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gateware: add Zotino SPI to NIST CLOCK target

pull/842/head
Sebastien Bourdeauducq 2017-10-23 15:04:30 +08:00
parent 4fa823b62a
commit 5803ac9998
4 changed files with 45 additions and 9 deletions
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6
RELEASE_NOTES.rst
View File

@ -3,10 +3,10 @@
Release notes
=============
4.0
---
4.0 (unreleased)
----------------
No further notes.
* The DDS channel number for the NIST CLOCK target has changed.
3.0

8
artiq/examples/master/device_db.py
View File

@ -33,7 +33,7 @@ device_db = {
"class": "DDSGroupAD9914",
"arguments": {
"sysclk": 3e9,
"first_dds_bus_channel": 26,
"first_dds_bus_channel": 29,
"dds_bus_count": 2,
"dds_channel_count": 3
}
@ -156,20 +156,20 @@ device_db = {
"type": "local",
"module": "artiq.coredevice.dds",
"class": "DDSChannelAD9914",
"arguments": {"bus_channel": 27, "channel": 0},
"arguments": {"bus_channel": 29, "channel": 0},
"comment": "Comments work in DDS panel as well"
},
"dds1": {
"type": "local",
"module": "artiq.coredevice.dds",
"class": "DDSChannelAD9914",
"arguments": {"bus_channel": 27, "channel": 1}
"arguments": {"bus_channel": 29, "channel": 1}
},
"dds2": {
"type": "local",
"module": "artiq.coredevice.dds",
"class": "DDSChannelAD9914",
"arguments": {"bus_channel": 27, "channel": 2}
"arguments": {"bus_channel": 29, "channel": 2}
},
"lda": {

34
artiq/gateware/targets/kc705_dds.py
View File

@ -107,6 +107,27 @@ _sdcard_spi_33 = [
)
]
_zotino = [
("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):
mem_map = {
@ -142,6 +163,7 @@ class _NIST_Ions(MiniSoC, AMPSoC):
self.platform.add_extension(_sma33_io)
self.platform.add_extension(_ams101_dac)
self.platform.add_extension(_sdcard_spi_33)
self.platform.add_extension(_zotino)
i2c = self.platform.request("i2c")
self.submodules.i2c = gpio.GPIOTristate([i2c.scl, i2c.sda])
@ -236,7 +258,17 @@ class NIST_CLOCK(_NIST_Ions):
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(
phy, ofifo_depth=4, ififo_depth=4))
phy = spi.SPIMaster(self.platform.request("zotino_spi_p", 0),
self.platform.request("zotino_spi_n", 0))
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy, ififo_depth=4))
pads = platform.request("zotino_ldac")
phy = ttl_serdes_7series.Output_8X(pads.p, pads.n)
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy))
phy = dds.AD9914(platform.request("dds"), 11, onehot=True)
self.submodules += phy
rtio_channels.append(rtio.Channel.from_phy(phy,

6
doc/manual/core_device.rst
View File

@ -68,6 +68,8 @@ With the CLOCK hardware, the TTL lines are mapped as follows:
+--------------------+-----------------------+--------------+
| 21 | LA32_P | Clock |
+--------------------+-----------------------+--------------+
| 28 | ZOTINO_LDAC | Output |
+--------------------+-----------------------+--------------+
The board has RTIO SPI buses mapped as follows:
@ -84,8 +86,10 @@ 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 |
+--------------+--------------+--------------+--------------+------------+
The DDS bus is on channel 27.
The DDS bus is on channel 29.
NIST QC2