srenblad
/
artiq
forked from M-Labs/artiq
1
0
Fork 0
Code Pull Requests Activity

kasli2: forward sma_clkin to si5324

This commit is contained in:
Sebastien Bourdeauducq 2020-09-17 16:53:43 +08:00
parent bff611a888
commit 29c940f4e3
1 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
artiq/gateware/targets/kasli.py
View File

@ -79,6 +79,21 @@ class _RTIOCRG(Module, AutoCSR):
]
class SMAClkinForward(Module):
def __init__(self, platform):
sma_clkin = platform.request("sma_clkin")
sma_clkin_se = Signal()
sma_clkin_buffered = Signal()
cdr_clk_se = Signal()
cdr_clk = platform.request("cdr_clk")
self.specials += [
Instance("IBUFDS", i_I=sma_clkin.p, i_IB=sma_clkin.n, o_O=sma_clkin_se),
Instance("BUFIO", i_I=sma_clkin_se, o_O=sma_clkin_buffered),
Instance("ODDR", i_C=sma_clkin_buffered, i_CE=1, i_D1=0, i_D2=1, o_Q=cdr_clk_se),
Instance("OBUFDS", i_I=cdr_clk_se, o_O=cdr_clk.p, o_OB=cdr_clk.n)
]
def fix_serdes_timing_path(platform):
# ignore timing of path from OSERDESE2 through the pad to ISERDESE2
platform.add_platform_command(
@ -115,6 +130,7 @@ class StandaloneBase(MiniSoC, AMPSoC):
self.submodules.error_led = gpio.GPIOOut(Cat(
self.platform.request("error_led")))
self.csr_devices.append("error_led")
self.submodules += SMAClkinForward(self.platform)
i2c = self.platform.request("i2c")
self.submodules.i2c = gpio.GPIOTristate([i2c.scl, i2c.sda])
@ -294,6 +310,9 @@ class MasterBase(MiniSoC, AMPSoC):
platform = self.platform
if platform.hw_rev == "v2.0":
self.submodules += SMAClkinForward(platform)
i2c = self.platform.request("i2c")
self.submodules.i2c = gpio.GPIOTristate([i2c.scl, i2c.sda])
self.csr_devices.append("i2c")