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drtio: fix satellite transceiver clocking

This commit is contained in:
Sebastien Bourdeauducq 2017-02-04 19:18:35 +08:00
parent c39394b4d5
commit 935799dfb7
1 changed files with 9 additions and 13 deletions
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22
artiq/gateware/targets/kc705_drtio_satellite.py
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@ -45,26 +45,14 @@ class Satellite(BaseSoC):
rtio_channels.append(rtio.Channel.from_phy(phy)) rtio_channels.append(rtio.Channel.from_phy(phy))
self.comb += platform.request("sfp_tx_disable_n").eq(1) self.comb += platform.request("sfp_tx_disable_n").eq(1)
tx_pads = platform.request("sfp_tx")
rx_pads = platform.request("sfp_rx")
if cfg == "simple_gbe": if cfg == "simple_gbe":
# GTX_1000BASE_BX10 Ethernet compatible, 62.5MHz RTIO clock # GTX_1000BASE_BX10 Ethernet compatible, 62.5MHz RTIO clock
# simple TTLs # simple TTLs
self.submodules.transceiver = gtx_7series.GTX_1000BASE_BX10( transceiver = gtx_7series.GTX_1000BASE_BX10
clock_pads=platform.request("sgmii_clock"),
tx_pads=tx_pads,
rx_pads=rx_pads,
sys_clk_freq=self.clk_freq,
clock_div2=True)
elif cfg == "sawg_3g": elif cfg == "sawg_3g":
# 3Gb link, 150MHz RTIO clock # 3Gb link, 150MHz RTIO clock
# with SAWG on local RTIO and AD9154-FMC-EBZ # with SAWG on local RTIO and AD9154-FMC-EBZ
platform.add_extension(ad9154_fmc_ebz) platform.add_extension(ad9154_fmc_ebz)
self.submodules.transceiver = gtx_7series.GTX_3G(
clock_pads=platform.request("ad9154_refclk"),
tx_pads=tx_pads,
rx_pads=rx_pads,
sys_clk_freq=self.clk_freq)
ad9154_spi = platform.request("ad9154_spi") ad9154_spi = platform.request("ad9154_spi")
self.comb += ad9154_spi.en.eq(1) self.comb += ad9154_spi.en.eq(1)
@ -73,8 +61,16 @@ class Satellite(BaseSoC):
self.config["CONVERTER_SPI_DAC_CS"] = 0 self.config["CONVERTER_SPI_DAC_CS"] = 0
self.config["CONVERTER_SPI_CLK_CS"] = 1 self.config["CONVERTER_SPI_CLK_CS"] = 1
self.config["HAS_AD9516"] = None self.config["HAS_AD9516"] = None
transceiver = gtx_7series.GTX_3G
else: else:
raise ValueError raise ValueError
self.submodules.transceiver = transceiver(
clock_pads=platform.request("si5324_clkout"),
tx_pads=platform.request("sfp_tx"),
rx_pads=platform.request("sfp_rx"),
sys_clk_freq=self.clk_freq)
self.submodules.rx_synchronizer = gtx_7series.RXSynchronizer( self.submodules.rx_synchronizer = gtx_7series.RXSynchronizer(
self.transceiver.rtio_clk_freq, initial_phase=180.0) self.transceiver.rtio_clk_freq, initial_phase=180.0)
self.submodules.drtio = DRTIOSatellite( self.submodules.drtio = DRTIOSatellite(