platforms/kc705: add more clock constraints

This commit is contained in:
Florent Kermarrec 2015-02-06 13:03:38 +01:00
parent df0f27fefe
commit 7180b5273c
3 changed files with 16 additions and 1 deletions

View File

@ -121,4 +121,18 @@ def Platform(*args, toolchain="vivado", programmer="xc3sprog", **kwargs):
self.add_period_constraint(self.lookup_request("eth_clocks").rx, 8.0)
except ConstraintError:
pass
self.add_platform_command("""
create_clock -name sys_clk -period 6 [get_nets sys_clk]
create_clock -name eth_rx_clk -period 8 [get_nets eth_rx_clk]
create_clock -name eth_tx_clk -period 8 [get_nets eth_tx_clk]
set_false_path -from [get_clocks sys_clk] -to [get_clocks eth_rx_clk]
set_false_path -from [get_clocks sys_clk] -to [get_clocks eth_tx_clk]
set_false_path -from [get_clocks eth_rx_clk] -to [get_clocks sys_clk]
set_false_path -from [get_clocks eth_tx_clk] -to [get_clocks sys_clk]
set_property CFGBVS VCCO [current_design]
set_property CONFIG_VOLTAGE 2.5 [current_design]
""")
return RealPlatform(*args, **kwargs)

View File

@ -3,6 +3,7 @@ from config import *
wb.open()
regs = wb.regs
###
regs.ethphy_crg_reset.write(1)
print("sysid : 0x%04x" %regs.identifier_sysid.read())
print("revision : 0x%04x" %regs.identifier_revision.read())
print("frequency : %d MHz" %(regs.identifier_frequency.read()/1000000))

View File

@ -24,7 +24,7 @@ regs.bist_generator_length.write(64)
conditions = {}
conditions = {
"udpip_core_mac_tx_cdc_sink_stb" : 1
"udpipsocdevel_mac_tx_cdc_sink_stb" : 1
}
la.configure_term(port=0, cond=conditions)
la.configure_sum("term")