Dear Ziang Gao,
I wrote a rather lengthy answer to this question on usrp-users,
yesterday [1]. Did that not reach you? To sum things up:
> a float32 should have enough precision to handle my time value
is, sadly, wrong:
import time
import numpy as np
t = time.time()
print t - numpy.float32(t)
4
Hello,
I'm writing a block doing signal processing and then append the current time
and output to a file sink, however, I found the output really strange because
all time values are the same. Then I tried to write another block to test with
my time value. Here is the block and qa file
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