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cndm: Set MAC clock frequency and rate in core testbench, remove commented out code

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich
2026-03-06 19:20:03 -08:00
parent f464a21e1d
commit 41b87dc65c
1 changed files with 12 additions and 49 deletions
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61
src/cndm/tb/cndm_micro_pcie_us/test_cndm_micro_pcie_us.py
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@@ -278,8 +278,18 @@ class TB:
# Ethernet
self.port_mac = []
eth_clock_period = 3.2
eth_speed = 10e9
if len(dut.mac_axis_tx[0].tdata) == 512:
# assuming US+ 100G CMAC, 512 bits at 322.265625 MHz
eth_clock_period = 3.102
eth_speed = 100e9
elif len(dut.mac_axis_tx[0].tdata) == 64:
# assuming 25G MAC in low-latency mode, 64 bits at 402.83203125 MHz
eth_clock_period = 2.482
eth_speed = 25e9
else:
# assuming 25G MAC in low-latency mode, 512 bits at 322.265625 MHz
eth_clock_period = 3.102
eth_speed = 10e9
for k in range(len(dut.mac_axis_tx)):
cocotb.start_soon(Clock(dut.mac_tx_clk[k], eth_clock_period, units="ns").start())
@@ -302,53 +312,6 @@ class TB:
)
self.port_mac.append(mac)
# cocotb.start_soon(Clock(dut.sfp_mgt_refclk_p, 6.4, units="ns").start())
# self.sfp_sources = []
# self.sfp_sinks = []
# for ch in dut.uut.sfp_mac_inst.ch:
# gt_inst = ch.ch_inst.gt.gt_inst
# if ch.ch_inst.DATA_W.value == 64:
# if ch.ch_inst.CFG_LOW_LATENCY.value:
# clk = 2.482
# gbx_cfg = (66, [64, 65])
# else:
# clk = 2.56
# gbx_cfg = None
# else:
# if ch.ch_inst.CFG_LOW_LATENCY.value:
# clk = 3.102
# gbx_cfg = (66, [64, 65])
# else:
# clk = 3.2
# gbx_cfg = None
# cocotb.start_soon(Clock(gt_inst.tx_clk, clk, units="ns").start())
# cocotb.start_soon(Clock(gt_inst.rx_clk, clk, units="ns").start())
# self.sfp_sources.append(BaseRSerdesSource(
# data=gt_inst.serdes_rx_data,
# data_valid=gt_inst.serdes_rx_data_valid,
# hdr=gt_inst.serdes_rx_hdr,
# hdr_valid=gt_inst.serdes_rx_hdr_valid,
# clock=gt_inst.rx_clk,
# slip=gt_inst.serdes_rx_bitslip,
# reverse=True,
# gbx_cfg=gbx_cfg
# ))
# self.sfp_sinks.append(BaseRSerdesSink(
# data=gt_inst.serdes_tx_data,
# data_valid=gt_inst.serdes_tx_data_valid,
# hdr=gt_inst.serdes_tx_hdr,
# hdr_valid=gt_inst.serdes_tx_hdr_valid,
# gbx_sync=gt_inst.serdes_tx_gbx_sync,
# clock=gt_inst.tx_clk,
# reverse=True,
# gbx_cfg=gbx_cfg
# ))
#
self.loopback_enable = False
cocotb.start_soon(self._run_loopback())