forked from M-Labs/artiq
sawg: artiq-python list scoping
This commit is contained in:
parent
c53040e1e4
commit
313aa32779
|
@ -62,44 +62,36 @@ class Spline:
|
|||
rtio_output_list(now_mu(), self.channel, 0, value)
|
||||
|
||||
@portable(flags={"fast-math"})
|
||||
def pack_coeff_mu(self, coeff) -> TList(TInt32):
|
||||
n = len(coeff)
|
||||
width = n*self.width + (n - 1)*n//2*self.time_width
|
||||
packed = [int32(0)] * ((width + 31)//32)
|
||||
def pack_coeff_mu(self, coeff, packed):
|
||||
pos = 0
|
||||
for i in range(n):
|
||||
for i in range(len(coeff)):
|
||||
wi = self.width + i*self.time_width
|
||||
ci = coeff[i]
|
||||
while wi:
|
||||
while wi != 0:
|
||||
j = pos//32
|
||||
used = pos - 32*j
|
||||
avail = 32 - used
|
||||
if avail > wi:
|
||||
avail = wi
|
||||
packed[j] |= (ci & ((1 << avail) - 1)) << used
|
||||
packed[j] |= int32(ci & ((1 << avail) - 1)) << used
|
||||
ci >>= avail
|
||||
wi -= avail
|
||||
pos += avail
|
||||
return packed
|
||||
|
||||
@portable(flags={"fast-math"})
|
||||
def coeff_to_mu(self, coeff) -> TList(TInt32):
|
||||
n = len(coeff)
|
||||
coeff64 = [int64(0)] * n
|
||||
for i in range(n):
|
||||
def coeff_to_mu(self, coeff, coeff64):
|
||||
for i in range(len(coeff)):
|
||||
vi = coeff[i] * self.scale
|
||||
for j in range(i):
|
||||
vi *= self.time_scale
|
||||
ci = int(round(vi))
|
||||
coeff64[i] = ci
|
||||
# artiq.wavesynth.coefficients.discrete_compensate:
|
||||
continue
|
||||
if i == 2:
|
||||
coeff64[1] += ci >> (self.time_width + 1)
|
||||
elif i == 3:
|
||||
coeff64[2] += ci >> self.time_width
|
||||
coeff64[1] += (ci // 3) >> (2*self.time_width + 1)
|
||||
return self.pack_coeff_mu(coeff64)
|
||||
|
||||
@kernel
|
||||
def set_list(self, value):
|
||||
|
@ -108,7 +100,13 @@ class Spline:
|
|||
:param value: List of floating point spline knot coefficients,
|
||||
lowest order (constant) coefficient first.
|
||||
"""
|
||||
self.set_list_mu(self.coeff_to_mu(value))
|
||||
n = len(value)
|
||||
width = n*self.width + (n - 1)*n//2*self.time_width
|
||||
coeff64 = [int64(0)] * n
|
||||
packed = [int32(0)] * ((width + 31)//32)
|
||||
self.coeff_to_mu(value, coeff64)
|
||||
self.pack_coeff_mu(coeff64, packed)
|
||||
self.set_list_mu(packed)
|
||||
|
||||
@kernel(flags={"fast-math"})
|
||||
def smooth(self, start: TFloat, stop: TFloat, duration: TFloat,
|
||||
|
|
|
@ -104,12 +104,18 @@ class SAWGTest(unittest.TestCase):
|
|||
|
||||
def test_coeff(self):
|
||||
import struct
|
||||
for v in [-.1], [.1, -.01], [.1, .01, -.00001], \
|
||||
[.1, .01, .00001, -.000000001]:
|
||||
# these get discrete_compensate
|
||||
# [.1, .01, -.00001], [.1, .01, .00001, -.000000001]
|
||||
for v in [-.1], [.1, -.01]:
|
||||
ch = self.driver.offset
|
||||
p = ch.coeff_to_mu(v)
|
||||
q = [0] * len(v)
|
||||
ch.coeff_to_mu(v, q)
|
||||
n = len(v)
|
||||
t = ch.time_width
|
||||
w = ch.width
|
||||
p = [0] * ((n*w + (n - 1)*n//2*t + 31)//32)
|
||||
ch.pack_coeff_mu(q, p)
|
||||
p = [_ & 0xffffffff for _ in p]
|
||||
p0 = [int(round(vi*ch.scale*ch.time_scale**i))
|
||||
for i, vi in enumerate(v)]
|
||||
p0 = [struct.pack("<" + "_bhiiqqqq"[(w + i*t)//8], vi
|
||||
|
@ -135,19 +141,28 @@ class SAWGTest(unittest.TestCase):
|
|||
self.assertEqual(out[2*i], v)
|
||||
self.assertEqual(out[2*i+1], v)
|
||||
|
||||
def test_pack(self):
|
||||
def pack(self, v):
|
||||
n = len(v)
|
||||
ch = self.driver.offset
|
||||
self.assertEqual(ch.pack_coeff_mu([1]), [1])
|
||||
self.assertEqual(ch.pack_coeff_mu([1, 1 << 16]), [1, 1])
|
||||
self.assertEqual(ch.pack_coeff_mu([1, 1 << 32]), [1, 0])
|
||||
self.assertEqual(ch.pack_coeff_mu([0x1234, 0xa5a5a5a5]),
|
||||
t = ch.time_width
|
||||
w = ch.width
|
||||
p = [0] * ((n*w + (n - 1)*n//2*t + 31)//32)
|
||||
ch.pack_coeff_mu(v, p)
|
||||
p = [_ & 0xffffffff for _ in p]
|
||||
return p
|
||||
|
||||
def test_pack(self):
|
||||
self.assertEqual(self.pack([1]), [1])
|
||||
self.assertEqual(self.pack([1, 1 << 16]), [1, 1])
|
||||
self.assertEqual(self.pack([1, 1 << 32]), [1, 0])
|
||||
self.assertEqual(self.pack([0x1234, 0xa5a5a5a5]),
|
||||
[0xa5a51234, 0xa5a5])
|
||||
self.assertEqual(ch.pack_coeff_mu([1, 2, 3, 4]),
|
||||
self.assertEqual(self.pack([1, 2, 3, 4]),
|
||||
[0x20001, 0x30000, 0, 4, 0])
|
||||
self.assertEqual(ch.pack_coeff_mu([-1, -2, -3, -4]),
|
||||
self.assertEqual(self.pack([-1, -2, -3, -4]),
|
||||
[0xfffeffff, 0xfffdffff, 0xffffffff,
|
||||
0xfffffffc, 0xffffffff])
|
||||
self.assertEqual(ch.pack_coeff_mu([0, -1, 0, -1]),
|
||||
self.assertEqual(self.pack([0, -1, 0, -1]),
|
||||
[0xffff0000, 0x0000ffff, 0,
|
||||
0xffffffff, 0xffffffff])
|
||||
|
||||
|
@ -171,3 +186,6 @@ class SAWGTest(unittest.TestCase):
|
|||
ch.set(.2)
|
||||
delay_mu(1*8)
|
||||
out = self.run_channel(self.rtio_manager.outputs)
|
||||
# import matplotlib.pyplot as plt
|
||||
# plt.plot(out)
|
||||
# plt.show()
|
||||
|
|
Loading…
Reference in New Issue