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devices/runtime: allow 1ms for all initial DDS programming

This commit is contained in:
Sebastien Bourdeauducq 2014-10-14 12:47:24 +08:00
parent 7d48ef263a
commit 2449348f31
1 changed files with 3 additions and 1 deletions
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4
artiq/devices/runtime.py
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@ -1,4 +1,5 @@
import os import os
from fractions import Fraction
from llvm import core as lc from llvm import core as lc
from llvm import target as lt from llvm import target as lt
@ -138,7 +139,8 @@ def _debug_dump_obj(obj):
class Environment(LinkInterface): class Environment(LinkInterface):
def __init__(self, ref_period): def __init__(self, ref_period):
self.ref_period = ref_period self.ref_period = ref_period
self.initial_time = 4000 # allow 1ms for all initial DDS programming
self.initial_time = int(Fraction(1, 1000)/self.ref_period)
def emit_object(self): def emit_object(self):
tm = lt.TargetMachine.new(triple="or1k", cpu="generic") tm = lt.TargetMachine.new(triple="or1k", cpu="generic")