
},
"ttl_zotino_ldac": {
"type": "local",
"module": "artiq.coredevice.ttl",
"class": "TTLOut",
"arguments": {"channel": 28}
"arguments": {"channel": 31}
},
"dac_zotino": {
"type": "local",
@ -168,20 +196,20 @@ device_db = {
"type": "local",
"module": "artiq.coredevice.dds",
"class": "DDSChannelAD9914",
"arguments": {"bus_channel": 29, "channel": 0},
"arguments": {"bus_channel": 32, "channel": 0},
"comment": "Comments work in DDS panel as well"
},
"dds1": {
"type": "local",
"module": "artiq.coredevice.dds",
"class": "DDSChannelAD9914",
"arguments": {"bus_channel": 29, "channel": 1}
"arguments": {"bus_channel": 32, "channel": 1}
},
"dds2": {
"type": "local",
"module": "artiq.coredevice.dds",
"class": "DDSChannelAD9914",
"arguments": {"bus_channel": 29, "channel": 2}
"arguments": {"bus_channel": 32, "channel": 2}
},
# Controllers

28
artiq/gateware/targets/kc705_dds.py
View File

@ -98,35 +98,41 @@ _ams101_dac = [
]
_sdcard_spi_33 = [
("sdcard_spi_33", 0,
("sdcard_spi_33", 0,
Subsignal("miso", Pins("AC20"), Misc("PULLUP")),
Subsignal("clk", Pins("AB23")),
Subsignal("mosi", Pins("AB22")),
Subsignal("cs_n", Pins("AC21")),
IOStandard("LVCMOS33")
)
)
]
_zotino = [
("fmcdio_dirctl", 0,
Subsignal("clk", Pins("HPC:LA32_N")),
Subsignal("ser", Pins("HPC:LA33_P")),
Subsignal("latch", Pins("HPC:LA32_P")),
IOStandard("LVCMOS33")
),
("zotino_spi_p", 0,
Subsignal("clk", Pins("HPC:LA08_P")),
Subsignal("mosi", Pins("HPC:LA09_P")),
Subsignal("miso", Pins("HPC:LA10_P")),
Subsignal("cs_n", Pins("HPC:LA11_P")),
IOStandard("LVDS_25")
),
),
("zotino_spi_n", 0,
Subsignal("clk", Pins("HPC:LA08_N")),
Subsignal("mosi", Pins("HPC:LA09_N")),
Subsignal("miso", Pins("HPC:LA10_N")),
Subsignal("cs_n", Pins("HPC:LA11_N")),
IOStandard("LVDS_25")
),
),
("zotino_ldac", 0,
Subsignal("p", Pins("HPC:LA13_P")),
Subsignal("n", Pins("HPC:LA13_N")),
IOStandard("LVDS_25"), Misc("DIFF_TERM=TRUE")
)
)
]
class _NIST_Ions(MiniSoC, AMPSoC):
@ -254,13 +260,19 @@ class NIST_CLOCK(_NIST_Ions):
rtio_channels.append(rtio.Channel.from_phy(
phy, ofifo_depth=128, ififo_depth=128))
phy = spi.SPIMaster(platform.request("sdcard_spi_33", 0))
phy = spi.SPIMaster(platform.request("sdcard_spi_33"))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(
phy, ofifo_depth=4, ififo_depth=4))
sdac_phy = spi.SPIMaster(self.platform.request("zotino_spi_p", 0),
self.platform.request("zotino_spi_n", 0))
fmcdio_dirctl = self.platform.request("fmcdio_dirctl")
for s in fmcdio_dirctl.clk, fmcdio_dirctl.ser, fmcdio_dirctl.latch:
phy = ttl_simple.Output(s)
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy))
sdac_phy = spi.SPIMaster(self.platform.request("zotino_spi_p"),
self.platform.request("zotino_spi_n"))
self.submodules += sdac_phy
rtio_channels.append(rtio.Channel.from_phy(sdac_phy, ififo_depth=4))

15
doc/manual/core_device.rst
View File

@ -68,7 +68,13 @@ With the CLOCK hardware, the TTL lines are mapped as follows:
+--------------------+-----------------------+--------------+
| 21 | LA32_P | Clock |
+--------------------+-----------------------+--------------+
| 28 | ZOTINO_LDAC | Output |
| 27 | FMCDIO_DIRCTL_CLK | Output |
+--------------------+-----------------------+--------------+
| 28 | FMCDIO_DIRCTL_SER | Output |
+--------------------+-----------------------+--------------+
| 29 | FMCDIO_DIRCTL_LATCH | Output |
+--------------------+-----------------------+--------------+
| 31 | ZOTINO_LDAC | Output |
+--------------------+-----------------------+--------------+
The board has RTIO SPI buses mapped as follows:
@ -86,11 +92,14 @@ The board has RTIO SPI buses mapped as follows:
+--------------+--------------+--------------+--------------+------------+
| 26 | MMC_SPI_CS_N | MMC_SPI_MOSI | MMC_SPI_MISO | MMC_SPI_CLK|
+--------------+--------------+--------------+--------------+------------+
| 27 | ZOTINO_CS_N | ZOTINO_MOSI | ZOTINO_MISO | ZOTINO_CLK |
| 30 | ZOTINO_CS_N | ZOTINO_MOSI | ZOTINO_MISO | ZOTINO_CLK |
+--------------+--------------+--------------+--------------+------------+
The DDS bus is on channel 29.
The DDS bus is on channel 32.
This configuration supports a Zotino connected to the KC705 FMC HPC through a FMC DIO 32ch LVDS v1.2 and a VHDCI breakout board rev 1.0.
The shift registers on the FMC card should be configured to set the directions of its LVDS buffers, using :mod:`artiq.coredevice.shiftreg`.
NIST QC2
++++++++