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sayma: reduce serwb linerate to 625Mbps (make it work on saymas with 1.8v issue, related?)

This commit is contained in:
Florent Kermarrec 2018-01-20 05:48:13 +01:00
parent f4022ba872
commit 74ce7319d3
2 changed files with 2 additions and 2 deletions
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2
artiq/gateware/targets/sayma_amc_standalone.py
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@ -160,7 +160,7 @@ class Standalone(MiniSoC, AMPSoC):
self.csr_devices.append("rtm_fpga_cfg") self.csr_devices.append("rtm_fpga_cfg")
# AMC/RTM serwb # AMC/RTM serwb
serwb_pll = serwb.phy.SERWBPLL(125e6, 1.25e9, vco_div=2) serwb_pll = serwb.phy.SERWBPLL(125e6, 625e6, vco_div=2)
self.comb += serwb_pll.refclk.eq(self.crg.cd_sys.clk) self.comb += serwb_pll.refclk.eq(self.crg.cd_sys.clk)
self.submodules += serwb_pll self.submodules += serwb_pll

2
artiq/gateware/targets/sayma_rtm.py
View File

@ -140,7 +140,7 @@ class SaymaRTM(Module):
self.comb += platform.request("hmc7043_reset").eq(0) self.comb += platform.request("hmc7043_reset").eq(0)
# AMC/RTM serwb # AMC/RTM serwb
serwb_pll = serwb.phy.SERWBPLL(125e6, 1.25e9, vco_div=1) serwb_pll = serwb.phy.SERWBPLL(62.5e6, 625e6, vco_div=1)
self.submodules += serwb_pll self.submodules += serwb_pll
serwb_pads = platform.request("amc_rtm_serwb") serwb_pads = platform.request("amc_rtm_serwb")