Difference between revisions of "User:Dvw/Spider slow jitter/Lag slow data fix"

From MCEWiki
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:'''''NB:''' The following has fast data with 10 samples-per-frame rather than the actual number of 20 just to make the table smaller.''
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:'''''NB:''' The following has fast data with 10 samples-per-frame (=<tt>''FAST_PER_SLOW''</tt>) rather than the actual number of 20 just to make the table smaller.''
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This is a solution to [[User:Dvw/Spider slow jitter|Spider slow jitter]] which happens by only writing slow data on slow frame boundaries.  (''i.e.'' whenever <tt>mx % FAST_PER_SLOW = FAST_PER_SLOW - 1</tt>, write the latest slow data that you have. As before, green cells are fake data; red cells are repeated data.  We also have to detect instances where the above condition is never true during a slow frame and add data to keep slow and fast data aligned.  '''This solution can result in discarded data''' (if the above condition hold multiple times in a single slow frame).
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This is a solution to [[User:Dvw/Spider slow jitter|Spider slow jitter]] which happens by only writing slow data when the input concludes a slow frame.  ''i.e.'' whenever
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MX % FAST_PER_SLOW = FAST_PER_SLOW - 1                     (1)
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 +
is true, write the latest slow data that you have.
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 +
We also have to detect instances where (1) is never true during a slow frame and add data to keep slow and fast data aligned (see the fourth slow frame below).  '''This solution can result in discarded data''', if (1) is true multiple times in a single slow frame. As before, green cells are fake data; red cells are repeated data.
 
{| class="wikitable"
 
{| class="wikitable"
 
|+ Lag slow data fix.
 
|+ Lag slow data fix.

Revision as of 15:18, 29 May 2015

NB: The following has fast data with 10 samples-per-frame (=FAST_PER_SLOW) rather than the actual number of 20 just to make the table smaller.

This is a solution to Spider slow jitter which happens by only writing slow data when the input concludes a slow frame. i.e. whenever 

MX % FAST_PER_SLOW = FAST_PER_SLOW - 1                      (1)

is true, write the latest slow data that you have.

We also have to detect instances where (1) is never true during a slow frame and add data to keep slow and fast data aligned (see the fourth slow frame below). This solution can result in discarded data, if (1) is true multiple times in a single slow frame. As before, green cells are fake data; red cells are repeated data.

Lag slow data fix.
SLOW FRAME BOUNDARY
fast[ 0] slowMX=0[0] slowMX=1[0] slowMX=2[0] slowMX=3[0] slowMX=4[0] slowMX=5[0] slowMX=6[0] slowMX=7[0] slowMX=8[0] slowMX=9[0]
fast[ 1]
fast[ 2]
fast[ 3]
fast[ 4]
fast[ 5]
fast[ 6]
fast[ 7]
fast[ 8]
fast[ 9]
SLOW FRAME BOUNDARY
fast[10] slowMX=0[1] slowMX=1[1] slowMX=2[1] slowMX=3[1] slowMX=4[1] slowMX=5[1] slowMX=6[1] slowMX=7[1] slowMX=8[1] slowMX=9[1]
fast[11]
fast[12]
fast[13]
fast[14]
fast[15]
fast[16]
fast[17]
fast[18]
fast[19]
SLOW FRAME BOUNDARY
fast[20] slowMX=0[2] slowMX=1[2] slowMX=2[2] slowMX=3[2] slowMX=4[2] slowMX=5[2] slowMX=6[2] slowMX=7[2] slowMX=8[2] slowMX=9[2]
fast[21]
fast[22]
fast[23]
fast[24]
fast[25]
fast[26]
fast[27]
fast[28]
fast[29]
SLOW FRAME BOUNDARY
fast[30] slowMX=0[3] slowMX=1[3] slowMX=2[3] slowMX=3[3] slowMX=4[3] slowMX=5[3] slowMX=6[3] slowMX=7[2] slowMX=8[2] slowMX=9[2]
fast[31]
fast[32]
fast[33]
fast[34]
fast[35]
fast[36]
fast[37]
fast[38]
fast[39]
SLOW FRAME BOUNDARY
fast[40]                    
fast[41]
fast[42] slowMX=0[3] slowMX=1[3] slowMX=2[3] slowMX=3[3] slowMX=4[3] slowMX=5[3] slowMX=6[3] slowMX=7[3] slowMX=8[3] slowMX=9[3]
fast[43]
fast[44]
fast[45]
fast[46]
fast[47]
fast[48]
fast[49]
SLOW FRAME BOUNDARY
fast[50]                    
fast[51]
fast[52] slowMX=0[4] slowMX=1[4] slowMX=2[4] slowMX=3[4] slowMX=4[4] slowMX=5[4] slowMX=6[4] slowMX=7[4] slowMX=8[4] slowMX=9[4]
fast[53]
fast[54]
fast[55]
fast[56]
fast[57]
fast[58]
fast[59]
[&c.]
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